GR60 GR72 HEAVY-DUTY ROTARY CUTTER Published 02/07 Part No.00 775743C OPERATOR’S MANUAL This Operator's Manual is an integral part of the safe operation of this machine and must be maintained with the unit at all times. READ, UNDERSTAND, and FOLLOW the Safety and Operation Instructions contained in this manual before operating the equipment. C01Cover RHINO ® 1020 S. Sangamon Ave. Gibson City, IL 60936 800-446-5158 Email: parts@servis-rhino.com ©2007 Alamo Group Inc. $0.
To the Owner/Operator/Dealer All implements with moving parts are potentially hazardous. There is no substitute for a cautious, safe-minded operator who recognizes the potential hazards and follows reasonable safety practices. The manufacturer has designed this implement to be used with all its safety equipment properly attached to minimize the chance of accidents. BEFORE YOU START!! Read the safety messages on the implement and shown in your manual.
In order to reduce accidents and enhance the safe operation of mowers, Alamo Group Ag Division, in cooperation with other industry manufacturers has developed the AEM/FEMA Industrial and Agricultural Mower Safety Practices video and guide book. The video will familiarize and instruct mower-tractor operators in safe practices when using industrial and agricultural mowing equipment.
Alamo Group Ag.
TABLE OF CONTENTS SAFETY SECTION ............................................................................................................... 1-1 Safety Messages ................................................................................................................................................ 1-2 Decal Location .................................................................................................................................................. 1-12 Decal Description .............
DRIVING THE TRACTOR AND IMPLEMENT .................................................................................................. 4-23 Starting the Tractor ........................................................................................................................................... 4-24 Brake and Differential Lock Setting................................................................................................................... 4-24 Raising the Mower ..................................
SAFETY SECTION Safety Section 1-1 © 2007 Alamo Group Inc.
SAFETY Safety Messages SAFETY A safe and careful operator is the best operator. Safety is of primary importance to the manufacturer and should be to the owner/operator. Most accidents can be avoided by being aware of your equipment, your surroundings, and observing certain precautions. The first section of this manual includes a list of Safety Messages that, if followed, will help protect the operator and bystanders from injury or death.
SAFETY Never operate the Tractor or Implement until you have read and completely understand this Manual, the Tractor Operator’s Manual, and each of the Safety Messages found in the Manual or on the Tractor and Implement. Learn how to stop the tractor engine suddenly in an emergency. Never allow inexperienced or untrained personnel to operate the Tractor and Implement without supervision. Make sure the operator has fully read and understood the manuals prior to operation.
SAFETY Never allow children to operate, ride on, or come close to the Tractor or Implement. Usually, 16-17 year-old children who are mature and responsible can operate the implement with adult supervision, if they have read and understand the Operator’s Manuals, been trained in proper operation of the tractor and Implement, and are physically large enough to reach and operate the controls easily. (SG-11) SAFETY Do not mount the Tractor while the tractor is moving.
SAFETY Periodically inspect all moving parts for wear and replace when necessary with authorized service parts. Look for loose fasteners, worn or broken parts, and leaky or loose fittings. Make sure all pins have cotter pins and washers. Serious injury may occur from not maintaining this machine in good working order. (SG-21) Before transporting the Tractor and Implement, determine the proper transport speeds for you and the equipment.
SAFETY Always read carefully and comply fully with the manufacturer’s instructions when handling oil, solvents, cleansers, and any other chemical agent. (SG-22) SAFETY Never run the Tractor engine in a closed building or without adequate ventilation. The exhaust fumes can be hazardous to your health. (SG-23) KEEP AWAY FROM ROTATING ELEMENTS to prevent entanglement and possible serious injury or death. (SG-24) Never allow children to play on or around Tractor or Implement.
SAFETY There are obvious and hidden potential hazards in the operation of this Mower. REMEMBER! This machine is often operated in heavy brush and in heavy weeds. The Blades of this Mower can throw objects if shields are not properly installed and maintained. Serious injury or even death may occur unless care is taken to insure the safety of the operator, bystanders, or passersby in the area. Do not operate this machine with anyone in the immediate area. Stop mowing if anyone is within 100 yards of mower.
SAFETY Avoid mowing in reverse direction when possible. Check to make sure there are no persons behind the mower and use extreme care when mowing in reverse. Mow only at a slow ground speed where you can safely operate and control the tractor and mower. Never mow an area that you have not inspected and removed debris or foreign material. (SGM-8) SAFETY Do not put hands or feet under mower decks. Blade Contact can result in serious injury or even death.
SAFETY Rotary Mowers are capable under adverse conditions of throwing objects for great distances (300 feet or more) and causing serious injury or death. Follow safety messages carefully.
