72 M-AX Extreme Duty Owner / Operator Instruction & Maintenance Manual

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1 72 M-AX Extreme Duty Owner / Operator Instruction & Maintenance Manual 1

2 Before operation of your Brush Wolf 72 M-AX read the entire contents of this manual Congratulations on your purchase of the Brush Wolf 72 M-AX Extreme Duty Rotary Brush Cutter. At Cross-Tech Manufacturing we take great pride in the design and manufacturing of our products. We appreciate your business and are confident your Brush Wolf will provide many years of reliable service. Welcome to the Brush Wolf family of attachments. The 72 M-AX Extreme Duty Rotary Brush Cutter is engineered to cut brush and can cut trees up to 8 inches in diameter dependant upon the type of wood and the density of the vegetation. For your safety and the safety of others, please read the entire contents of this manual prior to the operation of the Brush Wolf 72 M-AX. If you have questions regarding your Brush Wolf, contact your dealer. Please take the time to fill out the Warranty Registration Form contained in this manual or go on-line at Brushwolf.com. A Warranty Registration Form must be on file within thirty days of the purchase date in order for warranty claims to be valid. A full description of the warranty and process for submittal can be found on the back cover of this manual. To ensure prompt and accurate information when working with your dealer regarding your Brush Wolf 72 M-AX please complete the Owner Reference Information below. The information will be vital for service, repair and warranty inquiries. OWNER REFERENCE INFORMATION Date Purchased: Dealer Name: Dealer Phone: Model Number: Serial Number: Thank you for your business! 2

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4 Table of Contents Foreword...2 Safety Section...6 Operation Instructions...8 Maintenance...9 Maintenance Checklist...10 Troubleshooting...11 Parts Diagram...12 Parts List...13 Parts List and Diagram - Drop Blade Carrier - 3 blade assembly...14 Drop Blade Replacement Instructions...15 Parts List and Diagram - Flat Blade Carrier - 4 flat blade assembly...16 Flat Blade Replacement Instructions...17 Dealer Checklist...18 Warranty Registration...19 Warranty Information

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6 Safety Instructions The following safety instructions are provided to alert you to precautions which, if not followed, may cause serious injury to yourself or others. Please read these instructions completely. Cross-Tech Manufacturing can not cover every incident that might be a hazard. Extreme caution should be used at all times. Only use Brush Wolf Brush Cutters for the purpose for which they have been designed. Always operate skid steer with a forestry rated door and cab. Safety goggles and hearing protection must be worn at all times. Site Inspection: Before operation of the Brush Wolf 72 M-AX, carefully inspect the area to be cleared. Remove any items which may be picked up and thrown by the cutting blades; wire, pipes, or rocks. Mark any object too large to move. Equipment Inspection: Prior to inspection the unit must be disconnected from the skid steer. To inspect or to make repairs under the 72 M-AX deck always block the unit securely in order to prevent accidental release of the lift mechanism. Inspect all hydraulic hoses and shields to ensure they are in good condition and without holes before pressurizing. Hydraulic fluid can escape under pressure and may cause serious injury or death. Wear safety goggles, ear protection, hard hat, and only operate the skid steer behind shatter proof forestry rated door and cab. Skid Steer Auxiliary Hydraulic Flow: The 72 M-AX Extreme Duty is only to be used on a skid steer with auxiliary hydraulic flow rated at GPM (Gallons Per Minute). Any less GPM and the 72 M-AX will not operate at peak proficiency. Do Not operate within 300 of bystanders, vehicles, pets, livestock or buildings. Objects may discharge while cutting with the 72 M-AX and has the potential to cause injury or death. Do Not place hands, feet or other objects under the deck while the Brush Wolf 72 M-AX is in operation. To inspect or perform maintenance under the deck, always shut down the power to the Brush Wolf, shut-off the skid steer engine, disconnect hydraulic hoses, and block the unit. Do Not raise the mower deck when blades are rotating. Operation with the mower raised will expose the cutting blades and the potential for injury or death. Do Not allow children to operate a rotary brush cutter. Only individuals with skid steer experience who are well acquainted with the rules of safe operation should be allowed to operate the Brush Wolf 72 M-AX. 6

