Electronic Service Manuals This electronic document is provided as a service to our customers. We do not create the contents of the information contained in this document. Should you have detailed questions pertaining to the information contained in this document, you may contact Michco, or the manufacturer which provided the original information in this electronic deliverable. Michco s only part in this electronic deliverable was the electronic assembly process. By providing this manual on line we are not guaranteeing parts availability. You may contact Michco through the following methods: Phone (517) 484-9312 or (800) 331-3339 2011 N. High St. -- Lansing, Michigan -- 48906 Fax: (517) 484-9836 Email: CustServe@Michco.com Web site: www.michco.com Parts Web site: www.floormachineparts.com Order Parts on Line at: www.floormachineparts.com Directly to Parts & Service: By Email: Shop@Michco.com By Fax: (517) 702-2041 By Voice: Use numbers above. Serving the Cleaning Industry Since 1922 Notice: All copyrighted material remains property of original owners, all trademarks are property of respective owners. Manuals are subject to Manufacturer s reproduction limitations. Originals or reproductions were provided by manufacturers through a request. We make no warranty as to the correctness of information provided in this document and you assume all risk. By placing these manuals on line we are not declaring our corporation to be an manufacturer authorized dealer or provider, please check our web site for authorized manufacturers we represent.
K4E MM010
This manual is furnished with each new TENNANT Model K4E. It provides necessary operating and preventive maintenance instructions. Read this manual completely and understand the machine before operating or servicing it. This manual covers all machine variations and standard accessories. The instruction portion of the manual consists of the Specification, Operation, Maintenance, and Appendix sections. The parts portion consists of the Standard Model Parts; Options; and Cross Reference sections. All right side and left side references to the machine are determined by facing the direction of forward travel. All hardware considered to be of a common nature or locally available has been omitted from the parts sections. Be aware that this machine may contain metric hardware. Make sure you use equivalent hardware when replacement becomes necessary. This machine will provide excellent service. However, the best results will be obtained at minimum costs if: D The machine is operated with reasonable care. D The machine is maintained regularly -- per the maintenance instructions provided. D The machine is maintained with Tennant Company supplied or equivalent parts. Parts and supplies may be ordered by phone or mail from any Tennant Company parts and service center, distributor, or from any of the Tennant Company subsidiaries. Before ordering parts or supplies, be sure to have your machine model number and serial number handy. Fill out the data block below for future reference. The telephone numbers, telex numbers, mailing addresses, and locations of those outlets are listed in the Customer Documents section of the manual. Machine Serial Number -- Engine Serial Number -- Sales Representative -- Customer Number -- Date of Installation -- Manual Number -- MM010 Revision: 10 Published: 8--92 MACHINE DATA Please fill out at time of installation. Trademark Registered in: Austria, Benelux, Denmark, England, France, Germany, Italy, Spain, Switzerland, United States, Argentina, Australia, Canada, Japan, Mexico, Sweden, by TENNANT COMPANY, Minneapolis, Minnesota, U.S.A. Copyright 1961, 1966, 1974, 1976, 1983, 1985, 1988, 1990, 1991, 1992 Tennant Company, Printed in U.S.A.
SAFETY PRECAUTIONS GENERAL INFORMATION The following symbols are used throughout this manual as indicated in their descriptions: WARNING: To warn of hazards or unsafe practices which could result in severe personal injury or death. FOR SAFETY: To identify actions which must be followed for safe operation of equipment. The following information signals potentially dangerous conditions to the operator or equipment. Read this manual carefully. Know when these conditions can exist. Locate all safety devices on the machine. Then, take necessary steps to train machine operating personnel. Report machine damage or faulty operation immediately. Do not use the machine if it is not in proper operating condition. FOR SAFETY: 1. Do Not Operate Machine: - Unless Trained And Authorized. - Unless Operation Manual Is Read And Understood. - In Flammable Or Explosive Areas Unless Modified For Use In Those Areas. 