SAFETY Relieve hydraulic pressure prior to doing any maintenance or repair work on the Implement. Place the Implement on the ground or securely blocked up, disengage the PTO, and turn off the tractor engine. Push and pull the Remote Cylinder lever in and out several times prior to starting any maintenance or repair work. (S3PT-9) SAFETY The rotating parts of this machine continue to rotate even after the PTO has been turned off.
SAFETY PARTS INFORMATION Rhino mowers use balanced and matched system components for blade carriers, blades, cuttershafts, knives, knife hangers, rollers, drivetrain components, and bearings. These parts are made and tested to Rhino specifications. Non-genuine "will fit" parts do not consistently meet these specifications. The use of “will fit” parts may reduce mower performance, void warranties, and present a safety hazard. Use genuine Rhino mower parts for economy and safety.
SAFETY Decal Location NOTE: Rhino supplies safety decals on this product to promote safe operation. Damage to the decals may occur while in shipping, use, or reconditioning. Rhino cares about the safety of its customers, operators, and bystanders, and will replace the safety decals on this product in the field, free of charge (Some shipping and handling charges may apply). Contact your Rhino dealer to order replacement decals SAFETY . GR60/72 02/07 © 2007 Alamo Group Inc.
SAFETY PART NO. QTY TYPE DESCRIPTION 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 00725746 00773723 00749117 00756004 00756005 00756494 00769737 00769736 00760657 00763613 00763977 D103 03200347 D302 D303 D318 D316 00771283 nfs 2738332 00776481 00776031 00775743C 10058000 00024100 02959924 1 1 1 1 1 1 1 1 1 1 1 1 * 2 2 2 2 1 1 2 1 1 1 3 6 3 PELIGRO PELIGRO DANGER DANGER DANGER DANGER DANGER WARNING IMPORTANT INSTRUCT INSTRUCT INSTRUCT REFLECT LOGO L. NAME NAME NAME WARRANTY SER. PLT.
SAFETY Decal Description SAFETY Peligro Translation, If you do not know how to read English, please find someone who knows how to read English. P/N 00725746 PELIGRO! Spanish Translation for Driveline Safety P/N 00773723 DANGER! Multi-Hazard Decal (Refer To Front Cover) P/N 00749117 DANGER! Guard Missing, Do Not Operate. If you see this decal, Do Not Operate the mower until the shield has been replaced. P/N 00756004 GR60/72 02/07 © 2007 Alamo Group Inc.
SAFETY DANGER! Rotating Driveline Keep Away, Contact can cause death. DANGER! Make certain that drivelines are correct length and are securely attached. P/N 00756494 DANGER! Keep Away Thrown Objects. Inspect the area before mowing and remove foreign material that could become mower thrown objects. P/N 00769737 WARNING! Maintain shields and deflectors in good condition. Failure to do so may lead to injury or even death. P/N 00769736 GR60/72 02/07 © 2007 Alamo Group Inc.
SAFETY For safety and to guarantee optimum product reliability always use genuine RHINO replacement parts. SAFETY P/N 00760657 Attention! Do not operate until all slip clutches are properly adjust and are not frozen. P/N 00763613 Operator's Manual (with repair parts) and warranty was attached to this implement during final inspection. P/N 00763977 WARNING! Avoid Bodily Injury, Use 540RPM PTO Speed Only. P/N D103 GR60/72 02/07 © 2007 Alamo Group Inc.
SAFETY Logo Product Name: Rhino SAFETY P/N D302 Logo Product Name: Rhino P/N D303 GR72 Logo P/N D316 GR60 Logo P/N D318 GR60/72 02/07 © 2007 Alamo Group Inc.
SAFETY INFORMATION - 5 Year Gearbox Warranty SAFETY P/N 00771283 Red Reflectors P/N 2738332 INFORMATION - Operator’s Manual Inside P/N 00776481 GR60/72 02/07 © 2007 Alamo Group Inc.
SAFETY Federal Laws and Regulations This section is intended to explain in broad terms the concept and effect of federal laws and regulations concerning employer and employee equipment operators. This section is not intended as a legal interpretation of the law and should not be considered as such. Employer-Employee Operator Regulations U.S. Public Law 91-596 (The Williams-Steiger Occupational and Health Act of 1970) OSHA This Act Seeks: DUTIES Sec.
INTRODUCTION SECTION Introduction Section 2-1 © 2007 Alamo Group Inc.
INTRODUCTION INTRODUCTION This Rotary Cutter is designed with care and built with quality materials by skilled workers. Proper assembly, maintenance, and operating practices, as described in this manual, will help the owner/operator get years of satisfactory service from the machine. The purpose of this manual is to familiarize, instruct, and train. The Assembly Section instructs the owner/ operator in the correct assembly of the Cutter using standard and optional equipment.
