John Deere Tractor 644G

Replace primary fuel filter with water separator

Lubricate front and rear axle shaft seals

Check air intake hoses and charge air cooler tube couplings

Check driveline damper for cracks

Drain and refill cooling system (6000 Hourly Maintenance)

Replace diesel exhaust fluid (DEF) in-line filter (6000 Hourly Maintenance)

Sign off on the 5000 Hourly Check

Drain and refill transmission oil

Replace transmission oil filter

Check and adjust engine valve lash

Rerun transmission clutch calibration

Drain and refill front axle oil

Replace fuel tank breather filter

Replace open crankcase ventilation (OCV) filter

Sign off on the 2000 Hourly Maintenance

Clean air cleaner dust unloader valve

Check coolant level at surge tank

Check hydraulic system oil level

Replace axle oil filter (if equipped) (Initial 100 Hourly Replacement)

Lubricate loader linkage and cylinder pivots (100 Hourly lubrication)

Take engine oil sample (250 Hourly Maintenance)

Sign off on the 10 Hourly / Daily Maintenance

Replace air cleaner dust unloader valve

Replace engine air cleaner elements

Replace axle oil filter (if equipped)

Drain and refill park brake oil