Table of Contents

Maintenance Instructions__________ 41

MAINTENANCE SCHEDULE CHART _______ 41

IMPORTANT TIPS FOR CARE

OF THE KOHLER ENGINE _______________ 42 Fuel System _________________________ 42 Starting/Stopping _____________________ 42 Cooling System ______________________ 42 Air Cleaner System ___________________ 42 Oil _________________________________ 42

LUBRICATION _________________________ 43 Engine Oil ___________________________ 43 Engine Break-In Oil __________________ 43 Checking Engine Crankcase Oil Level ___ 43 Changing Engine Crankcase Oil/Oil Filter _ 43 Mower Deck Gearbox Lubrication _______ 44 DSD52 Mower Deck Lubrication _________ 45 Tractor PTO Gearbox Lubrication _______ 46 Checking Gearbox Oil Level ___________ 46 Changing Gearbox Oil ________________ 46 Gear Axle Lubrication _________________ 46 Hydrostatic Transmission Fluid _________ 46

Checking Hydrostatic

Transmission Fluid Level ______________ 46 Grease Fitting and Oil Point Lubrication __ 47 CLEANING ____________________________ 50 Engine Air Cleaner System _____________ 50 Turbine Precleaner __________________ 50 Donaldson Radialseal™ Air Cleaner _____ 51 Engine Cooling System ________________ 52 Air Intake System ___________________ 52 Cylinder Head Cooling Fins ____________ 53 Grass Buildup in Mower Housing________ 53 GHS Blower _________________________ 54 GHS Exhaust Screen __________________ 55 Hydrostatic Transmission Cooling Fins __ 55 CHECKING/SERVICING _________________ 55 Security of Air Filtration Components ____ 55 Battery______________________________ 55 Electrolyte Level ____________________ 55 Cleaning the Terminals _______________ 56 Charging the Battery _________________ 56 Tire Pressure ________________________ 56 Sharpen Mower Blades ________________ 56 Drive Belts __________________________ 57 Mower Deck Gearbox Oil Seals _________ 58 Spark Plugs _________________________ 58 Fuel Lines and Clamps ________________ 58 Blade Brake Action ___________________ 58

REPLACING/REPAIRING ________________ 58 Drive Belts __________________________ 58 Engine PTO Drive Belt _______________ 60 Jackshaft Drive Belt _________________ 61 GHS Blower Drive Belt _______________ 62 Hydrostatic Ground Drive Belt _________ 63 Fuel Filter ___________________________ 64 Blade Overload Shear Bolts ____________ 64 PTO Shear Pin _______________________ 65 Mower Blades _______________________ 65 ADJUSTMENTS________________________ 66 Steering Levers ______________________ 66 Tilt-Up Deck Adjustable Stop ___________ 66

Warranty___________________________ 67