INTRODUCTION INTRODUCTION These rugged Cutters are designed for heavy-duty work. They can mow pastures, cut brush up to 3" (GR60) and 4" (GR72) in diameter, and control grass and weeds on highways or industrial sites. For Non-Agricultural use, OSHA, ASAE, SAE, and ANSI standards require the use of Chain Guards or Solid Skirts at all times.
INTRODUCTION Attention Owner/Operator BEFORE OPERATING THIS MACHINE: INTRODUCTION 1. Carefully read the Operator’s Manual, completely understand the Safety Messages and instructions, and know how to operate correctly both the tractor and implement. 2. Fill out the Warranty Card in full. Be sure to answer all questions, including the Serial Number of the implement. Mail within 30 days of delivery date of this implement.
ASSEMBLY SECTION Assembly Section 3-1 © 2007 Alamo Group Inc.
ASSEMBLY A-Frame Assembly (Figure Asm-00049) ASSEMBLY To assemble the Mower’s A-Frame, follow the procedures listed below: 1. Attach the mower’s right and left upright braces (1) to the mower deck frame with one 5/8x 2” bolt (7) and locknut (9) one each side as illustrated in Asm-0049. 2. Place the Flexible Hitch Top Link (3) and inner Bushing (4) between the right and left upright braces. Position the A-frames two Long Braces (2) on the respective outside of the Upright Braces (1).
ASSEMBLY Tailwheel Assembly (Asm-0050) To assemble the Mower’s TailWheel, follow the procedures listed below. NOTE: Certain steps may have been performed by the manufacturer before delivery. GR60/72 02/07 © 2007 Alamo Group Inc. Assembly Section 3-3 ASSEMBLY 1. To attach the tailwheel assembly (2) to the tailwheel beam (1), place a 1-1/2” flat washer (16) on the tailwheel assembly shaft.
ASSEMBLY Check Chains (Extra Equipment) for Lift-Models (Figure Asm-0011) ASSEMBLY Check Chains are available for attachment to front of Mower as an accessory. Check chains are used to control cutting height and especially allow Mower to be lowered to the same preset cutting height effortlessly. Install lower end of check chain (4) to hitch ears (6) through lower holes (7) using bolts, nuts and lockwashers(8). Tighten securely.
ASSEMBLY Stabilizer Bars or Sway Chains must be installed and adjusted tightly. Without these bars or chains, serious damage to the Driveline can occur, and broken parts could cause bodily injury to the operator or bystanders. Stabilizer Bars or Sway Chains are available at most tractor dealerships. 4. Raise the Cutter to check clearance between the Driveline and Cutter Deck. Set the lift stop on the tractor to ascertain that the Driveline does not strike the deck.
ASSEMBLY Deflector Corner Plate (Figure Asm-0004) ASSEMBLY 1. Attach the corner plate (1) to the side of the deck with a 1/2" x 1-1/4" Bolt (2), and Locknut (2). Rear Deflectors (Standard Equipment) Rear Deflector (Figure Asm-0005) 1. Attach both Deflectors (1 & 2) to deck using 1/ 2" x 1-1/4" Bolts (5) and Locknuts (6). In center of deck use Bolt 8) and Locknut (6) to tie both Deflectors (1 & 2) together. 2.
ASSEMBLY Front Chainguards (Optional Equipment) Chainguards Front and Rear Chain Guards (Optional Equipment) are recommended for higher than normal usage (100 hours or more per year) and will provide protection from thrown objects with careful operation. Chain Guards must be maintained in good repair by replacing missing or worn sections or by replacing completely when worn or damaged. Front Chain Guard (Figure Asm-0006) Rear Chain Guards (Optional Equipment) Rear Chain Guard (Figure Asm-0007) 1.
ASSEMBLY Driveline Attachment - GR60 (Figure Asm-0051) ASSEMBLY Before starting assembly, make certain that all paint, dirt, and grease are removed from gearbox shaft (1). To ease assembly apply a light coat of grease to splines and assemble. Do not assemble a driveline without a shield. Entanglement in rotating shafts can kill. 1. Attach the slip clutch end of the driveline to the gearbox input shaft securely. Make certain that the slip clutch is fully onto the input shaft splines.
OPERATION SECTION Operation Section 4-1 © 2007 Alamo Group Inc.
OPERATION OPERATION RHINO GR60/72 HEAVY-DUTY ROTARY MOWER OPERATION INSTRUCTIONS Rhino Gyro 60 and 72 (GR60/72) heavy-duty rotary mowers are manufactured with quality material by skilled workers. These rugged mowers are engineered to cut material up to 4” in diameter and designed for commercial, industrial, and heavy-duty agriculture conditions such as maintaining rights-of-way, shredding crops, and cutting prunings in vineyards, orchards, and groves.