2. Before Starting Machine: - Make Sure All Safety Devices Are In Place And Operate Properly. 3. When Using Machine: - Go Slow On Grades And Slippery Surfaces. - Use Care When Backing Machine. - Do Not Carry Riders On Machine. - Always Follow Safety And Traffic Rules. 4. Before Leaving Or Servicing Machine: - Stop On Level Surface. - Turn Off Machine. 5. When Servicing Machine: - Avoid Moving Parts. Do Not Wear Loose Jackets, Shirts, Or Sleeves When Working On Machine. - Use Hoist Or Jack Of Adequate Capacity To Lift Machine. - Wear Eye And Ear Protection When Using Pressurized Air Or Water. - Use TENNANT Supplied Or Equivalent Replacement Parts. WARNING: Hazardous Voltage. Shock Or Electrocution Can Result. Unplug Power Cord Before Working On Machine. WARNING: Machine Can Emit Excessive Noise. Consult With Your Regulatory Agency For Exposure Limits. Hearing Loss Can Result. Wear Hearing Protection. WARNING: Tool Generates Flying Debris. Severe Personal Injury Can Result. Wear Eye Protection. WARNING: Machine Generates Excessive Dust. Severe Respiratory Damage Can Result. Consult With Your Regulatory Agency For Limits. Wear Breathing Protection. K4E MM010 (3-91) i
GENERAL INFORMATION ii K4E MM010 (2-88)
GENERAL INFORMATION CONTENTS Page GENERAL INFORMATION................. i SAFETY PRECAUTIONS............... i SPECIFICATIONS........................ 1-1 MACHINE SPECIFICATIONS............ 1-3 POWER TYPE...................... 1-3 POWER TRAIN..................... 1-3 SUSPENSION SYSTEM............. 1-3 GENERAL MACHINE DIMENSIONS -- CAPACITIES...... 1-3 MACHINE WEIGHT................. 1-3 OPERATION............................. 2-1 PREPARATION FOR OPERATION....... 2-3 AFTER UNCRATING AND BEFORE OPERATING MACHINE:.......... 2-3 OPERATION AND CONTROLS.......... 2-4 MACHINE COMPONENTS........... 2-4 CONTROLS AND INSTRUMENTS.... 2-5 STARTING AND REVERSE SWITCH.. 2-6 HANDLE ANGLE ADJUSTMENT KNOB 2-6 REVERSE LEVER................... 2-6 VACUUM LEVER.................... 2-6 FILTER SHAKER LEVER............. 2-6 FRONT WHEEL LEVER.............. 2-7 MACHINE OPERATION................. 2-8 TO START MACHINE................ 2-8 TO SCARIFY....................... 2-8 TO STOP MACHINE................. 2-8 MAINTENANCE.......................... 3-1 RECOMMENDED FIRST 100--HOUR MACHINE INSPECTION............. 3-3 MAINTENANCE CHART................ 3-4 LUBRICATION......................... 3-6 WHEELS........................... 3-6 FRONT WHEEL CONTROL ARM..... 3-6 BELT IDLER ASSEMBLY............. 3-6 DRUM AND SHAFT ASSEMBLY...... 3-6 REVERSE DRIVE HOUSING......... 3-6 BEARING HOUSING ASSEMBLY..... 3-6 DRIVE CHAINS..................... 3-6 ELECTRICAL SYSTEM................. 3-7 ELECTRICAL DIAGRAM............. 3-7 ELECTRICAL DIAGRAM............. 3-8 BELTS AND CHAINS................... 3-9 DRUM AND SHAFT ASSEMBLY DRIVE BELT..................... 3-9 REVERSE PROPELLING DRIVE BELT 3-9 VACUUM FAN BELT................. 3-9 DRIVE CHAINS..................... 3-9 K4E MM010 (3-91) Page TOOLS............................... 3-10 TO MOUNT MACHINE TOOLS........ 3-10 STEEL WOOL ROLL OR FIBER BRUSH................ 3-10 SANDING DRUM................. 3-11 WIRE BRUSH OR REVOr--TOOL... 3-12 REVOr--TOOLS..................... 3-12 ORDERING REVOr--TOOL ASSEMBLIES................. 3-12 CUTTER SPACING............... 3-13 CUTTER BUNDLE................ 3-13 BUNDLE PATTERN............... 3-13 TYPES OF CUTTERS............ 3-14 LEVELING THE TOOL DRIVE..... 3-15 DEBRIS HOPPER AND DUST FILTER.... 3-16 DEBRIS HOPPER................... 3-16 DUST FILTER....................... 3-16 APPENDIX............................... 4-1 HARDWARE INFORMATION............ 4-3 STANDARD BOLT TORQUE CHART..... 4-3 METRIC BOLT TORQUE CHART........ 4-3 BOLT IDENTIFICATION................. 4-3 THREAD SEALANT AND LOCKING COMPOUNDS...................... 4-3 STANDARD MODEL PARTS............... 5-1 ORDERING REPAIR PARTS............ 5-3 Fig. 1 -- Recommended General Maintenance Items........... 5-4 Fig. 2 -- Machine Tool Group............. 5-5 Fig. 3 -- REVOr--Tool Assemblies......... 5-6 Fig. 4 -- Main Frame Group.............. 5-8 Fig. 5 -- Propelling Drive Group........... 5-10 Fig. 6 -- Operating Control Group......... 5-12 Fig. 7 -- Tool Drive Group................ 5-14 Fig. 8 -- Filter Group.................... 5-16 OPTIONS.............................. 6-1 ORDERING REPAIR PARTS............ 6-3 Fig. 1 -- Vacuum Bag Filter Kit............ 6-4 Fig. 2 -- Dust Control Skirt Kit............ 6-6 Fig. 3 -- Arbor Adaptor Kit................ 6-7 CROSS REFERENCE..................... 7-1 PART NUMBER TO PAGE NUMBER CROSS REFERENCE LIST............. 7-3 iii
