Table of Contents

Maintenance Instructions __________ 46

MAINTENANCE SCHEDULE CHART _______ 46

IMPORTANT TIPS FOR CARE

OF THE KUBOTA ENGINE _______________ 47 Fuel System _________________________ 47 Starting/Stopping _____________________ 47 Cooling System ______________________ 47 Air Cleaner System ___________________ 47 Oil _________________________________ 47

LUBRICATION _________________________ 48 Engine Oil ___________________________ 48 Engine Break-In Oil __________________ 48 Checking Engine Crankcase Oil Level ___ 48 Changing Engine Crankcase Oil/Oil Filter _ 48 Grease Fitting and Oil Point Lubrication __ 49 Mower Deck Gearbox Lubrication _______ 52 DSD52 or DSD62 Mower Deck Lubrication 52 Tractor PTO Gearbox Lubrication _______ 53 Checking Gearbox Oil Level ___________ 53 Changing Gearbox Oil ________________ 53 Gear Axle Lubrication _________________ 53 Hydrostatic Transmission Fluid _________ 54

Checking Hydrostatic

Transmission Fluid Level ______________ 54 Changing Hydrostatic Transmission Fluid _ 54 CLEANING ____________________________ 55 Engine Air Cleaner System _____________ 55 Turbine Precleaner __________________ 56 Donaldson Radialseal™ Air Cleaner _____ 56 Engine Cooling System ________________ 58 Radiator Screen and Cooling Fins ______ 58 Flushing Radiator and Changing Coolant _ 58 Grass Buildup in Mower Housing________ 58 GHS Blower _________________________ 59 GHS Exhaust Screen __________________ 60 Hydrostatic Transmission Cooling Fins __ 60 CHECKING/SERVICING _________________ 60 Engine Cooling System ________________ 60 Coolant Level ______________________ 60 Fan Belt Tension ____________________ 61 Security of Air Filtration Components ____ 61 Battery______________________________ 61 Electrolyte Level ____________________ 61 Cleaning the Terminals _______________ 61 Charging the Battery _________________ 62 Tire Pressure ________________________ 62 Sharpen Mower Blades ________________ 62 Drive Belts __________________________ 63 Mower Deck Gearbox Oil Seals _________ 63 Fuel Lines and Clamps ________________ 64 Radiator Hoses and Clamps ____________ 64 Engine Valve Clearance________________ 64

Fuel Injection Nozzle Pressure__________ 64 Fuel Valve Solenoid___________________ 64 Blade Brake Action ___________________ 65 REPLACING/REPAIRING ________________ 65 Drive Belts __________________________ 65 Engine PTO Drive Belt _______________ 67 Jackshaft Drive Belt _________________ 68 GHS Blower Drive Belt _______________ 69 Hydrostatic Ground Drive Belt _________ 70 Engine Fan Belt ____________________ 71 Fuel Filter ___________________________ 72 Blade Overload Shear Bolts ____________ 72 PTO Shear Pin _______________________ 73 Mower Blades _______________________ 73 Mower Deck Gearbox Replacement______ 74 GHS Blower Assembly ________________ 75 GHS Blower Assembly Removal _______ 75 Blower Wheel Removal ______________ 75 Blower Wheel Installation _____________ 76 GHS Blower Assembly Installation ______ 76 Replacing Fuel Valve Solenoid _________ 76 ADJUSTMENTS ________________________ 77 Safety Switches ______________________ 77 Tail Wheel Bearing Preload ____________ 77 Steering Levers ______________________ 77 Blade Clutch (PTO) ___________________ 78 Clutch Disengagement/Brake Action ____ 78 Clutch Engagement/Belt Tension _______ 78 Transmission Control _________________ 79 Set Forward Travel Limit (Stop) ________ 79 Steering Lever End Play Adjustment ____ 80 Neutral Function Adjustment __________ 80 Straight Ground Travel Adjustment _____ 80 Forward Speed Control Friction Lock ____ 81 Tilt-Up Deck Adjustable Stop ___________ 81 Fuel Valve Solenoid Linkage ___________ 81

GHS “Full” Signal Horn

with Grass-Pak®Switch _______________ 82 Troubleshooting

(When Horn Fails to Operate) __________ 82 ELECTRICAL SYSTEM __________________ 83 Circuit Breakers ______________________ 83 Wiring Diagram - Model MDD ___________ 84

Maintenance And Service

Record Sheet _______________________ 85

Operator’s Notes___________________ 86

Warranty___________________________ 87