John Deere Tractor 4520

Check air filter rubber dust unloading valve

Change engine oil and filter (if not using John Deere PLUS-50™ oil)

Air restriction indicator light working?

Enter wheel bolt torque reading

Sign off on the 200 Hourly Maintenance

Change engine oil and filter (if John Deere PLUS-50™ is used)

Change transmission oil and filter

Clean transmission suction screen

Sign off on the 400 Hourly Maintenance

Cab protection system mounting hardware torque checked?

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

Sign off on the 600 Hourly Maintenance