7 Safety Instructions Do Not operate the Brush Wolf 72 M-AX in conditions with poor visibility. Do Not expose the underside of the blades towards the cab. Do Not operate while intoxicated or if taking medications that may impair your senses or reactions. Do Not attempt to straighten blades. Order replacement blades if blades are bent, cracked or damaged. Do Not leave the Brush Wolf 72 M-AX unattended while in a raised position. Always make sure both the runners are placed firmly on the ground and shut down the skid steer. Do Not continue operation if an unexpected object is struck. IMMEDIATELY shut down power to both the attachment and the skid steer. Disconnect from the hydraulic couplers from the power source. Evaluate the damage, repair and the test unit before operation. Do Not allow anyone or any item on top of the mower deck when in operation. 7

8 Operation Instructions 1. Prior to operation check blades and replace if cracked or damaged. All blades must be replaced at the same time. Tighten the blade carrier to the bearing housing, blade bolts/nuts, and hydraulic motor mount nuts. Check the hydraulic fluid. A low level could indicate a leak and require a closer inspection of your unit. 2. Connect the Brush Wolf 72 M-AX to your skid steer with the universal quick-tach mount. 3. Once connected, visually check the lock pins to make sure the 72 M-AX is securely locked in place. Do Not operate the Brush Wolf 72 M-AX on Low Flow auxiliary hydraulic or any skid steer rated under 30 GPM. All 72 M-AX units are designed to operate on skid steers rated with auxiliary hydraulic flow of GPM. 4. Inspect the hydraulic couplers and wipe off water, dust or any debris. Dirt and debris can damage hydraulic components. Once cleaned, connect the couplers from the cutter to the auxiliary hydraulic system on the skid steer. 5. Connect the auxiliary hydraulic lines for the brush cutter and case drain to the skid steer. Twist the collars of the quick connect couplers to secure the hydraulic connections. 6. Confirm all safety measures have been completed per the Safety Instructions. Most importantly make sure the area is clear of personnel and pets. 7. Enter shatter-proof cab door, engage seat belt, release brake and start engine. The runners of the 72 M-AX should be as close to the ground as possible. Never raise the 72 M-AX more than seven (7) inches off the ground. 8. Slowly apply hydraulics to the Brush Wolf 72 M-AX and increase the engine speed to high idle. Make sure the unit is operating smoothly before moving the skid steer forward. When temperatures are below zero allow additional time for hydraulic fluids to warm-up. 9. Maintain a speed to handle the volume of brush and to prevent stalling. 10. Stay alert for drop-offs, rocks, holes, abandoned wells and septic tanks. Do not operate or drive across a steep embankment as this may cause a rollover with possible injuries or death. 11. To cut large diameter brush and trees, move forward slowly to make the cut. 12. <IMPORTANT> Proper shut down procedures: lower lift arms, make sure the cutter is placed flat on the ground, shut off the switch for the auxiliary hydraulics, once hydraulics are shut off then slowly throttle down the skid steer, stop the engine, and engage parking brake prior to leaving the cab. 13. To disconnect hoses use proper hand protection as the couplers may be hot. 8