OPERATION 1. Standard Equipment and Specifications GR72 Horsepower Required (Min.) 30 HP 40 HP Cutting Capacity (Max.) 4” 4” Cutting Height (Min.) 1-9/16” 1-3/4” Safety Deflector Chain Guard Chain Guards Cutting Width 60” 72” Overall Width 67-1/4” 79-1/4” Overall Length 108” 118” Base Unit Weight (Approx.) 1370 lbs. 1578 lbs.
OPERATION 2. OPERATOR REQUIREMENTS OPERATION Safe operation of the unit is the responsibility of a qualified operator. A qualified operator has read and understands the implement and tractor Operator’s Manuals and is experienced in implement and tractor operation and all associated safety practices. In addition to the safety messages contained in this manual, safety decals are affixed to the implement and tractor.
OPERATION 3. TRACTOR REQUIREMENTS The tractor used to operate the mower must have the power capacity to lift, pull, and operate the Power Take Off (PTO) at the mower’s rated speed while traveling at a ground speed between 2 and 5 MPH. Operating the mower with a tractor that does not meet the following requirements may cause tractor or mower damage and be a potential danger to the operator and passersby.
OPERATION 3.3 Tractor Horsepower The power required to operate a mower is determined by the tractor PTO horsepower. For most mowing conditions, the GR60/72 mower requires at tractor with at least 30 and 40 HP, respectively. Operating the mower with a tractor that does not have adequate power may damage the tractor engine. Exceeding 90 HP may cause mower damage by overpowering the unit in heavy cutting conditions. OPERATION 3.
OPERATION 3.6 Power Take Off (PTO) Depending on the unit, the mower is designed to operate at a PTO speed of 540 or 1000 RPM. Most tractors operate at either 540, or a combination of 540 and 1000 RPM PTO speeds. The operating speed of the mower and tractor can be determined by the number of splines on the driveline yoke and PTO output shaft. Those operating at 540 RPM will have a 6-spline shaft and those operating at 1000 RPM will have a 21-spline shaft.
OPERATION 4.1 Boarding the Tractor Use both hands and equipped handrails and steps for support when boarding the tractor. Never use control levers for support when mounting the tractor. Seat yourself in the operator’s seat and secure the seat belt around you. OPERATION Never allow passengers to ride on the tractor or attached equipment. Riders can easily fall off and be seriously injured or killed from falling off and being ran over.
OPERATION 5. STARTING THE TRACTOR The operator must have a complete understanding of the placement, function, and operational use of all tractor controls before starting the tractor. Review the tractor operator’s manual and consult an authorized dealer for tractor operation instructions if needed. Essential Tractor Controls: • Conduct all pre-start operation inspection and service according to the tractor operator’s manual. • Make sure all guards, shields, and other safety devices are securely in place.
OPERATION Always shut the Tractor completely down, place the transmission in park, and set the parking brake before you or anyone else attempts to connect or disconnect the Implement and Tractor hitches. (S3PT-15) 1. OPERATION 2. 3. 4. 5. 6. 7. 8. Make sure the tractor is equipped with the correct PTO shaft. Change shafts if needed. Shorten or remove the tractor drawbar to avoid interference when raising and lowering the mower. Board the tractor and start the engine.
OPERATION 7.1 Setting Mower Height 1. 2. 5. 6. 7. 8. Level the mower side to side by manipulating one lower lift arm length. On most tractors, at least one of the lift arms is designed to allow for manipulation of its length. Shortening or extending will allow for deck leveling from side to side. Securely block up the mower at this height. Remove the bolts securing the tailwheel beam positioning bracket to the support brackets and allow the tailwheel to rest at ground level.
OPERATION 7.2 Setting Deck Pitch To facilitate safe and efficient operation, the mower should be operated with the deck approximately 3/4” LOWER IN THE FRONT THAN THE REAR. The correct deck pitch is obtained as follows: OPERATION 1. Lower the mower until the rear of the mower is resting securely on its tail wheel. 2. Then slowly lower the 3-point lift arms further until the front of the mower is at least 3/4” lower than the rear of the mower. 3.
OPERATION 8.1 Driveline Length Check Before operating the Implement, check to make sure the Implement input driveline will not bottom out or become disengaged. Bottoming out occurs when the inner shaft penetrates the outer housing until the assembly becomes solid-it can shorten no more. Bottoming out can cause serious damage to the Tractor PTO by pushing the PTO into the Tractor and through the support bearings or downward onto the PTO shaft, breaking it off. A broken drive line can cause personal injury.
