John Deere Wheel Loader 644K

Check front and rear axle oil level

Check battery electrolyte level and terminals

Check air intake hoses and charge air cooler tube couplings

Lubricate driveline upper and lower sliding joints and lower U-joints

Check ride control accumulator (if equipped)

Replace auxiliary fuel filter (if equipped)

Drain and refill engine oil and replace filter

Replace primary fuel filter element

Drain and refill front and rear axle oil

Drain and refill transmission oil and replace filter

Clean front and rear axle oil recirculation screens (if equipped)

Check and adjust engine valve lash

Rerun transmission clutch calibration (cab monitor)

Sign off on the 2000 hourly maintenance

Clean hydraulic pump case drain in-line screen

Replace hydraulic system return filter

Drain, flush, and refill hydraulic system oil

Clean hydraulic system fill strainer

Sign off on the 4000 Hourly Maintenance

Clean air cleaner dust unloader valve

Check coolant level at surge tank

Check hydraulic system oil level

Replace air cleaner dust unloader valve

Replace engine air cleaner elements

Clean engine crankcase vent tube

Drain and refill park brake oil