9 Maintenance Your new Brush Wolf 72 M-AX Exteme Duty is a precisely engineered attachment and requires little maintenance. The Brush Wolf 72 M-AX is built to strict standards and will deliver years of dependable service by following these maintenance guidelines: 1. Perform maintenance on level surface with the unit firmly on the ground. Shut off the hydraulic power supply and disconnect hydraulic couplers. 2. Check all nuts and bolts for proper tightness. See Maintenance Schedule. 3. Every Brush Wolf is tested at the factory and all nuts and bolts have been tightened to specifications. We recommend you check them after the first 4 to 6 hours of operation and at regular intervals as defined in the Maintenance Schedule. 4. Inspect blades for damage before each use. Tighten all the nuts which secure the blades to the blade carrier every eight (8 )hours. Torque to 775 ft - lbs with a 1-11/16 socket on the Drop (3) Blade Carrier. Torque to 275 ft - lbs with a 1-1/8 on the Flat (4) Blade Carrier. The nuts are located under the access plate on the top of the cutter (see Parts Diagram on Page 12 item # 2). 5. Tighten the nuts on the blade carrier at the lower end of the bearing housing. Torque to 380 ft - lbs with a 15/16 socket wrench. 6. Check lubricant level weekly. Remove the bearing housing plugs. If the resevoir is full it will measure within 2 of the plug cap. Loss of fluid could be indicative of a leak. When adding oil use 80 W 90 gear lube weight - DO NOT over fill - too much lubricant will rupture the bearing housing. The bearing housing is full when the oil level is 2 from the plug cap. CAUTION: Always replace the entire set of blades. Never weld or straighten damaged blades, as loss of blade integrity may result. CAUTION: Replace missing or illegible safety decals immediately. Decals are available at your Brush Wolf 72 M-AX dealer. 9

10 Maintenance Schedule / Check List CAUTION: Perform maintenance on a level surface with the unit firmly on the ground. Shut off the hydraulic power supply and disconnect hydraulic couplers. Do Not loan your 72 M-AX to another skid steer owner. The potential exists for hydraulic contamination and could shorten the life of your skid steer or the hydraulic motor on your 72 M-AX. ITEM TYPE OF MAINTENANCE FREQUENCY Blade carrier to bearing Torque to 380 ft - lbs for the 3 & 4 blade carrier Daily or every 8 hours housing bolts assemblies. Blade Bolt/nuts Torque to 775 ft - lbs for the 3 drop blades. Torque 275 ft - lbs for the 4 flat blade bolts. Daily or every 8 hours Blade Inspection Check for damage, dullness or cracks. Blades Daily or every use should rotate freely and be clear of obstructions. Replace entire set of blades if damaged. Bearing Housing Remove any foreign material from shaft. Daily or every use Bearing Housing nuts Torque to 230 ft - lbs Daily or every 8 hours Hoses and hose safety shield Check for wear or damage. Daily or every 8 hours Hydraulic Motor Mount Bolts Torque to 75 ft - lbs. Daily or every 8 hours Block - High Flow Units Torque to 420 in - lbs Daily or every 8 hours Bearing housing lubricant Check oil - add 80W90 gear lube - DO NOT over fill - The bearing housing is full when oil level is 2 below the plug cap. Push Guard Clean the grease fitting before lubrication. Apply grease to the pins on the guard of the 72 M-AX. 72 M-AX Unit Clean the unit to view potential damage or obstructions that could result in poor performance. Once per week As needed As needed 10

11 Troubleshooting Note: When performing maintenance, shut down the skid steer and remove all hydraulic hoses from the power source. Problem Loss of Power Check Low hydraulic fluid level Overheated hydraulic fluid* Contaminated hydraulic fluid* *May damage hydraulic motor Excessive Unit Vibration Leaking Oil Dull, broken or damaged blades Blade carrier out of balance Loose nuts and bolts New blade or bolts matched with worn blade or bolts Wire or rope wrapped around blades Loose hydraulic connections Ruptured hydraulic motor seals 11

