Walker D21d Operator's Manual page 4

Table of Contents
Maintenance Instructions
MAINTENANCE SCHEDULE CHART _______ 56
IMPORTANT TIPS FOR CARE
OF THE KUBOTA ENGINE ________________ 57
Fuel System _________________________ 57
Starting/Stopping _____________________ 57
Cooling System ______________________ 57
Air Cleaner System ____________________ 57
Oil__________________________________ 57
LUBRICATION _________________________ 58
Engine Oil ___________________________ 58
Engine Break-In Oil ___________________ 58
Checking Engine Crankcase Oil Level ____ 58
Changing Engine Crankcase Oil/Oil Filter __ 58
Grease Fitting and Oil Point Lubrication __ 59
Mower Deck Gearbox Lubrication ________ 62
DS52 or DS62 Mower Deck Lubrication ___ 62
Mower Deck Spindle Lubrication ________ 63
Tractor PTO Gearbox Lubrication ________ 63
Checking Gearbox Oil Level ____________ 63
Changing Gearbox Oil ________________ 63
Gear Axle Lubrication _________________ 63
Hydrostatic Transmission Fluid _________ 64
Checking Hydrostatic
Transmission Fluid Level ______________ 64
CLEANING ____________________________ 65
Engine Air Cleaner System _____________ 65
Turbine Precleaner ___________________ 65
Donaldson Radialseal™ Air Cleaner ______ 66
Engine Cooling System ________________ 67
Radiator Screen and Cooling Fins _______ 67
Flushing Radiator and Changing Coolant __ 68
Grass Buildup in Mower Deck Housing ___ 68
GHS Blower __________________________ 69
GHS Exhaust Screen __________________ 69
Hydrostatic Transmission Cooling Fins ___ 70
CHECKING/SERVICING __________________ 70
Engine Cooling System ________________ 70
Coolant Level _______________________ 70
Alternator Belt Tension ________________ 71
Security of Air Filtration Components ____ 71
Battery ______________________________ 71
Electrolyte Level _____________________ 71
Cleaning the Terminals ________________ 71
Charging the Battery __________________ 72
Tire Pressure _________________________ 72
Wheel Bolt Torque ____________________ 72
Sharpen Mower Blades ________________ 72
Drive Belts ___________________________ 73
Mower Deck Gearbox Oil Seals __________ 74
Fuel Lines and Clamps _________________ 74
Radiator Hoses and Clamps ____________ 74
Engine Valve Clearance ________________ 74
__________ 56
Fuel Injection Nozzle Pressure __________ 74
Transmission Control Setting ___________ 74
Neutral-Park ________________________ 74
Straight Ground Tracking ______________ 74
Blade Brake Action ____________________ 75
PTO U-Joints _________________________ 75
Safety Switch System__________________ 75
Forward Speed Control Friction Lock _____ 75
REPLACING/REPAIRING _________________ 76
Drive Belts ___________________________ 76
Engine PTO Drive Belt ________________ 77
Jackshaft Drive Belt __________________ 78
GHS Blower Drive Belt ________________ 79
Hydrostatic Ground Drive Belt ___________ 80
Engine Alternator Belt ________________ 81
Fuel Filter ___________________________ 82
Blade Overload Shear Bolts_____________ 82
Mower Blades ________________________ 83
ADJUSTMENTS ________________________ 84
Transmission Control__________________ 84
Steering Lever Position Adjustment ______ 84
Set FSC Travel Limits (Stop) ____________ 84
Set Maximum Forward
Travel Speed (Stop) __________________ 85
Neutral Function Adjustment ____________ 85
Straight Ground Travel Adjustment _______ 86
Blade Clutch (PTO) ____________________ 87
Clutch Engagement/Belt Tension ________ 87
Clutch Disengagement/Brake Action _____ 87
Forward Speed Control Friction Lock _____ 88
Steering Handles _____________________ 89
Tilt-Up Deck Adjustable Stop ____________ 89
GHS "Full" Signal Horn Adjustment ______ 90
Warranty _____________________
91