A60 A72 ROTARY MOWER Published 01/08 Part No. 00757274C 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 ALAMO INDUSTRIAL ® 1502 E. Walnut Seguin, Texas 78155 830-372-3551 Email: parts@alamo-industrial.com ©2008 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.
Table of Contents SAFETY SECTION......................................................................................... 1-1 General Safety Instructions and Practices ........................................................................................................ 1-2 Equipment Operation Safety Instructions and Practices................................................................................... 1-5 Transporting Safety Instructions and Practices................................................
Starting the Tractor ......................................................................................................................................... Brake and Differential Lock Setting................................................................................................................. Raising the Mower .......................................................................................................................................... Driving the Tractor and Mower..................
In order to reduce accidents and enhance the safe operation of mowers, Alamo Industrial, 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 Industrial Division is willing to provide one (1) AEM Mower Safety Practices Video Please Send Me: VHS Format – AEM/FEMA Mower Operator Safety Video DVD Format – AEM/FEMA Mower Operator Safety Video Mower Operator’s Manual AEM Mower Operator’s Safety Manual Requester Name Phone: Requester Address: City State Zip Code Mower Model: Serial Number: Date Purchased: Dealer Salesperson: Dealership Name: Dealership Location: Mail to: AEM Video Services 1502 E Walnut street Seguin, TX 78155 Or Fax t
SAFETY SECTION Safety Section 1-1 ©2008 Alamo Group Inc..
SAFETY General Safety Instructions and Practices SAFETY A 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 Engine Exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the state of California to cause cancer and birth defects or other reproductive harm. (SG-30) Operator Safety Instructions and Practices The rotating parts of this machine continue to rotate even after the PTO has been turned off.
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 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. Children can slip or fall off the Equipment and be injured or killed. Children can cause the Implement to shift or fall crushing themselves or others.
SAFETY DO NOT operate this Implement on a Tractor that is not properly maintained. Should a mechanical or Tractor control failure occur while operating, immediately shut down the Tractor and perform repairs before resuming operation. Serious injury and possible death could occur from not maintaining this Implement and Tractor in good operating condition. (SG-36) Avoid contact with hot surfaces of the engine or muffler. Use gloves and eye protection when servicing hot components.
SAFETY SAFETY Be sure you have adequate knowledge of the property you will be working on. Take time to make yourself aware of any area underground lines or cables. Contact with buried lines or cable could result in serious injury or death. If in doubt about buried utility lines call 811 before digging or 1-800-258-0808. (SBH-6) Do not operate Mower if excessive vibration exists. Shut down PTO and the Tractor engine. Inspect the Mower to determine the source of the vibration.
SAFETY Start tractor only when properly seated in the Tractor seat. Starting a tractor in gear can result in injury or death. Read the Tractor operators manual for proper starting instructions. (SG-13) Never run the Tractor engine in a closed building or without adequate ventilation. The exhaust fumes can be hazardous to your health. (SG-23) Do not exceed the rated PTO speed for the Implement. Excessive PTO speeds can cause Implement driveline or blade failures resulting in serious injury or death.
SAFETY SAFETY 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(90 m) 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.
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) Do not mow with two machines in the same area except with Cab tractors with the windows closed.
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 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) When attaching the Implement input driveline to the Tractor PTO, it is important that the connecting yoke spring activated locking collar slides freely and the locking balls are seated securely in the groove on the Tractor PTO shaft.
SAFETY Transport only at speeds where you can maintain control of the equipment. Serious accidents and injuries can result from operating this equipment at high speeds. Understand the Tractor and Implement and how it handles before transporting on streets and highways. Make sure the Tractor steering and brakes are in good condition and operate properly. Before transporting the Tractor and Implement, determine the proper transport speeds for you and the equipment.
SAFETY Your driving vision may be reduced or impaired by the tractor, cab, or implement. Before driving on public roadways identify any limited vision areas, and make adjustments to your operating position, mirrors, and the implement transport position so that you can clearly see the area where you will be traveling, and any traffic that may approach you. Failure to maintain adequate vision of the public roadway and traffic can result in serious injury or even death.