12 72 M-AX Parts Diagram 12

13 Parts List Model 72 M-AX ITEM ITEM QTY PART NUMBER DESCRIPTION ACCUM FRAME, 72 M-AX, WELDMENT PLATE, ACCESS, 3 HOLE, M-AX WELDMENT, PUSH GUARD, M-AX DECAL KIT, BW 72 M-AX HOSE WHIP ASSEMBLY, -12 ORFS, FEMALE SWIVEL COUPLINGS, X HOSE HOSE WHIP ASSEMBLY, -6 ORFS, FEMALE SWIVEL COUPLINGS, X HOSE HOSE WHIP ASSEMBLY, -6 ORFS, FEMALE SWIVEL COUPLINGS, X HOSE PLATE, STAUFF, 3 HOLE COVER, 1.25 X COVER, 50MM ACCUMULATOR MOTOR, 11.9 CU IN, SAE CC 4 BOLT, DIA SPLIT FLANGE STAGGERED PORTS, 14 TOOTH SPLINE BLOCK, CROSSOVER RELIEF MANIFOLD, 6K MOTOR, 4100/500 RELIEF, STEEL COUPLER, FEMALE, SIZE 16, 1 1/6-12, O-RING BOSS COUPLER, MALE, SIZE 16, 1 1/6-12, O-RING BOSS BEARING HOUSING, # SPRING, TORSION, PUSH GUARD, RIGHT SPRING, TORSION, PUSH GUARD, LEFT PIN, SPRING, DIA X CLAMP, BODY, TWO PIECE, , THREE HOSE, BLACK ADAPTER, STRAIGHT, #12 MORF, #12 MORB ADAPTER, STRAIGHT, #6 MORFS, #4 MORB ADAPTER, STRAIGHT, #6 MORFS, #8 MORB COUPLER, FLAT FACED, FEMALE, 3/4-16, O-RING BOSS EDGE TRIM, X LEG, DUAL TNG CLAMP, 50MM ACCUMULATOR, BOTTOM CLAMP, 50MM ACCUMULATOR, TOP ADAPTER, RUN TEE, #12 MORFS, #12 MORB, #12 MORFS ADAPTER, REDUCER, #12 ORFS, #6 ORFS ADAPTER, 90 DEG, #8 MORB, #6 MORFS ACCUMULATOR, PISTON, 50MM BORE, 4000 PSI 30 4 Hardware BOLT, HH, 1/2-13 X 2 UNC, GRD 5, ZINC 31 2 Hardware BOLT, HH, 3/8-16 X 3, GRD 5, ZINC 32 4 Hardware BOLT_HH_ DH_1_4-20X1 UNC_GRD Hardware BOLT, HH, FLANGED, 3/8-16 X 1, GRD 5, ZINC 34 6 Hardware NUT, NYLOCK, 3/8-16, ZINC 35 2 Hardware NUT, NYLOCK, 1/2-13, ZINC 36 8 Hardware NUT, NYLOCK, 5/8-18,GRD 8 ZINC 37 8 Hardware SCREW_ CAP_SH_ 3_8-16X3 1_2 GRD Hardware WASHER_FLAT_.250 X.500 O.D Hardware WASHER, FLAT, 3/8, ZINC 40 2 Hardware WASHER, FLAT, 1/2, ZINC WASHER, NORD-LOCK, X OD, ZINC WASHER, NORD-LOCK, X OD, ZINC 43 4 Hardware WASHER_SPRING LOCK_ Hardware WIRE, SS,.032 X ZERK, GREASE, 1/4-28 STRAIGHT, LONG 13

Standard Blade Assembly Drop Blade Assembly - 3 blades Parts List DROP BLADE CARRIER ASSEMBLY ITEM ITEM QTY PART NUMBER DESCRIPTION 1 1 15095 WELDMENT, BLADE CARRIER, 47.000 DIA X 1.

14 Standard Blade Assembly Drop Blade Assembly - 3 blades Parts List DROP BLADE CARRIER ASSEMBLY ITEM ITEM QTY PART NUMBER DESCRIPTION WELDMENT, BLADE CARRIER, DIA X PLATE, M-AX SET OF 3 BLADES, X X BOLT, D-BOLT, 1 1/8-12, M-AX NUT, TOP LOCK, 1 1/8-12, GRADE C, PLAIN 5 8 Hardware BOLT HH 3/4-10X2 UNC GRD8 6 3 Hardware WASHER, FLAT, 1 1/8, F436, ZINC 14

