Sterling/Great Bend Mid-Mount Loader OPERATOR INSTALLATION & PARTS MANUAL Complete the Delivery / Warranty Registration Card This Manual must be delivered To the Owner at time Of Machine Delivery. Read and Save This Manual KMW Ltd. 198 N. Hwy 281 Great Bend, Kansas 67530 USA Tel: (800) 445-7388 Fax: (620) 793-6737 www.kmwloaders.com 2503-1042 Rev. J March 2010
FOREWORD You are now the proud owner of a KMW Loader. This loader is a product of KMW quality engineering and manufacturing. It is made of fine materials and under a rigid quality control system. It will give you long, satisfactory service. To obtain the best use of your loader, please read this manual carefully. It will help you become familiar with the operation of the loader and contains many helpful hints about loader maintenance. It is KMW s policy to utilize as quickly as possible every advance in our research. The immediate use of new techniques in the manufacture of products many cause some small parts of this manual to be outdated. KMW dealers will have the most up-to-date information. Please do not hesitate to consult with them. SAFETY FIRST This symbol, the industry s Safety Alert Symbol, is used throughout this manual and on labels on the front loader itself to warn of the possibility of personal injury. Read these instructions carefully. It is essential that you read the instructions and safety regulations before you attempt to assemble or use this unit. DANGER: WARNING: CAUTION: IMPORTANT: NOTE: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. Indicates that equipment or property damage could result if instructions are not followed. Gives helpful information 2
SAFETY PRECAUTIONS Most loader equipment accidents can be avoided by following simple safety precautions. These safety precautions, if followed at all times, will help you operate your loader safely. Understand that your safety and the safety of other persons is measured by how you service and operate this loader. Know the position and operations of all controls before you try to operate. Make sure you check all controls in a safe area before starting your work. The safety information given in this manual does not replace safety codes, insurance requirements, federal, state, and local laws. Make sure your machine has the correct equipment required by your local laws and regulations. 1. Read and understand both the tractor and the loader Operator Manuals before using the loader. Lack of knowledge can lead to accidents. 2. It is the loader owner s responsibility to make sure anyone operating the loader reads and understands this manual first before operating the machine. 3. The tractor should be equipped with an approved rollover-protective structure (ROPS) or ROPS Cab and seat belt. Use seat belt as specified by tractor/rops manufacturer. 4. Do not lift or carry anybody on the loader, bucket or attachment. 5. Do not allow bystanders in loader work area. 6. Never allow anyone to get under the loader bucket or attachment or reach through the loader boom when the bucket or attachment is raised. 7. Do not walk or work under a raised loader bucket or attachment unless it is securely blocked and held in position. 8. Use extreme caution when operating on a slope; always operate up and down the slope, never across the slope. 9. Add wheel ballast and/or rear weight to counterbalance tractor/loader for stability at maximum loader capacity. Additional counterweight requirements will vary with loader attachments and equipment application. 10. Move the wheels to the tractor manufacturer s widest recommended settings to increase stability. 11. For better stability, always use a tractor equipped with a wide front axle, never use a tractor equipped with a tricycle type front axle. 12. Move and turn the tractor at low speeds. 13. Never travel at high speeds with bucket loaded. 14. Carry loader boom at a low position during normal operation. 15. Use caution when operating the loader with a raised bucket or attachment. A raised loader changes the center of gravity of the machine and increases the possibility of tip over. 16. Avoid driving over loose fill, rocks, holes, or anything that may be dangerous for loader operation or movement. 17. Avoid overhead wires and obstacles when loader bucket or attachment is raised. Electrocution can occur with or without contact. 18. Check for underground utilities before digging below grade level. 19. Allow for the loader length when making turns. 20. Gradually stop the loader boom when lowering or lifting. 21. Use caution when handling loose or suitable loads. 22. When servicing the loader or leaving operator's seat for any reason, always: A. Lower the loader to ground. B. Turn on Comfort Drive, if equipped C. Apply the parking brake securely D. Shut off the engine E. Turn on tractor switch so Comfort Drive Solenoid is energized. F. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. G. Return lever or levers to neutral position. H. Turn off tractor switch and remove the key. 23. Operate the loader controls only when properly sitting on the tractor seat. 24. Visually check for hydraulic leaks and broken, missing, or malfunctioning parts. Make necessary repairs before operation. 25. Escaping hydraulic fluid under pressure can have sufficient force to penetrate the skin, causing serious personal injury. Do not use HANDS to search for suspected leaks. If injured by escaping fluid, obtain medical treatment immediately. 26. Before disconnecting hydraulic lines, relieve all hydraulic pressure. 27. Do not tamper with the relief valve setting. 3
28. Never use loader for handling large heavy objects, such as large round or rectangular bales, logs, and oil drums unless loader is equipped with attachment that is designed to handle such objects. 29. Handling large heavy objects can be extremely dangerous due to: A. Danger of rolling the tractor over. B. Danger of upending the tractor. C. Danger of the object rolling or sliding down the loader boom onto the operator. 30. If you must handle large heavy objects, protect yourself by: A. Using caution, moving slowly, and avoiding bumps and rough ground. B. Never lifting the load higher than necessary to clear the ground. C. Adding rear ballast to the tractor to compensate for the load. D. Never lifting large heavy objects that may roll or fall on the operator. 31. Operate the tractor and loader such that complete control and machine stability is maintained at all times. 32. Always wear safety goggles when servicing or repairing the machine. 33. When servicing or replacing pins in cylinder ends, bucket, etc., always use a brass drift and hammer. Failure to do so could result in injury from flying metal fragments. 34. Replace damaged or illegible safety labels. See following pages for required labels. 35. Do not modify, alter, or permit anyone else to modify or alter the loader, any of its components, or any loader function without first consulting a KMW dealer. 36. Assemble, remove, and reinstall the loader only as directed in this manual. Failure to do this could result in serious personal injury or death. 37. Never tow from any point of the loader with a chain, rope, or cable. Doing so could cause a roll over or serious damage to the loader. 38. Never lift any load from any point of the loader with a chain, rope, or cable unless loader is equipped with a KMW factory approved attachment which was designed and built for this type of lifting. Always follow lifting instructions included with these attachments. 39. When a front loader is mounted on the tractor, enter and exit the operator s seat only from left side of the tractor. 40. Always park loader with a KMW attachment attached to the loader. 41. Special care should be taken to park or store attachments with points or sharp edges in a safe manner. 42. Make sure all parked loaders are on a hard level surface. Engage all safety devices to prevent loader from falling and being damaged or injuring someone. Do not repair loader if it is not mounted on the tractor. Loss of hydraulic fluid or removal of parts could cause loader to collapse resulting in injury. 43. Before starting engine, be sure all operating controls are in neutral or park lock position. 44. When using remote hydraulic tractor valves on some tractors, the loader lift and dump cylinders will continue moving unless the control lever/levers are manually returned to neutral, or until relief pressure is reached at the ends of piston strokes. Observe the bucket or attachment movement and maintain control with the lever/levers. 45. Be certain lights and safety markings as provided by the tractor manufacturer are clean and operating when transporting the tractor/loader on public roads. Be certain that the Slow Moving Vehicle (SMV) emblem is visible. Check with local law enforcement for specific requirements. 46. When using a loader be alert of bucket or attachment position at all times. Loader in raised position with bucket or attachment rolled back can dump material onto tractor causing damage or injury to tractor and/or operator. 47. The loader may shift during shipping and handling, making it unstable on the pallet. Support loader with an overhead hoist or other suitable means prior to removing bands or attaching straps securing loader to pallet. Failure to do so could result in accidental tip-over of the loader that could cause serious injury to you and/or bystanders. 48. Do not service the loader while the tractor engine is running. 49. Do not use the loader to raise the tractor in order to perform service on the tractor and/or the loader. 50. Always turn on Accumulator (Comfort Drive), lower loader/attachment to ground and relieve hydraulic pressure from system, before servicing unit. Failure to follow these instructions could result in personal injury. 51. Do not operate without confirmation that coupler pins are fully engaged. Loader attachment can fall off if not properly attached. To avoid serious injury or death: A. Only use loader manufacturer approved attachments. B. Read all operators manuals and decals before operating. Follow all safety operating, and service instructions. Contact dealer for replacement parts. 52. Never turn comfort drive on while tractor is moving. Loader movement could cause loader to lower causing attachment or material being moved to contact ground. Failure to follow these instructions could result in personal injury or property damage. DANGER: Never use the loader to lift front end of tractor off of the ground to service the unit. Failure to follow these instructions could cause personal injury or death. 4
SAFETY DECALS 5
SAFETY DECALS 0595-3062 Safety Decal Locations Important: Safety decals 0595-3084, 0595-3001, 0595-3002, 0595-3003, and 0595-3004 are located on the loader LH bearing box and are visible as you mount the tractor. Safety decal 0595-3062 is located on RH & LH Lift Cylinders. Important decal 0595-3087 is located on RH & LH center mount bracket assemblies. 0595-3051 Warning decal is Located on Quick Attach. CAUTION 0595-3062 WARNING 0595-3004 WARNING CAUTION 0595-3001 0595-3002 WARNING WARNING 0595-3003 0595-3084 Care of Safety Decals 1. Keep safety decals clean and free of obstructing material. 2. Clean safety decals with soap and water and dry with a soft cloth. 3. Replace damaged or missing safety decals with new decals from your KMW Dealer. 4. If a component with a safety decal(s) affixed is replaced with a new part, make sure new safety decal(s) are attached in the same location(s) as the replaced components. 5. Mount new safety decals by applying on a clean dry surface and pressing air bubbles to outside edges. 6
TABLE OF CONTENTS 1. INTRODUCTION...10 2. LIMITED WARRANTY STATEMENT... 11 3. ITEMS NOT COVERED UNDER WARRANTY.12 4. WARRANTY RESPONSIBILITIES...13 5. SPECIFICATIONS...14 5.1. SPECIFICATIONS OF LOADER...14 5.2. BUCKET SPECIFICATIONS...14 6. INSTALLATION INSTRUCTIONS...15 6.1. TRACTOR PREPARATION...15 6.2. INSTALLATION...17 6.3. CONNECT HYDRAULIC HOSES TO LOADER HOSE CIRCUITS...18 6.4. LOADER INSTALLATION...19 7. PRE-OPERATION INSTRUCTIONS...21 7.1. TRANSMISSION FLUID...21 7.2. INITIAL LOADER OPERATION...21 7.3. EXTERNAL LOADER AND/OR TRACTOR VALVE...21 7.4. LOADER MOUNTED CONTROL VALVE EQUIPPED WITH SINGLE LEVER CONTROL HANDLE or TRACTOR REMOTE VALVE EQUIPPED WITH SINGLE LEVER CONTROL HANDLE...21 7.5. TRACTOR REMOTE VALVE EQUIPPED WITH 2 OR 3 CONTROL HANDLES...22 7.6. NEUTRAL POSITION...22 7.7. FLOAT POSITION...22 7.8. RELIEF CARTRIDGE...22 7.9. LOAD SENSE LOADER VALVE...22 7.10. INITIAL LOADER OPERATION...22 7.11. REMOVING AIR FROM HYDRAULIC SYSTEM...23 7.12. HOSE IDENTIFICATION...23 7.13. EXTERNAL LOADER VALVE EQUIPPED WITH THIRD FUNCTION SOLENOID OPERATIONAL VALVE...23 7.14. BUCKET LEVEL INDICATOR...24 8. DAILY MAINTENANCE & LUBRICATION...25 8.1. DAILY CHECKS...25 8.2. LOADER LUBRICATION...26 8.3. QUICK ATTACH LUBRICATION...29 8.4. LINKAGE REPAIR OR REPLACEMENT INFORMATION...30 9. OPERATING INSTRUCTIONS...31 9.1. FILLING THE BUCKET...31 9.2. CARRYING THE LOAD...31 9.3. DUMPING THE BUCKET...32 9.4. LOWERING THE BUCKET...32 9.5. OPERATING WITH FLOAT CONTROL...32 9.6. LOADING FROM A BANK...32 9.7. PEELING AND SCRAPING...33 9.8. LOADING LOW TRUCKS OR SPREADERS FROM A PILE...33 9.9. BACKFILLING...33 9.10. HANDLING LARGE HEAVY OBJECTS..34 9.11. BACK GRADING...34 9.12. PROHIBITED OPERATIONS...35 9.13. BUCKET CYLINDER ROD END PRESSURE RELIEF...36 9.14. LIFT CYLINDER ROD END PRESSURE RELIEF...37 10. DISMOUNTING THE LOADER...38 11. MOUNTING THE LOADER...43 12. QUICK ATTACH INSTALLATION AND OPERATION...47 12.1. INSTALLATION INSTRUCTIONS...47 12.2. OPERATING INSTRUCTIONS...47 12.3. NON-FACTORY APPROVED ATTACHMENTS...48 12.4. QUICK ATTACH HANDLE DISENGAGED AND ENGAGED POSITIONS...49 13. INSTALLING BUCKET OR ATTACHMENT TO QUICK ATTACH...50 13.1. OPERATING INSTRUCTIONS...50 14. REMOVING BUCKET OR ATTACHMENT FROM QUICK ATTACH...53 14.1. OPERATING INSTRUCTIONS...53 15. BALE PROBE (QUICK ATTACH)...54 15.1. BALE PROBE ATTACHMENT...55 15.2. ASSEMBLY INSTRUCTIONS...55 15.3. INSTALLATION INSTRUCTIONS TO QUICK ATTACH...55 15.4. OPERATING INSTRUCTIONS...55 16. PALLET FORK (QUICK ATTACH)...56 16.1. QUICK ATTACH PALLET FORK...56 16.2. ASSEMBLY INSTRUCTIONS...56 16.3. INSTALLATION INSTRUCTIONS TO QUICK ATTACH...57 16.4. OPERATING INSTRUCTIONS...57 16.5. PARKING INSTRUCTIONS...57 17. FOUR TINE GRAPPLE (QUICK ATTACH)...58 17.1. INSTALLATION INSTRUCTIONS...58 17.2. THIRD FUNCTION QUICK COUPLERS 61 17.3. OPERATING INSTRUCTIONS...61 7
17.4. DISMOUNTING GRAPPLE FROM BUCKET...62 17.5. MOUNTING GRAPPLE TO BUCKET...63 18. THIRD FUNCTION HOSE KIT...64 18.1. INSTALLATION INSTRUCTIONS...64 19. OPTIONAL MID-MOUNT FASTER COUPLER KIT...69 19.1. OPERATION...69 19.2. CONNECTION & DISCONNECTION...69 19.3. CONNECTION PHASE...70 19.4. DISCONNECTION PHASE...70 19.5. IMPORTANT WARNINGS...71 19.6. ORDINARY MAINTENANCE...71 20. OPTIONAL COMFORT DRIVE...72 20.1. INSTRUCTIONS...72 20.2. OPERATION CHARACTERISTICS...72 20.3. OPERATION AND MAINTENANCE...73 20.4. DELIVERY...73 20.5. HANDLING...73 20.6. STORAGE...73 20.7. INSTALLATION...73 20.8. PRECAUTIONS...73 20.9. STRICTLY PROHIBITED...73 20.10. ASSEMBLY INSTRUCTIONS...74 20.11. ASSEMBLE PISTON...74 20.12. ASSEMBLE END CAP...74 20.13. ASSEMBLE CHARGING VALVE...74 20.14. NITROGEN PRE-CHARGING...74 20.15. USE OF CHARGING AND GAUGING ASSEMBLY WHEN PRE-CHARGING...75 20.16. HYDRAULIC PRESSURIZING...75 20.17. MAINTENANCE...75 20.18. COMFORT DRIVE INSTALLATION INSTRUCTIONS...76 20.19. DISASSEMBLY OF ACCUMULATOR FOR SERVICING...83 20.20. RE-ASSEMBLY OF ACCUMULATOR FOR SERVICING...83 21. OPTIONAL 2-WAY HYDRAULIC SELF LEVELING...84 21.1. OPERATING INSTRUCTIONS WHEN INSTALLED ON LOAD SENSE AND CLOSED CENTER HYDRAULIC SYSTEMS...84 21.2. OPERATING INSTRUCTIONS WHEN INSTALLED ON OPEN CENTER SYSTEMS...85 21.3. INSTALLATION INSTRUCTION FOR LOAD SENSE HYDRAULIC SYSTEMS...86 21.4. SELF LEVEL VALVE COMPONENT FUNCTION (LOAD SENSE / CLOSED CENTER SYSTEMS) (STEEL BLOCK VERSION)...91 21.5. SELF LEVEL VALVE COMPONENT FUNCTION (LOAD SENSE / CLOSED CENTER SYSTEMS) (ALUMINUM BLOCK VERSION)...92 22. CYLINDER ASSEMBLY AND DISASSEMBLY93 22.1. TILT CYLINDER ASSEMBLY...93 22.2. TILT CYLINDER DISASSEMBLY...93 22.3. LIFT CYLINDER ASSEMBLY...94 22.4. LIFT CYLINDER DISASSEMBLY...94 23. LEAK DOWN INSPECTION...95 23.1. FRONT END LOADER FIELD LEAK DOWN INSPECTION AND TEST...95 23.2. LEAKAGE TEST FOR LIFT CYLINDER SEALS (Open Center Systems)...96 23.3. LEAKAGE TEST FOR LIFT CIRCUIT LOADER VALVE SPOOL...98 23.4. LEAKAGE TEST FOR TILT OR BUCKET CYLINDER, SEALS...98 23.5. TILT OR BUCKET CYLINDER VALVE SPOOL LEAKAGE...99 23.6. ACCEPTABLE LIFT CYLINDER LEAK DOWN RATES...100 23.7. ACCEPTABLE TILT OR BUCKET CYLINDER LEAK DOWN RATES...100 24. TROUBLE SHOOTING PROCEDURES...101 24.1. TROUBLE SHOOTING FOR ALL LOADERS...101 24.2. TROUBLE SHOOTING OPTIONAL LOADER VALVE...104 24.3. TROUBLE SHOOTING OPTIONAL COMFORT DRIVE...105 24.4. TROUBLE SHOOTING OPTIONAL SELF LEVELING...105 25. TORQUE CHART...107 26. NOTES...108 27. PARTS MANUAL...109 28. DECALS & MANUALS...110 29. BOOM ASSEMBLY...113 30. HYDRAULIC CYLINDERS, HOSES, AND TUBELINES...117 31. LIFT CYLINDER, LH...119 32. LIFT CYLINDER, RH...120 33. TILT CYLINDER...121 34. ACCUMULATOR...122 35. MID MOUNT COUPLER KIT...123 36. LOADER VALVE 2 SPOOL (Load Sense)...125 37. LOADER VALVE 3 SPOOL (Load Sense)...127 38. JOYSTICK CONTROLLER...129 8
39. WIRING HARNESS...130 40. EURO-STYLE QUICK ATTACH...131 41. BUCKET STANDARD...133 42. BUCKET HIGH CAPACITY...134 43. BALE PROBE...135 44. GRAPPLE CYLINDER...136 45. PALLET FORK...137 46. GRAPPLE ASSEMBLY...139 47. GRAPPLE HYDRAULICS...141 48. ACCUMULATOR...143 49. 3 rd FUNCTION HOSE KIT...145 50. BUCKET LEVEL INDICATOR...147 9
1. INTRODUCTION This manual provides safety, set-up, operation, maintenance, removing, storing, and reinstalling instructions for your new mid-mount loader. Your loader has been designed to give many years of satisfactory service. Successful operation and long life of the loader depends, of course, on proper operation and care. Please read this manual carefully and follow the instructions. Correct operation and maintenance will save much time and expense. OBSERVE and follow all CAUTION, WARNING, and DANGER instructions to help prevent personal injury and damage to the loader. The reference to left hand and right hand used in this manual refers to the position when standing at the rear of the unit and facing forward. If, at any time, you have a service problem with your loader or need new parts, contact your local KMW dealer. Your dealer will need the loader model number and serial number to give you prompt, efficient service. The serial number plate is located on the inside plate of the left hand bearing box. MODEL NUMBER SERIAL NUMBER DATE OF PURCHASE NAME OF DEALER KMW LOADER 10
