Service Interval Chart—500 Hours / 1000 Hours / Annually / 2000 Hours or Two Years / 5000 Hours or Five Years

Item		500 Hours	1000 Hours	Annually	2000 Hours / Two Years	5000 Hours / Five Years
Change engine oil and filter * 1		•
Replace fuel filters		•
Replace transmission-hydraulic oil filter		•
Lubricate front wheel bearings (2WD axle)		•
Tighten all hose clamps		•
Check cooling system for leaks		•
Lubricate rear axle bearings		•
Check engine idle speed		•
Inspect air intake hose, turbo air cooler pipes and hose clamps		•
Clean cab air filters		•
Change transmission-hydraulic oil and filter			•
Change MFWD axle and wheel hub oil			•
Clean engine crankcase vent tube			•
Change engine oil and filter				•
Replace engine air intake filters				•
Inspect seat belt				•
Drain, flush and refill engine cooling system2					•
Adjust engine valve clearance3					•
Drain, flush and refill engine cooling system4						•
Test or replace thermostat						•
Replace crankshaft vibration damper3						•