SAFETY Never attempt to lubricate, adjust, or remove material from the Implement while it is in motion or while tractor engine is running. (SG-20) 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.
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 SAFETY Decal Location NOTE: Alamo supplies safety decals on this product to promote safe operation. Damage to the decals may occur while in shipping, use, or reconditioning. Alamo 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 Alamo dealer to order replacement decals. A60/A72 01/08 ©2008 Alamo Group Inc.
SAFETY PART NO. QTY TYPE DESCRIPTION 1. 2. 3. 4. 5. 6. 6a. 7. 8. 9. 10. 10a. 11. 12. 13. 14. 00725746 00749117 00756004 00756005 00756494 02925100 00773723 00769736 00769737 00763613 00763977 D103 03200347 02960766 00757139 00769872 00769873 1 1 1 1 1 1 1 1 1 1 1 1 * 2 2 2 2 PELIGRO DANGER DANGER DANGER DANGER IMPORTANT PELIGRO WARNING DANGER INSTRUCT INSTRUCT INSTRUCT REFLECT LOGO L.
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 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 DANGER! Rotating Driveline Keep Away, Contact can cause death. P/N 00756005 A60/A72 01/08 ©2008 Alamo Group Inc.
SAFETY DANGER! Make certain that drivelines are correct length and are securely attached. IMPORTANT - Use only Genuine Alamo Industrial replacement parts. P/N 02925100 PELIGRO! Spanish Translation for Driveline Safety P/N 00773723 WARNING! Maintain shields and deflectors in good condition. Failure to do so may lead to injury or even death. P/N 00769736 A60/A72 01/08 ©2008 Alamo Group Inc.
SAFETY SAFETY DANGER! Keep Away Thrown Objects. Inspect the area before mowing and remove foreign material that could become mower thrown objects. P/N 00769737 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 A60/A72 01/08 ©2008 Alamo Group Inc.
SAFETY Slow Moving Vehicle Decal. Keep SMV reflector clean and visible. DO NOT transport or operate without the SMV. Provided by Tractor Manufacturer. Replace if missing on tractor. P/N 03200347 SAFETY NAME LOGO - Alamo Industrial P/N 02960766 Name LOGO - Alamo Industrial P/N 00757139 NAME LOGO - A60 00769872 A60/A72 01/08 ©2008 Alamo Group Inc.
SAFETY SAFETY NAME LOGO - A72 00769873 Red Reflectors P/N 2738332 A60/A72 01/08 ©2008 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 ©2008 Alamo Group Inc.
INTRODUCTION INTRODUCTION This Rotary Mower 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 Mower using standard and optional equipment.
INTRODUCTION INTRODUCTION These mowers are available in lift-type models only. These rugged Mowers are designed for heavy-duty work. They can mow pastures, cut brush up to 3" 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 ©2008 Alamo Group Inc.
ASSEMBLY A-Frame Assembly ASSEMBLY To assemble the Mower’s A-Frame, follow the procedures listed below (Figure Asm-0001): 1. Place one rear brace (3) (end with smaller hole) to the inside of each lift lug located in the mid section of the mower on each side of the gearbox. Position the braces so when attached to the lugs, the braces bend towards the center of the mower. Align the holes of the lugs and braces and insert a 5/8” x 1-1/2” bolt (6) and retain with a 5/8” locknut (5).
ASSEMBLY Tailwheel Assembly To assemble the Mower’s TailWheel, follow the procedures listed below (Figure Asm-0002). Note: Certain steps may have been performed by the manufacturer before delivery. Front and Rear Deflectors (Standard Equipment) and Chain Guards (Optional Equipment at Extra Cost) Front and Rear rubber-fabric Deflectors are Standard Equipment and Front and Rear Chain Guards are optional .
ASSEMBLY Deflectors: Front and Rear Deflectors (Standard Equipment) are recommended for the average user and will provide protection from thrown objects with proper operation under normal conditions. Deflectors must be maintained in good repair or replaced after no more than two inches of wear off lower edge. Front Rubber Fabric Deflectors (Standard Equipment) ASSEMBLY Front Deflector (Figure Asm-R-0085) 1.