2. LIMITED WARRANTY STATEMENT KMW Ltd., herein referred to as KMW, warrants each new KMW product to be free from defects in material and workmanship. This warranty is applicable only for the normal service life expectancy of the product, not to exceed 12 consecutive months for all hydraulic components and loader attachments and 24 consecutive months on all other loader components from the date of delivery of the new KMW product to the original purchaser. Genuine KMW replacement parts and components will be warranted for 90 days from date of purchase, or the remainder of the original equipment warranty period, whichever is longer. Under no circumstances will it cover any merchandise or components thereof, which, in the opinion of the company, has been subjected to misuse, unauthorized modifications, alteration, an accident or if repairs have been made with parts other than those obtained through KMW. Additionally, the warranty shall only be effective if the owner/dealer responsibilities contained herein are adhered to. The company in no way warrants tractors, engines, batteries, tires or other trade accessories since these items may be warranted separately by their respective manufacturer and are not manufactured by KMW. Our obligation under this warranty shall be limited to repairing or replacing, free of charge to the original purchaser, any part that, in our judgement, shall show evidence of such defect, provided further that such part shall be returned within thirty (30) days from date of failure to KMW routed through the dealer from whom the purchase was made, transportation charges prepaid and the other conditions hereof are complied with. This warranty shall not be interpreted to render KMW liable for injuries or damages of any kind or nature to person or property. This warranty does not extend to the loss of crops, loss because of delay in harvesting, or any expense or loss incurred for labor, substitute machinery, rental or for any other reason. Except as set forth herein, KMW shall have no obligation or liability of any kind on account of any of its equipment and shall not be liable for special or consequential damages. KMW makes no other warranty, expressed or implied, and, specifically, KMW disclaims any implied warranty or merchantability or fitness for a particular purpose. Some states or provinces do not permit limitation or exclusions of implied warranties or incidental or consequential damages, so the limitations or exclusion in this warranty may not apply in those areas only. This warranty is subject to any existing conditions of supply, which may directly affect our ability to obtain materials or manufacture replacement parts. KMW reserves the right to make improvements in design or changes in specifications at any time, without incurring any obligation to owners of units previously sold. No one is authorized to alter, modify or enlarge this warranty nor the exclusion, limitations and reservations. Other restrictions, conditions and responsibilities with respect to the warranty are set forth in the following pages and are fully applicable to the warranty herein provided. 11
3. ITEMS NOT COVERED UNDER WARRANTY This warranty only covers those items listed on warranty statement and does not include, among other things, the following: 1. Loaders that warranty registration has not been completed and returned within 10 days of retail sale. 2. Travel time, mileage, meals and lodging. 3. Overtime premiums. 4. Labor time for phone, fax or other consultation between dealers, sales or service management personnel, operators, owners, etc. 5. Replacement of hydraulic oil or steam cleaning product after oil leaks. 6. Any problems related to the mechanical or physical failure of the tractor. 7. Reimbursement for rental units while repairing warranty items. 8. Normal installation and/or pre-delivery procedures, including mounting, lubricating, tightening bolts, fittings, hoses and clamps and maintaining oil levels. 9. Dealer rework due to faulty repair or installation. 10. Bent bucket cylinder rods. 11. Valve spool sticking or leakage caused by contaminated oil. 12. Hydraulic cylinder head cap damage caused by external forces applied to end of cylinder head. 13. Damage or malfunctions resulting from natural calamity, theft, accident, vandalism, abuse due to misapplication, improper site conditions, incorrect maintenance, negligence, unauthorized modifications and/or alterations. 14. Normal maintenance items such as: adjustments, oil changes, lubricating and tightening of bolts, fittings, hoses, and clamps. 15. Parts that engage or contact the working material or normal wearing parts, such as bucket teeth and blade cutting edges. 16. Repair by other than an authorized dealer of the distributor. 17. Switching mounts from one prime mover to another. 18. Exceeding the maximum hydraulic pressure setting from the factory. 19. Alterations or modifications made without express written consent by the distributor or manufacturer. 20. Use of non-factory attachments and parts, attachments and parts made up or purchased from sources other than distributor or manufacturer. 21. Shipping costs other than normal ground transportation. 22. Warranty work completed after 30 days from failure. 23. Claims submitted after 15 days from repair. 24. Claims made under fraudulent situations. 12
4. WARRANTY RESPONSIBILITIES The warranties provided herein shall only apply when: Owner Responsibilities 1. Following safety procedures and guidelines as described in the Operator's Manual. 2. Performing all normal and preventive maintenance. 3. Lubrication of machine as specified in operator s manual. 4. Keeping all bolts torqued to specifications. 5. Keeping all safety equipment installed and in working condition. 6. Keeping all filters clean. 7. Repairing all minor hydraulic leaks, such as loose hoses and fittings. 8. Replacing any decals that may be damaged or illegible. 9. Operating the unit only in a safe manner. 10. Using qualified operators who have read and thoroughly understand the operator s and safety manuals. 11. Operating within unit design specifications. 12. Reporting all accidents to the distributor. 13
5.1. SPECIFICATIONS OF LOADER 5. SPECIFICATIONS MODEL 1860 140 HP to 255 HP Tractors D E J A B C MODEL 1860 A. Maximum Lift Height to Pivot Pin... 15 (180") B. Maximum Lift Height under Level Bucket...14' 1" (170") C. Clearance with Bucket Fully Dumped...12 7.5 (147.5") D. Reach at Maximum Lift Height... 2 (24 ) E. Maximum Dump Angle...40 degrees F. Reach with Bucket on Ground...8 7.5 (103.5") G. Maximum Rollback Angle...32 degrees H. Digging Depth... 3 J. Overall Height in Carry Position... U. Lift Capacity to Maximum Height at Pivot Pin without Self Leveling...6400# U. Lift Capacity to Maximum Height at Pivot Pin with Hydraulic Self Leveling...6400# V. Lift Capacity to Maximum Height 31.5" Forward of Pivot Pin without Self Leveling...4975# V. Lift Capacity to Maximum Height 31.5" Forward of Pivot Pin with Hydraulic Self Leveling...4550# W. Lift Capacity to 59" Height at Pivot Pin...8130# X. Lift Capacity to 59" Height 31.5" Forward of Pivot Pin...6786# Y. Breakout Force at Ground Line at Pivot Pin...9450# Z. Breakout Force at Ground Line 31.5" Forward of Pivot Pin...7200# VV. Rollback Force at Maximum Height 31.5" Forward of Pivot Pin without Self Leveling...5680# VV. Rollback Force at Maximum Height 31.5" Forward of Pivot Pin with Hydraulic Self Leveling...5400# XX. Rollback Force at 59" Lift Height 31.5" Forward of Pivot Pin...9500# ZZ. Rollback Force at Ground Line 31.5" Forward of Pivot Pin...6664# PSI... 2950 psi Lift Cylinder Diameter...3.50" x 2.75 Rod Tilt Cylinder Diameter...3.25" x 1.75 Rod Specifications taken with 84" Standard Bucket. Specifications based on ASAE standards S301.3 and furnished for general information only as they can vary with different tractor models. Specifications are subject to change without notice and without liability therefore. F H G 5.2. BUCKET SPECIFICATIONS STRUCK CAPACITY RATED CAPACITY 84 Standard Capacity Bucket....75 cu. yd....97 cu. yd. 96 Standard Capacity Bucket....87 cu. yd....1.12 cu. yd. 102 Standard Capacity Bucket....92 cu. yd....1.18 cu. yd. 84 High Capacity Bucket....84 cu. yd....1.09 cu. yd. 96 High Capacity Bucket... 1.05 cu. yd....1.33 cu. yd. 102 High Capacity Bucket...1.11 cu. yd....1.41 cu. yd. 14
6. INSTALLATION INSTRUCTIONS CAUTION: Equip your tractor with a ROPS cab or frame for your protection. See your tractor/rops Operator Manual for correct seat belt usage. Read entire instructions before beginning to install the loader. Personal injury and machine damage may be prevented if you read and understand these instructions and special safety messages. When you are in the tractor seat looking forward, the right and left hand sides of the tractor and loader are the same as your right and left hand. 6.1. TRACTOR PREPARATION 6.1.1. Tractor Front Tires Use front tires of equal size and maintain equal pressure in each tire. The pressure of the front tractor tires must be increased to the maximum approved pressure recommended by the tire manufacturer to compensate for additional load placed on the tires with the Front End Loader. See your tractor Operator Manual. Adjust the front tires to the widest recommended setting on adjustable models for maximum stability. Front end weights must NOT be used while loader is on the tractor. Pay particular attention to minimum tread settings information in Installation Instructions included with your Mounting Kit. 6.1.2. Tractor Rear Tires Maintain equal pressure in each of the rear tires. Use the widest recommended rear wheel setting for maximum stability. 15
6.1.3. Recommended Rear Tractor Ballast CAUTION: To help prevent rollover, use recommended rear tractor ballast and widest wheel settings to maximize stability. See your tractor Operator Manual and information on the following ballast. Rear tractor ballast is required after installation of loader on the tractor. Following is recommended ways to ballast your tractor. Install factory rear wheel weights to tractor. Install a calcium solution in rear tractor tires. Install a weight box to tractor 3-point see optional attachments section in this manual. Install some type of 3-point attachment to tractor. Install a backhoe to the tractor. NOTE: You may need to use one or a combination of the above rear ballast methods depending on your tractor and loader application. To check if your tractor is properly ballasted you should conduct the following rear axle weight check. With 1800# installed in 72 bucket, 1900# in 78 bucket or 2100# in 84 bucket. With operator in tractor. With bucket/loader pivot pin positioned as shown in fig. 1. With ballast installed on rear of tractor. Weigh total vehicle weight. Weigh rear axle of tractor. Tractor rear axle must weigh a minimum of 25% of total weight of unit. Example: If total weight of unit = 10,000#, rear axle weight needs to be 2,500# or greater. Ballast Installed With weight above installed in your Bucket with Bucket Pivot level with Boom Pivot Bucket Pivot Boom Pivot Level 12 Fig. 1 Rear Axle should weigh a minimum of 25% of total tractor weight CAUTION: To allow proper steering of the tractor always remove 3-point weight from tractor when the loader is parked from the tractor. Never operate the unit with the loader parked and the backhoe installed. Failure to follow these instructions could cause loss of tractor steering causing personal injury and damage to property. Front tractor weights must only be used when the loader is parked. Weights must be removed before remounting loader or serious damage will occur to loader or tractor front axle due to excessive weight. The use of adequate rear counterweight to counterbalance for maximum loader capacity is required for safe loader operation. Weight added to the rear of the tractor provides better traction and easier, more efficient loader operation. IMPORTANT: Do not exceed the maximum load capacity of the tires on your tractor. See Tire and Wheel Specifications in tractor Operator Manual for more information. NOTE: Rear tractor ballast must be added equally to tractor to allow loader bucket to set parallel to the ground. After installation, check that the tire pressure is equal and the center of rear axle off of ground is equal from right to left side of tractor. This inspection must be completed on a hard level surface. 16
6.2. INSTALLATION WARNING: To avoid serious injury or death: Read before cutting bands or removing attaching straps. The loader may shift during shipping and handling, making it unstable on the pallet. Support loader with an overhead hoist or other suitable means prior to removing bands or attaching straps securing loader to pallet. Failure to do so could result in accidental tip-over of the loader that could cause serious injury to you and/or bystanders. 6.2.1. All Loader Models: Position the tractor on a hard level surface. IMPORTANT NOTICE This loader has both standard and metric fasteners. Verify that the proper fasteners are placed in the correct locations. Do not tighten any bolts firmly until all components are attached onto the tractor. 6.2.2. All Loader Models: Install mounting brackets on tractor as shown in Installation Instructions included with your Mounting Kit. Model 1860 X = 46 6.2.3. All Loader Models: Tighten all bolts equally during installation so that outside surface of brackets are level and the center line measurement from right hand to left hand mounting brackets reads plus or minus 1/4" as shown at right. IMPORTANT: To prevent mounting kit hardware from loosening during operation always torque mounting kit hardware to specified torque noted in Loader Operator Manual. 6.2.4. All Loader Models: Remove all loader components from shipping packaging. CAUTION: Lift and support all loader components safely. 6.2.5. All Loader Models: Install orifice fitting into loader tilt cylinder rod end (identified with Red Tie) if not previously installed at Factory. (1) Orifice Fitting 10 Fitting Straight Special 11 (1860 Loader) Orifice 0.098" 12 Fitting Straight JICF 3/4" x ORBM 3/4" 13 Fitting Assembly 14 Connect this end to loader hose from loader Frame. 15 Orifice Oil Flow Direction. 16 Free Flow Oil Direction IMPORTANT: When installing orifice fitting in system, the free flow oil direction is towards loader and orificed oil flow is towards valve or tractor remote. When orifice fitting is installed in system correctly, cavitation of attachment cylinder will be reduced thus reducing free movement of bucket or attachment, which could be caused by cylinder cavitation. NOTE: When equipping loader with Hydraulic Self Leveling this orifice fitting must be moved to the location specified in Hydraulic Self Level Installation Instructions. 17
6.3. CONNECT HYDRAULIC HOSES TO LOADER HOSE CIRCUITS 6.3.1. Install color ties to both ends of remote and/or valve hoses to be connected to loader hoses, matching colors on each end. 6.3.2. Install hose protector over these hoses. 6.3.3. Connect these hoses to loader hoses matching color ties then tighten these fittings. Loader Hose Protector Loader Hoses Mark both ends of Hoses using Color Ties before Installation Install Remote and/or Valve Hoses Install Hose Protector NOTE: Different Hydraulic Kit Options use different hose lengths, etc. See instructions provided in your hydraulic kit for further instructions. Loader Hose Protectors Additional Hose Protectors 6.3.4. Pull loader hose protectors over hose connections. 6.3.5. Pull loader remote and/or valve hose protectors up over hose connections to boom frame. Locate these hose protectors so 3" to 4" are inside boom arm. CRITICAL: Hoses must be double wrapped in area of boom frame to prevent hose damage. Install and locate Hose Protectors 3 to 4 inside Boom Arm Secure using Nylon Tie This area must have Double Wrap of Hose Protectors Boom Arm 6.3.6. Position and secure hoses so hoses do not contact any loader components during loader operation. CRITICAL: Hoses must be positioned so no hoses contact any loader components during operation. Hoses or fittings in Self Level Block may need to be rotated to ensure hoses do not contact any loader components during operation. 18
6.3.7. Secure loader remote and/or valve hose protector using nylon tie at each end. Secure this end of Hose Protector using Nylon Tie 6.4. LOADER INSTALLATION 6.4.1. Before installing loader to tractor, install quick attach to loader if Factory has not pre-installed it. 6.4.2. Secure quick attach to loader with 1.25 x 7.54 pins, 4 places. Secure each pin using carriage bolt, hardened flatwasher, and stover locknut. Quick Attach Flatwasher 3/8" Hardened, 4 places. Stover Locknut 3/8"- 16NC, 4 places. Carriage Bolt 3/8"- 16NC x 1-1/2" Grade 5, 4 places. Pin 1.25" x 7.54", 4 places. CAUTION: Lift and support all loader components safely. IMPORTANT: Do not extend tilt cylinders without quick attach pinned to loader. Failure to follow these instructions could cause loader damage and void warranty. 6.4.3. All Loader Models: Before installing loader to tractor, use a hoist to install quick attach bucket on loader quick attach. See Quick Attach Operation Instructions Section starting on page 47. 6.4.4. All Loader Models: Following these instructions will add stability to loader package and will allow easier handling of loader with hoist. 6.4.5. All Loader Models: Verify that all mounting kit hardware has been torqued as specified before installing loader. A. Identify hardware size and grade. B. Refer to Torque Chart, page 107 and find correct torque for your hardware size and grade. C. Torque hardware to this specification unless otherwise specified. IMPORTANT NOTE: To prevent mounting kit hardware from loosening during loader operation always torque mounting kit hardware to specified torque. 6.4.6. All Loader Models: Support the loader by using a hoist. Refer to Section 11 Mounting the Loader, starting on page 43. Install loader to mounting brackets previously installed on tractor. 19
6.4.7. All Loader Models: Quick connect loader hoses to hydraulic circuit of tractor previously installed per instructions with Hydraulic Kit installed. 6.4.8. Photo "A" shows loader hoses connected to Optional Mid-Mount Coupler Kit. Color Ties Loader Hoses Connect Circuits Remote/Valve Hoses Color Ties { Photo "A" 6.4.9. Photo "B" shows loader hoses connected to Optional Mid-Mount Faster Coupler Kit. Photo "B" 20
7.1. TRANSMISSION FLUID Check the tractor hydraulic fluid level and fill, if required. 7. PRE-OPERATION INSTRUCTIONS 7.2. INITIAL LOADER OPERATION NOTE: Keep engine speed at low idle during the initial loader operation. CAUTION: Escaping hydraulic fluid under pressure can have sufficient force to penetrate skin, causing serious personal injury. Before disconnecting lines, be sure to relieve all pressure. Before applying pressure to system, be sure all connections are tight and that lines, tubes, and hoses are not damaged. Fluid escaping from a very small hole can be almost invisible. Use a piece of cardboard or wood, rather than hands, to search for suspected leaks. If injured by escaping fluid, see a doctor at once. Serious infection or reaction can develop if proper medical treatment is not administered immediately. (1) Hydraulic line. (2) Cardboard. (3) Magnifying glass. 7.3. EXTERNAL LOADER AND/OR TRACTOR VALVE CAUTION: When properly installed, the tractor remote valve or external valve control lever/levers will control the loader hydraulic circuits as described on page 21, 22 and 23. Refer to tractor Operator Manual for further explanation of tractor remote control lever/levers. IMPORTANT: Contaminants in hydraulic fluid can cause valve spools to stick. BE ALERT when operating loader and follow your tractor Operator Manual hydraulic fluid maintenance schedule. 7.4. LOADER MOUNTED CONTROL VALVE EQUIPPED WITH SINGLE LEVER CONTROL HANDLE or TRACTOR REMOTE VALVE EQUIPPED WITH SINGLE LEVER CONTROL HANDLE 7.4.1. If your loader utilizes a loader mounted control valve equipped with single lever control handle or tractor remote valve equipped with single lever control handle, it will function as described at right. Number 1 Position: Pull the joystick back to raise loader. Number 2 Position: Push the joystick forward to lower loader. Number 3 Position: Push the joystick full forward to activate float position. Number 4 Position: Push the joystick outward to dump attachment. Number 5 Position: Pull the joystick inward to roll back attachment. 21
