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

Replace air cleaner dust unloader valve

Replace engine air cleaner elements

Replace axle oil filter (if equipped)

Drain and refill park brake oil

Drain, flush, and refill hydraulic system oil

Replace hydraulic system return filter

Clean hydraulic system fill strainer

Access diesel exhaust fluid (DEF) dosing unit filter-L Engine

Clean hydraulic pump case drain in-line filter

Replace diesel exhaust fluid (DEF) dosing unit filter

Replace diesel exhaust fluid (DEF) tank breather filter

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 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