ASSEMBLY Chainguards (Optional Equipment at Extra Cost) 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.
ASSEMBLY Driveline Attachment 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 ASSEMBLY shield. Entanglement in rotating shafts can kill. . 1. Attach the slip clutch end of the driveline to the gearbox input shaft securely. (Figure Asm0090) Make certain that the slip clutch is fully onto the input shaft splines.
ASSEMBLY Check Chains - Extra Equipment - for Lift-Models Check Chains are available for attachment to front of Mower as an accessory. (Figure Asm-0092) 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. Cutting height is then set by placing proper chain link in keyhole slot.
ASSEMBLY ASSEMBLY Offset Adapter Hitch - Extra Equipment 1. Fasten the Offset Adapter Hitch weldment to the lift lugs using the Hitch Pin holes. Fasten the Adjustable Leg to the left side lug if the Mower is to offset to the left. The Mower will make a cleaner cut behind the wheel tracks if it is offset to the left. Reverse the Assembly for right offset (Figure Asm-0010). 2. Install the Brace Bars. Fasten the chain end to the rear mounting hole in the Gearbox Base Plate.
OPERATION SECTION Operation Section 4-1 ©2008 Alamo Group Inc.
OPERATION A60/72 HEAVY-DUTY ROTARY MOWER OPERATION INSTRUCTIONS OPERATION Alamo 60 and Alamo 72 (A60/72) rotary mowers are manufactured with quality material by skilled workers. These heavy-duty mowers are engineered for mowing grass, shredding stalks, maintaining pastures, and cutting other vegetation up to 3” in diameter. The mower is equipped with protective deflectors and/or chain guards to prevent objects being thrown from the mower by the blades, however, no shielding is 100% effective.
OPERATION 1. Standard Equipment and Specifications A72 Horsepower Required (Min.) 30 HP 40 HP Cutting Capacity (Max.) 3” 3” Cutting Height 1 9/16” - 12” 1 9/16” - 12” Safety Deflector Std. Std. Cutting Width 60” 72” Overall Width 67-1/4” 79-1/4” Overall Length 108” 118” Weight (Approx.) 810 lbs. 975 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 signs 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 4. Tractor Horsepower OPERATION The horsepower required to operate the mower depends on several operating factors including the vegetation to be cut, terrain condition, operator experience, condition of the mower and tractor, and others. For most mowing conditions, the A60 mower requires a tractor with a minimum of 30 HP and the A72 mower requires a tractor with a minimum of 40 HP. Operating the mower with a tractor that does not have adequate power may damage the tractor engine.
OPERATION 4.3 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 or a 1-3/4” 20 spline shaft.
OPERATION 5.1 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 6. 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 Never work under the Implement, the framework, or any lifted component unless the Implement is securely supported or blocked up to prevent sudden or inadvertent falling which could cause serious injury or even death. (SG-14) 8.1 Setting Mower Height 3. 4. 5. 6. 7. 8. Park the tractor and mower on level ground. Using the 3-point hitch control lever, position the front of the mower with the side skids 1” less off the ground than desired cut height.
OPERATION 8.2 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 9.1 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 driveline can cause personal injury.
OPERATION 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 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) 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 The operator’s manual and safety signs affixed on the unit contain important instructions on the safe and proper use of the equipment. Maintain these important safety features on the implement in good condition to ensure the information is available to the operator at all times. • OPERATION • • • • • • Ensure the manual canister is secured to the equipment with the operator’s manual inside. Ensure all safety signs are in place and legible. Replace missing, damaged, and illegible decals.
OPERATION 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. Missing, broken, or worn items must be replaced at once to reduce the possibility of injury or death from thrown objects, entanglement, or blade contact.
OPERATION • OPERATION • • • Inspect the gearbox oil level. A low oil level is a warning sign that the gearbox may be cracked or its seal is damaged and needs replacement. Ensure the gearbox vent is in place and free from clogs. OPS-R-0040 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.
