Service Interval Chart—Every 500 Hours / Every 600 Hours / Every 1200 Hours / Annually / 2000 Hours or Two Years

Item		Every 500 Hours	Every 600 Hours	Every 1200 Hours	Annually	2000 Hours / Two Years
Replace fuel filters		•
Clean operator enclosure/cab air filters1		•
Check and replace water separator bowl			•
Clean engine crankcase vent tube (OCV)			•
Re-pack front wheel bearing (2WD)			•
Change MFWD axle and wheel hub oil			•
Check cooling system for leaks			•
Lubricate rear axle bearings			•
Check engine idle speeds			•
Check front axle pivot pin			•
Adjust engine valve clearance and Inspect fuel injector 2			•
Change transmission-hydraulic oil and filter				•
Clean transmission-hydraulic pickup screen				•
Replace air cleaner elements					•
Inspect seat belt					•
Replace operator enclosure/cab air filters					•
Drain, flush and refill engine cooling system 2						•
Adjust engine valve clearance 2						•