GENERAL INFORMATION Page CUSTOMER DOCUMENTS................ 8-1 TENNANT COMPANY LIMITED WARRANTY........................ 8-3 TENNANT COMPANY, TENNANT COMPANY SUBSIDIARIES, AND MAJOR PARTS AND SERVICE LOCATIONS DIRECTORY.. 8-5 iv K4E MM010 (3-91)
CONTENTS SPECIFICATIONS SECTION 1 Page MACHINE SPECIFICATIONS............... 1-3 POWER TYPE......................... 1-3 POWER TRAIN........................ 1-3 SUSPENSION SYSTEM................ 1-3 GENERAL MACHINE DIMENSIONS -- CAPACITIES......... 1-3 MACHINE WEIGHT.................... 1-3 K4E MM010 (2-90) 1-1
SPECIFICATIONS 1-2 K4E MM010 (2-88)
MACHINE SPECIFICATIONS SPECIFICATIONS POWER TYPE Electric motor -- 200 V or 440 V, 3 phase, 60 cycle AC, 3450 rpm 2.5 hp, 220 V, 440 V, or 550 V, 3 phase, 60 cycle AC, 2 speed motor POWER TRAIN Tool -- belt driven Propelling (reverse only) -- Chain driven rear wheels SUSPENSION SYSTEM Front -- 6 x 2.00 zero pressure (1) Rear -- 8 x 1.63 zero pressure (2) GENERAL MACHINE DIMENSIONS -- CAPACITIES Length -- 56 in (1422 mm) Width -- 24 in (610 mm) Height -- 37 in (940 mm) Scrapping path width -- 16 in (405 mm) Hopper capacity -- 75 lb (35 kg) Dust filter -- 12.5 sq ft (1.16 m@) MACHINE WEIGHT Net weight -- 425 lb (193 kg) GVWR -- 475 lb (215 kg) K4E MM010 (2-88) 1-3
SPECIFICATIONS 1-4 K4E MM010 (2-88)
CONTENTS OPERATION SECTION 2 Page PREPARATION FOR OPERATION....... 2-3 AFTER UNCRATING AND BEFORE OPERATING MACHINE:............. 2-3 OPERATION AND CONTROLS.......... 2-4 MACHINE COMPONENTS........... 2-4 CONTROLS AND INSTRUMENTS.... 2-5 STARTING AND REVERSE SWITCH.. 2-6 HANDLE ANGLE ADJUSTMENT KNOB 2-6 REVERSE LEVER................... 2-6 VACUUM LEVER.................... 2-6 FILTER SHAKER LEVER............. 2-6 FRONT WHEEL LEVER............. 2-7 MACHINE OPERATION................. 2-8 TO START MACHINE................ 2-8 TO SCARIFY....................... 2-8 TO STOP MACHINE................. 2-8 K4E MM010 (2-90) 2-1
OPERATION 2-2 K4E MM010 (2-88)
PREPARATION FOR OPERATION OPERATION AFTER UNCRATING AND BEFORE OPERATING MACHINE: 1. Check the machine for shipping damage. 2. Read the manual carefully before operating or servicing the machine. FOR SAFETY: Do Not Operate The Machine, Unless Operation Manual Is Read And Understood. 3. The machine has been configured for 220 V or 440 V system. The 220 V machine has the plug provided. The 440 V machine does not have a plug provided. 4. Do not plug the line cord into an electrical outlet until you are ready to scraify. 5. Lower the front supporting wheel to the floor. 6. See Tools in the Maintenance section to install the machine tool appropriate for the job. 7. Select low or high speed as recommended for the tool. 8. Adjust the handle to a comfortable operating position. Assemble the appropriate plug to the line cord for the 440 V machine. Plug type and wiring may vary due to different type of 440 V receptacles. Check local electrical codes first. ATTENTION: Do not connect a 440 V machine to a 220 V system, or a 220 V machine to a 440 V system. Connecting the machine to the wrong voltage system may result in damage to the machine. A GR D X Z B Y C 04669 WIRING PATTERN FOR STANDARD 440 V PLUG INSTALLATION A. Green B. Red C. White D. Black K4E MM010 (3-91) 2-3
OPERATION OPERATION AND CONTROLS J H A C G B D I K F E MACHINE COMPONENTS 04667 04668 A. Handle G. Handle Adjustment Knob B. Filter Box Cover H. Vacuum Lever C. Filter Shaker Lever I. Hopper D. Rear Wheel J. Reverse Lever E. Tool Access Door K. Line Cord F. Front Wheel 2-4 K4E MM010 (2-88)
OPERATION A C D B E F CONTROLS AND INSTRUMENTS 04667 A. Starting and Reverse Switch D. Vacuum Lever B. Handle Angle Adjustment Knob E. Filter Shaker Lever C. Reverse Lever F. Front Wheel Lever K4E MM010 (2-88) 2-5
OPERATION STARTING AND REVERSE SWITCH The starting and reverse switch has run and off positions. Be sure the switch is in the off position before plugging the machine into an outlet. The direction of motor rotation depends on the polarization of the current at the outlet. To change rotation, return the switch to the off position. Allow the motor to slow to less than half speed. Then move the switch to the opposite side. VACUUM LEVER The vacuum control lever controls the air flow to the filter system. To turn the air flow off, turn the lever to the off position. To turn the air flow on, turn the lever to the on position. A HANDLE ANGLE ADJUSTMENT KNOB The handle angle adjustment knob adjusts the angle of the handle. Loosen the adjustment knob and move the handle forward or backward to the most comfortable operating position. Tighten the adjustment knob to keep the handle adjusted at the angle wanted. A. Vacuum Lever VACUUM LEVER 04104 A FILTER SHAKER LEVER The filter shaker lever is used to clean the dust filter. To shake the dust filter, move the lever back and forth. HANDLE ANGLE ADJUSTMENT KNOB 04104 A. Handle Adjustment Knob REVERSE LEVER The machine is equipped with a driving mechanism to propel the machine in the reverse direction. Squeeze the reverse lever to engage the reverse travel. When the lever is released, the machine drive is engaged. A FILTER SHAKER LEVER A. Filter Shaker Lever 04105 2-6 K4E MM010 (2-88)