7.5. TRACTOR REMOTE VALVE EQUIPPED WITH 2 OR 3 CONTROL HANDLES 7.5.1. Tractor remote valve equipped with 2 or 3 control handles will function as described at right. 7.6. NEUTRAL POSITION The loader external valve provided by KMW has a neutral position which prevents movement of the loader or attachment. When the control handle is manually released from the work position, the valve spool will return to the neutral position. 7.7. FLOAT POSITION 7.7.1. The loader external valve provided by KMW has a float position incorporated into the lift cylinder circuit which allows the loader to float. This float feature is important for satisfactory operation when scraping, sweeping, leveling, or any job where it is necessary to follow the contour of the surface. To activate the float position, lower the bucket or attachment and push the control handle all the way forward into detent. The valve will stay in float detent position until the operator manually pulls the control handle out of detent position to deactivate float. IMPORTANT: If the bucket or attachment does not operate as indicated on the directional decal, lower the bucket to the ground, stop the engine, and relieve all hydraulic pressure. Recheck hydraulic circuit hookup to loader valve and correct. 7.8. RELIEF CARTRIDGE CAUTION: If your KMW valve is equipped with a relief cartridge, do not tamper with the relief valve setting. The relief valve is pre-set at the factory. Changing the setting can cause overloading of the loader and tractor, which may result in serious injury. 7.9. LOAD SENSE LOADER VALVE IMPORTANT NOTE: If your loader is equipped with a load sense type control valve it may demonstrate the following operation characteristic. To raise the boom while finely feathering the control lever may allow the boom to lower very slowly, move the control lever far enough that the boom raises IMPORTANT: Engage plus handle lever lock in locked position when tractor/loader is being driven on long distances and the loader does not need to be moved. Always engage this lock when dismounting the tractor. 7.10. INITIAL LOADER OPERATION Before operating the loader, fully raise and lower the boom two or three times. Then raise the loader bucket approximately four (4) feet above the ground and cycle the bucket cylinders two or three times. Lower the bucket or attachment to the ground. Check the tractor hydraulic fluid level and fill as required. Refer to the tractor Operator Manual for the proper hydraulic fluid and the correct hydraulic fluid level. CAUTION: When servicing the loader or leaving operator's seat for any reason, always: Lower the loader to ground. Turn on Comfort Drive, if equipped Apply the parking brake securely Shut off the engine Turn on tractor switch so Comfort Drive Solenoid is energized. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. Return lever or levers to neutral position. Turn off tractor switch and remove the key. 22
IMPORTANT: Always keep the cylinders in a retracted position when the loader is not in use to guard against rust and contamination which may cause damage to the cylinder rods and hydraulic system. 7.11. REMOVING AIR FROM HYDRAULIC SYSTEM Repeat raising and lowering the loader boom and bucket operations until all the air is removed from the system and the system responds properly. 7.12. HOSE IDENTIFICATION Check if loader functions as shown and described on pages 21, 22 and 23. Then install colored nylon ties, one color per each circuit. Locate nylon ties so one is attached to male side of quick coupler and one is attached to female side of quick coupler. This will allow easy identification of loader circuits when mounting and dismounting loader. 7.13. EXTERNAL LOADER VALVE EQUIPPED WITH THIRD FUNCTION SOLENOID OPERATIONAL VALVE IMPORTANT NOTE: If your loader is equipped with a load sense type control valve it may demonstrate the following operation characteristic. To raise the boom while finely feathering the control lever may allow the boom to lower very slowly, move the control lever far enough that the boom raises. 7.13.1. Only activate one plus handle switch at a time. 7.13.2. 3rd spool valve should only be hooked to a loader 3rd function attachment such as a grapple fork. This valve spool is direct acting. The operator has no feathering control when operating this spool. 7.13.3. This valve is equipped with manual spool push points on each end of the 3rd function valve. The valve can be manually operated by pushing in on these push points. This feature will help you trouble shoot this section if it is necessary. Refer to Installation Instructions included with your Third Function External Valve Kit for detailed information. Refer to decal above. 7.13.4. When properly connected, the 3rd function valve should operate the grapple as follows. If not, switch 3rd function hoses around and try again. Refer to decals and illustration on this page. (1) Press the number 1 left hand plus handle switch to open the grapple. (2) Press the number 2 right hand plus handle switch to close the grapple. NOTE: If using the solenoid operated function for something other than KMW 4-Tine Grapple, orifice plate may need to be installed in your attachment to reduce speed of attachment and allow solenoid section of valve to function. 23
7.14. BUCKET LEVEL INDICATOR Paint or mark end of BLI Rod Hex Bolt 5/16" x 1/2" Grade 5, 5/16" Lockwasher, and 5/16" Flatwasher Bucket Level Indicator Tube Assembly 7.14.1. Install bucket level indicator rod assembly into bucket level indicator tube assembly. 7.14.2. Attach bucket level indicator tube assembly to base end of RH tilt cylinder using 5/16 x 1/2" hardware. 7.14.3. Attach bucket level indicator rod assembly to rod end RH tilt cylinder using 5/16" x 1-3/4" hardware. 7.14.4. Adjust bucket level tube for proper alignment with bucket level rod by sliding slotted bracket to desired position and tightening bolt. Bucket Level Indicator Rod Assembly Hex Bolt 5/16" x 1-3/4" Grade 5, 5/16" Lockwasher, and Flatwasher 7.14.5. After installing loader on tractor, position loader on ground with bucket flat, then paint or mark end of bucket level indicator rod so operator can identify when bucket is level on ground. 24
8.1. DAILY CHECKS 8. DAILY MAINTENANCE & LUBRICATION 8.1.1. All Loader Models: Check all hardware daily before operation. Tighten hardware to torque values as specified in the Torque Chart, page 107 unless otherwise specified. IMPORTANT NOTE: To prevent mounting kit hardware from loosening during operation always torque mounting kit hardware to specified torque noted in Loader Operator Manual. 8.1.2. All Loader Models: With the engine off and the bucket on the ground, inspect all hoses for cuts or wear. Check for signs of leaks and make sure all fittings are tight. CAUTION: Escaping hydraulic fluid under pressure can have sufficient force to penetrate skin, causing serious personal injury. Before disconnecting lines, be sure to relieve all pressure. Before applying pressure to system, be sure all connections are tight and that lines, tubes, and hoses are not damaged. Fluid escaping from a very small hole can be almost invisible. Use a piece of cardboard or wood, rather than hands, to search for suspected leaks. If injured by escaping fluid, see a doctor at once. Serious infection or reaction can develop if proper medical treatment is not administered immediately. (1) Hydraulic line. (2) Cardboard. (3) Magnifying glass. Service your loader at the intervals and locations as specified. When you service your loader, use only high quality lubricants. The engine hour meter on the tractor shows the amount of hours the engine has worked. Use the hour meter to service your loader at the correct time periods. CAUTION: When servicing the loader or leaving operator's seat for any reason, always: Lower the loader to ground. Turn on Comfort Drive, if equipped Apply the parking brake securely Shut off the engine Turn on tractor switch so Comfort Drive Solenoid is energized. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. Return lever or levers to neutral position. Turn off tractor switch and remove the key. Check the tractor hydraulic fluid level as specified in the tractor Operator Manual. NOTE: When checking hydraulic system fluid level, the loader boom must be on the ground with the bucket or attachment resting flat on a level surface. 25
8.2. LOADER LUBRICATION 8.2.1. Model 1860 Loader: Position bucket and/or attachment level with ground, lower loader boom to ground, and relieve all hydraulic pressure before lubricating. 8.2.2. Model 1860 Loader: There are 20 grease fittings on this loader. Lubricate pivots as specified. (1) Lubricate these 14 pivot points every 5 hours of operation. (2) Lubricate these 6 grease fittings, 3 on each pivot every 5 hours of operation. 1 2 1 1 1 CAUTION: Do not stand, walk, or work under a raised loader or attachment unless it is securely blocked or held in position. Accidental movement of a control lever/levers or leaks in the hydraulic system could cause the loader to drop, or attachment to dump, causing severe injury. 8.2.3. All Model Loaders: After every 10 hours of loader operation, check that all pin boss hardware, washers, and nuts are secure. 2 2 1 2 1 Position 1 Hardware Hex Bolt 7/16-14 x 2.5" Grade 8, 4 places. Stover Lock Nut 7/16-14, 4 places. Flatwasher 3/8" Hardened, 4 places. Stover Lock Nut 3/8"-16NC, 4 places. Carriage Bolt 3/8"-16NC x 1-1/2" Grade 5, 4 places. Position 2 Hardware 26
8.2.4. All Model Loaders: To keep mounting kit hardware from loosening during operation, periodically check that all loader mounting kit hardware is torqued to specification noted in Torque Chart, page 107. (1) NOTE: Check all mounting kit hardware torque after initial loader operation and then after every 25 hours of loader operation. (Refer to mounting kit instructions for exact quantity and placement of hardware) 8.2.5. All Loader Models: During initial setup and as required apply a small amount of grease to each loader bracket in area of top receiver and guide. This will aid in parking loader. 2 2 (2) To aid in mounting and dismounting loader, apply small amount of grease to these areas. 2 2 8.2.6. All Model Loaders: Before servicing your tractor, always do one of the following. CAUTION: Do not stand, walk, or work under a raised loader or attachment unless it is securely blocked or held in position. Accidental movement of a control lever/levers or leaks in the hydraulic system could cause the loader to drop, or attachment to dump, causing severe injury. (1) Park the loader off of the tractor. (2) Position loader bucket against dump stops, then lower to ground and relieve all hydraulic pressure. 27
8.2.7. All Model Loaders: To prevent attachment cylinder damage, always keep top of front loader arms and area between attaching plates free of all debris such as rocks or material that can become hard when dried or frozen. (1) Keep This Area Clean Top of front loader arms. (2) Keep This Area Clean Between attaching plates. (1) Keep Clean (2) Keep Clean 8.2.8. Check mounting kit hardware as specified below. IMPORTANT: To keep mounting kit hardware from loosening during loader operation, hardware must be torqued to specifications noted in operator manual. 28
8.3. QUICK ATTACH LUBRICATION IMPORTANT: To maintain your quick attach functioning properly, always inspect quick attach components for damage. If damage exists, replace component immediately. IMPORTANT: To maintain your quick attach functioning properly, always keep quick attach, quick attach linkages, and pin areas clean. 8.3.1. Your quick attach handle springs and pin areas have been pre-lubricated and sealed at the factory. 8.3.2. Service If Handle Pin Sticking Occurs: Remove spring cover plates, lubricate spring and pin areas, reinstall cover plates, and seal plates using a 1/4" bead of Sika-Flex sealant. Spring cover plate, one each side. Pin Area, one each side. 8.3.3. Service Annually: Remove spring cover plates, lubricate spring and pin areas, reinstall cover plates, and seal plates using a 1/4" bead of Sika-Flex sealant. Grease pin area as required to allow proper operation of quick attach Grease Spring as shown 8.3.4. Model 1860 Loader has replaceable steel bushings in locations shown. (3) Replaceable bushings located in these pivots. 3 3 29
8.4. LINKAGE REPAIR OR REPLACEMENT INFORMATION 8.4.1. If for any reason you need to disassemble linkage for service, make sure you reassemble link as shown in illustration. Link Rollback Stop 14 Dump Stop 11.57 30
9. OPERATING INSTRUCTIONS The loader should be operated with the tractor engine running from 1700 to 2200 rpm. Excessive speeds are dangerous, and may cause bucket spillage and unnecessary strain on the tractor and loader. When operating in temperatures below 30 o F, run the tractor engine below 1200 rpm until the hydraulic fluid temperature exceeds 30 o F. The following text and illustrations offer suggested loader and tractor operating techniques. IMPORTANT: If your loader is equipped with Optional Hydraulic Self Leveling refer to following operating instructions along with operating instructions in Optional Hydraulic Self Leveling section in this manual. 9.1. FILLING THE BUCKET Approach and enter the pile with a level bucket. Then rollback and lift the bucket. The rollback and lifting of the bucket will increase efficiency because a level bucket throughout the lifting cycle resists bucket lift and increases breakaway effort. NOTE: Do not be concerned if the bucket is not completely filled during each pass. Maximum productivity is determined by the amount of material loaded in a given period of time. Time is lost if two or more attempts are made to fill the bucket on each pass. LIFTING THE LOAD When lifting the load, keep the bucket positioned to avoid spillage. CAUTION: Do not attempt to lift bucket or attachment loads in excess of the loader capacity. 9.2. CARRYING THE LOAD Position the loader in a low position when transporting a loaded or empty bucket or attachment. Use extreme care when operating the loader on a slope. Keep the bucket as low as possible. This keeps the bucket and tractor center of gravity low and will provide maximum tractor stability. CAUTION: Operating the loader on a hillside is dangerous and is not recommended. When transporting a load, keep the bucket as low as possible to avoid tipping, in case a wheel drops in a rut. 31
9.3. DUMPING THE BUCKET Lift the bucket just high enough to clear the side of the vehicle. Move the tractor in as close to the side of the vehicle as possible, then dump the bucket. 9.4. LOWERING THE BUCKET After the bucket is dumped, back away from the vehicle while lowering and rolling back the bucket. 9.5. OPERATING WITH FLOAT CONTROL During operation on hard surface, keep the bucket level and position the lift control in the float position to permit the bucket to float on the work surface.if hydraulic down pressure is exerted on the bucket, the cutting edge will wear faster than normal. The float position will also avoid mixing of surface material with stockpile material. The float position will reduce the chance of surface gouging while removing snow or other material, or when working with a blade. NOTE: Float will not function on loaders installed on Open-Center hydraulic system with Hydraulic Self-Leveling option installed. 9.6. LOADING FROM A BANK Choose a forward gear that provides a safe ground speed and power for loading. CAUTION: Exercise caution when undercutting high banks. Dirt slides can be dangerous. Load from as low as possible for maximum efficiency. Loader lift and breakaway capacity diminish as loading height is increased. Side cutting is a good technique for cutting down a big pile. If the pile sides are too high and liable to cause cave-in, use the loader to break down the sides until a slot can be cut over the top. Another method for large dirt piles is to build a ramp approach to the pile. It is important to keep the bucket level when approaching a bank or pile. This will help avoid gouging the work area. 32
9.7. PEELING AND SCRAPING Use a slight bucket down angle, travel forward, and hold the lift control forward to start the cut. Make a short cut and breakout cleanly. With the bucket level, start a cut at the notch approximately 2 in. deep. Hold the depth by feathering the tilt control to adjust the cutting edge up or down. When the front tires enter the notch, adjust the lift cylinder to maintain proper depth. Make additional passes until the desired depth is reached. During each pass, use only the tilt control while at working depth. This will allow you to concentrate on controlling the bucket angle to maintain a precise cut. NOTE: See page 36 and 37 for information on how loader will operate if circuit reliefs activate during operation. 9.8. LOADING LOW TRUCKS OR SPREADERS FROM A PILE For faster loading, minimize the angle of turn and length of run between pile and spreader. Back grade occasionally with a loaded bucket to keep the work surface free of ruts and holes. Also, hold the lift control forward so the full weight of the bucket is scraping the ground. Use the heel of the bucket. 9.9. BACKFILLING Approach the pile with the bucket flat. Poor operating methods actually move no more dirt and make it more difficult to hold a level grade. Do not use the bucket in the dumped position for bulldozing. This method will impose severe shock loading on the dumplinkage, the tilt cylinders, and the tractor. Leave dirt in the bucket because dumping on each pass wastes time. Operate at right angles to the ditch, taking as big a bite as the tractor can handle. 33
Leave dirt that drifts over the side of the bucket for final clean up. Pile dirt on the high side for easier backfilling on a slope. 9.10. HANDLING LARGE HEAVY OBJECTS CAUTION: Handling large heavy objects can be extremely dangerous due to: Danger of rolling the tractor over. Danger of upending the tractor. Danger of object rolling or sliding down the loader boom onto the operator. CAUTION: If you must perform the above work, protect yourself by: Never lifting the load higher than necessary to clear the ground when moving. Adding rear ballast to the tractor to compensate for the load. Never lifting large objects with equipment that does not have an anti-rollback device. Moving slowly and carefully; avoiding rough terrain. 9.11. BACK GRADING When back grading, the angle between the bottom of the bucket and the ground must not be more than 15 degrees. Failure to follow these instructions could cause loader tilt cylinders to fail and void warranty. Never use bucket or other attachment in position shown to push or doze material. This will cause excessive pressure in bucket cylinder and will cause failure to your loader, which is not covered under warranty. NOTE: Never dump bucket over with grapple open and use grapple as a ripper. This will cause excessive pressure in bucket cylinder and will cause failure to your loader, which is not covered under warranty. Never push on bucket when it is in this position. 34
9.12. PROHIBITED OPERATIONS Step 3: Apply force with bucket cylinders 9.12.1. Never perform following operation with a loader. Failure to follow these instructions could cause high pressure spikes in system causing failure or damage to cylinders, hoses or loader frame members. Step 1: Extend lift cylinder Step 2: Hook bucket edge to solid object Step 3: Apply force with bucket cylinders Step 2: Hook bucket edge to solid object Step 1: Extend lift cylinders CAUTION: Doing this type of operation with your tractor and loader could result in personal injury or death. 9.12.2. Never perform following operation with a loader. Failure to follow these instructions could cause high pressure spikes in system causing failure or damage to cylinders, hoses or loader frame members. Step 1: Extend lift cylinder Step 2: Connect chain or nylon strap to bucket and solid object Step 3: Apply force with bucket cylinders Step 4: Drive tractor forward or rearward Step 3: Apply force with bucket cylinders Step 4: Drive tractor forward or rearward Step 2: Connect chain or nylon strap to bucket and solid object Step 1: Extend lift cylinders CAUTION: Doing these types of loader operations with your tractor and loader could result in personal injury or death. Damage caused to any of these components due to these types of loader operations are not covered under warranty. 35
9.13. BUCKET CYLINDER ROD END PRESSURE RELIEF 9.13.1. A hydraulic relief is located in the bucket cylinder rod end circuit. This relief will activate when the rod end pressure exceeds the pressure relief setting. This relief will activate when digging with the bucket positioned at an excessive angle. If this relief activates the bucket cylinder will extend. If this occurs stop operation immediately, reposition loader and/or evaluate loader application to eliminate the pressure relief activating. Bucket Rod Circuit Relief 4200 PSI Important: Never apply force with the tractor to the loader bucket or attachment if dump stops are engaged. Failure to follow these instructions will cause damage to the loader stops not covered under warranty. Important: If this relief activates cavitation will occur in the system. Before operating loader cycle unit a number of times to eliminate the air in the system. This is very important. If your unit is equipped with hydraulic self leveling, see hydraulic self leveling instructions in this manual. Bucket cylinder will extend if circuit relief is activated Dump Stop contacting Boom Stop Never push or pull material with bucket in this position 36
