Table of Contents
Maintenance Instructions __________ 43
MAINTENANCE SCHEDULE CHART _______ 43
IMPORTANT TIPS FOR CARE
OF THE KOHLER ENGINE ________________ 44
Fuel System _________________________ 44
Starting/Stopping _____________________ 44
Cooling System ______________________ 44
Air Cleaner System ____________________ 44
Oil__________________________________ 44
LUBRICATION _________________________ 45
Engine Oil ___________________________ 45
Engine Break-In Oil ___________________ 45
Checking Engine Crankcase Oil Level ____ 45
Changing Engine Crankcase Oil/Oil Filter __ 45
Mower Deck Gearbox Lubrication ________ 46
DSD52 Mower Deck Lubrication _________ 47
Tractor PTO Gearbox Lubrication ________ 48
Checking Gearbox Oil Level ____________ 48
Changing Gearbox Oil ________________ 48
Gear Axle Lubrication _________________ 48
Hydrostatic Transmission Fluid _________ 48
Checking Hydrostatic
Transmission Fluid Level ______________ 48
Grease Fitting and Oil Point Lubrication __ 49
CLEANING ____________________________ 52
Engine Air Cleaner System _____________ 52
Turbine Precleaner ___________________ 52
Donaldson Radialseal™ Air Cleaner ______ 53
Engine Cooling System ________________ 54
Air Intake System ____________________ 54
Cylinder Head Cooling Fins ____________ 55
Grass Buildup in Mower Housing ________ 55
GHS Blower __________________________ 56
GHS Exhaust Screen __________________ 57
Hydrostatic Transmission Cooling Fins ___ 57
CHECKING/SERVICING __________________ 57
Security of Air Filtration Components ____ 57
Battery ______________________________ 57
Electrolyte Level _____________________ 57
Cleaning the Terminals ________________ 58
Charging the Battery __________________ 58
Tire Pressure _________________________ 58
Wheel Bolt Torque ____________________ 58
Sharpen Mower Blades ________________ 58
Drive Belts ___________________________ 59
Mower Deck Gearbox Oil Seals __________ 60
Spark Plugs __________________________ 60
Fuel Lines and Clamps _________________ 60
Engine Starter ________________________ 60
Blade Brake Action ____________________ 60
Safety Switch System__________________ 60
Forward Speed Control Friction Lock _____ 61
REPLACING/REPAIRING _________________ 61
Drive Belts ___________________________ 61
Engine PTO Drive Belt ________________ 63
Jackshaft Drive Belt __________________ 64
GHS Blower Drive Belt ________________ 65
Hydrostatic Ground Drive Belt ___________ 66
Fuel Filter ___________________________ 67
Blade Overload Shear Bolts_____________ 67
PTO Shear Pin ________________________ 68
Mower Blades ________________________ 68
ADJUSTMENTS ________________________ 69
Steering Levers_______________________ 69
Tilt-Up Deck Adjustable Stop ____________ 69
GHS Signal Horn Adjustment
(When Horn Sounds at Wrong Time) ______ 69
Warranty _____________________ 71
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