OPERATION FRONT WHEEL LEVER The front wheel lever raises and lowers the front wheel. To lower and lock the front wheel, step on the front wheel lever. To raise the front wheel pull up on the front wheel lever. A FRONT WHEEL LEVER 04107 A. Front Wheel Lever K4E MM010 (2-88) 2-7
OPERATION MACHINE OPERATION TO START MACHINE 1. Make sure the starting and reverse switch is in the off position. 2. Plug the line cord into the electrical outlet that matches your machine voltage. 3. Lower the front wheel so the machine tool is clear of the surface to be cleaned. 4. Check the direction of motor rotation by moving the starting and reverse switch into the run position and squeezing the reverse lever. If the machine moves forward, return the switch to the off position. Allow the motor to slow to less than half speed. Then move the switch to the opposite side to the run position. TO SCARIFY Let the weight of the machine and the action of the tool do the work. Do not pull up on the handle. This causes poor machine control and undue wear on the machine tool. Feather the ends of each cleaning path slowly lifting the machine tool from the floor at the end of either forward or reverse travel. Propel your machine at a slow walk. Make the first cut, or cleaning path, in the forward direction. Then reverse the machine over the same path to end up at your original starting point. At the end of reverse travel, align the machine for the next path by maneuvering on the drive wheels with the front end of the machine lifted from the floor. Overlap the previous path slightly to avoid ridges and to assure a more uniform surface. 1. Push down on the handle to lift the front end of the machine and release the front wheel lever to raise the front wheel. 2. Slowly lower the front end of the machine to the floor while moving the machine forward. This will feather the end of the cleaning path. TO STOP MACHINE 1. Push down on the handle to lift the front end of the machine and lower and lock the front wheel. 2. Move the starting and reverse switch to the off position. Unplug the machine from the outlet. 2-8 K4E MM010 (3-91)
CONTENTS MAINTENANCE SECTION 3 Page RECOMMENDED FIRST 100--HOUR MACHINE INSPECTION....................... 3-3 MAINTENANCE CHART................... 3-4 LUBRICATION............................ 3-6 WHEELS.............................. 3-6 FRONT WHEEL CONTROL ARM........ 3-6 BELT IDLER ASSEMBLY................ 3-6 DRUM AND SHAFT ASSEMBLY......... 3-6 REVERSE DRIVE HOUSING............ 3-6 BEARING HOUSING ASSEMBLY........ 3-6 DRIVE CHAINS........................ 3-6 ELECTRICAL SYSTEM.................... 3-7 ELECTRICAL DIAGRAM................ 3-7 BELTS AND CHAINS...................... 3-9 DRUM AND SHAFT ASSEMBLY DRIVE BELT........................ 3-9 REVERSE PROPELLING DRIVE BELT... 3-9 VACUUM FAN BELT.................... 3-9 DRIVE CHAINS........................ 3-9 TOOLS.................................. 3-10 TO MOUNT MACHINE TOOLS.......... 3-10 STEEL WOOL ROLL OR FIBER BRUSH3-10 SANDING DRUM.................... 3-11 WIRE BRUSH OR REVOr--TOOL..... 3-12 REVOr--TOOLS........................ 3-12 ORDERING REVOr--TOOL ASSEMBLIES.................... 3-12 CUTTER SPACING.................. 3-13 CUTTER BUNDLE................... 3-13 BUNDLE PATTERN.................. 3-13 TYPES OF CUTTERS............... 3-14 LEVELING THE TOOL DRIVE........... 3-15 DEBRIS HOPPER AND DUST FILTER...... 3-16 DEBRIS HOPPER...................... 3-16 DUST FILTER......................... 3-16 K4E MM010 (3-91) 3-1
MAINTENANCE 3-2 K4E MM010 (2-88)
RECOMMENDED FIRST 100 -HOUR MACHINE INSPECTION After the first 100 hours of operation, the following procedures are recommended: 1. Check the hardware and tighten any loose nuts and bolts. 2. Change the reverse drive housing automatic transmission fluid. 3. Perform all daily and weekly maintenance procedures listed in the Maintenance Chart. MAINTENANCE K4E MM010 (2-88) 3-3
MAINTENANCE MAINTENANCE CHART 6 9 8 3 5 11 10 14 12 7 5 5 MAINTENANCE LOCATIONS 04667 04668 3-4 K4E MM010 (2-88)