15 Standard Blade Assembly Drop Blade Maintenance - 3 blades 1. Perform maintenance on level surface with the 72 M-AX blocked off the ground. Shut off the hydraulic power supply and disconnect hydraulic couplers. 2. Tighten bolts of blades every use or every eight hours. Inspect blades. 3. Damaged, bent or dull blades should be replaced immediately. Replace all three blades, and hardware at the same time. Follow the instructions below. To Replace Blades: 1. Perform replacement on level surface with the 72 M-AX blocked off the ground. Shut off the hydraulic power supply and disconnect hydraulic couplers. 2. Remove nuts and washers from plate on the cutter deck to expose access hole. For location of access hole - reference item #2 on the Parts drawing of the 72 M-AX on page Through the exposed access hole rotate the blade carrier to line up the nut of the blade for access. 4. Insert a 1-11/16 socket through the access hole and remove the nut and drop the bolts. 5. Remove blades and pucks horizontally from the brush cutter. 6. Clean new bolts, lock-nuts and washer with cleaner/degreaser. Prior to assembly, ensure all hardware is dry and free of any contaminents including the carrier assembly. 7. Use Primer Loctite on the bolts and nuts according to directions on the label. 8. Apply Loctite #243 to the first 10 bolt threads to ensure coverage. 9. Assemble the new blade, the bolt, washers, and the nut to the carrier. The blade carrier cuts in one direction - counter clockwise. 10. Torque the blade bolts to 775 ft/lbs using a 1-11/16 socket. 11. Confirm the blade carrier rotates freely and is clear of any obstructions. 12. Install the plate to the access hole on the top of the 72 M-AX. 15

625 3 4 15099 PUCK, 3.500 DIA X 0.750, 3 HOLE 4 12 16148 WASHER, NORD-LOCK, 0.750 X 1.

16 Optional Blade Assembly Flat Blade Assembly - 4 blades Parts List FLAT BLADE CARRIER ASSEMBLY ITEM ITEM QTY PART NUMBER DESCRIPTION ASSEMBLY, BLADE CARRIER, M-AX, FLAT DISCS SET OF 4 BLADES, FLAT, X X PUCK, DIA X 0.750, 3 HOLE WASHER, NORD-LOCK, X OD, ZINC 5 8 Hardware BOLT, HH, 3/4-10 X 5, GRD 8, ZINC BOLT, HH, 3/4-16 X 3, GRD 8 LONG SHOULDER 7 8 Hardware WASHER, FLAT, 3/4, F436, ZINC NUT TOPLOCK 3/4-16 GRD 8, ZINC 16

17 Optional Blade Assembly Flat Blade Replacement - 4 blades 1. Perform maintenance on a level surface with the unit blocked off the ground. Shut off the hydraulic power supply and disconnect hydraulic couplers. 2. Tighten blades bolts every use or every eight hours, and inspect blades for damage. 3. The Flat blades are a reversible cutting edge - just turn over the blade - all four (4) blades must be turned over at the same time. When blades are replaced an entire new set of four (4) blades, pucks, bolts and washers must be replaced at the same time. Follow the instructions below. To Replace Blades: 1. Remove nuts and washers from plate on the cutter deck to expose access hole. For location of access hole - reference item #2 on the Parts drawing of the 72 M-AX on page Through the exposed access hole rotate the blade carrier to line up the nut of the blade for access. 3. Insert a 1-1/8 socket through the access hole and remove 3 nuts for each blade. 4. Pound out the bolt using a drift pin or center punch to prevent damaging the threads. 5. Slide puck and blade out. 6. Clean blades, pucks, bolts, locknuts and washer with cleaner/degreaser. Prior to assembly, ensure all hardware is dry and free of any contaminents including the carrier assembly. 7. Insert the new puck and blade between carrier assembly. Line up with the bolt holes. Note: If the reverse side of the blades have not been used - turn the blade over. All four blades must be turned over at the same time. The blade carrier cuts in one direction - counter clockwise. Worn or damaged pucks, bolts, and washers must be replaced in sets. 8. Apply Loctite #243 to first ten bolt threads to ensure coverage. 9. Assemble the bolt, washer, and the nut to the carrier as shown on the opposite page. 10. Torque the blade bolts to 275 ft/lbs. 11. Confirm the blade carrier rotates freely and is clear of any obstructions. 12. Install the plate of the access hole on the top of the 72 M-AX. 17

