Table of ContentsMaintenance Instructions __________ 46MAINTENANCE SCHEDULE CHART _______ 46IMPORTANT TIPS FOR CAREOF THE KOHLER ENGINE ________________ 47Fuel System _________________________ 47Starting/Stopping _____________________ 47Cooling System ______________________ 47Air Cleaner System ____________________ 47Oil__________________________________ 47LUBRICATION _________________________ 48Engine Oil ___________________________ 48Engine Break-In Oil ___________________ 48Checking Engine Crankcase Oil Level ____ 48Changing Engine Crankcase Oil/Oil Filter __ 48Mower Deck Spindle Lubrication ________ 50DR52, DS60 or DR64 MowerDeck Lubrication _____________________ 50Check Transaxle Fluid Level ____________ 50Transaxle Oil and Filter Change _________ 50Grease Fitting and Oil Point Lubrication __ 51CLEANING ____________________________ 54Engine Air Cleaner System _____________ 54Donaldson Radialsealâ„¢ Air Cleaner ______ 54Engine Cooling System ________________ 56Radiator Screen and Cooling Fins _______ 56Flushing Radiator and Changing Coolant __ 57Grass Buildup in Mower Deck Housing ___ 57Transaxle Housing ____________________ 58CHECKING/SERVICING__________________ 60Engine Cooling System ________________ 60Coolant Level _______________________ 60Security of Air Cleaner System __________ 60Battery ______________________________ 60Electrolyte Level _____________________ 60Cleaning the Terminals ________________ 61Charging the Battery __________________ 61Tire Pressure_________________________ 61Wheel Nut Torque _____________________ 61Sharpen Mower Blades ________________ 61Drive Belts ___________________________ 62Fuel Lines and Clamps _________________ 62Radiator Hoses and Clamps ____________ 62Transmission Control Setting ___________ 63Neutral-Park ________________________ 63Straight Ground Tracking ______________ 63Blade Brake Action ____________________ 63PTO U-Joints ________________________ 63Safety Switch System__________________ 63Forward Speed Control Friction Lock _____ 64REPLACING/REPAIRING _________________ 65Drive Belts ___________________________ 65Engine/PTO Belt _____________________ 66Ground Drive Belt ____________________ 67Deck Drive Belt ______________________ 68Fuel Filter ___________________________ 69Mower Blades ________________________ 69ADJUSTMENTS ________________________ 71Transmission Control__________________ 71Steering Lever Position Adjustment ______ 71Steering Handles Adjustment ___________ 71Neutral Function Adjustment ____________ 72Full Forward Speed Adjustment _________ 73Straight Tracking Adjustment ___________ 74FSC Neutral Switch Adjustment _________ 74Forward Speed ControlFriction Adjustment __________________ 75Blade Clutch (PTO) ____________________ 76Clutch Engagement/Belt Tension ________ 76Clutch Disengagement/Brake Action _____ 77Idler Pulley Maximum Travel Adjustment __ 77Blade Brake Band Adjustment __________ 78Warranty _____________________ 79