MAINTENANCE CHART MAINTENANCE No. of Service Interval Key Description Procedure Lubricant Points Daily 3 Dust filter Shake -- 1 Weekly 5 Wheels Lubricate MPGM 3 6 Belt idler assembly Lubricate MPGM 1 7 Front wheel control arm Lubricate MPGM 1 8 Drum and shaft Lubricate MPGM 1 assembly drive sheave 9 Drum and shaft Check condition -- 3 assembly drive belt 10 Reverse propelling Check condition -- 1 drive belt 11 Vacuum fan belt Check condition -- 1 12 Drive chains Check and lubricate EO 2 Hardware Check tightness -- Entire machine Electrical system Tighten or replace Entire parts as needed machine Yearly 14 Reverse drive Change oil AT 1 housing AT -- Automatic transmission fluid, type A EO -- Engine oil MPGM -- Multipurpose, water resistant, lithium base, EP grease K4E MM010 (3-91) 3-5
MAINTENANCE LUBRICATION WHEELS The three wheels have grease fittings located on the wheel bearings. Apply a general purpose, water resistant, lithium base, EP grease to the wheels weekly. Apply grease until it is forced out around both ends of the bearing. DRUM AND SHAFT ASSEMBLY The drum and shaft assembly drive sheave has one grease fitting. Apply a general purpose, water resistant, lithium base, EP grease to the idler arm weekly. FRONT WHEEL CONTROL ARM The front wheel control arm has one grease fitting. Apply a general purpose, water resistant, lithium base, EP grease to the control arm weekly. C B C A B A FRONT WHEEL A. Front Wheel B. Front Wheel Control Arm C. Grease Fitting BELT IDLER ASSEMBLY The idler arm of the belt idler assembly has one grease fitting. Apply a general purpose, water resistant, lithium base, EP grease to the idler arm weekly. C 04103 04102 DRUM AND SHAFT ASSEMBLY DRIVE SHEAVE A. Front Wheel B. Drive Sheave C. Grease Fitting REVERSE DRIVE HOUSING Change the lubricant in the reverse drive housing after the first 100 hours, then once a year. A drain plug is located in the bottom of the housing. A filler plug is located on the side of the housing. Fill the housing to the level of the filler plug opening with a good grade type A automatic transmission fluid. Check the fluid level weekly. Check the outside of the housing for any indication of fluid leakage. BEARING HOUSING ASSEMBLY The bearing housing assembly located inside the drum and shaft assembly is sealed for life. It is not necessary to lubricate the bearings in this housing until the machine needs a complete overhaul. DRIVE CHAINS Check the chains and sprockets for wear and lubricate weekly with engine oil. 3-6 K4E MM010 (3-91)
ELECTRICAL SYSTEM MAINTENANCE Line Cord Assembly.3249 B Motor Lead Wires of Motor 18321A GR R W Ground GR Line and Reversing Switch GR B W B W Wire Kit 18261 550 V, 2.5/5 HP, 3 PH, Two Speed Line Cord Assembly 3249 (440 V) 3266(220 V) GR R W B Motor liead Wires of Motor 18301A 220V 18311A 440V Ground GR B Line and Reversing Switch 4117 GR B W W Wire Kit 18261 220 V or 440 V, 2.5/5 HP, 3 PH, Two Speed ELECTRICAL DIAGRAM K4E MM010 (2-88) 3-7
MAINTENANCE Line Cord Assembly 3266 GR R W GR Ground Line and Reversing Switch 4117 GR B W W B Wire Kit 18261 Motor Lead Wires of Motor 18205A 220 V, 5 HP, 3 PH, Single Speed Line Cord Assembly 3249 B GR R W GR B Ground Line and Reversing Switch 4117 GR B W W Wire Kit 18261 Motor Lead Wires of Motor 18205A 440 V, 5 HP, 3 PH, Single Speed ELECTRICAL DIAGRAM 3-8 K4E MM010 (2-88)
BELTS AND CHAINS MAINTENANCE DRUM AND SHAFT ASSEMBLY DRIVE BELT The drive belt transfers power from the motor to the tool drum and shaft assembly. It is spring tensioned and does not require tension adjustment. Be sure to check the spring occasionally for stretch or breakage. Replace it with a new spring if it is weak. Check the idler occasionally to see that it is turning freely. Check the belt condition weekly. Replace the belts as a set. REVERSE PROPELLING DRIVE BELT The reverse propelling drive belt transfers power from the motor to the reverse drive clutch assembly. DRIVE CHAINS The drive chains propel the machine. The chain s tension can be adjusted by moving the reverse drive clutch assembly and pillow block. Additional adjustment may be obtained by adding or subtracting shims under the pillow block. Check the belt tensions after adjusting the chains. To replace the chains, remove the connecting link from the existing chain. Install the new chain and adjust as needed. Do not over tighten. Check chains and sprockets for wear and lubricate weekly with engine oil. This belt is automatically adjusted by a self--adjusting, variable--pitch sheave. If additional adjustment is required, loosen two screws in the propelling drive mounting, and the two screws in the pillow block. Then move the complete drive clutch assembly in either direction to loosen or tighten the belt. Check the belt condition weekly. VACUUM FAN BELT The vacuum fan belt transfers power from the motor to the vacuum fan. To adjust the tension of the belt, loosen the screws mounting the vacuum fan housing, and move the vacuum fan housing in either direction to loosen or tighten the belt. Proper belt tension is obtained when the belt deflects 0.25 in (6.5 mm) from a force of 1.5 lb (.68 kg) applied at the mid--point of the longest span. (Tension = 60 lbs Burroughs tensiometer reading) To replace the the vacuum fan belt, loosen the screws mounting the vacuum fan housing, and move the housing to remove the existing belt. Position the new belt on the sheaves and move and mount the vacuum fan housing for proper tension. Check the belt condition weekly. K4E MM010 (2-90) 3-9