9.14. LIFT CYLINDER ROD END PRESSURE RELIEF 9.14.1. A hydraulic relief is located in the lift cylinder rod end circuit. This relief will activate when the rod end pressure exceeds this pressure relief setting. This relief could activate while back dragging with the loader or when putting downward force on the cutting edge with the lift cylinder circuit in the neutral position. If this relief activates the lift cylinders will extend. Lift Rod Circuit Relief 5200 PSI DANGER: Never use the loader to lift front end of tractor off of the ground to service the unit. Failure to follow these instructions could cause personal injury or death. Important: If this relief activates cavitation will occur in the system. Before operating loader cycle unit a number of times to eliminate the air in the system. This is very important. If your unit is equipped with hydraulic self leveling, see hydraulic self leveling instructions in this manual. 37
10. DISMOUNTING THE LOADER CAUTION: Always park loader with material bucket attached to the loader. CAUTION: When servicing the loader or leaving operator's seat for any reason, always: Lower the loader to ground. Turn on Comfort Drive, if equipped Apply the parking brake securely Shut off the engine Turn on tractor switch so Comfort Drive Solenoid is energized. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. Return lever or levers to neutral position. Turn off tractor switch and remove the key. CAUTION: Do not stand, walk, or work under a raised loader or attachment unless it is securely blocked or held in position. Accidental movement of valve handle/handles or leaks in the hydraulic system could cause the loader to drop, or attachment to dump, causing severe injury. CAUTION: Do not allow bystanders in loader work area. IMPORTANT: Never allow weight of tractor to be placed on parking stands when mounting or dismounting loader. 10.1.1. Position the loader on a hard level surface. The more level the surface the easier the loader is to mount and dismount. 10.1.2. Raise loader, dump bucket 90 o to ground, and then lower loader so that bucket cutting edge is approximately 1/2" off of ground. Bearing Box Tower Cutting edge of bucket 1/2" off of ground. 10.1.3. Remove snap pins from handle pins located in bearing boxes. Bearing Box Handle Pin Snap Pin 38
10.1.4. Remove parking stands from storage positions in the boom crosstubes. Return hairpin cotters to storage positions. Hairpin Cotter in Storage Position. Parking Stand in Storage Position. 10.1.5. Position parking stands in attaching brackets as shown. Secure using clevis pins and hairpin cotters. Clevis Pin and Hairpin Cotter in Park Position. Attaching Bracket. Parking Stand in Park Position. 39
10.1.6. Make sure long end of parking stand is located toward rear end of tractor. Photo shows parking stands in park position and loader ready to be dismounted. Parking Stands in Park Position with long end of stands positioned rearward. 10.1.7. If your loader is equipped with Comfort Drive, Lower the loader to ground. Turn on Comfort Drive, if equipped Apply the parking brake securely Shut off the engine Turn on tractor switch so Comfort Drive Solenoid is energized. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. Return lever or levers to neutral position. Turn off tractor switch and remove the key. then disconnect Comfort Drive electrical disconnect located on RH side of tractor in area of Mid Mount Coupler Kit or Mid Mount Faster Coupler Kit. 10.1.8. Retract tilt cylinders (A) to roll bucket back and retract lift cylinders (B) to lower loader boom down until parking stands make firm contact with ground. NOTE: Driving the tractor forward slowly while positioning loader will allow parking stands to contact ground firmly. Bucket resting on ground. Parking Stands contacting ground firmly. A B 40
10.1.9. Retract lift cylinders (C) until bearing box pins (D) rotates out of bracket towers. C D 10.1.10. Slowly drive tractor forward while (E) retracting tilt cylinders (F). Doing this will allow bearing boxes to guide loader as it is being parked off of tractor. This will allow loader to be held in position to clear exhaust and tractor hood during dismounting. F E Bearing Boxes 10.1.11. Retract tilt cylinders (G) completely. 10.1.12. Make sure all loader components clear tractor. Back tractor away (H) slightly. 10.1.13. Stop the tractor engine and then work valve handle/handles to relieve hydraulic fluid pressure in lines. Refer to tractor operator manual for additional information. G H 41
10.1.14. Reinstall handle pins and snap pins to bearing boxes for storage. 10.1.15. Disconnect loader hoses. Start tractor and slowly back tractor away from the loader. Store Handle Pins and Snap Pins in Bearing Box IMPORTANT: To avoid hydraulic hose damage, be alert and make sure hoses do not catch on tractor and/or loader during mounting or dismounting. WARNING: Make sure parked loader is on a hard level surface. Engage all safety devices to prevent loader from falling and being damaged or injuring someone. Do not repair loader if it is not mounted on the tractor. Loss of hydraulic fluid or removal of parts could cause loader to collapse resulting in injury. 42
11. MOUNTING THE LOADER CAUTION: Do not stand, walk, or work under a raised loader or attachment unless it is securely blocked or held in position. Accidental movement of valve handle/handles or leaks in the hydraulic system could cause the loader to drop, or attachment to dump, causing severe injury. CAUTION: Do not allow bystanders in loader work area. IMPORTANT: Never allow weight of tractor to be placed on parking stands when mounting or dismounting loader. B 11.1.1. To aid in mounting and dismounting loader, apply a small amount of grease, if needed, to each tower in areas of tower bottom receiver (A), tower top receiver (B), handle pin bushing (C) and tower guides (D). Tower D A C 11.1.2. Slowly drive tractor forward to a position where the loader hoses can be connected to the tractor. 11.1.3. Stop the engine. Connect the loader hydraulic hoses. 11.1.4. Remove handle pins and snap pins from bearing boxes. 43
11.1.5. Check that lift cylinders are fully retracted. Position loader to clear tractor muffler and hood. Then drive tractor forward. Use tilt cylinders to position height of bearing box top pin making sure all loader components clear all tractor components. Bearing Box Top Pin Tower Top Receiver Bearing Box Tower 11.1.6. Align bearing box top pin with tower top receiver guide post, both sides. Make sure loader is centered right to left on both towers. Extend tilt cylinders further until top bearing box pin seats in both towers. Tower Bearing Box Bottom Pin Bearing Box Centered Right to Left on Tower Bearing Box Top Pin Tower Top Receiver Guide Post Tower Top Receiver Bearing Box 11.1.7. Extend lift cylinders (A) slowly making sure loader seats completely in tower top receivers (B) and tower bottom receivers (C). D A B C 44
11.1.8. Extend tilt cylinders (D) until bucket is approximately 1/2" off ground. 11.1.9. Secure loader to mounting brackets as follows. 11.1.10. While raising loader slightly, position bucket 90 o to ground then lower until cutting edge is 1/2" off of ground. D 11.1.11. Reinstall handle pins to bearing boxes and secure using snap pins. Bearing Box Handle Pin Snap Pin 11.1.12. Remove parking stands from parked position. Return clevis pins and hairpin cotters to attaching brackets for storage. Clevis Pin and Hairpin Cotter in Park Position. Attaching Bracket. Parking Stand in Park Position. 45
11.1.13. Return parking stands to storage positions in the boom crosstubes. Secure using hairpin cotters. Hairpin Cotter in Storage Position. Parking Stand in Storage Position. 11.1.14. Lower loader to ground then route and secure loader hydraulic hoses. 11.1.15. If your loader is equipped with Comfort Drive reconnect electrical disconnect. Make sure wire is routed so it will not be damaged during loader operation. IMPORTANT: To avoid hydraulic hose damage, be alert and make sure hoses do not catch on tractor and/or loader during mounting or dismounting. 46
12. QUICK ATTACH INSTALLATION AND OPERATION IMPORTANT: Read safety information in this section and on decal before operating quick attach. Model 1860 Loader: Quick Attach is standard equipment. WARNING: Always read and follow operating instructions before operating quick attach. 12.1. INSTALLATION INSTRUCTIONS IMPORTANT: Do not extend tilt cylinders without quick attach installed on loader. Failure to follow these instructions could cause damage to loader, which is not covered under warranty. 12.2. OPERATING INSTRUCTIONS CAUTION: Except when detaching or attaching a quick attach bucket or attachment to your quick attach, always position the quick attach handle in the handle engaged position, Figure 3, page 49. This will prevent accidental tripping of quick attach handle when not in use. CAUTION: To avoid personal injury, keep hands and feet away from loader when operating. IMPORTANT: To maintain your quick attach functioning properly, always inspect quick attach components for damage. If damage exists, replace component immediately. IMPORTANT: To maintain your quick attach functioning properly, always keep quick attach, quick attach linkages, and pin areas clean. Quick Attach Handle Linkages Quick Attach Pin Area Quick Attach Handle Quick Attach Notch Quick Attach Attachment 47
12.3. NON-FACTORY APPROVED ATTACHMENTS IMPORTANT: It is strongly recommended that only KMW Factory Approved Attachments specified in KMW Sales Manual be used with KMW Loaders. However, if you are going to use another brand of attachment on this loader check the following before proceeding. 12.3.1. Check that dimensions of attachment matches drawing below. If your attachment does not match these dimensions, do not use attachment on your KMW Loader. 25 degrees Accept 1-9/16 to 1-5/8 diameter rod 12.6247 1.5.86 diameter 9.4527 min. 1 31.102 42.929 12.3.2. Check attachment operation when installing for first time, A. Make sure quick attach engages attachment and locking pins works correctly. B. Slowly roll attachment completely back and then function grapple or attachment through its open and closed function making sure it clears all loader components. C. Slowly dump attachment against stops. D. Then function grapple or attachment through its open and closed function making sure it clears all loader components. IMPORTANT: Failure to follow above instructions could cause damage to loader components from contact with attachment which are not covered under warranty. 48
12.4. QUICK ATTACH HANDLE DISENGAGED AND ENGAGED POSITIONS 12.4.1. Quick Attach Handle Disengaged Position: To position quick attach handle into the handle disengaged position, pull quick attach handle to the left as shown in Figure 1 and then lock into quick attach notch as shown in Figure 2. Right to Left Alignment Guides Handle Disengaged Position. Figure 1 Quick Attach Notch 12.4.2. Quick Attach Handle Engaged Position: Figure 3 shows quick attach handle in the handle engaged position. When quick handle is in this position, quick attach handle must line up with handle engaged white marking on back side of quick attach. Handle Engaged Position Handle Engaged White Marking Handle must align with White Marking Figure 2 Figure 3 49
13. INSTALLING BUCKET OR ATTACHMENT TO QUICK ATTACH IMPORTANT: Refer to page 49 for Instructions concerning Quick Attach Handle Disengaged and Engaged Positions. 13.1. OPERATING INSTRUCTIONS CAUTION: When servicing the loader or leaving operator's seat for any reason, always: Lower the loader to ground. Turn on Comfort Drive, if equipped Apply the parking brake securely Shut off the engine Turn on tractor switch so Comfort Drive Solenoid is energized. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. Return lever or levers to neutral position. Turn off tractor switch and remove the key. CAUTION: Do not stand, walk, or work under a raised loader or attachment unless it is securely blocked or held in position. Accidental movement of a control lever/levers or leaks in the hydraulic system could cause the loader to drop, or attachment to dump, causing severe injury. 13.1.1. To aid in alignment of bucket or attachment to your quick attach, this surface of attachment should be painted white. Bucket or Attachment Top Hooks Keep this surface painted white and clean for easy alignment of your bucket or attachment to quick attach 13.1.2. To attach quick attach bucket or attachment to loader, lower loader boom to ground with quick attach rolled forward slightly. Pull quick attach handle into the handle disengaged position and lock into quick attach notch. Right to Left Alignment Guides. Quick Attach Handle located in Handle Disengaged Position. Quick Attach Top Round. 13.1.3. Roll quick attach forward by extending attachment cylinders just enough to allow quick attach top round to engage bucket attachment top hooks. Drive tractor forward, aligning the lower mounts of attachment with quick attach. Bucket or Attachment Top Hooks Roll quick attach slightly forward and position below top hook on attachment. 50
13.1.4. Position quick attach so lower mount of bucket or attachment identified with white paint aligns with and between bushing and plate of quick attach. NOTE: Top round of quick attach must be positioned below hooks on attachment. Hooks located on attachment Lower Mount, Painted White NOTE: over extension of attachment cylinders during this operation could cause damage to quick attach handle due to handle contacting bucket or attachment. Quick Attach Bushing Quick Attach Plate 13.1.5. When quick attach is aligned with bucket or attachment, raise loader boom slowly making sure top round of quick attach engages into attachment hooks on attachment. Then roll bucket or attachment back slowly. This will position bucket or attachment on quick attach. 1. Raise Loader 2. Roll attachment slightly back. 3. After attachment is engaged to quick attach, lower loader so attached is approximately 1 off ground. 13.1.6. Roll bucket or attachment back slowly so that quick attach handle contacts the handle kickoff located on the front crosstube of loader. This will push the quick attach handle forward securing bucket or attachment to the quick attach. Quick Attach Handle Handle Kickoff 51
13.1.7. Check to see that quick attach has been latched to attachment by rolling quick attach bucket or attachment back and then raising loader boom to hood height. NOTE: Quick attach handle must be located in the handle engaged position. Refer to photo at right and Figure 3 page 49. Quick Attach Handle should align with White Mark on Quick Attach as shown. 13.1.8. Check that quick attach bucket or attachment is securely attached to quick attach by raising loader boom 3 to 4 feet, dumping bucket or attachment 20 to 30 degrees to ground, lowering loader to ground and putting downward pressure on bucket or attachment. Check to be sure bucket or attachment does not roll out of quick attach. Roll attachment forward. Attachment should not rollout of quick attach. CAUTION: Do not allow bystanders in loader work area. WARNING: A bucket or attachment that is not securely locked into quick attach could come off during loader operation causing serious injury or death. 13.1.9. Inspect quick attaching areas to verify that quick attach pins have engaged bucket or attachment engaging bar fully. This can be done with attachment rolled forward slightly or flat on ground. Quick Attach Pin Quick Attach Plate Bucket or Attachment Engaging Bar Quick Attach Pin Bushing 13.1.10. If installing an attachment utilizing a third cylinder hydraulic circuit, connect hoses to quick couplers. 52
14. REMOVING BUCKET OR ATTACHMENT FROM QUICK ATTACH IMPORTANT: Refer to page 49 for instructions concerning Quick Attach Handle Disengaged and Engaged Positions. CAUTION: When servicing the loader or leaving operator's seat for any reason, always: Lower the loader to ground. Turn on Comfort Drive, if equipped Apply the parking brake securely Shut off the engine Turn on tractor switch so Comfort Drive Solenoid is energized. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. Return lever or levers to neutral position. Turn off tractor switch and remove the key. CAUTION: Do not stand, walk, or work under a raised loader or attachment unless it is securely blocked or held in position. Accidental movement of a control lever/levers or leaks in the hydraulic system could cause the loader to drop, or attachment to dump causing severe injury. 14.1. OPERATING INSTRUCTIONS 14.1.1. To disconnect bucket or attachment from loader, position bucket or attachment slightly rolled back and approximately 1 off of ground. Refer to photo at right. Then pull quick attach handle into the handle disengaged position and lock into quick attach notch. Refer to Figure 1 and 2, page 49. Quick Attach Handle CAUTION: Never leave loader valve in float position while doing this procedure. Loader could drop suddenly causing severe injury. 14.1.2. Roll bucket or attachment forward and lower to ground. Back tractor/loader away from bucket or attachment. Refer to photo at right. Then roll quick attach back. Return quick attach handle to latch position. Refer to Figure 3, page 49. NOTE: Over extension of attachment cylinders during this operation could cause damage to quick attach handle due to handle contacting bucket or attachment 14.1.3. If removing an attachment utilizing a third cylinder hydraulic circuit, disconnect hoses from quick couplers. Connect attachment male and female quick couplers together to reduce chance of pressure intensification while attachment is parked. 53
15. BALE PROBE (QUICK ATTACH) IMPORTANT: Read safety information in this section and on decals before operating attachments. IMPORTANT: It is not recommended that loader be dismounted with bale probe attached. Always dismount loader with bucket attached. CAUTION: When transporting a round bale, tilt the bale probe slightly back from level and carry the load in a low position. CAUTION: Never raise round bale to full height with bale probe rolled back as serious injury or death could occur. CAUTION: To prevent bodily injury, park and store bale probe with points pointed against bale, building, or other stable object. 54
15.1. BALE PROBE ATTACHMENT IMPORTANT: The bale probes are a high strength alloy drop forged steel and should not be welded or heat-treated. IMPORTANT: Maximum load limit on bale probe attachment is 2,000 pounds. 15.2. ASSEMBLY INSTRUCTIONS 15.2.1. Install each Bale Probe into a tapered sleeve and secure with nut. Torque nut to 515 ft. lb. Failure to follow these instructions could cause damage to probe and void your warranty. (1) Probe with flat surface located upward. (2) Tapered Sleeve. (3) Probe Nut, 28mm. Torque nut to 515 ft. lb. 15.3. INSTALLATION INSTRUCTIONS TO QUICK ATTACH (3) (2) (1) IMPORTANT: Refer to Pages 50 to 52 for instructions concerning Installing Attachment to Quick Attach. IMPORTANT: Refer to Page 53 for instructions concerning Removing Attachment from Quick Attach. 15.4. OPERATING INSTRUCTIONS Probe Bale 15.4.1. With bale probe with attachment level with both tines ground, approach bale centered while centering tines left to right slightly above center. on bale and positioned 15.4.2. With both bale slightly probes completely above engaged into bale, tilt bale center of bale. probe attachment slightly back from level and transport the load in a low position. CAUTION: Bale probe attachment is only designed to carry one round bale at a time. Always spear a single bale with both tines. Failure to do this could result in serious personal injury or death. 55
