©2007 Alamo Group Inc.
DRIVING THE TRACTOR AND IMPLEMENT..................................................................................................4-23
Starting the Tractor ...........................................................................................................................................4-24
Brake and Differential Lock Setting...................................................................................................................4-24
Raising the Mower ............................................................................................................................................4-25
Driving the Tractor and Mower..........................................................................................................................4-25
OPERATING THE TRACTOR AND IMPLEMENT............................................................................................4-27
Foreign Debris Hazards ....................................................................................................................................4-28
Bystanders/Passersby Precautions ..................................................................................................................4-28
Engaging the Power Take Off (PTO) ................................................................................................................4-29
PTO RPM and Ground Speed ..........................................................................................................................4-30
Operating the Mower ........................................................................................................................................4-30
Shutting Down the Implement...........................................................................................................................4-33
DISCONNECTING THE MOWER FROM THE TRACTOR ..............................................................................4-33
MOWER STORAGE .........................................................................................................................................4-35
TRANSPORTING THE TRACTOR AND IMPLEMENT ....................................................................................4-35
Transporting on Public Roadways ....................................................................................................................4-37
Hauling the Tractor and Implement...................................................................................................................4-38
TROUBLESHOOTING GUIDE .........................................................................................................................4-40
MAINTENANCE SECTION...................................................................................................5-1
Lubrication (Figure Mnt-0014).............................................................................................................................5-2
Gearbox Lubrication (Figure Mnt-0001 and Mnt-0011).......................................................................................5-3
Tail Wheel Lubrication ........................................................................................................................................5-3
Driveline Lubrication ...........................................................................................................................................5-4
Blade Servicing ...................................................................................................................................................5-5
Blade Sharpening ...............................................................................................................................................5-5
Blade Removal....................................................................................................................................................5-6
Blade Carrier Removal........................................................................................................................................5-6
Blade Carrier Installation.....................................................................................................................................5-6
Slip Clutch - GR60 ..............................................................................................................................................5-7
Seasonal Slip Clutch Maintenance .....................................................................................................................5-7
Torque Limiter - GR72 ........................................................................................................................................5-8
Seasonal Torque Limiter Maintenance ...............................................................................................................5-8
GR60 Gearbox Maintenance ..............................................................................................................................5-9
Right Angle Gearbox (Outboard) Assembly & Disassembly Procedures..........................................................5-10
Input Shaft Removal .........................................................................................................................................5-10
Output Shaft Removal.......................................................................................................................................5-10
Parts Inspection ................................................................................................................................................5-10
Output Shaft Installation 11
Input Shaft Installation ......................................................................................................................................5-11
Storage .............................................................................................................................................................5-12
Proper Torque For Fasteners ...........................................................................................................................5-12
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