MAINTENANCE TOOLS A variety of of tool assemblies are available for different scarifying applications. The tool assemblies available are: steel wool roll brush, fiber brush, wire brush, sanding drum, and the REVOr--Tool. The steel wool roll brush and the fiber brush require mounting collars. The other tool assemblies mount directly on the drum and shaft assembly. D C E TO MOUNT MACHINE TOOLS STEEL WOOL ROLL OR FIBER BRUSH B A 1. Lift the front end of the machine and lower and lock the front wheel. TOOL DRIVE 04108 A A. Tool Access Door B. Hex Bolt C. Locking Lug D. Drum Plug E. Drum and Shaft Assembly 6. Mount the steel wool roll or fiber brush on the drum with inner and outer collars. 7. Slide the collar with the wide flange marked inner on the drum, flange side first. Align inner keys of the collar with the keyway on the drum. FRONT WHEEL LEVER A. Front Wheel Lever 2. Stop the motor and disconnect the power source. 04107 WARNING: Hazardous Voltage. Shock Or Electrocution Can Result. Unplug Power Cord Before Working On Machine. 3. Open the tool access door. 4. Loosen the hex bolt in the end of the drum and shaft assembly just enough to align the locking lug with the recess in the drum plug. 8. Align the steel wool roll or fiber brush keyways with the keys on the inner collar. NOTE: Be sure the steel wool roll is placed on the drum so the arrow stamped on the inside edge of the roll points forward toward the direction of rotation. Fiber brushes may be mounted either end first. 9. Mount the outer collar on the drive drum and inserting it into the core of the tool or brush. 10. Remount the drum plug. Turn the locking lug perpendicular to the recess on the drum plug. Securely tighten the hex head bolt. 5. Pull off the drum plug. 3-10 K4E MM010 (3-91)
MAINTENANCE SANDING DRUM 1. Lift the front end of the machine and lower and lock the front wheel. A 3. Open the tool access door. 4. Loosen the hex bolt in the end of the drum and shaft assembly just enough to align the locking lug with the recess in the drum plug. 5. Pull off the drum plug. FRONT WHEEL LEVER A. Front Wheel Lever 04107 6. Mount the sanding drum directly on the drum and shaft assembly by aligning the keys on the inside of the sanding drum with the keyways on the drum and shaft assembly. 7. Remount the drum plug. Turn the locking lug perpendicular to the recess on the drum plug. Securely tighten the hex head bolt. 8. To replace the sandpaper on the sanding drum: a. Remove sanding drum from the machine. 2. Stop the motor and disconnect the power source. WARNING: Hazardous Voltage. Shock Or Electrocution Can Result. Unplug Power Cord Before Working On Machine. 3. Open the tool access door. b. Remove the socket screws from the locking bar. Remove the locking bar and old sandpaper. c. Fit the new pre--cut sandpaper sheet, of desired grit, around the sanding drum. NOTE: Be sure the sandpaper edges fit evenly around the drum circumference with the ends pulled tightly together and hole openings coinciding at the center of the locking bar recess. D C E d. Remount the locking bar and loosely insert all the screws. Hold the sandpaper tightly in place around the drum. Then alternately tighten all screws evenly or the sandpaper may be damaged at the locking bar edge. B A TOOL DRIVE 04108 A. Tool Access Door B. Hex Bolt C. Locking Lug D. Drum Plug E. Drum and Shaft Assembly K4E MM010 (3-91) 3-11
MAINTENANCE WIRE BRUSH OR REVOr--TOOL 1. Lift the front end of the machine and lower and lock the front wheel. A 6. Mount the wire brush or REVOr--Tool directly on the drum and shaft assembly by aligning the keys on the inside of the brush or tool with the keyways on the drum and shaft assembly. 7. Remount the drum plug. Turn the locking lug perpendicular to the recess on the drum plug. Securely tighten the hex head bolt. FRONT WHEEL LEVER A. Front Wheel Lever 2. Stop the motor and disconnect the power source. 04107 WARNING: Hazardous Voltage. Shock Or Electrocution Can Result. Unplug Power Cord Before Working On Machine. 