John Deere Tractor 3320

Check air restriction indicator light

Change transmission oil and filter

Check cab protection system mounting hardware torque

Clean or replace cab air filters

Check air filter element, intake, hoses, and clamps

Check front axle thrust bolt torque

Check and clean inline hydraulic filter

Check engine valve clearance. See your John Deere dealer

Check air filter rubber dust unloading valve

Change engine oil and filter if less than 200 hours of operation

Drain water from fuel tank and replace fuel filter

Check battery electrolyte level

Flush and replace factory coolant. Flush cooling system and replace coolant with John Deere COOL-GARD II engine coolant

Sign off on the yearly maintenance