16. PALLET FORK (QUICK ATTACH) IMPORTANT: Read safety information in this section and on decals before operating attachments. WARNING: The pallet fork attachment is specifically designed to engage and load palleted materials. Do not use forks to handle large loads such as bales, posts, etc. as they can fall or roll back onto operator causing serious injury or death. IMPORTANT: It is not recommended that loader be dismounted with pallet fork attached. Always dismount loader with bucket attached. 16.1. QUICK ATTACH PALLET FORK 16.1.1. The Quick Attach Pallet Fork has two tines each 1-1/2 x 4 x 48. 16.2. ASSEMBLY INSTRUCTIONS 16.2.1. Install (3) pallet fork tines to (4) pallet fork frame using (1) pin. Secure using (2) 3/8 x 2-1/2 bolts, lockwashers and nuts, 2 places. 2 2 1 4 1 3 56
16.2.2. Install (5) back guard assembly to (4) pallet fork frame using (6) ½ x 1-1/2 bolts, hardened flatwashers and locknuts, 4 places. 5 6 4 16.3. INSTALLATION INSTRUCTIONS TO QUICK ATTACH IMPORTANT: Refer to Pages 50 to 52 for instructions concerning Installing Attachment to Quick Attach. IMPORTANT: Refer to Page 53 for instructions concerning Removing Attachment from Quick Attach. 16.4. OPERATING INSTRUCTIONS The operator must keep the load centered and as far back on the forks as possible. Operator must always keep load level. Carry the load low and at a slow speed. 16.5. PARKING INSTRUCTIONS 16.5.1. If parking Pallet fork from loader, move forks outward to widest position to improve stability of parked attachment. CAUTION: Never park loader with Bale Spear or Pallet Fork attached to loader. Failure to follow these instructions could cause instability of parked loader causing personal injury or property damage. 57
17. FOUR TINE GRAPPLE (QUICK ATTACH) CAUTION: Lift and support all loader components safely. Optional Four Tine Grapple can be installed on any Grapple Ready Bucket. The Optional Four Tine Grapple is useful for picking up loose hay or roughage out of stacks, stacking and transporting hay bales, carrying silage, and cleaning up brush. NOTE: Never dump bucket over with grapple open and use grapple as a ripper. This will cause excessive pressure in bucket cylinder and will cause failure to your loader, which is not covered under warranty. 17.1. INSTALLATION INSTRUCTIONS 17.1.1. Uncrate grapple attachment. 17.1.2. Install grapple pedestals to grapple ready bucket using 1 pins, 2 places each side. Secure pins using Lynch pins. Grapple Pedestal Pin 1 and Lynch Pin, 2 places each side. Grapple Swing Arm Attaching Hole Grapple Pedestal to Bucket Attaching Hole. Grapple Cylinder Attaching Hole 17.1.3. Using hoist, install grapple swing arm to grapple pedestals using 1-1/8 pivot pins, 2 places. Secure pins using carriage bolts, flatwashers, and Stover locknuts. Repositioning of swing arm may be required to insert carriage bolts. Flatwasher 3/8" Hardened, 4 places. Stover Locknut 3/8"-16NC, 4 places. Carriage Bolt 3/8"-16NC x 1-1/2" Grade 5, 4 places. Grapple Swing Arm. Swing Arm Pin 1-1/8 x 5.62, 1 place each side. 58
17.1.4. Install 4 tines to grapple swing arm using hex bolts, pair of hardened flatwashers (one on each side of tine), and locknuts. Grapple Swing Arm Hex Bolt 3/4"-10NC x 2-3/4 Grade 5, Flatwasher, Tine, Flatwasher, Locknut 3/4", 3 places each. Grapple Tine, 4 places. 17.1.5. Install cylinders to grapple using 1-1/8 x 3.65 pins in top holes and 1-1/8 x 5.62 pins in bottom holes. Secure pins using carriage bolts, flatwashers, and Stover locknuts. NOTE: Grapple Cylinder ports face toward center of grapple. Flatwasher 3/8" Hardened, 4 places. Stover Locknut 3/8"-16NC, 4 places. Carriage Bolt 3/8"-16NC x 1-1/2" Grade 5, 4 places. Top Pin 1-1/8 x 3.65 Grapple Cylinder, 2 places. Bottom Pin 1-1/8 x 5.62 17.1.6. Install 90 o fittings into grapple cylinders and rotate as shown, typical RH & LH sides. Fitting 90 o, rotate aligning with cylinder center line. Fitting 90 o, rotate toward bucket slightly. 59
17.1.7. Install bulkhead tee fittings to bucket bracket as shown. Then install fittings and hoses as illustrated. A. Bulkhead Tee Fitting, 2 places. B. Flatwasher 3/4" C. Bulkhead Nut D. Fitting 90 o JIC 3/4" x 3/4" E. Hose 3/8 x 38, 2 places F. Hose 3/8 x 30, 2 places G. Hose 3/8 x 33, 2 places LH H. Bulkhead Mount located on Bucket J. Nylon Tie, to secure hoses K. Hose Protector, located 10 from quick coupler end of hose. L. Nylon Tie, 4 places. M. Female Quick Coupler, attach to this hose. N. Male Quick Coupler, attach to this hose. G E F D F E C H B A E F L K M N 10" 17.1.8. Route hoses so they will not be damaged during loader operation. 17.1.9. Secure bulkhead tee to bucket by tightening "C" Bulkhead Nut on frontside and "B" Flatwasher on backside of "H" Bulkhead Mount located on Bucket. 60
17.1.10. Connect bucket and grapple to loader quick attach as shown starting on page 50. 17.1.11. Connect grapple quick coupler to Loader Third Function Quick Couplers. Route hoses so they will not be damaged during loader use. Female Quick Coupler with dust cover Male Quick Coupler 17.2. THIRD FUNCTION QUICK COUPLERS NOTE: When bucket with grapple is disconnected from loader, always connect grapple quick couplers together. This will keep couplers clean and provide easier connecting of grapple hydraulics when reattaching to loader. CAUTION: To prevent potential injury, always close grapple when attachment is not in use. 17.2.1. Connect hoses so that grapple operates as shown below. Refer to illustration below and information as described on pages 21, 22 and 23. 17.2.2. If grapple does not operate as shown, switch hoses feeding quick couplers at Third Function Mount or at Bulkhead Tee Fittings. 17.3. OPERATING INSTRUCTIONS 17.3.1. When properly connected, the 3rd function valve should operate the grapple as follows. If not, switch 3rd function quick couplers around and try again. (1) Press the number 1 left hand plus handle switch to open the grapple. (2) Press the number 2 right hand plus handle switch to close the grapple. 17.3.2. When operating the loader with the grapple attachment, always remove the upper level of the stack first and approach the stack with the bucket level. The upper grapple teeth must be in the maximum open position. Never ram the grapple into material to be loaded to gain the desired depth. Close the upper grapple assembly only far enough to hold the material in place. Never force grapple tines into material using lift cylinder. Failure to follow these instructions could cause damage to loader components. 61
17.4. DISMOUNTING GRAPPLE FROM BUCKET CAUTION: Lift and support all loader components safely. 17.4.1. Close grapple, relieve hydraulic pressure from system, and then disconnect the bucket and grapple from your loader quick attach. See information starting on page 53. 17.4.2. Loosen bulkhead nuts securing grapple hydraulic bulkhead tee fittings to bucket mount. Slide tee fittings out of mounting slots, 2 places. Flatwasher Mounting Slot Bulkhead Nut Tee Fitting 17.4.3. Connect a hoist, chain or sling to grapple assemble as shown. NOTE: Make sure grapple is balanced and strap or chain is secured so it will not slide while grapple is being lifted and moved. Hoist, Chain, or Sling 17.4.4. Raise the hoist slightly until grapple pins can be removed easily. 17.4.5. Remove 4 grapple pins slowly making sure grapple is balanced and is securely held in place by hoist. Grapple Pins, 2 places each side 17.4.6. Using hoist lift the grapple off of the bucket. Store the grapple on a solid firm surface. Install dust plug into female quick coupler. DO NOT connect male and female coupler together when grapple is removed from the bucket. This will prevent cylinders from moving if a external force would accidentally be applied to the parked grapple. Optional Grapple Extension 62
17.5. MOUNTING GRAPPLE TO BUCKET CAUTION: Lift and support all loader components safely. NOTE: Bucket should be disconnected from loader when attaching grapple to bucket. 17.5.1. Attach hoist with chain or sling to grapple. NOTE: Make sure grapple is balanced and strap or chain is secured so it will not slide while grapple is being lifted and moved. Hoist, Chain, or Sling 17.5.2. Raise the hoist slightly until grapple top hole is aligned with bucket. Install top pins and lynch pins, 1 place each side. 17.5.3. Rotate grapple rearward and align bottom holes. Install bottom pins and lynch pins, 1 place each side. Top Pin and Lynch Pin, installed first, 1 place each side Bottom Pin and Lynch Pin, installed second, 1 place each side. 17.5.4. Position bulkhead tee fittings over bucket attaching bar. Make sure flatwasher is on one side of mounting bar and bulkhead nut is on the opposite side of mounting bar. Position and secure by tightening bulkhead nuts. Flatwasher Mounting Slot Bulkhead Nut Tee Fitting 17.5.5. Check hose routings make sure they are routed so they will not be damaged during loader operation. Then reattach the bucket and grapple to your loader quick attach following instructions starting on page 50. 63
18.1. INSTALLATION INSTRUCTIONS 18. THIRD FUNCTION HOSE KIT 18.1.1. Unpackaged Third Function Hose Kit and then install color nylon tie to each end of each hose. This will allow identification of hoses after they have been routed through the boom frame. 18.1.2. Route 226 hoses on top of right hand boom arm and between right hand tilt cylinder and loader frame as shown. Make sure 5/16 coupler nut and 5/16 bridge nut are between hoses. 5/16 Coupler Nut. Route hoses on top of boom arm. 5/16 Bridge Nut. Route hoses between right hand tilt cylinder and loader frame as shown. Right hand Tilt Cylinder. 64
18.1.3. Install o-rings to short end of bulkhead fittings. Then install bulkhead fitting into attaching plate and secure using bulkhead nut. Bulkhead Nut Attaching Plate O-Ring, install on this end of Bulkhead Fitting Bulkhead Fitting, Short End Bulkhead Nut Attaching Plate O-Ring, install on this end of Bulkhead Fitting Bulkhead Fitting, Short End 18.1.4. Install male and female quick coupler to end of bulkhead fitting with o-ring installed. Install male quick coupler to the rear bulkhead and the female quick coupler to the front bulkhead as shown. Female Quick Coupler Male Quick Coupler 65
18.1.5. Install dust plug in female quick coupler and install ¾ JICF 45 ends of 3 rd function hoses to bulkhead adapters as shown. 3 rd function hoses Bulkhead Adapters Dust Plug 18.1.6. Install sponge rubber on both ends of hose cover so sponge rubber sticks over edge approximately 1/8. 1/8 Sponge Rubber, 1 place each end Hose Cover 66
18.1.7. Install 30 hose sock as shown. Slide hose sock up until it contacts 5/16 coupler nut on top of boom arm. Install hose cover on top of boom arm using 5/16 x 1 bolt, 5/16 lockwasher and 5/16 flatwasher for the coupler nut side and using 5/16 x 2.25 bolt, 5/16 lockwasher and 5/16 flatwasher for the bridge nut side. 5/16 x 1 bolt, 5/16 Lockwasher, 5/16 Flatwasher, 1 place each Sponge Rubber installed on end of Hose Cover 30 Hose Sock slides up until it contacts bridge nut Hose Cover 18.1.8. Secure two 226 hoses to base loader lift circuit hoses as shown with plastic tie strap. Base Loader Lift Circuit hoses 3 rd Function 226 hoses Plastic Tie Strap 67
18.1.9. Install other end of the two third function hoses to either Remote Hose Kit, Mid Mount Quick Coupler Kit or Faster Coupler Kit. See appropriate instructions for kit you have installed on your tractor. 18.1.10. Route third function hoses so they do not become damaged during loader operation and secure as required. Third Function Hoses NOTE: Photo shows third function hoses connected to Mid Mount Coupler Kit. 18.1.11. Connect hoses so grapple operates as shown on page 61. Mark couplers/hoses using colored nylon ties so they can be easily identified when connecting and disconnecting hose circuits. 68
19. OPTIONAL MID-MOUNT FASTER COUPLER KIT NOTE: Optional Mid-Mount Faster Coupler Kit is equipped with 1 lever connect and disconnect of hydraulic circuits. 19.1. OPERATION 19.1.1. Refer to following instructions along with the instructions included in the handbook shipped with your Multifaster system. 19.2. CONNECTION & DISCONNECTION 19.2.1. Connection and disconnection with Multifaster system are very simple and easy operations. 19.2.2. Simultaneous connection is achieved, thanks to a lever linked to cams allowing the progressive moving of the mobile part to the fixed one. 19.2.3. Multifaster system is suitable for connection and disconnection under pressure. 19.2.4. Anyway, for safety reasons it is always advisable to decrease the internal pressure before this operation. 69
19.3. CONNECTION PHASE 19.3.1. Pick-up the dust cover of the fixed part. 19.3.2. Push the safety lock button. 19.3.3. In the same time, lift up the lever. 19.3.4. Put the mobile part on the fixed one. 19.3.5. Engage the reference pins in the proper holes. 19.3.6. Lean the rolling pins on the cams profiles. 19.3.7. Turn down the lever till stop. 19.3.8. Connection is achieved once the safety button releases automatically. 19.4. DISCONNECTION PHASE 19.4.1. Hold in a firm way the lever. 19.4.2. Push the safety button. 19.4.3. Lift up the lever till the rolling pins are free from the cams profiles. 19.4.4. Place the mobile part on the suitable support. 19.4.5. Close the dust protection on the fixed part. 70
19.5. IMPORTANT WARNINGS 19.5.1. Each Multifaster is provided of a sticker pointing out the most important things to remember when using this product. This symbol reminds that the Multifaster system works with high pressure inside. For this reason it is always advisable to use the product in a proper way in order to prevent damages to people and machines. This symbol reminds to carefully read this INSTRUCTION SECTION before each installation and use of Multifaster system. This symbol reminds that a safety lock is assembled on the product. To disconnect the Multifaster it is always necessary to push the safety lock button. Do not force the lever without pushing the safety lock button. This symbol reminds that, before each connection, it is advisable to ensure to clean the mating surface of the Multifaster fixed part, mobile part and the reference pins. Dirt inclusions may cause damages to seals with consequent leakages form the Multifaster. 19.6. ORDINARY MAINTENANCE 19.6.1. Multifaster is a complex system, designed to work with high pressure inside, in a dusty environment and exposed to atmospheric agents. For this reason it is very important to schedule an ordinary maintenance activity, carried out day by day, before each use of the Multifaster. 19.6.2. By following the suggestions below, the service life of the product will be increased and the Multifaster will be allowed to work in a better way in every situation. 19.6.3. Before each connection, ensure to carefully clean the mating surfaces of the fixed part, of the mobile part, and the reference pins. 19.6.4. Lubricate periodically all the moving components (see the picture). 19.6.5. Once the Multifaster is disconnected, please close the automatic dust cap to prevent dirt inclusions and to keep the flat surface of the fixed part clean. 19.6.6. Place the Multifaster mobile part on the suitable support when it is not used. 71
20.1. INSTRUCTIONS 20. OPTIONAL COMFORT DRIVE 20.1.1. Transporting heavy loads over rough terrain can heavily stress the tractor and loader it reduces stability and causes discomfort to the operator. If you equip your loader with comfort drive you will reduce the stresses in the tractor and loader, increase tractor stability and operator comfort. 20.1.2. The KMW Comfort Drive system is made up of a two single piston accumulator built into one unit. The smaller side of the accumulator is connected to the Rod end of the lift cylinder and the larger side of the accumulator is connected to the base end of the lift cylinders. When charged properly these accumulators allow the loader lift cylinders to move a short distance when carrying a load over a rough surface. This movement reduces the shock stress to the tractor, loader and operator and increases stability of unit. 20.1.3. The KMW Comfort Drive system can be turned on and off from your tractor seat. This allows the operator to turn off this system when digging with loader, when handling loads in sheds and any time operator need precise loader control. It can then be turned back on when the operator is traveling across rough terrain. 20.2. OPERATION CHARACTERISTICS 20.2.1. When the comfort drive system is turned on the loader may raise or lower slightly depending on the pressure the system was under at the time the operator turns the system on or off. 20.2.2. When dumping a load with the comfort drive system on the loader will raise slightly when the load is removed from your attachment. When in close areas such as unloading in a shed always turn off the comfort drive system. 20.2.3. Photo shows basic location of comfort drive dual cavity accumulator. 1860 - Comfort Drive Dual Cavity Accumulator located inside boom crosstube. NOTE: Your comfort drive installation may differ slightly from photo see following instructions. 20.2.4. To improve performance of comfort drive always turn comfort drive on before loading your bucket or attachment. This will reduce cavitation in lift circuit allowing comfort drive to give you a smooth ride. WARNING: Always turn on Accumulator (Comfort Drive), lower loader/attachment to ground and relieve hydraulic pressure from system, before servicing unit. Failure to follow these instructions could result in personal injury. CAUTION: Caution should be taken when turning on the comfort drive system make sure loader is away from personnel, power lines, roofs or any other structure because loader will lower or raise slightly until loader cylinders and accumulator pressures are equalized. WARNING: Never turn comfort drive on while tractor is moving. Loader movement could cause loader to lower causing attachment or material being moved to contact ground. Failure to follow these instructions could result in personal injury or property damage. CAUTION: When servicing the loader or leaving operator's seat for any reason, always: Lower the loader to ground. Turn on Comfort Drive, if equipped Apply the parking brake securely Shut off the engine Turn on tractor switch so Comfort Drive Solenoid is energized. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. Return lever or levers to neutral position. Turn off tractor switch and remove the key. CAUTION: Gas pressurized vessel Charge with Nitrogen only Do not disconnect oil line before releasing oil pressure Do not Disassemble accumulator before releasing oil and gas pressure 72
20.3. OPERATION AND MAINTENANCE 20.3.1. Comfort Drive accumulators must not be used with any hazardous fluid. Only petroleum base fluids are to be used. It is essential the user follow strictly the instructions as follows. 20.3.2. Maximum hydraulic working pressure for accumulators is 3000 PSI. DO NOT EXCEED this limit. 20.3.3. Temperature operating range is MINUS (-) 20 F. to PLUS (+) 200 F. with the petroleum based fluids. 20.3.4. KMW does not accept any responsibility for damage to persons or property or for any consequences e.g.: loss of operation, resulting from the failure to observe the instructions set out in this manual. 20.4. DELIVERY 20.4.1. Accumulators are delivered with no nitrogen pre-charge, however, only a very low residual nitrogen charge may remain in the accumulator from the factory testing. 20.5. HANDLING 20.5.1. Suitable lifting gear should be used for the weight of the accumulator(s) and the gas charging valve must be protected from an external impact. 20.6. STORAGE 20.6.1. The storage location must be kept cool and dry. The accumulator must not be exposed to heat or flames. 20.7. INSTALLATION 20.7.1. Prior to installation, a visual inspection should be carried out for detection of any damage. 20.7.2. For maximum seal life, fluid should be filtered to 10 micron or less. 20.8. PRECAUTIONS 20.8.1. Beware of sudden release of pre-charge pressure. When necessary, discharge the gas side of the accumulator using a charging and gauging assembly. 20.8.2. Allow adequate space above the gas valve permitting access for the charging and gauging apparatus. 20.8.3. Leave caution labels in clear view and legible. 20.8.4. Install so no abnormal force is brought to bear on the plumbing connected either directly or indirectly to the accumulator. 20.8.5. Secure the accumulator tube to a support using U-bolt mounting brackets preventing its movement in the event of failure of its connection to the hydraulic installation. 20.8.6. Connect the accumulator to the hydraulic circuit using appropriate connecting devices. 20.9. STRICTLY PROHIBITED 20.9.1. Welding or riveting any parts or assemblies to the accumulator for attachment or otherwise. 20.9.2. Carrying out any operation that could affect the mechanical properties of the accumulator. 20.9.3. Using the accumulator as a structural element, subjecting it to any stress or external physical loading. 20.9.4. Improper tightening of U bolt clamps for mounting the accumulator and causing distortion of the tube and binding between the piston and tube. 73