3. Open the tool access door. REVOr-TOOLS As shipped, the REVOr--Tool contains cutters arranged in a recommended pattern or one which is requested. An important feature of the rigid frame tool is that it can be easily refilled with new cutters right on the job. To insure top performance, care must be taken to properly assemble the cutters and spacers. Good balance is the most important factor in setting up the REVOr--Tool. A tool that is out of balance will cause vibration and may damage the machine. The rigid frame has been carefully balanced in the factory. This balance will be maintained by properly placing the cutters and spacers, if used, on the rods. Begin assembly by placing a cutter then a spacer, if used, etc., on the first rod. The next rod will begin with a spacer, if used, then a cutter, etc. Always place equal numbers of cutters or cutters and spacers on each rod. D B TOOL DRIVE C E A 04108 NOTE: One exception to alternating the cutter and spacers on adjacent rods is a REVOr-Tool assembly set up for scoring or grooving concrete. This tool assembly begins each rod with a cutter followed by four spacers. ORDERING REVOr--TOOL ASSEMBLIES Numerous REVOr--Tool assemblies can be ordered fully assembled to be used on a particular job. The following terms and codes are used when referring to REVOr--Tool assemblies. A. Tool Access Door B. Hex Bolt C. Locking Lug D. Drum Plug E. Drum and Shaft Assembly 4. Loosen the hex bolt in the end of the drum and shaft assembly just enough to align the locking lug with the recess in the drum plug. 5. Pull off the drum plug. 3-12 K4E MM010 (3-91)
MAINTENANCE CUTTER SPACING Cutter spacing refers to the number of spacers which separate the cutters on the rod. Four types of spacing are used and are designated by the letters A, B, C, and D. One of these letters is included in the tool assembly part number to define the number of spacers between the cutters. A -- no spacers between the cutters B -- one spacer between the cutters C -- four spacers between the cutters D -- two spacers between the cutters CUTTER BUNDLE Cutter bundle is a group of cutters or spacers and cutters, that fill part of a rod within a section of the tool frame. A section of the tool assembly lies between two adjacent flanges BUNDLE PATTERN Bundle pattern is the arrangement of cutter bundles on the tool assembly. There are four bundle patterns; full, half, one--quarter, and special. These are designated by no letter, M, L, and S respectively. No letter -- full pattern -- 8 rods of the tool assembly are filled the full length of the tool. M -- half pattern -- 4 rods of the tool assembly are filled the full length of the tool and 4 rods are empty. L -- one--quarter pattern -- one cutter bundle filling one section of each rod of the tool assembly, with the bundles on the opposite side of each section of the tool. S -- special -- any balanced configuration. Here are some examples of REVOr--Tool assemblies and their part numbers: TENNANTr Part Number 03372--1A The only letter designation this part number has is A. This means the there are no spacers between the cutters and it has a full pattern. TENNANTr Part Number 03372L9B The letter designations in this part number are L, for one--quarter pattern, and B, for one spacer between each cutter. The 9 between the L and B refers to a type of cutter. TENNANTr Part Number 03372S9B--4 The letter designation in this part number are S, for special configuration, and B, for one spacer between each cutter. The 9 refers to a type of cutter and the 4 means the tool assembly is designed to cover a 4 in (100 mm) path. Cutter Rod Locking Plate Frame Exploded View of Revo Tool 06855 K4E MM010 (3-91) 3-13
MAINTENANCE TYPES OF CUTTERS Diameter Tennant Outside of Center Type Part No. Diameter Thickness Hole Use Corrugated 06603 (black) 2.0 in (51 mm) 0.63 in (16 mm) General maintenance 06604 (gold) 2.0 in (51 mm) 0.63 in (16 mm) General maintenance No. 9 04099 2.0 in (51 mm) 0.16 in (4 mm) 0.75 in (19 mm) General use: concrete scoring and roughening, grime and paint removal, etc. Quite aggressive. No. 3 03895-4 2.0 in (51 mm) 0.16 in (4 mm) 0.75 in (19 mm) Pulverizing action for cleaning steel decks, removing pitch and gravel from roofs, etc. Less aggressive than No. 1 or No. 9 cutters. No. 4 03895-4 2.0 in 0.19 in (5 mm) 0.625 in For light, easy to (50.8 mm) (15.9 mm) remove accumulations. Least aggressive of the cutters. No.1 03894-1 2.0 in (51 mm) 0.19 in (5 mm) 0.75 in (19 mm) For pre -sanding and for leveling wood floors. Most aggressive of the cutters. 03895-11 2.0 in (51 mm) 0.16 in (4 mm) 0.75 in (19 mm) Similar to No. 3 cutter only made of specially hardened steel for longer wear. 18277 1.5 in (38 mm) 0.09 in (2 mm) 0.5 in (13 mm) Used on twelve rod tool. For seal removal. 18495 1.75 in (45 mm) 0.62 in (15 mm) 0.69 in (17 mm) 03447 2.0 in (50 mm) 0.62 in (15 mm) 0.69 in (17 mm) 04163 ATTENTION: Be sure when replacing cutters and spacers that there is an equal amount of cutters and/or cutters and spacers on every rod. Tool balance is important to the operation of the machine and tool. A tool which has been improperly spaced will have uneven weight distribution and will tend to set up a vibration. This will damage the machine or tool. 3-14 K4E MM010 (2-88)