OPERATION 10.3 Cutting Component Inspection Inspect blade pan and blade assembly for the following: OPS-U-0031 OPERATION Inspect the Blades daily for abnormal wear. REPLACE BOTH BLADES on that carrier IMMEDIATELY if either blade has: • • • • • Become bent or deformed from it’s original shape or Any cracks are visible, or Deep gouges in the blade’s surface are persent, or Gouges or chipped areas in the cutting edge are larger than 1/2”(12.
OPERATION OPERATION Rotary Mower 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 Tractor PRE-OPERATION Inspection Mower ID#________________ Make ____________________ Date: Shift ________________ ____________________ Condition at Start of Shift Item Specific Comments if not O.K.
OPERATION 11. 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 11.1 Starting the Tractor 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 Make sure the tractor brakes are in good operating condition.
OPERATION OPERATION 11.3 Raising the Mower Using the tractor 3-point hitch control lever, raise the mower off the ground about 6”, or just high enough to clear any ground obstacles. When raising the mower, make sure all connection points are securely attached and at least 1” clearance is maintained between the driveline and the deck. If necessary, place an upper lift stop on the 3-point hitch control lever to limit the height the mower can be raised to avoid driveline damage. OPS-R-0042 11.
OPERATION 11.5 Crossing Ditches and Steep Inclines Damage resulting from over-collapse of the driveline’s inner profile and its outer housing may allow the driveline to come loose from the Tractor which could cause bodily injury to the operator or bystanders and/or extensive damage to the Tractor or Implement. OPS-R-0020 When confronted with an incline or ditch, do not approach from an angle which is perpendicular or straight on as damage to or over-collapse of the driveline may occur.
OPERATION 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.
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) 12.
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 12.4 PTO RPM and Ground Speed 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(3-8 kph). 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 Do not mow with two machines in the same area except with Cab tractors with the windows closed. (SGM-11) 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(90 m) in front and to the sides of the tractor and mower.
OPERATION When you get to the end of a pass, slightly raise the mower (2-4”) before turning. Never raise the mower entirely while the blades are turning. If the mower must be raised higher than 12” from ground level, disengage the tractor PTO and wait for all mower rotation to come to a complete stop before proceeding to raise the mower. Do not let the Blades turn when the Mower Deck is raised for any reason, including clearance or for turning.
OPERATION OPERATION Then lower the mower to the desired height and mow the vegetation a second time. If possible, select a mowing pattern that is at a 90 degree angle to the first pass to reduce streaking for a more uniform cut. OPS-R-0044 Stay alert and watch for trees, low hanging limbs, power lines, and other overhead obstacles and solid ground objects while you are operating. Use care to avoid hitting these items. OPS-R-0028_A A60/A72 01/08 ©2008 Alamo Group Inc.
OPERATION 12.6 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. 13. 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 to avoid damaging the driveline or its shield.
OPERATION 14. 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 Make sure that all tractor flashing warning lights, headlights, and brake/tail lights are functioning properly before proceeding onto public roads. While newer model tractors have plenty of lighting to provide warning signals and operating lighting, most older models are only equipped with operating lights. Consult an authorized tractor dealer for lighting kits and modifications available to upgrade the lighting on older tractor models.
OPERATION OPERATION Reduce speed before turning or applying the brakes. Ensure that both brake pedals are locked together when operating on public roads. OPS-U- 0023 15.2 Hauling the Tractor and Implement Before transporting a loaded tractor and implement, measure the height and width dimensions and gross weight of the complete loaded unit. Ensure that the load will be in compliance with the legal limits set for the areas that will be traveled through.
OPERATION Arrange the chains so that when tightened, the chains are pulling downward and against themselves. Carefully tighten the securing chains or other fasteners using boomers or binders to apply maximum tension. Use extreme care when attaching and removing the securing devices as the extreme tension involved when released has the potential to inflict serious injury. A60/A72 01/08 ©2008 Alamo Group Inc.
OPERATION 16. TROUBLESHOOTING GUIDE Problem Possible Cause Remedy Not Cutting Clean Blades dull. blade rotation incorrect. 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 Carrier RPM too low. Mower not leveled. Tires mashing down grass. Ground speed too fast.