OPERATION GR60 Mowers Only Shorten the driveline profiles as follows: OPERATION • • • • • • • Remove the driveline from the tractor. Raise and lower the mower to find the position with the shortest distance between the tractor PTO shaft and cutter gearbox. Shut down the tractor and securely block the mower in this position. Pull driveline apart and reattach yoke to PTO shaft. Hold driveline sections parallel to one another and measure back 1” from yoke of each shaft and place mark on opposite section.
OPERATION 9. PRE-OPERATION INSPECTION AND SERVICE Before each use, a pre-operation inspection and service of the implement and tractor must be performed. This includes routine maintenance and scheduled lubrication, inspecting that all safety devices are equipped and functional, and performing needed repairs. DO NOT operate the unit if the pre-operation inspection reveals any condition affecting safe operation. Perform repairs and replacement of damaged and missing parts as soon as noticed.
OPERATION 9.1 Tractor Pre-Operation Inspection/Service OPERATION Refer to the tractor operator’s manual to ensure a complete pre-operation inspection and scheduled service is performed according to the manufacturers recommendations.
OPERATION • • • • • Ensure deflectors and/or chainguards are in position and not damaged. Replace worn, broken, and missing pieces. OPS-R-0038 All Safety Shields, Guards and Safety devices including (but not limited to) - the Deflectors, Chain Guards, Steel Guards, Gearbox Shields, PTO integral shields, and Retractable Door Shields should be used and maintained in good working condition. All safety devices should be inspected carefully at least daily for missing or broken components.
OPERATION • OPERATION • • • • • • Ensure the tailwheel beam position support bolts are properly intalled and tightened. Inspect all bolts and screws and tighten to the recommended torque. OPS-R-0045_A Ensure the tractor PTO master shield and the mower slip clutch shield are in place, lowered, and in good condition. Ensure the driveline integral shield is in good condition and rotates freely. Ensure the driveline slip clutch (if equipped) is properly adjusted.
OPERATION • • Inspect blades and blade bolts for looseness and excessive wear. Make sure the mower is securely blocked up before crawling beneath. Replace damaged, worn and missing blades as complete sets to maintain rotary balance during operation. Ensure carrier hub nut is tightened with the cotter pin inserted and spread. OPS-R-0041 9.3 Cutting Component Inspection Inspect blade pan and blade assembly for the following: OPS-U-0031 GR60/72 02/07 © 2007 Alamo Group Inc.
OPERATION Inspect the Blades daily for abnormal wear.
OPERATION Rotary Mower PRE-OPERATION Inspection Mower ID#________________ Make ____________________ Date: Shift ________________ ____________________ Condition at Start of Shift Item Specific Comments if not O.K.
OPERATION OPERATION Tractor PRE-OPERATION Inspection Mower ID#________________ Make ____________________ Date: Shift ________________ ____________________ Before conducting the inspection, make sure the tractor engine is off, all rotation has stopped and the tractor is in park with the parking brake engaged. Make sure the mower is resting on the ground or securely blocked up and all hydraulic pressure has been relieved. Condition at Start of Shift Item Specific Comments if not O.K.
OPERATION 10. DRIVING THE TRACTOR AND IMPLEMENT Safe tractor transport requires the operator possess a thorough knowledge of the model being operated and precautions to take while driving with an attached implement. Ensure the tractor has the capacity to handle the weight of the implement and the tractor operating controls are set for safe transport. To ensure safety while driving the tractor with an attached implement, review the following.
OPERATION 10.1 Starting the Tractor OPERATION The procedure to start the tractor is model specific. Refer to the tractor operator’s manual for starting procedures for your particular tractor. Consult an authorized dealer if the starting procedure is unclear. Ensure the 3-point control lever is in the lowered position and the PTO is disengaged before starting the tractor. OPS-U-0033 10.2 Brake and Differential Lock Setting Make sure the tractor brakes are in good operating condition.
OPERATION 10.3 Raising the Mower be raised to avoid driveline damage. OPS-R-0042 10.4 Driving the Tractor and Mower Start off driving at a slow speed and gradually increase your speed while maintaining complete control of the tractor and mower. Moving slowly at first will also prevent the tractor from rearing up and loss of steering control. The tractor should never be operated at speeds that cannot be safely handled or which will prevent the operator from stopping quickly during an emergency.
OPERATION OPERATION Be particularly careful when transporting the Implement with the Tractor. Turn curves or go up hills only at a low speed and using a gradual steering angle. Rear mounted implements move the center of gravity to the rear and remove weight from the front wheels. Make certain, by adding front ballast, that at least 20% of the tractor’s weight is on the front wheels to prevent rearing up, loss of steering control or Tractor tip-over.
OPERATION Inclines and ditches should be approached along a line which is at an angle as shown. This type of path will reduce the possibility of over-collapse of the driveline and resulting damage. If the gradient is so steep that such an approach increases the possibility of a tractor roll-over, select an alternate crossing path. resulting in possible damage and premature wear. OPS-R-0022 11.