MAINTENANCE LEVELING THE TOOL DRIVE The left rear wheel axle has an height adjusting bolt to level the tool drive in relation with the floor. 1. Move the machine to a level surface. A B C 2. Stop the motor and disconnect the power source. WARNING: Hazardous Voltage. Shock Or Electrocution Can Result. Unplug Power Cord Before Working On Machine. 3. Remove the tool assembly from the drum and shaft assembly. 4. Remove the hopper and locate the left hand axle. 5. Loosen the four screws mounting the left hand axle to the machine frame. 6. Place two objects of 1 in (250 mm) height, such as two pieces of pipe, under each side of the drum and shaft assembly. 7. Adjust the height screw until the weight of the drum and shaft assembly rests evenly on the pieces of pipe. D F LEVELING THE TOOL DRIVE A. Height Screw B. Mounting Screws C. Drum and Shaft Assembly D. Left Hand Axle E. 1 in Pipe F. Level Floor 8. Tighten the four axle mounting screws. E 04099 9. Check the chain tension and adjust if necessary. 10 Check the cutting path often for uniform path width. Adjust when necessary. K4E MM010 (3-91) 3-15
MAINTENANCE DEBRIS HOPPER AND DUST FILTER DEBRIS HOPPER The debris hopper collects debris scarified by the tool assembly. It should be dumped often during a job. The hopper seal should be replaced when it becomes worn. The hopper and deflector should be scraped clean periodically. B A DUST FILTER The dust filter filters the air which is drawn up from the main brush compartment by the vacuum fan. It is located inside the dust filter compartment. Shake the excess dust from the filter daily. Inspect the dust filter for rips and tears. Replace the dust filter when necessary. C A A. Debris Hopper B. Hopper Seal C. Deflector DEBRIS HOPPER 04109 A. Dust Filter DUST FILTER 04110 3-16 K4E MM010 (2-88)
CONTENTS APPENDIX SECTION 4 Page HARDWARE INFORMATION............... 4-3 STANDARD BOLT TORQUE CHART..... 4-3 METRIC BOLT TORQUE CHART........ 4-3 BOLT IDENTIFICATION................. 4-3 THREAD SEALANT AND LOCKING COMPOUNDS...................... 4-3 K4E MM010 (2-90) 4-1
APPENDIX 4-2 K4E MM010 (2-88)
HARDWARE INFORMATION APPENDIX The following charts state standard plated hardware tightening ranges for normal assembly applications. Decrease the specified torque by 20% when using a thread lubricant. Do not substitute lower grade hardware for higher grade hardware. If higher grade hardware than specified is substituted, tighten only to the specified hardware torque value to avoid damaging the threads of the part being threaded into, as when threading into speed nuts or weldments. STANDARD BOLT TORQUE CHART Thread SAE Grade 5 SAE Grade 8 Siz Torque ft lb (Nm) Torque ft lb (Nm) 0.25 in 7-10 (9-14) 10-13 (14-38) 0.31 in 15-20 (20-27) 20-26 (27-35) 0.38 in 27-35 (37-47) 36-47 (49-64) 0.44 in 43-56 (58-76) 53-76 (72-103) 0.50 in 65-85 (88-115) 89-116 (121-157) 0.62 in 130-170 (176-231) 117-265 (159-359) 0.75 in 215-280 (291-380) 313-407 (424-552) 1.00 in 500-650 (678-881) 757-984 (1026-1334) NOTE: Decrease torque by 20% when using a thread lubricant. METRIC BOLT TORQUE CHART Thread Class 8.8 Class 10.9 Size Torque ft lb (Nm) Torque ft lb (Nm) M4 2 (3) 3 (4) M5 4 (5) 6 (8) M6 7 (9) 10 (14) M8 18 (24) 25 (34) M10 32 (43) 47 (64) M12 58 (79) 83 (112) M14 94 (127) 133 (180) M16 144 (195) 196 (265) M20 260 (352) 336 (455) M24 470 (637) 664 (900) BOLT IDENTIFICATION Identification Grade Marking Specification and Grade SAE--Grade 5 SAE--Grade 8 ISO--Grade 8.8 ISO--Grade 10.9 01395 THREAD SEALANT AND LOCKING COMPOUNDS Thread sealants and locking compounds may be used on this machine. They include the following: Locktite 515 sealant -- gasket forming material. TENNANTr Part No. 75567,15 oz (440 ml) cartridge. Locktite 242 blue -- medium strength thread locking compound. TENNANTr Part No. 32676, 0.5 ml tube. Locktite 271 red -- high strength thread locking compound. TENNANTr Part No. 19857, 0.5 ml tube. NOTE: Decrease torque by 20% when using a thread lubricant. Exceptions to the above chart: Rear wheel hub nut -- 150 -- 175 ft lb (200 -- 240 Nm) Rear wheel lug nuts -- 85 -- 95 ft lb (115 -- 130 Nm) K4E MM010 (2-88) 4-3
APPENDIX 4-4 K4E MM010 (2-88)