20.10. ASSEMBLY INSTRUCTIONS Loosen this nut to charge accumulator Figure 1 20.11. ASSEMBLE PISTON 20.11.1. Lubricate all Seals before assembly. 20.11.2. Assemble T-seal in the front groove of the Piston. 20.11.3. Assemble Backup on both sides of the T-Seal. 20.11.4. Assemble Wear Ring in the middle groove of Piston. 20.11.5. Assemble Wear Ring in the rear groove of Piston 20.11.6. Install Piston Assembly into Tube Assembly. 20.12. ASSEMBLE END CAP 20.12.1. Lubricate all Seals before Assembly. 20.12.2. Assemble Backup as shown into groove of End Cap. 20.12.3. Assemble O-Ring behind Backup. 20.12.4. Place Nylon Plug in side hole of End Cap as shown. 20.12.5. Place End Cap in end of Tube Assembly and thread into place firmly with Spanner Wrench. 20.13. ASSEMBLE CHARGING VALVE 20.13.1. Thread Charging Valve into End Cap. Torque 100-110 in. lb. 20.13.2. Thread Valve Cap into End Cap. 20.13.3. Place Shipping Plug in the end of Valve Cap to complete assembly. 20.14. NITROGEN PRE-CHARGING 20.14.1. Gas pre-charging can be performed before or after the installation of the accumulator in the hydraulic circuit and should be performed only by qualified personnel. Safety equipment such as gloves to protect from handling of the cold gas and a face shield and safety glasses are a must. 74
CAUTION: EXPLOSIVE - Use only oxygen-free, dry nitrogen gas with a minimum purity of 99.95%. The use of compressed air as from an air compressor or oxygen is extremely dangerous and is strictly prohibited. 20.14.2. Mark out a safe working area and adopt a position, which is not inline with the accumulator ports. 20.14.3. Charge the accumulator using the charging and gauging assembly as follows below. 20.14.4. Do not exceed the maximum working pressure and temperature ranges as previously specified. 20.14.5. Avoid charging and discharging repeatedly to minimize the risk of damage to the piston. 20.14.6. Check for leaks from the charging valve, e.g.: by using soapy water. 20.15. USE OF CHARGING AND GAUGING ASSEMBLY WHEN PRE-CHARGING See Figure 1 on page 74. 20.15.1. Both sides of the 1860 loader accumulator will need to be precharged as follows: Large side of accumulator connected to base end of lift pre-charge to 750 PSI. Small side of accumulator connected to the rod end of lift pre-charge to 600 PSI. CAUTION: Be sure main supply valve on the nitrogen bottle is securely closed. Briefly crack open this valve to dislodge any contaminants within the valve, and then apply the appropriate gages/regulator assembly securely to the main supply valve on the bottle. Bottle must be securely retained upright to avoid it falling over. 20.15.2. Obtain a Complete Charging and Gauging Assembly (consists of Charging Hose Assembly- [swivel connector, 10 ft. hose assembly], and Portable Mount Body Assembly- [appropriate-psi gauge, bleeder valve, air chuck, and tank valve]. Follow your instructions for your Charging & Gauging Assembly. Below are generic precharging instructions. 20.15.3. Remove the mounting rod and then the metal valve cap from accumulator. 20.15.4. Remove yellow protective valve cap and/or mounting rods from the valve stem and attach charging & gauging assembly to charging valve. 20.15.5. Loosen lock nut on charging valve approximately 3 turns. 20.15.6. Use regulator on nitrogen bottle; open nitrogen valve. 20.15.7. Charge accumulator to specified pre-charge pressure. The "T" handle on the charging & gauging assembly will need to be tightened if the charging valve has a valve core. 20.15.8. Tighten lock nut on charging valve and allow pressure to stabilize for several minutes, and then repeat steps 5, 6, & 7. 20.15.9. Retighten lock nut, open bleeder valve to bleed hose pressure and remove charging & gauging assembly. 20.15.10. Apply the yellow protective cap to the valve stem. 20.15.11. Apply the metal valve cap to the accumulator end cap. 20.15.12. Accumulator can be charged in boom crosstube by using an additional extension. 20.16. HYDRAULIC PRESSURIZING 20.16.1. Ensure that the hydraulic working pressure never exceeds the maximum pressure of 3000 PSI. 20.17. MAINTENANCE 20.17.1. Check the gas pre-charge pressure regularly during the first few weeks of operation, and then at suitable intervals afterwards based on this initial experience. Check when the hydraulic fluid pressure is at 0 (zero) PSI. 20.17.2. Pre-charge pressure and ambient temperature should be recorded at installation and nitrogen gas precharge pressure should be checked at least once during the first week of operation. If no loss of gas pressure is noted, it should be rechecked in approximately 4 months and thereafter, checked annually. 75
20.17.3. Perform a visual examination of the accumulator periodically in order to detect any early signs of deterioration, such as corrosion, deformation, etc. 20.17.4. After allowing for any appreciable temperature variation, generally an increase in pre-charge pressure indicates a gradual leakage of fluid into the gas side. Conversely, a decrease in pre-charge pressure means leakage of gas into the fluid side. The amount of leakage will depend upon piston velocity. 20.17.5. Before removal, it is vital to ensure that there is no residual hydraulic pressure in the accumulator. Discharge the gas side of the accumulator using a charging and gauging assembly and drain fluid completely from accumulator before carrying out any maintenance operations. 20.17.6. Do not use automotive valve cores to replace the charging valve core. 20.18. COMFORT DRIVE INSTALLATION INSTRUCTIONS Route wire through this hole to rear of boom. Use fish tape to pull wire. Must connect to Rod End of Lift Cylinder Must connect to Base End of Lift Cylinder Connect these wires. Hose 3/8" x 28" Hose 3/8" x 16" Hose 3/8" x 12" Pre-charge short end of accumulator to 600 PSI (Connect to Rod end Lift Circuit) Install O-ring on short side of Bulkhead fitting Pre-charge long end of accumulator to 750 PSI (Connect to Base end Lift Circuit) Long end must connect to base end of lift cylinder Figure 1 To charge accumulator remove mounting rod from accumulator. To expose valve stem see section 20.15 76
20.18.1. Remove hose cover from loader crosstube and install solenoid block to hose cover as shown using two carriage bolt ¼ -20 x 2.25, ¼ -20 stover hex locknuts and solenoid strap. Install ¾ ORBM x ¾ JICM 90 fitting in solenoid block as shown. Solenoid Block Solenoid Strap Carriage Bolt ¼ -20 x 2.25, Stover Hex Locknut ¼ -20, 2 places ¾ ORBM x ¾ JICM 90 fitting 20.18.2. Install O-ring to short side of bulkhead fitting and install in lift rod (short end) port of accumulator. Short side of Accumulator Bulkhead fitting with O-ring installed in short side of Accumulator 20.18.3. Insert accumulator in upper section of loader crosstube making sure that bulkhead fitting installed in the lift rod (short end) port is located on the right hand side of loader as shown. Accumulator will have to be rotated as shown so bulkhead fitting will fit in loader crosstube. NOTE: It may be necessary to remove parking stands from loader crosstube to make insertion of accumulator easier. Bulkhead fitting located on right hand side of accumulator and rotated to fit in crosstube LH Boom Arm 77
20.18.4. When accumulator is centered in crosstube rotate accumulator so bulkhead fitting fits up through hole in crosstube. Secure accumulator to loader using accumulator mount plate, 2 places, hex head cap screw 3/8-16 x 2.25, 3/8 flatwasher and 3/8 lockwasher, 4 places as shown. Make sure bulkhead fitting remains centered in boom crosstube hole while tightening hardware. Secure accumulator to accumulator plates by installing 5/8-18 accumulator nuts on ends of accumulator. Hex Head Cap Screw 3/8-16 x 2.25, 3/8 Flatwasher, 3/8 Lockwasher, 4 places Accumulator Plate 5/8-18 Accumulator Nut 20.18.5. Install 2.7 long fitting ¾ ORBM x ¾ JICM into the remaining port of the accumulator. 2.7 long fitting ¾ ORBM x ¾ JICM Boom Crosstube hole 20.18.6. Remove two caps from tees on lift cylinder circuits. Rod end of Lift Cylinder Base end of Lift Cylinder Remove these caps 78
20.18.7. Install 16 hose assembly 11/16 FFF x ¾ JIFC 90 to bulkhead fitting installed in the accumulator. Leave the other end of the hose loose for now. 16 Hose Assembly 11/16 FFF x ¾ JIFC 90 connected to Bulkhead fitting 20.18.8. Reinstall hose cover hardware as shown. Hose Cover reinstalled 20.18.9. Install 28 hose assembly 11/16 FFF x ¾ JIFC to base end lift circuit tee and to ¾ ORBM x ¾ JICM 90 fitting installed in solenoid block. Route hose as shown. Install remaining end of 16 hose assembly 11/16 FFF x ¾ JIFC 90 to rod end lift circuit tee as shown. Connect 16 hose to Tee fitting connected to rod end of Lift Cylinder 28 hose assembly 11/16 FFF x ¾ JIFC (Lift Cylinder base end circuit) ¾ ORBM x ¾ JICM 90 fitting 20.18.10. Install 12 hose assembly ¾ ORBM x ¾ JICF 90 to solenoid block and to 2.7 long fitting ¾ ORBM x ¾ JICM as shown. Route hose and secure with plastic tie straps in locations shown. 12 hose assembly ¾ ORBM x ¾ JICF 90 Solenoid Block Secure with Plastic Tie Straps 79
20.18.11. Route and mount solenoid ground wire to carriage bolt as shown. Mount Solenoid Ground Wire to Carriage Bolt Pre-charge Valve Short End of Accumulator to 600 PSI Pre-charge Valve Long End of Accumulator to 750 PSI Charging Valve Rod End Base End Long End of of Lift Circuit of Lift Circuit Accumulator 20.18.12. Route fish tape from rear of loader arm through hole in boom arm; attach fish tape to solenoid wire. Attach Fish Tape to this end if pulling wire toward rear of loader. Weather Disconnect End 80
20.18.13. Pull solenoid wire carefully through loader boom frame. Route so it will not be damaged during loader operation. Connect this wire to solenoid wire. 20.18.14. Cover solenoid wire with plastic wire cover. 20.18.15. Secure wire protector using nylon ties on each end. NOTE: Plastic wire protector should extend through hole in boom arm to prevent damage to wire. Route and connect wire as shown 20.18.16. Install universal switch mount in location that allows operator to activate comfort drive easily. This switch may be mounted on your loader control handle as shown or it can be mounted in some other convenient place. Comfort Drive Switch NOTE: Make sure switch location is convenient to operator and it does not interfere with any other tractor control. Refer to illustration below for switch mounting and assembly instructions. 20.18.17. Route fuse wire from comfort drive switch to hot wire of tractor that is activated only when tractor switch is turned on. This will insure that solenoid is deactivated when tractor is shut off and will prevent comfort drive from being turned on when tractor is shut off. U-Clamped to Loader Control Handle Switch Mount 81
Switch Wire Connector Switch Mount Plate Comfort Drive Switch Rear View of Switch Weather Connector U-Bolts Wire to Solenoid Hot Wire to Tractor 5-amp Fuse and Fuse Holder Front View of Switch Switch Wire Connector 20.18.18. Route comfort drive switch wire with weather connector outside of cab and connect this wire to weather proof connector on wire running to comfort drive solenoid. NOTE: Route wiring so it will not be damaged during loader operation. 20.18.19. Install 5-amp fuse into fuse holder. Comfort Drive Switch Wire Connect these Solenoid Wire to Accumulator NOTE: When mounting and dismounting loader, this connector must be connected and disconnected. 20.18.20. Pre-charge accumulator as described in section 20.15 of this manual. Always follow all safety procedures and only pre-charge using Nitrogen. 82
20.19. DISASSEMBLY OF ACCUMULATOR FOR SERVICING Refer to Figure 1 on page 74. NOTE: For disassembly it is good practice to disassemble and reassemble accumulators in a clean area to keep all parts free of foreign matter. Refer to the illustrated Assembly Instruction. 20.19.1. Follow instructions for checking pre-charge, and then release all hydraulic and pre-charge pressure. 20.19.2. Drain balance of hydraulic fluid remaining in accumulator when it is disconnected from system. 20.19.3. Remove gas charging valve. 20.19.4. Remove end cap by using a spanner wrench and unscrewing counter-clockwise. 20.19.5. To remove accumulator pistons having a blind-end at the fluid end, a sufficient length of 3/8-16 allthreaded bolt material should be attached to the threaded hole at the center of the piston. This bolt is then used in pulling the piston from the tube. Care should be taken not to damage piston or seals when passing through the threaded portion of the tube. 20.19.6. Examine piston and end cap seals for signs of damage. Inspect T ring seal closely for score marks or cuts. Excessive cuts should warrant a very thorough examination of metal surfaces for damage. 20.19.7. Clean all metal parts with hydraulic fluid and dry with a soft clean towel. 20.19.8. Inspect tube bore for damage due to foreign contaminant particles in the fluid system. All scratches must be removed from the cylinder bore. Examine threads in tube. Remove any sharp shavings and clean well. 20.19.9. Inspect piston for damage due to bottoming. 20.20. RE-ASSEMBLY OF ACCUMULATOR FOR SERVICING Refer to Figure 1 on page 74. 20.20.1. It is recommended that all seals and wear rings be replaced prior to re-assembly. 20.20.2. Wet seals with hydraulic system fluid and carefully assemble into piston groove. Assure that seals are not twisted. 20.20.3. Insert back-ups carefully so as not to stretch more than necessary. 20.20.4. Apply a light coat of petrolatum to all threads inside tube. 20.20.5. Assemble piston carefully into tube without cocking to avoid damage to the piston and/or seals on the threads. With bolt attached to the piston, align piston with tube and with a hammer, tap the outer end of the bolt to drive the piston assembly inward. Special care must be taken to avoid pinching the back-ups. 20.20.6. Assemble back-up and o-ring onto the end cap groove per illustration. The back-up ring should be nearest the threaded portion. 20.20.7. Apply a light coat of petrolatum to the seals of the end cap and thread end cap into the tube until it bottoms out. Tighten firmly using a spanner wrench. 20.20.8. The accumulator can now be pre-charged per instructions. 83
21. OPTIONAL 2-WAY HYDRAULIC SELF LEVELING CAUTION: Never disassemble this self-leveling valve unless you are a factory trained mechanic. Failure to follow these instructions will void warranty and could cause the self leveling valve to operate incorrectly. If you need service on this valve return complete unit to KMW dealer for service. CAUTION: When servicing the loader or leaving operator's seat for any reason, always: Lower the loader to ground. Turn on Comfort Drive, if equipped Apply the parking brake securely Shut off the engine Turn on tractor switch so Comfort Drive Solenoid is energized. Release all hydraulic pressure in all circuits by moving hydraulic control lever or levers in all positions. Return lever or levers to neutral position. Turn off tractor switch and remove the key. IMPORTANT: This hydraulic self leveling option MUST only be used with hydraulic kits as specified in the KMW sales manual. Use of this hydraulic self leveling kit with any other hydraulic kit than the KMW approved kits is strictly forbidden. Failure to follow these instructions could cause the hydraulic self leveling to perform erratically which could cause damage or personnel injury. 21.1. OPERATING INSTRUCTIONS WHEN INSTALLED ON LOAD SENSE AND CLOSED CENTER HYDRAULIC SYSTEMS IMPORTANT: With hydraulic self leveling, bucket or attachment angle can be adjusted throughout raising and lowering cycles of loader. CAUTION: When using a loader be alert of bucket or attachment position at all times. Loader in raised position with bucket or attachment rolled back can dump material onto tractor causing damage or injury to tractor and/or operator. 21.1.1. The hydraulic self leveling system maintains the orientation of the loader attachment relative to the plane of the tractor tires as set by the operator using the loader attachment cylinders. As long as the attachment cylinders are not operated, the orientation of the attachment will remain when the lift cylinders are functioned. The hydraulic self leveling function is controlled by a manifold block mounted on the outside of the right hand loader bearing box. IMPORTANT NOTE: Self leveling of the KMW loader is accomplished by utilizing a hydraulic self leveling valve. Since oil flow is required to allow this valve to function correctly, the tractor must operate at 1500 RPM or above. Following these instructions allows self level valve to function consistently during loader operation. 21.1.2. If the operator feathers the loader valve the self leveling valve will not level during the raise cycle. This is caused by the limited oil flow coming out of the loader valve. Always fully stroke the loader valve when raising the unit. 21.1.3. When lowering a loaded attachment feathering the load down will allow consistent leveling of the load. 21.1.4. With heavy loads on unit the loader may bounce when lowering load. Running tractor at high rpm will minimize the bounce you may see. 21.1.5. When loader is equipped with self level valve, the operator will see some cycle time speed reductions. However the operator does not have to move bucket manually during cycling of the loader which speeds up the overall operation. 21.1.6. Lowering the load with 2-way self leveling requires metering the return oil from the valve to maintain self leveling operation. This will result in an increased lowering time. 21.1.7. Always let tractor hydraulic oil warm up to operating temperature before using the unit. 21.1.8. Lowering loader with attachment rolled back against rollback stops will cause cylinder cavitation. If loader is then raised, self leveling function will be delayed. NOTE: Lowering loader with bucket rolled off of rollback stops will reduce cavitation and provide more consistent leveling. 84