OPERATION Many varied objects, such as wire, cable, rope, or chains, can become entangled in the operating parts of the mower head. These items could then swing outside the housing at greater velocities than the blades. Such a situation is extremely hazardous and could result in serious injury or even death. Inspect the cutting area for such objects before mowing. Remove any like object from the site. Never allow the cutting blades to contact such items. (SGM-6) OPERATION 11.
OPERATION Rotary Mowers are capable under adverse conditions of throwing objects for great distances (300 feet or more) and causing serious injury or death. Follow safety messages carefully.
OPERATION 11.4 PTO RPM and Ground Speed OPERATION Ground speed for mowing will depend upon the height, type, and density of vegetation to be cut. Recommended speed for efficient mower performance is between 2 and 5 mph. Operate the mower at its full rated PTO speed to maintain blade speed for a clean cut. Refer to the tractor operator’s manual or the tractor instrument panel for the engine speed and gear to provide the required PTO and desired ground speed.
OPERATION Mow only in conditions where you have clear visibility in daylight or with adequate artificial lighting. Never mow in darkness or foggy conditions where you cannot clearly see at least 100 yards in front and to the sides of the tractor and mower. Make sure that you can clearly see and identify passersby, steep slopes, ditches, drop-offs, overhead obstructions, power lines, debris and foreign objects. If you are unable to clearly see these type of items discontinue mowing.
OPERATION Do not let the Blades turn when the Mower Deck is raised for any reason, including clearance or for turning. Raising the Mower deck exposes the Cutting Blades which creates a potentially serious hazard and could cause serious injury or even death from objects thrown from the Blades. (SRM-7) OPERATION Large, dense, or wet vegetation may need to be mowed in two or more passes to achieve a uniform cut. In such conditions, raise the cutting height to 12” or more on the first pass.
OPERATION 11.6 Shutting Down the Implement To shut down the implement, first bring the tractor to a complete stop. Then slow down the implement by reducing the engine speed before disengaging the PTO. Wait for all motion to stop before proceeding to drive or shut down the tractor. 12. DISCONNECTING THE MOWER FROM THE TRACTOR Before disconnecting the mower, the PTO must be disengaged and blade rotation at a complete stop. Move the mower to a level storage location and lower it to the ground.
OPERATION OPERATION To disconnect the mower, first extend the tractor 3point hitch top link to remove tension on the top link hitch pin. When the pin is loose and easy to rotate, remove the pin from the mower. Next remove both lower hitch pins. After disconnecting the 3 lift points, remove the mower driveline from the tractor PTO shaft. Lay the driveline down carefully on support flat to avoid damaging the driveline or its shield.
OPERATION 13. MOWER STORAGE Properly preparing and storing the mower at the end of the season is critical to maintaining its appearance and to help ensure years of dependable service. The following are suggested storage procedures: • • • • • • It is critical that driveline clutches slip when an obstacle or heavy load is encountered to avoid mower and/or tractor damage.
OPERATION OPERATION Before transporting the tractor and mower, idle the tractor engine, disengage the PTO and wait for all mower moving parts to come to a complete stop. Once all mower parts are completely stopped, raise the mower to transport height. NOTE: When raising the mower, maintain 1” clearance between the driveline and mower deck. If additional mower deck height is needed for safe transport, disconnect the driveline from the tractor and secure its end to the mower deck.
OPERATION 14.1 Transporting on Public Roadways Extreme caution should be used when transporting the tractor and implement on public roadways. The tractor must be equipped with all required safety warning features including a SMV emblem and flashing warning lights to alert drivers of the tractor’s presence. Remember that roadways are primarily designed for automotive drivers and most drivers will not be looking out for you, therefore, you must look out for them.
OPERATION OPERATION When operating on public roads, have consideration for other road users. Pull to the side of the road occasionally to allow all following traffic to pass. Do not exceed the legal speed limit set in your country for agricultural tractors. Always stay alert when transporting the tractor and implement on public roads. Use caution and reduce speed if other vehicles or pedestrians are in the area. OPSU- 0022 Reduce speed before turning or applying the brakes.
OPERATION Use adequately sized and rated trailers and equipment to transport the tractor and implement. Consult an authorized dealer to determine the proper equipment required. Using adequately sized chains, heavy duty straps, cables and/or binders, securely tie down both the front and rear of the tractor utilizing the proper tie down locations as specified by the tractor manufacturer.
OPERATION 15. TROUBLESHOOTING GUIDE Possible Cause Remedy Not Cutting Clean Blades dull. Blade rotation incorrect. Using Straight Blades Carrier RPM too low. Mower not leveled. Sharpen or replace Blades. Use correct Blade for Carrier. Use Fan Blades in grass. Increase PTO speed. Adjust machine level (in very heavy weeds, 1/2” to 1” low in front). Use offset Adapter to move Mower to the left. Reduce ground speed. Free blades. Replace Blade Bolts. OPERATION Problem Tires mashing down grass.
