Maintenance Inspection Schedule

Pretrip Every 1,500 Hours Every 3,000 Hours* Inspect/Service These Items
  Microprocessor:
•     Run Pretrip Test (see Performing a Pretrip Test).
  Engine:
•     Check fuel supply.
•     Check engine oil level.
• • • Listen for unusual noises, vibrations, etc.
• • • Inspect belts for condition and proper tension.
• • • Check engine oil pressure hot, on high speed (should display OK).
• • • Check engine coolant level and antifreeze protection (-30 F [-40 C]).
  • • Drain water from fuel tank and check vent.
  • • Inspect/clean electric fuel pump filter.
    • Check engine mounts for wear.
    • Replace EMI 3000 air cleaner element (see EMI 3000 Air Cleaner) at 3,000 hours or two years (whichever occurs first). See note.
    • Replace Primary EMI 3000 fuel filter/water separator. See note.
    • Replace Secondary EMI 3000 fuel filter. If equipped, see note.
    • Change engine oil and oil filter (hot). Requires oil with API Classification CJ-4 or CK-4. See Note.

NOTE: For high biodiesel use (B20) the engine oil and filter should be changed every 1500 hours.
    • Inspect/clean EGR system. Replace EGR hose. Cleaning the cooler is required for emissions compliance.
    — Change ELC (red) engine coolant every 5 years or 12,000 hours. Units equipped with ELC have an ELC nameplate on the expansion tank (see Engine Cooling System).
  Electrical:
  • • Inspect battery terminals and electrolyte level.
  • • Inspect wire harness for damaged wires or connections.
  • • Inspect AC generator wire connections for tightness.
  Structural:
• • • Visually inspect unit for fluid leaks.
• • • Visually inspect unit for damaged, loose, or broken parts.
  • • Clean entire unit including radiator coil.
  • • Check all unit and fuel tank mounting bolts, brackets, lines, hoses, etc.

*3000 hours or one year, whichever occurs first.