21.1.9. If loader attachment is completely rolled back against rollback stops and operator tries to lower loader. The loader will lower slowly. To speed up this operation the operator can roll attachment forward away from rollback stops to allow loader to speed up during the lowering cycle and reduce cavitation. 21.1.10. If loader attachment is dumped against dump stops and operator tries to raise loader. The loader will raise slowly. To speed up this operation the operator can roll attachment back away from the loader mechanical stops to allow loader to raise quicker. 21.1.11. Hydraulic self level will not work when loader is in the float position ONLY use float position when the loader is on the ground. Float operation will be slightly slower on a unit equipped with hydraulic self leveling. 21.1.12. Do not use the front-end loader to lift the front wheels of the tractor off the ground for an extended period of time. The self leveling valve has some inherent internal leakage that will cause loader movement which could cause personal injury or death. NOTE: With self leveling installed loader down pressure will be limited. This is caused by the relief valve in the self leveling block activating. With hydraulic self leveling installed on most units the loader will not pick up the front end of the tractor. DANGER: Never use the loader to lift front end of tractor off of ground to service the unit. Failure to follow these instructions could cause personal injury or death. 21.1.13. To improve self level while lowering a load, always roll back load slightly before lowering loader. Raising or lowering loader with attachment rolled back slightly from level will improve self leveling in both directions. 21.1.14. Never dump loaded attachment over more than required to do the job. Rolling heavy loads over too far could cause self level counter balance valve to open allowing attachment to dump. CAUTION: When using a loader be alert of bucket or attachment position at all times. Loader in raised position with bucket or attachment rolled back can dump material onto tractor causing damage or injury to tractor and/or operator. 21.2. OPERATING INSTRUCTIONS WHEN INSTALLED ON OPEN CENTER SYSTEMS (Consult factory for Valve availability) IMPORTANT: With hydraulic self leveling, bucket or attachment angle can be adjusted throughout raising and lowering cycles of loader. CAUTION: When using a loader be alert of bucket or attachment position at all times. Loader in raised position with bucket or attachment rolled back can dump material onto tractor causing damage or injury to tractor and/or operator. 21.2.1. The hydraulic self leveling system maintains the orientation of the loader attachment relative to the plane of the tractor tires as set by the operator using the loader attachment cylinders. As long as the attachment cylinders are not operated, the orientation of the attachment will remain when the lift cylinders are functioned. The hydraulic self leveling function is controlled by a manifold block mounted on the outside of the right hand loader bearing box. IMPORTANT NOTE: Self leveling of the KMW loader is accomplished by utilizing a hydraulic self leveling valve. Since oil flow is required to allow this valve to function correctly, the tractor must operate at medium RPM. Following these instructions allows self level valve to function consistently during loader operation. 21.2.2. If the operator feathers the loader valve down, the self leveling valve will not level. This is caused by the limited oil flow coming out of the loader valve. Always fully stroke the loader valve (without moving it into the float position) during operation, this will allow full flow of oil to the self level valve. 21.2.3. With heavy loads on unit the loader may bounce when lowering load. Running tractor at high rpm will minimize the bounce you may see. Loader valve spool must be fully stroked during loader operation. 21.2.4. When loader is equipped with self level valve, the operator will see some cycle time speed reductions. However the operator does not have to move bucket manually during cycling of the loader which speeds up the overall operation. 21.2.5. Always let tractor hydraulic oil warm up to operating temperature before using the unit. 21.2.6. If loader attachment is completely rolled back against rollback stops and operator tries to lower loader. The loader will lower slowly. To speed up this operation the operator can roll attachment forward away from rollback stops to allow loader to speed up during the lowering cycle. 85
21.2.7. If loader attachment is dumped against dump stops and operator tries to raise loader. The loader will raise slowly. To speed up this operation the operator can roll attachment back away from the loader mechanical stops to allow loader to raise quicker. 21.2.8. Hydraulic self level will not work when loader is in the float position ONLY use float position when the loader is on the ground. 21.2.9. Do not use the front-end loader to lift the front wheels of the tractor off the ground for an extended period of time. The self leveling valve has some inherent internal leakage that will cause loader movement which could cause personal injury or death. NOTE: With self leveling installed loader down pressure will be limited. This is caused by the relief valve in the self leveling block activating. With hydraulic self leveling installed on most units the loader will not pick up the front end of the tractor. DANGER: Never use the loader to lift front end of tractor off of ground to service the unit. Failure to follow these instructions could cause personal injury or death. 21.2.10. To improve self level while lowering a load, always roll back load slightly before lowering loader. Raising or lowering loader with attachment rolled back slightly from level will improve self leveling in both directions. 21.2.11. Never dump loaded attachment over more than required to do the job. Rolling heavy loads over too far could cause self level counter balance valve to open allowing attachment to dump. 21.3. INSTALLATION INSTRUCTION FOR LOAD SENSE HYDRAULIC SYSTEMS 21.3.1. Position the tractor and loader on a hard level surface. 21.3.2. Install hydraulic self leveling block to RH loader bearing box using two 3/8-18 x 1 Hex Bolts and 3/8 Lockwashers. Make sure ports 1-4 with 7/8 ORBM x ¾ JICF fittings are facing down. Hydraulic Self- Leveling Block Right Hand Bearing Box 86
CAUTION: Escaping hydraulic fluid under pressure can have sufficient force to penetrate skin, causing serious personal injury. Before disconnecting lines, be sure to relieve all pressure. Before applying pressure to system, be sure all connections are tight and that lines, tubes, and hoses are not damaged. Fluid escaping from a very small hole can be almost invisible. Use a piece of cardboard or wood, rather than hands, to search for suspected leaks. If injured by escaping fluid, see a doctor at once. Serious infection or reaction can develop if proper medical treatment is not administered immediately. Cardboard Hydraulic Line Magnifying Glass 21.3.3. To prevent personal injury, work loader valve handle/handles to relieve all hydraulic fluid pressure in lines. 21.3.4. Remove Nylon ties and reposition hose protectors to expose hose connections. 21.3.5. Both hose ends should be marked with identical color ties. 21.3.6. Disconnect loader valve hoses from loader hoses. NOTE: Make sure Orifice Assembly stays with loader valve hose. Loader hoses. Loader Valve hoses. NOTE: If this is a new loader installation, refer to your Mid Mount Coupler Kit or Faster Handle Coupler Kit installation instructions for information on how to connect extension hoses before proceeding with step 21.3.7. 87
21.3.7. The hydraulic self-leveling valve comes pre-assembled from the Factory with the fittings installed and color ties identifying each circuit. 21.3.8. Route valve hoses to selfleveling valve as shown to make sure they will not contact front tires during loader operation. 21.3.9. Connect valve hoses to bottom side of self-leveling valve matching color ties and tighten these fittings. Make sure Orifice Assembly is fitted as shown. Orifice installed in fitting installed on hose marked with Red color tie. Loader Valve Hoses Routed and Connected to Bottom of Self-Leveling Valve. IMPORTANT: Matching nylon tie colors during installation will insure Self Leveling valve will operate correctly. 21.3.10. Connect loader hose ends to top side of self-leveling valve matching color ties and tighten these fittings. IMPORTANT: Matching nylon tie colors during installation will ensure self leveling valve will operate correctly. Hose Protector Nylon Tie 21.3.11. Position hose protector and secure using nylon tie. Existing Loader Hoses Routed and Connected to Top of Self-Leveling Valve. 88
NOTE: In case color ties are missing or circuits are incorrectly marked, photos show correct hose circuits and connections to the Self Level valve. Photo shows bottom side of Self Level valve and valve hoses. PORT 1: Lift Valve Base End. Hose marked with Green Zip Tie PORT 2: Lift Valve Rod End. Hose marked with Blue Zip Tie PORT 3: Attachment Valve Base End. Hose marked with Yellow Zip Tie PORT 4: Attachment Valve Rod End. Hose marked with Red Zip Tie. Make sure Orifice Assembly is attached to this side of the Self Level Block. 1 2 4 3 Photo shows top side of Self Level valve and loader hoses. PORT 5: Lift Cylinder Base End. Hose marked with Green Zip Tie PORT 6: Lift Cylinder Rod End. Hose marked with Blue Zip Tie PORT 7: Attachment Cylinder Base End. Hose marked with Yellow Zip Tie PORT 8: Attachment Cylinder Rod End. Hose marked with Red Zip Tie 5 7 CYLINDER PORT IDENTIFICATION: Attachment Cyl. Base 6 8 Lift Cyl. Rod Lift Cyl. Base Attachment Cyl. Rod Self Level Valve Ports Self Level Valve Ports Circuit Color Tag to Loader Valve to Loader Cylinders 1 5 Lift Base Green 2 6 Lift Rod Blue 3 7 Attachment Base Yellow 4 8 Attachment Rod Red 89
21.3.12. Start the tractor. Raise and lower the loader boom and attachment until all the air is removed from the system and the system responds properly. See your loader operator s manual Initial Loader Operation Section for further information. 21.3.13. Check the tractor hydraulic fluid level and fill, as required. Photo shows Hydraulic Self Leveling Option installed. 90
21.4. SELF LEVEL VALVE COMPONENT FUNCTION (LOAD SENSE / CLOSED CENTER SYSTEMS) (STEEL BLOCK VERSION) 4 5 7 8 3 2 10 10 MODULATOR PLUG: 8 PO CHECK: This reduces the leakage from the bucket cylinders to the lift cylinder. 3 ANTI-CRANING RELIEF: Bypasses oil from the lift rod to tank when raising against fully extended bucket cylinder. 4 ANTI-CAV RELIEF: Provides oil to the rod end of lift cylinders when the bucket is against the rollback stops and the loader is lowered. 5 LOAD MODULATOR SENSE CHECK: Provides signal to modulator during lowering. 2 PLUG: 7 COUNTER BALANCE VALVE: Provides the bucket load holding, (rod end) when unit is loaded to assure bucket does not roll forward. CAUTION: NEVER disassemble this self-leveling valve unless you are a Factory trained mechanic. Failure to follow these instructions will void warranty and could cause the self leveling valve to operate incorrectly. If you need service on this valve return complete unit to your Dealer for service. 91
21.5. SELF LEVEL VALVE COMPONENT FUNCTION (LOAD SENSE / CLOSED CENTER SYSTEMS) (ALUMINUM BLOCK VERSION) 2 3 7 8 8 PO CHECK: This reduces the leakage from the bucket cylinders to the lift cylinder. 3 ANTI-CRANING RELIEF: Bypasses oil from the lift rod to tank when raising against fully extended bucket cylinder. 2 PLUG: 7 COUNTER BALANCE VALVE: Provides the bucket load holding, (rod end) when unit is loaded to assure bucket does not roll forward. CAUTION: NEVER disassemble this self-leveling valve unless you are a Factory trained mechanic. Failure to follow these instructions will void warranty and could cause the self leveling valve to operate incorrectly. If you need service on this valve return complete unit to your Dealer for service. NOTE: Contact factory for Open Center Self Level Valve illustration and installation instructions. 92
22. CYLINDER ASSEMBLY AND DISASSEMBLY 22.1. TILT CYLINDER ASSEMBLY 22.1.1. Lubricate all seals before assembly. 22.1.2. Assemble backup and o-ring onto head. 22.1.3. Assemble u-cup seal in inner groove of head as shown. 22.1.4. Assemble wiper seal flush into the face groove of head. 22.1.5. Lubricate seals and install head over threaded end and onto rod assembly. 22.1.6. Assemble o-ring and backup onto piston. 22.1.7. Apply Loctite #271 onto rod assembly evenly on rod shoulder where shown. 22.1.8. Install piston onto rod and rotate piston to spread Loctite. 22.1.9. Thread hex nut onto rod assembly. Torque to 320 ft. lb. Remove excess Loctite. 22.1.10. Install rod assembly into tube assembly. 22.1.11. Slide the head past the groove in the inner wall of the barrel and install the retaining ring in this groove. Do not slide head o-ring past port hole. 22.1.12. Pull firmly on the rod assembly until head is in place and assemble spacer and retaining ring in front groove of head. 22.2. TILT CYLINDER DISASSEMBLY 22.2.1. Disassembly is in the reverse of assembly. 22.2.2. Examine parts for burrs and scoring and repair as necessary. 22.2.3. Replace all seals. Rod Assembly Loctite Retaining Ring Spacer Inner Retaining Ring Wiper Seal U-Cup Head Backup O-Ring Piston Backup O-Ring Backup Hex Nut Tube Assembly 93
22.3. LIFT CYLINDER ASSEMBLY 22.3.1. Lubricate all seals before assembly. 22.3.2. Assemble wiper seal into face groove of head cap. 22.3.3. Assemble backup and o-ring onto head. 22.3.4. Assemble u-cup seal in inner groove of head as shown. 22.3.5. Lubricate seals and install head over threaded end and onto rod assembly. 22.3.6. Assemble wear ring, yellow o-ring, and backup onto piston. 22.3.7. Apply Loctite #271 onto rod assembly evenly on rod shoulder where shown. 22.3.8. Install piston onto rod and rotate piston to spread Loctite. 22.3.9. Thread hex nut onto rod assembly. Torque to 320 ft. lb. Remove excess Loctite. 22.3.10. Install rod assembly into tube assembly. 22.3.11. Slide the head past the groove in the inner wall of the barrel. Secure head cap by tightening set screw (not shown) and nylon ball. 22.4. LIFT CYLINDER DISASSEMBLY 22.4.1. Disassembly is in the reverse of assembly. 22.4.2. Examine parts for burrs and scoring and repair as necessary. 22.4.3. Replace all seals. Rod Assembly Loctite Wiper Seal Head Cap Nylon Ball U-Cup Head Backup O-Ring Backup O-Ring Piston Wear Ring Hex Nut Tube Assembly 94
23. LEAK DOWN INSPECTION IMPORTANT NOTE: Following leakage test should only be done by a qualified mechanic. 23.1. FRONT END LOADER FIELD LEAK DOWN INSPECTION AND TEST CAUTION: Do not stand, walk, or work under a raised loader tilt or attachment unless it is securely blocked and held in position. CAUTION: Escaping hydraulic fluid under pressure can have sufficient force to penetrate the skin, causing serious personal injury. Do not use HANDS to search for suspected leaks. If injured by escaping fluid, obtain medical treatment immediately. CAUTION: Visually check for hydraulic leaks and broken, missing, or malfunctioning parts. Never use your hand to check for suspected leaks under pressure. Use a piece of cardboard or wood for this purpose. Escaping hydraulic fluid or diesel fuel leaking under pressure can have sufficient force to penetrate the skin and cause serious infection or other personal injury. If injured by leaking fluid, seek medical attention immediately. CAUTION: To prevent personal injury, relieve all pressure before disconnecting fluid lines. CAUTION: Before applying hydraulic pressure, make sure all hydraulic connections are tight and components are in good condition. CAUTION: Be sure to purge all the air from the hydraulic system before attempting to raise or lower this machine. 23.1.1. Make sure all fittings are tight and not leaking. Make sure that there is no external leakage from the valve, fittings or cylinders. If leakage exist repair before doing any of the following test. 23.1.2. Make sure that there is adequate hydraulic fluid in the reservoir. 23.1.3. Install pressure gauge in the circuit you are testing. If testing Lift cylinder leak down install pressure gauge in base and rod end circuit of lift cylinder between the loader valve and the lift cylinder. If testing the tilt cylinder leak down install pressure gauge in rod end circuit of the tilt cylinder between the loader valve and the cylinder. 23.1.4. Photo shows typical pressure gauge setup. Connect 5000 psi min. pressure gauge between loader valve and cylinder circuit you are checking. 23.1.5. Either quick couple or solid mount the pressure gauge in the circuit you are testing. Make sure there are no hydraulic line leaks in system before testing your loader 23.1.6. Cycle or operate the hydraulic system till the control valve is warm to the touch. 95
IMPORTANT: Always check leakage of lift cylinder seals before you test lift circuit loader valve spool leakage. 23.2. LEAKAGE TEST FOR LIFT CYLINDER SEALS (Open Center Systems) NOTE: Clean all parts thoroughly before disassembling any fittings. Cycle or operate the hydraulic system till the control valve is warm to the touch. 23.2.1. Install pressure gauges in the lift cylinder rod and base end circuit. Install pressure gauge in the base and rod end of Lift cylinder 23.2.2. With no load in bucket raise loader to full height and then hold pressure on unit for a few seconds. Read Base end pressure it should equal tractor hydraulic system pressure. Leave unit raised for a 5 to 10 minutes and then read rod end pressure. Rod end pressure should read zero. If pressure starts to increase in rod end and or base end of cylinder. Lower loader and repair or replace damaged lift cylinder. If rod end pressure does not increase no cylinder repair is required. This test can also be done with some load in bucket and with the loader only raised slightly off of ground. This will increase the pressure in the cylinder and check the seals at a higher pressure. NOTE: Make sure that the pressure in the rod end circuit is zero or very low when starting this test. OPTIONAL WAY TO CHECK LIFT CYLINDER SEAL LEAKAGE ON OPEN CENTER SYSTEMS. (FOLLOW THESE INSTRUCTIONS IF CHECKING A CLOSED CENTER OR LOAD SENSE SYSTEM) 23.2.3. Remove lift cylinder rod end hose. Install tee fitting with a high pressure ball valve and drain hose assembled to the rod end of the lift cylinder circuit. Insert end of drain hose into a drain pan. Tee Fitting. High Pressure Ball Valve. Drain Hose. Lift Cylinder Rod End Hose. 96
High Pressure Ball Valve and fittings installed on a loader. Lift Cylinder Rod End Hose. Tee Fitting. High Pressure Ball Valve. Drain Hose. 23.2.4. Install a pressure gauge in the lift circuit base end. 23.2.5. With high pressure ball valve in off position, place a load in the bucket and raise loader to some height. The load in the bucket and the lift height should be such that it induces a target reference pressure of 1500 psi in the cylinders. 23.2.6. Disconnect rod end lift cylinder circuit from loader valve by disconnecting quick coupler. If quick coupler does not exist install one in line before proceeding with this test. 23.2.7. Slowly open high pressure ball valve directing drain hose to drain pan. Note: If oil flows out of drain hose and loader lowers, cylinders will need to be repaired or replaced. Note: If no flow is seen, no repair of lift cylinder is required. 23.2.8. Reconnect rod end of lift cylinder circuit by reconnecting quick coupler. Base end Of lift cylinder. 23.2.9. Lower loader to ground. Relieve pressure and remove high pressure ball valve and tee fitting. Re-connect loader hose and fitting. Rod end of lift cylinder. 97
IMPORTANT: Always check leakage of lift cylinder seals before you test lift circuit loader valve spool leakage. 23.3. LEAKAGE TEST FOR LIFT CIRCUIT LOADER VALVE SPOOL NOTE: Clean all parts thoroughly before disassembling any fittings. Cycle or operate the hydraulic system till the control valve is warm to the touch. 23.3.1. Install a pressure gauge in the lift circuit base end. 23.3.2. Cycle the lift cylinders to full extend and then full retract a minimum of 5 times to expel any air in the system. The cylinders should be cycled with the engine near maximum rpm. The bucket should not be loaded during cycling. 23.3.3. Place a load in the bucket and raise to some height. The load in the bucket and the lift height should be such that it induces a target pressure of 1000 psi in the lift cylinder base end circuit. 23.3.4. Disconnect rod end lift cylinder circuit from loader valve by disconnecting quick coupler. If quick coupler does not exist install one in line before proceeding with this test. 23.3.5. Use a permanent marker and mark a line on the cylinder rod 3 inches away from the tube end of the cylinder. (See photo on following page) 23.3.6. After a 10 minute period of time measure the distance between the line and the end of the cylinder and subtract the distance from 3 inches to determine how much the cylinder has retracted. 23.3.7. Refer to Leak down Rate chart in these instructions for the acceptable leak down rate for your specific cylinder sizes. Step A: Mark cylinder rod with a permanent marker 3 from cylinder end. Step B: Then measure the distance between end of cylinder and mark after a 10 minute period of time. Rod End of Lift Cylinder Initial Mark on Lift Cylinder Rod 3 from end of cylinder. 23.4. LEAKAGE TEST FOR TILT OR BUCKET CYLINDER, SEALS NOTE: Clean all parts thoroughly before disassembling any fittings. Cycle or operate the hydraulic system till the control valve is warm to the touch. 23.4.1. Install a pressure gauge in the tilt circuit rod end. 23.4.2. Cycle the tilt cylinders to full extend and then full retract a minimum of 5 times to expel any air in the system. The cylinders should be cycled with the engine near maximum rpm. The bucket should not be loaded during cycling. Use regen function of valve (If equipped) when expelling air from the tilt circuit. 23.4.3. Lower the loader to the ground, relieve hydraulic pressure and disconnect rod end tilt cylinder circuit from loader valve by disconnecting quick coupler. If quick coupler does not exist install one in line before proceeding with this test. 98
