Alamo SL72 Operator's Manual

Skid steer rotary mower

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Published 03/08

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. C01-

Cover

ALAMO INDUSTRIAL

1502 E. Walnut

Seguin, Texas 78155

830-372-3551

Email: parts@alamo-industrial.com

OPERATOR'S MANUAL

SL72

SKID STEER

ROTARY MOWER

Part No. 00777576C

$0.00

Table of Contents

Summary of Contents for Alamo SL72

Page 1: Rotary Mower
READ, UNDERSTAND, and FOLLOW the Safety and Operation Instructions contained in this manual before operating the equipment. C01- Cover ALAMO INDUSTRIAL 1502 E. Walnut Seguin, Texas 78155 830-372-3551 Email: parts@alamo-industrial.com ® ©2008 Alamo Group Inc. SL72 SKID STEER ROTARY MOWER Part No. 00777576C $0.00...
Page 2 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 acci- dents.
Page 3 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.
Page 4 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...
Page 5: Table Of Contents
Blade Bolt Inspection ... 4-15 DRIVING THE SKID STEER AND MOWER ... 4-18 Driving the Skid Steer ... 4-19 OPERATING THE SKID STEER AND MOWER ... 4-20 Foreign Debris Hazards ... 4-20 Bystander/Passersby Precautions ... 4-21 ©2008 Alamo Group Inc.
Page 6 HYDRAULIC LINES, COUPLERS, & ADAPTERS ... 5-3 BLADE SERVICING ... 5-4 BLADE SHARPENING ... 5-4 BLADE REMOVAL ... 5-5 BLADE CARRIER REMOVAL ... 5-5 BLADE CARRIER INSTALLATION ... 5-5 STORAGE ... 5-6 PROPER TORQUE FOR FASTENERS ... 5-6 ©2008 Alamo Group Inc.
Page 8: General Safety Instructions And Practices
Safety Messages. Always use good common sense to avoid hazards. Si no lee ingles, pida ayuda a alguien que si lo lea para que le traduzca las medidas de seguridad. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SG-2) (SG-3)
Page 9: Operator Safety Instructions And Practices
SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SG-30) (SG-31) “Wait a minute...Save a life!”...
Page 10 Take scheduled work breaks to help prevent these potentially impaired operating conditions. Never operate the Implement and Tractor in a fatigued or bored mental state which impairs proper and safe operation. SL72 03/08 © 2008 Alamo Group Inc. SAFETY EXPOSURE LOUD...
Page 11: Equipment Operation Safety Instructions And Practices
A-Frame. Lower the implement carefully to the ground. Do not put hands or feet under lifted components. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SG-34)
Page 12 Operate the Tractor controls from the tractor seat only. Never allow children or other persons to ride on the Tractor or Implement. Falling off can result in serious injury or death. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (S3PT-5) Be careful when operating or transporting this...
Page 13 Operate the Tractor and/or Implement controls only while properly seated in the Tractor seat with the seat belt securely fastened around you. Implement may cause serious injury or death. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SG-11) (SG-13) Wear oil impenetrable gloves, safety...
Page 14 Stop mowing immediately if blades strike a foreign object. Repair all damage and make certain rotor or blade carrier is balanced before resuming mowing. (SGM-5) SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SGM-1) Inspect the area before Safety Section 1-8...
Page 15 Mower with the wrong size Tractor can cause Mower component damage and equipment failure resulting in possible serious injury or death. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SGM-6) Check to make sure there are no...
Page 16 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. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SGM-15) (SPU-1)
Page 17: Connecting Or Disconnecting Implement Safety Instructions And Practices
Dropping implement in transport can cause serious damage to the tractor and/or Implement and possibly cause the operator or others to be injured or killed. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (S3PT-15) (S3PT-18)
Page 18 Make certain that at least 20% of the tractor’s weight is on the front wheels to maintain safe steerage. Slow down on rough or uneven surfaces. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SG-6) Determine the maximum...
Page 19: Maintenance And Service Safety Instructions And Practices
(SG-5) Do not modify or alter this Implement. Implement, any of its components or any Implement function. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (S3PT-8) Place the Implement on the ground or securely (S3PT-9)
Page 20 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. SL72 03/08 © 2008 Alamo Group Inc. SAFETY (SG-14) (SG-20)