OPERATION 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. Slow down ground speed or raise Mower. Reduce speed to 540 RPM. Install thrust washer. Needle Rollers Have Brinelled Into Cup and Cross Load too high for joint. Check for small joint angles. Use Slip Clutch.
OPERATION Gearbox Leaking Damaged Oil Seal. No Oil Seal. Oil too light. Bearings loose. Vent Plug stopped up. Oil level too high. Gasket damaged. Bolts loose. Replace Seal. Install Oil Seal. Use NLGI-000 Grease, or Mobilux EP023, or Gulf EP023, or Sun 740-A EP Grease. Replace Oil Seal and Shaft. Replace Shaft or repair Race. Replace Seal. Replace Seal or use a sealant on O.D. of Seal. Adjust Bearings. Open Vent Plug. Drain oil to proper level. Replace Gasket. Tighten Bolts. Install Shields deformed.
MAINTENANCE SECTION Maintenance Section 5-1 ©2008 Alamo Group Inc.
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. MAINTENANCE Always disengage the PTO before raising the Rotary Cutter for transporting or making adjustments. Lubrication Do not let excess grease collect on or around parts, particularly when operating in sandy areas.
MAINTENANCE DRIVELINE LUBRICATION Grease Fittings are located on the Cross Assembly of each U-Joint and on the telescoping tubes. Grease the U-Joint after each 8 hours of use. Figure Mnt-R-0088. Do not force grease through the Needle Cup Assemblies. Grease the telescoping tubes after every 8 hours use. Some PTO-to-Hitch connections may necessitate cutting a hole in the shields to be able to align the Grease Fitting holes for lubrication. Lubricate the shield bearings every 16 hours. Figure Mnt-R-0089.
MAINTENANCE GEARBOX MAINTENANCE The Gearbox has been filled with lubricant to the Test Plug Level prior to shipment. However, you should check the oil level at Test Plug before operating, and frequently thereafter. The gearbox should not require additional lubricant unless the box is cracked or a seal is leaking. It is recommended that the oil be checked daily, and level plug be removed after every 8 to 10 hours of operation and oil added until it runs out Test Plug hole.
MAINTENANCE When attaching PTO yoke to tractor PTO shaft, it is important that spring-activated locking collar slides freely and locking balls are seated in groove on PTO shaft. A loose shaft could slip off and result in personal injury or damage to cutter. BLADE SERVICING IMPORTANT! When sharpening blades, grind each blade the same amount to maintain balance. The difference in blade weights should not exceed 1 ounce. Unbalanced blades will cause excessive vibration which can damage gear box bearings.
MAINTENANCE BLADE REMOVAL MAINTENANCE To remove blades for sharpening or replacement, remove the cover plate on deck of mower near gearbox. 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. Install blade bolts with partially worn side of bolt either toward or away from center.
MAINTENANCE The slip clutch should be checked periodically and adjusted to compensate for wear. The lining plates are 1/8" thick when new. Replace after 1/32" wear. If the mower has been idle for an extended period of time, or in wet weather, before operating check to be sure the friction lining plates are not rusted/coroded together. Should this occur refer to the procedure described in the "Seasonal Clutch Maintenance" section on the next page. There are two friction lining plates in the slip clutch.
ALAMO-INDUSTRIAL LIMITED WARRANTY 1. 2. LIMITED WARRANTIES 1.01. Alamo Industrial 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 1.02. Manufacturer will replace for the Purchaser any part or parts found, upon examination at one of its factories, to be defective under normal use and service due to defects in material or workmanship. 1.03.
TO THE OWNER/OPERATOR/DEALER To keep your implement running efficiently and safely, read your manual thoroughly and follow these directions and the Safety Messages in this Manual. The Table of Contents clearly identifies each section where you can easily find the information you need. The OCCUPATIONAL SAFETY AND HEALTH ACT (1928.51 Subpart C) makes these minimum safety requirements of tractor operators: REQUIRED OF THE OWNER: 1.
A60/A72- SOM- 01/08 Printed U.S.