23.4.4. Place a load in the bucket and raise the boom slightly off the ground. The load should be such that it induces a target reference pressure between 1000 to 1500 psi in the cylinders refer to pressure gauge previously installed. 23.4.5. Place a mark using a permanent marker on the cylinder rod at the end of the cylinder. NOTE: Never mark the cylinder until the weight has been applied to the loader and your pressure gauge reads 1000 to 1500 psi. Measure from end of cylinder after 10 minutes. Initial Mark on Tilt Cylinder Rod 23.4.6. After a 10 minute period of time measure the distance from the end of cylinder to the mark. 23.4.7. If this distance has increased then some internal leakage is present. If excessive leakage is found cylinder will need to be replaced or repaired. 23.4.8. Lower the loader and bucket to the ground, and re-connect the rod end hose. 23.5. TILT OR BUCKET CYLINDER VALVE SPOOL LEAKAGE NOTE: Clean all parts thoroughly before disassembling any fittings. Cycle or operate the hydraulic system till the control valve is warm to the touch. 23.5.1. Install a pressure gauge in the tilt circuit rod end 23.5.2. Cycle the tilt cylinders to full extend and then full retract a minimum of 5 times to expel any air in the system. The cylinders should be cycled with the engine near maximum rpm. The bucket should not be loaded during cycling. Use regen function of valve (if your loader is equipped with it) when expelling air from the tilt circuit. 23.5.3. With the bucket lip approximately level and on the ground, place a load in the bucket and raise the boom slightly off the ground. The load should be such that it induces a pressure of 1000 psi in the cylinder rod end. Refer to pressure gauge previously installed. Place a mark using permanent marker on the cylinder rod at the end of the cylinder after load has been applied. (Refer to previous page photo.) After a 10 minute period of time measure the distance from the cylinder end to the mark to determine how much the cylinder has extended. Then refer to Leak down Rate Chart in these instructions for the acceptable leak down rate for your specific cylinder sizes. 23.5.4. If valve leak down rate is found to be more than allowable rate contact factory before returning valve. IMPORTANT: These tests must be done very accurately to make sure the results are accurate. Any valve that is returned and not found to exceed the manufacture's allowable leakage rate will not be covered under warranty. IMPORTANT: Contamination in hydraulic system will cause damage to the loader valve which will increase valve spool leakage rates. If a returned valve is found to be damaged because of contamination it will not be covered under warranty. Keep your hydraulic system maintained at all times and make sure you clean all fittings and etc. when disconnecting or connecting hydraulic fittings. 99
23.6. ACCEPTABLE LIFT CYLINDER LEAK DOWN RATES IMPORTANT: Always double check your cylinder size to make sure it matches the information below. 23.6.1. Following are the allowable leak down rates specific to your loader lift cylinder sizes. If your loader is equipped with a load sense system acceptable leakage rates can be 30% higher than shown in this chart. Lift Cylinder Bore Size Lift Cylinder Outside Diameter Leak Down Rate per 10 minutes Loader Model Numbers 1-1/2" 1-7/8" 1.72 ML102 1-3/4" 2-1/8" 1.27 ML25, ML104, ML105, ML106, ML108, ML108H 2 2-3/8.97 ML110, ML111, ML112, ML114 2-1/4 2-5/8.76 KL1470, KL1470S 2-1/2 2-7/8.62 ML230, ML260, KL1590, KL1590S 2-3/4 3-1/8.51 ML245, ML255 3 3-3/8.43 ML170, ML264, ML265, ML270, ML275, KL1730 3-1/4 3-5/8.37 1660 3-1/2 3-7/8.32 1750,1760, 1860 23.7. ACCEPTABLE TILT OR BUCKET CYLINDER LEAK DOWN RATES IMPORTANT: Always double check your cylinder size to make sure it matches the information below. 23.7.1. Following are the allowable leak down rates specific to your tilt cylinder sizes. If your loader is equipped with a load sense system leakage rate can be 30% higher than shown in this chart. Tilt Cylinder Bore Size Tilt Cylinder Outside Diameter Tilt Cylinder Rod Diameter Leak Down Rate per 10 minutes Loader Model Numbers 1-1/2 1-7/8 1 3.13 ML102 1-3/4 2-1/8 1 1.9 ML25, ML104, ML105, ML106, ML108, ML108H, ML110, ML111 2 2-3/8 1-1/4 1.6 ML112, ML114, ML230, ML260, KL1470 2-1/4 2-5/8 1-1/4 1.11 ML245, KL1470S, KL1590, KL1595 2-1/2 2-7/8 1-1/4.83 ML264, KL1595S, KL1730 2-1/2 2-7/8 1-1/2.97 ML170, ML255, ML265, ML270, ML275 2-3/4 3-1/8 1-1/2.73 1660,1760 3 3-3/8 1-3/4.65 1750 3-1/4 3-5/8 1-3/4.51 1860 100
24. TROUBLE SHOOTING PROCEDURES This Trouble Shooting Chart is provided for reference to possible loader operational problems. Determine the problem that best describes the operational problem being experienced and eliminate the possible causes as listed by following the correction procedures. For further assistance contact your dealer. 24.1. TROUBLE SHOOTING FOR ALL LOADERS PROBLEM POSSIBLE CAUSE CORRECTION Lift and Tilt Cylinders inoperative Low hydraulic fluid level. Check and replenish hydraulic fluid. Lift and/or tilt cylinders operate in wrong direction relative to valve handle position Attachment will dump but will not rollback (Only if your loader valve is equipped with regen) Hydraulic hoses connected improperly. Hydraulic Hoses to/from loader valve blocked. Loader valve or tractor main relief valve stuck open. Low system pressure supplied from hydraulic pump. Loader valve linkage broken. Quick disconnect coupler(s) are not fully connected. Hydraulic hose or tubeline blockage. Cylinder piston assembly defective (not sealing). Loader valve blockage. Hydraulic hoses connected incorrectly. Hydraulic circuit connected incorrectly. 101 Check and correct hydraulic hose connections Check for damaged (kinked) hoses, etc. Check system pressure. Repair or replace relief valve. Check system pressure. Repair or replace pump. Inspect. Repair as required. Check coupler connections. Replace coupler(s) if necessary. Check all hoses and tubes for leaks, damage, or restrictions. Replace damaged or restricted hoses or tube lines. Check cylinders for internal leakage as described in service section under cylinder leakage tests. Inspect for blockage. Disassemble valve if necessary. Correct hydraulic hose connections. Refer to plumbing diagram and correct hose connections. Slow or erratic lift Low hydraulic fluid level. Check and replenish hydraulic fluid. Cold hydraulic fluid. Engine R.P.M. too slow (hydraulic pump R.P.M. too slow). Excessive weight in bucket. Material weight exceeds maximum specified loader capacity. Loader valve linkage binding/defective. Aeration of hydraulic fluid Allow hydraulic system to warm up to operating temperature. Increase engine speed to obtain satisfactory loader operation. Reduce material load. Check loader valve linkage and repair if worn/defective. Refer to "Aeration of Hydraulic Fluid".
PROBLEM POSSIBLE CAUSE CORRECTION Quick disconnect coupler restriction or coupler. Hydraulic hose or tubeline restriction (hoses/tubeline kinked or pinched). Lift cylinder piston assembly leakage. Relief valve erratic or set below specifications. Loader valve leaking internally. (Bypassing fluid within valve.) Inadequate hydraulic pump capacity. Check coupler connections. Repair or replace. Check hoses and tubelines for evidence of restriction. Check cylinders for leakage. Repair as needed. Check and reset relief valve setting as needed. Replace loader valve and recheck operation. Refer to "Hydraulic Pump Capacity Inadequate". Inadequate lifting capacity Engine R.P.M. too slow. Increase engine R.P.M. Aeration of Hydraulic Fluid (generally indicated by foamy appearance of fluid). Excessive load material weight exceeds specified loader capacity. Relief valve setting below specifications. Lift cylinder piston assembly leakage. Loader valve leaking internally. Hydraulic pump defective. Low hydraulic fluid level. Air leaking into suction side of hydraulic pump. Hydraulic fluid foaming due to improper hydraulic oil usage. Reduce Load. Check and reset relief valve setting as needed. Check cylinders for leakage. Repair as needed. Replace loader valve and recheck operation. Refer to "Hydraulic Pump Capacity Inadequate". Check and refill hydraulic system to proper level. Check for loose or defective connections between reservoir and hydraulic pump. Refer to Tractor Operator s Manual and replace hydraulic oil using recommended hydraulic oil. System relief valve squeals. Cold Hydraulic Fluid. Allow hydraulic fluid to warm up to operating temperature. Loader drops with loader valve spool in "Centered" position (no external oil leakage evident.) Excessive load in bucket. Weight exceeds specified loader capacity. Relief valve setting below specifications. Hydraulic hose, tubeline, or quick disconnect coupler restriction. Cylinder Piston assembly leakage. Loader valve internal leakage. Reduce load. Check and reset valve setting as needed. Check for evidence of restriction in hydraulic oil flow. Repair or replace defective components. Check cylinders for leakage. Replace loader valve and recheck. 102
PROBLEM POSSIBLE CAUSE CORRECTION Loader valve spool(s) will not return to centered position. Loader bucket moves freely after dumping load Note: A gradual drop over an extended period of time is a normal condition. Valve handle linkage binding. Loader valve spool centering is broken. Loader valve spool binding in valve body spool bore. Tilt cylinder cavitation has occurred. 103 Run Leakage Test to see if hydraulic components meet specification. Determine origin of binding and repair. Replace centering spring. Disassemble valve for inspection and repair. Use of regen function (if equipped) while dumping load will eliminate problem. Contact Factory for optional orifice sizes. External hydraulic fluid leakage. Loose hydraulic connection. Tighten loose connections. Hydraulic pump capacity inadequate. Lift cylinder rods bend when lift cylinders extended. Bucket cutting edge wear is uneven side to side Bucket cutting edge wear rate is excessive. (Wear rate is even across full width of bucket). Defective hydraulic hose, tubeline, adapter fitting or adapter fitting o- ring. Loader valve o-rings defective. Loader valve spool or body damaged or worn. Cylinder rod packing set leakage. Cold hydraulic fluid. Engine R.P.M. too slow. Low hydraulic fluid supply. Hydraulic hose restriction. Hydraulic pump defective. Excessive shock load on lift cylinders during transport. Bucket is not level to ground. Incorrect operational practices. Excessive down pressure placed on bucket when used on hard abrasive surfaces. Bucket wear pads worn. Note: Extensive use of bucket on concrete or asphalt surfaces will accelerate wear rate of bucket cutting edge. Check for origin of oil leak and replace defective part. Replace defective o-rings. Replace loader valve. Check cylinders for leakage. Repair as needed. Allow hydraulic fluid to warm up to operating temperature. Increase engine R.P.M. Refer to Tractor Operator s Manual for service recommendations. Check for evidence of restriction in hydraulic hoses. Refer to Tractor Operator s manual for recommended service procedures. Replace hydraulic pump if determined to be defective. Replace defective parts. Review and observe proper and safe operational practices. Check rear tire inflation and adjust to level bucket to ground. Refer to operation scraping section for correct operating procedures. Utilize float position. Replace wear pads.
PROBLEM POSSIBLE CAUSE CORRECTION Loader is slow and/or will not Hydraulic oil too heavy. Change to proper oil. dump. Loader chatters or vibrates when raising or lowering. Oil filter plugged. Hydraulic pump worn. Oil line restricted or leaking. Loader valve does not shift properly. Cylinder leaks internally. Faulty valve. Air in hydraulic system. Oil level too low. Clean or replace filter. Repair or replace pump. Check all hoses and tubes for leaks, damage, or restrictions. Replace damaged or restricted hoses or tube lines. Inspect clean, repair, or replace valve. Replace seals. Repair or replace valve. Cycle lift cylinders and tilt cylinders. Add oil as required. Slow leakdown. Worn loader valve. Have authorized KMW dealer replace valve. Attachment will dump but will not rollback Worn cylinder piston seals. Hydraulic circuit connected incorrectly. Have authorized KMW dealer replace seals. Check that loader valve is connected to tilt cylinder correctly if valve is equipped with regen funtion. 24.2. TROUBLE SHOOTING OPTIONAL LOADER VALVE If your loader/tractor combination is equipped with an optional KMW Cable Controlled Loader valve and unit reacts in the following manner. PROBLEM POSSIBLE CAUSE CORRECTION Nothing happens when handle switch is activated Tractor switch is not on. Turn tractor switch on. If you have 12 volts at solenoid valve but valve does not function Power circuit is not connected. Switch does not have 12 volts. Solenoid valve does not have 12 volts when switch is activated. Spool is sticking. Connect to tractor power supply that is only activated when tractor switch is on. Trace circuit and find cause. If not, check switch by jumping terminal wires on switch in handle. If 12 volts are at solenoid valve, replace switch Push in on each side of valve spool to free up spool as shown in installation instructions included with your valve kit. Contamination in hydraulic oil causes spool to stick. Replace oil and filter. Solenoid valve section is damaged. Replace solenoid valve section. 104
24.3. TROUBLE SHOOTING OPTIONAL COMFORT DRIVE PROBLEM POSSIBLE CAUSE CORRECTION Comfort drive does not activate. Comfort drive does not work properly Turn on comfort drive and check to see if 12 volts are at solenoid. Solenoid not properly grounded Fuse Wire damaged or cut. Switch does not have 12 volts. Tractor switch is not on. Power circuit not connected. Pre-charge pressure is not correct Leak in fluid or gas side of accumulator Circuits not connected correctly 24.4. TROUBLE SHOOTING OPTIONAL SELF LEVELING If 12 volts are not available, inspect and repair as follows. If not properly grounded, repair. replace if required If damaged repair or replace Trace circuit and find cause. Turn tractor switch on. PROBLEM POSSIBLE CAUSE CORRECTION Bucket does not maintain level while raising at high idle. Bucket does not maintain level while lowering at high idle. Flow divider spool stuck. Raise counterbalance valve stuck. Flow divider spool stuck. (Open Center system only) Load drop modulator valve stuck. Connect to tractor power supply that is only activated when tractor switch is on. Check pre-charge pressure of each end of accumulator and correct as required. Repair and replace accumulator seals Trace circuits and make sure large end of accumulator is connected to base end of lift cylinder. *Check flow divider spool for free operation. (Check for contamination.) *Remove and check for contamination. *Check flow divider cartridge for free operation. *Remove and check for contamination. (Spool should move freely in bore.) Bucket/Attachment rolls forward while handling heavy load. Excessive bucket drift in the dump direction. Counterbalance Valve open. Bad bucket cylinder seal. Raise counterbalance valve stuck. Anti-Cavitation relief malfunction. Excessive loader control valve bucket spool port leakage. Reduce load being handled. Rollback load before operating loader. Repack cylinder. *Remove and check for contamination. *Check Anti-Cavitation valve cartridge. Remove and check for contamination or replace. Contact factory for adjustment information. Check with Factory on acceptable valve spool leakage rate. Replace if required. 105
PROBLEM POSSIBLE CAUSE CORRECTION Bucket moves freely when putting down pressure on cutting edge. Bucket does not level down while lowering. Loader bounces with lowering load. Bucket does not maintain Level while raising Bucket does not maintain Level while lowering on Open Center system. Bucket does not maintain Level while lowering on Load Sense and Closed Center systems. Self leveling function is delayed after lowering loader. Self-Leveling does not operate after initial hook-up. Float position of loader does not operate. Pilot operated check is not closing (cartridge plus pilot piston). Too large of load. Starting with load rolled forward. Low hydraulic flow. Bucket self leveling is designed to work optimally at high RPM. Loader valve lift spool not fully stroked. Loader valve lift spool is fully stroked. Loader being lowered with attachment against the rollback stops. Circuit not hooked up correctly. Check if installed on Open Center Valve. *Remove and check for contamination. Replace if required. Reduce load. Rollback attachment slightly before lowering loader. Increase tractor RPM to increase hydraulic flow. Run engine at med. To high RPM. Fully stroke the valve spool. Feather the loader lift spool. Lowering loader with bucket rolled slightly forward will reduce delay. Check that circuits are hooked up as follows. If installed on Open Center System float will not operate. Self Level Valve Ports Self Level Valve Ports Circuit Color Tag to Loader Valve to Loader Cylinders 1 5 Lift Base Green 2 6 Lift Rod Blue 3 7 Tilt Base Yellow 4 8 Tilt Rod Red *NOTE: This service must only be accomplished by an Authorized KMW Service Person. Failure to follow these instructions will void warranty. 106
25. TORQUE CHART 107
26. NOTES 108
27. PARTS MANUAL Illustrations All parts are illustrated in "exploded views" which show the individual parts in their normal relationship to each other. Reference numbers are used in the illustrations. These numbers correspond to those in the "Reference Number" column and are followed by the quantity required and description. Directional Reference Right hand (RH) and left hand (LH) sides are determined by standing at the rear of the unit and facing in the direction of forward travel. Parts Order Orders must give the complete description, correct part number, the total amount required, the product model, all the necessary serial numbers, the method of shipment and the shipping address. Parts Breakdown Contact your local KMW dealer for service parts break down. 109
28. DECALS & MANUALS 1 3 2 4 5 6 7 110
DECALS & MANUALS Reference Description Part No. Qty. 1...Decal Warning...0595-3084...1 2...Decal Warning...0595-3001...1 3...Decal Danger...0595-3002...1 4...Decal Warning...0595-3003...1 5...Decal Warning...0595-3004...1 6...Decal KMW...0595-3088...2...Decal KMW...0595-3093...1 7...Decal 1860...0595-3098...2 8...Decal Important...0595-3087...2 10...Manual, Operator & Parts...2503-1042...1 11...Decal Caution...0595-3086...2 14...Decal Solenoid Third Function...0595-2263...1 11 8 14 10 111
DECALS & MANUALS Reference Description Part No. Qty. 21...Decal Caution...0595-2190...1 22...Decal Caution...0595-3054...1 23...Decal Danger...0595-3050...1 24...Decal Warning...0595-3051...1 25...Decal Warning...0595-3052...1 26...Decal Caution...0595-3053...1 28...Decal Warning Accumulator...0595-3085...1 25 22 24 23 21 26 28 112