Page 21: Concluding Safety Instructions And Practices
See your Authorized Dealer for proper repairs. Alamo Industrial 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 Alamo Industrial specifications.
Page 22: Decal Location
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).
Page 23 00755742 00756059 00776608 00757139 00777521 03200347 00776031 31006H5C 00024100 02959924 00777576C Supplied by Tractor Manufacturer. Replace if missing from tractor. SL72 03/08 © 2008 Alamo Group Inc. SAFETY TYPE PELIGRO WARNING DANGER DANGER DANGER INSTRUCT INSTRUCT DANGER DANGER WARNING DANGER...
Page 24: Decal Description
00776609 DANGER! Keep Away Thrown Objects. Inspect the area before mowing and remove foreign material that could become mower thrown objects. P/N 00769737 SL72 03/08 © 2008 Alamo Group Inc. SAFETY Safety Section 1-18...
Page 25 00777519 Operator's Manual (with repair parts) and warranty was attached to this implement during final inspection. P/N 00763977 IMPORTANT - Use only Genuine Alamo Industrial replacement parts. P/N 02925100 WARNING! Pinch Points P/N 02962764 SL72 03/08 ©...
Page 26 WARNING! Never use your hand to check for oil leaks. Always use paper or cardboard. P/N 00756059 WARNING! - Not a Step. Do not board from this side. 00776608 Name LOGO - Alamo Industrial P/N 00757139 SL72 03/08 © 2008 Alamo Group Inc. SAFETY Safety Section 1-20...
Page 27 Provided by Tractor Manufacturer. Replace if missing on tractor. P/N 03200347 Read Operator’s Manual! The operator’s manual is located inside this canister. missing order one from your dealer. P/N 00776031 SL72 03/08 © 2008 Alamo Group Inc. SAFETY If the manual is Safety Section 1-21...
Page 28: Federal Laws And Regulations
(Refer to U.S. Dept. of Labor, Employment Standard Administration, Wage & Home Division, Child Labor Bulletin #102.) SL72 03/08 © 2008 Alamo Group Inc. SAFETY This section is not intended as a legal...
Page 74 Indicates an imminently hazardous situation that, if not avoided, MAY result in MINOR INJURY. Identifies special instructions or procedures that, if not strictly observed, could result in damage to, or destruction of the machine, attachments or the environment. SL72 03/08 © 2008 Alamo Group Inc. INTRODUCTION Introduction Section 2-2...
Page 75 The SL72 rotary mower is designed to be operated on skid steer power units. These rugged Mowers are designed for medium-duty work and are related to cut vegetation up to 2” in diameter. The Power Unit must be equipped with an Operator Front Protective Door. Serious injury or death can result from a thrown object hitting an unprotected operator.
Page 76 NOTE: Warranties are honored only if completed “Owner Registration and Warranty” forms are received by Alamo Group within thirty days of delivery of the mower. 3. Record the Mower Model and Serial Numbers on the Warranty page at the end of the Operator’s Manual.
Page 78: Dealer Setup Instructions
6. Repeat procedure on other link assembly. 7. Place bushing between both arms above mower link and install 5/8” bolt through bush- ing an fasten with 5/8” locknut. SL72 03/08 © 2008 Alamo Group Inc. ASSEMBLY (SG-8) Assembly Section 3-2...
Page 79: Hitch Assembly
(1), flatwashers (2), and locknuts (3). 3. Tighten all bolts and nuts to the recommended torque. (Refer to Image Asm-R-0275) SL72 03/08 © 2008 Alamo Group Inc. ASSEMBLY Front Chain Guard Assembly Assembly Section 3-3 Hitch Assembly...
Page 80: Installing Hydraulic Motor
1/2” x 1- 1/2” Bolts (4), Flatwashers (2), and Locknuts (1). 2. Tighten all bolts and nuts to the recommended torque. (Refer to Image Asm-R-0272) SL72 03/08 © 2008 Alamo Group Inc. ASSEMBLY free deck Rear Chain Guard Assembly Assembly Section 3-4...
Page 81: Side Deflector Assembly
3. Tighten all bolts and nuts to the recommended torque. (Refer to Image Asm-R-0274) SL72 03/08 © 2008 Alamo Group Inc. ASSEMBLY Side Deflector Assembly Skid Shoe Assembly Assembly Section 3-5...
Page 82: Optional Gauge Wheel Assembly
4. Finally attach the wheel (10) to the Tailwheel beam with the cotter pin (11) and Washer (12). 5. Tighten all bolts and nuts to the recommended torque. (Refer to Image Asm-R-0277) SL72 03/08 © 2008 Alamo Group Inc. ASSEMBLY Optional Gauge Wheel Assembly Assembly Section 3-6...
Page 84 Pictures contained in this section are intended to be used as a visual aid to assist in explaining the operation of a rotary mower and are not necessarily of a SL72 cutter. Some pictures may show shields removed for purposes of clarity.
Page 85 1. SL72 Standard Equipment and Specifications Cutting Width 72” Cutting Capacity (Diameter) 2” maximum Cutting Height Range 1-9/16” to 18” Overall Width 78” Overall Length 94” Front and Rear Guards Standard Hitch Universal Mount, Quick Weight (Approximate) 1485 lbs. Drive Protection...
