Operation Manual71
Preventive Maintenance
Establishing a Maintenance Program
The hourmeter displays elapsed engine operating hours. Use
the hour meter and the schedules contained in this section to
establish a comprehensive preventive maintenance program.
Fig 90. Hourmeter
Maintenance Schedule
Change engine oil and lters
Check air lter (replace if necessary)
Replace fuel lter and prelter
Check engine hoses and connections for leaks,
damage, and tightness
Check radiator hoses for leaks, damage, and tightness
Check electrical cables, leads, and connections for
damage and tightness
Check for oil and coolant leaks
Check condition and tension of drive belts (use
tension meter to check belt tension)
Lubricate front and rear driveshaft grease ttings
Lubricate front and rear axle grease ttings
Lubricate front and rear axle cylinder pivot point
grease ttings
Change dierential oil
Change wheel-end oil
Check wheel lug nuts torqued to 380-420 ft lbs
Lubricate boom pivot point grease ttings
Lubricate boom roller grease ttings
Replace hydraulic return line lters
Replace transmission lter and top o uid, as
required
Every Day or 8 Hours of Operation
See Pre-Operation Inspection Checklist
After First 50 Hours of Operation
Lubricate boom pivot point grease ttings
Lubricate front and rear axle cylinder pivot point
grease ttings
After Every 50 Hours of Operation
Comply with 50-Hour Maintenance Requirements
Change engine oil and lter
Check air lter (replace if necessary)
Check tension and condition of drive belts (use
tension meter to check belt tension)
Lubricate front and rear drive shaft grease ttings
Lubricate front and rear axle grease ttings
Check dierential oil level
Check wheel-end oil level
Inspect boom rollers and slide blocks for condition
and tightness
Lubricate boom roller grease ttings
After Every 250 Hours of Operation
Preventive Maintenance