OPERATION Possible Cause Remedy Blades Wear Fast Cutting in sandy or rocky conditions Blades too soft. Increase cutting height. Replace Blades with hardened, high-quality, Rhino Blades from the manufacturer. Blade Bolts Working Loose Bolts not tightened. Bolt hole elongated or oversized. Locknut worn out. Tighten Bolts to 300 ft./lbs. Replace Blade Carrier. Replace Locknut. Broken Cross or Cups Load too high for joint. Use protective device with joint. Check joint angles and phasing.
OPERATION Problem Possible Cause Remedy Slip Clutch Slipping Excessive load. Reduce ground speed and/or raise (See Clutch Maintenance). OPERATION Excessively Springs weak. Improper adjustment. Too much power for Slip Clutch. Friction Facings worn. Oil on Facings. Friction Facings glazed. Oil Blowing out Vent Plug Flat bottomed Vent Plug or shallow cavity Plug. Oil level too high. Gearbox Leaking Driveline Integral Shields Rattling or Not Turning Freely GR60/72 02/07 © 2007 Alamo Group Inc.
MAINTENANCE SECTION Maintenance Section 5-1 © 2007 Alamo Group Inc.
MAINTENANCE MAINTENANCE Before operating your Rotary Cutter, make sure it is properly lubricated and thoroughly inspected. Only a minimum of time and effort is required to regularly lubricate and maintain this machine to provide long life and trouble free operation. Always disengage the PTO before raising the Rotary Cutter for transporting or making adjustments. Lubrication (Figure Mnt-0014) Do not let excess grease collect on or around parts, particularly when operating in sandy areas.
MAINTENANCE Gearbox Lubrication (Figure Mnt-0001 and Mnt-0011) Tail Wheel Lubrication Tail Wheel Bearings are packed at the factory with heavy-duty bearing grease. Grease Fittings are provided in the Wheel Hub and Tail Wheel Beam. Grease after 10 hours of use (Mnt-0004). GR60/72 02/07 © 2007 Alamo Group Inc. Maintenance Section 5-3 MAINTENANCE The Gearbox was filled with oil at the factory. However, it is necessary that the operator check the Gearbox before operations.
MAINTENANCE Driveline Lubrication MAINTENANCE Grease Fittings are located on the Cross Assembly of each U-Joint and on the Round Housing. Grease the UJoint after each 8 hours of use. Do not force grease through the Needle Cup Assemblies. Grease the Round Housing after every 8 hours of use, except in sandy soil conditions. Some PTO-to-Hitch connections may necessitate cutting a hole in the shields to be able to align the Grease Fitting holes for lubrication. (Mnt-0015 and Mnt-0016).
MAINTENANCE Blade Servicing Blade Sharpening Always sharpen both blades at same time to maintain balance. Follow original sharpening pattern as shown in Mnt-0008. Always sharpen blades by grinding. DO NOT heat and pound out edge. Do not sharpen blade to a razor edge, but leave a 1/16" blunt edge. Do not sharpen back side of blade. Avoid personal injury. Always block the cutter up to prevent if from falling when the blades and or carrier are being serviced. Replace bent or broken blades with new blades.
MAINTENANCE MAINTENANCE Blade Removal To remove blades for sharpening or replacement, remove the cover plate on deck of cutter near gear box. Remove lock nut from blade bolt. NOTE: Inspect lock nut after removal and replace if threads are damaged. Always replace nut when replacing blade bolt. When installing blades be sure and check blade bolt pivot diameter for wear. Replace bolt if worn more than 1/4 inch at any point.
MAINTENANCE Slip Clutch - GR60 Seasonal Slip Clutch Maintenance It is important that the clutches slip when an obstacle or load heavier than the clutch setting is encountered. Therefore, if the machine sits outside longer than 30 days and is exposed to rain and/or humid air it is important to make sure that the clutch lining plates are not rusted/corroded together. Before using the cutter use the following procedure to make sure the clutch will slip and give the overload protection required. 1.
MAINTENANCE MAINTENANCE Torque Limiter - GR72 Avoid overheating of the Torque Limiter by too long or too frequent slipping, as this can damage the friction plates and limiter parts. When checking Torque Limiter for overheating, DO NOT touch with hand. Torque Limiter could be extremely hot and cause severe burn. If an adjustment is required, this may be done in the field by following the procedure outlined below. Following these instructions will give maximum rated torque and long life. (See Mnt-0018). 1.