18 Dealer Instructions / Purchaser Checklist The checklist below is important information for the Dealer to review with the Purchaser. Mail, , or fax a copy to: Cross-Tech Manufacturing, Inc Gendreau Road Crosslake, MN info@brushwolf.com Also available to fill out on-line: SAFETY OPERATIONS CHECKLIST Explain and alert buyer of High Flow motor and case drain. No auxiliary hydraulics over 40 Gallons Per Minute (GPM). Explain and demonstrate operation of Brush Wolf 72 M-AX. Explain use and demonstrate use of Cab Safety Door. Explain and demonstrate bearing housing/lube level check. Explain and demonstrate inspection points and frequency; including nuts, bolts, blades, hoses, etc. Review the Owner/Operator Manual Safety Instructions. Alert buyer not to remove safety devices or decals. Advise buyer that all safety decals are available upon request. Dealer Information Dealer Company Name Technician Name City State/Province/ Region 18

19 Warranty Registration Form Thank you for choosing Brush Wolf. Please complete the form below to register your Brush Wolf product. There is a form available to fill out on-line at Please complete the Warranty Registration form within 30 days of purchase date to qualify for warranty. Purchaser Information Company Contact Name Phone Address 1 Address 2 City Zip/Postal Code State/Province/Region Country Model Number: Serial Number: Date of purchase MM DD YYYY Would you recommend this product to your friends? Yes No Condition of the product? Excellent Good Fair Poor Cross-Tech Manufacturing, Inc Gendreau Road Crosslake, MN info@brushwolf.com Also available to fill out on-line:

A two (2) year warranty is included on the structural steel from the date of sale. A Warranty Registration Form for this equipment must exist before warranty claims will be valid.

20 WARRANTY INFORMATION: The Warranty Claim Form must be completed in full detail and received in good condition. Cross-Tech Manufacturing, Inc. limits it warranty to the hydraulic motor, gearbox, bearing housing and cylinders for a period of one (1) year from the original date of sale. A two (2) year warranty is included on the structural steel from the date of sale. A Warranty Registration Form for this equipment must exist before warranty claims will be valid. If a defect in a Cross-Tech Manufacturing product is discovered during the applicable warranty period, Cross- Tech will repair or replace, at its option the motor, gearbox or defective part. Cross-Tech Manufacturing, Inc. purchased components are subject to the original manufacturer s warranty. The Equipment owner is responsible for proper maintenance. If the product is not maintained, all warranties by Cross-Tech Manufacturing will be null and void. Any modification to the product other than those made by Cross-Tech Manufacturing will cause this warranty to be void; including any modification or disassembly of motors, gearbox, bearing housing, cylinders, etc. This warranty does not extend to repairs, adjustments, or replacement of a Cross-Tech product or part that results from misuse, negligence, alteration, modification tampering, improper maintenance or improper operation of the product. Claims submitted must be legible and in good condition. Cross-Tech does not cover service mileage, downtime or replacement of the attachment. If a problem arises during the warranty period please contact your local dealer. The warranty is null and void if the product is modified or repaired without written consent from Cross-Tech Manufacturing. Cross-Tech units used in rental fleets are covered with a ninety (90) day warranty on the hydraulic motor, gearbox, bearing housing, cylinders and structural steel with a valid warranty registration on file within thirty (30) days of the purchase date. To file a warranty claim, please contact your dealer or Cross-Tech Manufacturing. Copyright 2015 Cross-Tech Manufacturing, Inc. rev B 20 Cross-Tech Manufacturing, Inc Gendreau Road Crosslake, MN All rights reserved.

Owner / Operator Instruction & Maintenance Manual

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