Page 86: Operator Requirements
SL72 03/08 © 2008 Alamo Group Inc. OPERATION Drugs and alcohol will affect an operator’s Before operating the Tractor or...
Page 87: Skid Steer Requirements
A protective door is shipped as standard equipment with SM72 mower from factory. OPS-SS-0017a SL72 03/08 © 2008 Alamo Group Inc. OPERATION operator protective door. capacity of the skid steer-(See Page 4-3) Operation Section 4-5...
Page 88: Hitch
The mower is not shipped equipped with hydraulic hose coupler ends. Coupler ends must be purchased from an authorized skid steer dealer to ensure mower and skid steer auxiliary hydraulic couplers are compatible. SL72 03/08 © 2008 Alamo Group Inc. OPERATION Operation Section 4-6...
Page 89: Getting On And Off The Skid Steer
Never leave the seat until the skid steer, its engine and all moving mower parts are completely stopped. SL72 03/08 © 2008 Alamo Group Inc. OPERATION Flow Volume...
Page 90: Starting The Skid Steer
Start the Power Unit only when properly seated in the Power Unit seat. Starting a Power Unit in gear can result in injury or death. Read the Power Unit Operator’s Manual for proper starting instructions. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SPU-15) Review the skid steer operator’s manual and consult an...
Page 91: Connecting The Mower To The Skid Steer
Raise and roll back the mounting plate until the mower hitch plate is securely seated flat against the skid steer mounting plate. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SPU-32) (SG-14) Operation Section 4-9...
Page 92: Pre-Operation Inspection And Service
Make sure all pins have cotter pins and washers. Serious injury may occur from not maintaining this machine in good working order. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SPU-31) (SG-21)
Page 93: Mower Pre-Operation Inspection/Service
Replace bent or broken blades with new blades. NEVER ATTEMPT TO STRAIGHTEN, WELD, OR WELD HARDFACING ON BLADES SINCE THIS WILL LIKELY CRACK OR OTHERWISE DAMAGE THE BLADE WITH SUBSEQUENT FAILURE AND POSSIBLE SERIOUS INJURY FROM THROWN BLADES. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SGM-10) Operation Section 4-11 (SPU-28)
Page 94 Ensure chain guards and rubber deflectors are in position and not damaged. Replace worn, broken, and missing sections immediately. • Inspect that all bolts and screws are in position and are properly torqued. OPS-SS-0019 SL72 03/08 © 2008 Alamo Group Inc. OPERATION times. Operation Section 4-12...
Page 95 Ensure carrier hub nuts are tightened with the cotter pin inserted and spread. • Inspect the condition of the deck skid shoes and the skid shoe attaching hardware. OPS-R-0012 SL72 03/08 © 2008 Alamo Group Inc. OPERATION Operation Section 4-13...
Page 96: Cutting Component Inspection
Failure to replace abnormally worn blades may lead to catastrophic failure of the blades and ejection of the broken part with tremendous force which may cause serious bodily injury or death. OPS-U-0032 SL72 03/08 © 2008 Alamo Group Inc. OPERATION Operation Section 4-14...
Page 97: Blade Bolt Inspection
Failure to replace abnormally worn blade bolts may lead to catastrophic failure of the blades and ejection of the broken part which may cause serious bodily injury or death. Always replace Blade Bolts with new bolts whenever replacing the Blades. OPS-U-0037 SL72 03/08 © 2008 Alamo Group Inc. OPERATION Operation Section 4-15...
Page 98 Blade bolts are tight Wheel lug nuts are tight Transport locks are in good condition Operator’s Signature: DO NOT OPERATE an UNSAFE TRACTOR or MOWER SL72 03/08 © 2008 Alamo Group Inc. OPERATION Make ____________________ ________________ Shift Condition at Start of Shift...
Page 99 The air filter is in good condition Operator’s Signature: DO NOT OPERATE an UNSAFE TRACTOR or MOWER This Inspection Form may be freely duplicated for extra copies. SL72 03/08 © 2008 Alamo Group Inc. OPERATION Make ____________________ ________________ Shift Condition at...
Page 100: Driving The Skid Steer And Mower
When operating in traffic always use the Power Unit's flashing warning lights and reduce your speed. Be aware of traffic around you and watch out for the other guy. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SPU-21) Operation Section 4-18...
Page 101: Driving The Skid Steer
Blades hitting the ground also produces a severe shock load on the mower and to the mower blades resulting in possible damage and premature wear. SL72 03/08 © 2008 Alamo Group Inc. OPERATION Operation Section 4-19...
Page 102: Operating The Skid Steer And Mower