MAINTENANCE GR60 Gearbox Maintenance QTY 1 1 1 1 1 1 1 1 1 3 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 1 10 4 1 1 1 1 AR AR AR 8 1 1 1 1 1 AR AR AR DESCRIPTION Casing Bearing, Lower Output Seal, Lower Output Nut, Slotted Cotter Pin Shaft, Output Gear, Output Nut, Slotted Cotter Pin Bearing, Upper Output, Inner & Outer Input Spacer, Long Lockwasher Bolt, Top Cover Plug, Pressure Vent Washer, Sealing Cover, Top Inspection Gasket, Top Cover Shim (0.10) Shim (0.25) Shim (0.
MAINTENANCE Right Angle Gearbox (Outboard) Assembly & Disassembly Procedures MAINTENANCE Input Shaft Removal 1. 2. 3. 4. 5. 6. 7. 8. Place Gearbox on appropriate work surface. Remove Vent Plug (item #16) or Complete Top Cover (item #18). Turn Gearbox upside down allowing Oil to drain from gearbox into catch pan for proper disposal. Turn Gearbox right side up and drop bottom into a hole for support or lay it on its side laying flat.
MAINTENANCE Output Shaft Installation 1. 2. 3. 6. 7. Input Shaft Installation 1. 2. 3. 4. 5. 6. 7. 8. Install Inner Bearing Cup (item # 12) into back of main Housing (item # 1). Make sure Cup is seated into Main Housing. Install Outer Bearing Cup (item # 12) into back of Front Bearing Cover (item # 24). Make sure Cup is Seated into front Cover. Install Spacer (item # 13) onto Back side of Input Shaft (item # 26), Install Spacer (item # 28) onto input Shaft (item # 26) from the front.
MAINTENANCE MAINTENANCE Storage Your rotary cutter represents an investment from which you should get the greatest possible benefit. Therefore, when the season is over, the cutter should be thoroughly checked and prepared for storage so that a minimum amount of work will be required to put it back into operation for the next season. The following are suggested storage procedures: 1. Thoroughly clean the cutter. 2. Lubricate the cutter as covered in Maintenance Section. 3.
RHINO LIMITED WARRANTY 1. 2. LIMITED WARRANTIES 1.01. Servis-Rhino warrants for one year from the purchase date to the original non-commercial, governmental, or municipal purchaser (“Purchaser”) and warrants for six months to the original commercial or industrial purchaser (“Purchaser”) that the goods purchased are free from defects in material or workmanship. 1.02.
TO THE OWNER/OPERATOR/DEALER In addition to the standard Limited Warranty shown on the facing page, Servis-Rhino also provides: 1.) ONE-YEAR (12 months) {or 6 month for Commercial/Industrial Users} LIMITED WARRANTY on the DRIVELINE components provided they have been properly maintained† and have not been subjected to abuse or mis-use. 2.
GR 60/72 ROTARY CUTTER GR60/72-SOM-02/07 Printed U.S.
An Alamo Group Company SERVIS-RHINO® 1020 S. Sangamon Ave. Gibson City, IL 60936-9907 Please fold (do not tear), tape, and drop in any mailbox. PLEASE FILL OUT OWNER WARRANTY REGISTRATION INFORMATION SIGN, AND DROP LAST COPY IN ANY MAILBOX. IMPORTANT! TO PLACE THIS WARRANTY IN EFFECT, THIS WARRANTY REGISTRATION MUST BE FILLED OUT, SIGNED, AND MAILED WITHIN 30 DAYS OF DELIVERY DATE OF THIS MACHINE. DEALER AND PURCHASER MUST SIGN.
SERVIS-RHINO WARRANTY REGISTRATION INFORMATION MONTH Servis-Rhino Model Serial No. DAY YEAR Purchase Date Purchaser Last Name Street & No., RFD, Box, &/or Apt. No. First Name City M.I.
2. REMOVE WHITE COPY FOR CUSTOMER RECORDS. 3. REMOVE YELLOW COPY FOR DEALERS RECORDS. 4. MAIL LAST CARD POSTAGE FREE. SERVIS-RHINO® WARRANTY REGISTRATION INFORMATION MONTH Servis-Rhino Model Serial No. Purchaser Last Name Street & No., RFD, Box, &/or Apt. No. City DAY YEAR Purchase Date First Name M.I.
2. REMOVE WHITE COPY FOR CUSTOMER RECORDS. 3. REMOVE YELLOW COPY FOR DEALERS RECORDS. 4. MAIL LAST CARD POSTAGE FREE. SERVIS-RHINO® WARRANTY REGISTRATION INFORMATION MONTH Servis-Rhino Model Serial No. Purchaser Last Name Street & No., RFD, Box, &/or Apt. No. City DAY YEAR Purchase Date First Name M.I.