Inspect the condition of the mower and make any needed repairs immediately. Make sure the blades are not damaged and the carrier is balanced before resuming operation. SL72 03/08 © 2008 Alamo Group Inc. OPERATION Inspect the area before (SGM-5) Remove all them.
Page 103: Bystander/Passersby Precautions
Do not put hands or feet under mower decks. Blade Contact can result in serious injury or even death. Stay away until all motion has stopped and the decks are securely blocked up. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SRM-1) (SGM-9)
Page 104: Operating Speed And Ground Speed
Normal ground speed range is from 0 to 5 mph. Use slow mowing speeds when operating on or near steep slopes, ditches, drop-offs, overhead obstructions, power lines, or when debris and foreign objects are to be avoided. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SPU-29) Operation Section 4-22...
Page 105: Shutting Down The Mower
SL72 03/08 © 2008 Alamo Group Inc. OPERATION If you are unable to clearly see these types of (SPU-27) The Power Unit’s operator protective structure...
Page 106: Disconnecting The Mower From The Skid Steer
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. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SPU-32) (SG-14) Operation Section 4-24...
Page 107: Mower Storage
Never allow children to play on or around Power Unit or Implement. Children can slip or fall off the Equipment and be injured or killed. crushing themselves or others. SL72 03/08 © 2008 Alamo Group Inc. OPERATION Children can cause the Implement to shift or fall (SPU-24)
Page 108: Transporting The Skid Steer And Mower
Always stay alert when transporting the skid steer and mower on public roads. Use caution and reduce speed if other vehicles or pedestrians are in the area. SL72 03/08 © 2008 Alamo Group Inc. OPERATION (SPU-13)
Page 109: Hauling The Skid Steer And Mower
If dur- ing transport a hard braking, sharp turning, or swerving action was performed, stop at the next safe location to inspect the security of the load. OPS-SS-0015 SL72 03/08 Operation Section 4-27 © 2008 Alamo Group Inc.
Page 110: Troubleshooting Guide
4. Bearing or gears set up improperly. Gear Box Noisy 1. Rough Gears. 2. Worn Bearing. SL72 03/08 © 2008 Alamo Group Inc. OPERATION POSSIBLE REMEDY Tighten if loose. Free Blades so they swing. Weigh Blades.
Page 111 3. Locknut worn out. Blades Wears Too Fast 1. Cutting in sandy conditions. 2. Cutting in rocky conditions. SL72 03/08 © 2008 Alamo Group Inc. OPERATION POSSIBLE REMEDY Replace seal. Replace oil seal and shaft. Replace or repair shaft.
Page 114: Lubrication Information
Bearings into the lower Gearbox cavity. Refill to the test plug level. Check the oil again before operation, after every 40 hours of mowing, and at the beginning and end of each mowing season. SL72 03/08 © 2008 Alamo Group Inc. MAINTENANCE DESCRIPTION FREQUENCY...
Page 115: Hydraulic Lines, Couplers, & Adapters
GEARBOX FILLER PLUG HYDRAULIC LINES, COUPLERS, & ADAPTERS Keep all hoses and adapters tight. Repair any leaks immediately. Do not overtighten hose end fittings. Tighten to specifications only. (See Chart Below) SL72 03/08 Maintenance Section 5-3 © 2008 Alamo Group Inc.
Page 116: Blade Servicing
Avoid personal injury. Always block the mower up to prevent if from falling when the blades and/ or carrier are being serviced. Avoid personal injury. Always wear safety glasses and face protection when grinding blades. . SL72 03/08 © 2008 Alamo Group Inc. MAINTENANCE (SGM-10) Blade Maintenance Maintenance Section 5-4...
Page 117: Blade Removal
Retighten the nut to 400 ft. pounds. Install cotter pin and spread. Always recheck spindle output shaft slotted blade carrier retaining nut torque after a few hours operation. SL72 03/08 © 2008 Alamo Group Inc. MAINTENANCE See Image. Maximum Bolt Wear...
Page 118: Storage
NOTE: These values apply to fasteners as received from supplier, dry or when lubricated with normal engine oil. They do not apply if special graphited or molydisulphide greases or other extreme pressure lubricants are used. This applies to both UNF fine and UNC coarse threads. SL72 03/08 Maintenance Section 5-6 © 2008 Alamo Group Inc.
Page 120: Limited Warranty
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.
Page 121 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 require- ments of tractor operators: REQUIRED OF THE OWNER:...
Page 122 SL72-SOM-03/08 P/N 00777576C Printed U.S.A...

Alamo SL72 Operator's Manual

Safety Section

Introduction Section

Assembly Section

Operation Section

Maintenance Section

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