19
Maintenance Inspection Schedule
Pretrip
Every
1,500
Hours
Every
3,000
Hours*
Annual/
4,500
Hours
Inspect/Service These Items
Microprocessor
•
Run Pretrip Test (see “Performing a Pretrip Test” on page 51).
Engine
•
Check fuel supply.
•
Check engine oil level.
•
•
•
•
Inspect belts for condition and proper tension.
•
•
•
•
Check engine oil pressure hot, on high speed (should display “OK”).
•
•
•
•
Listen for unusual noises, vibrations, etc.
•
•
•
•
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 and adjust engine speeds (high and low speed).
•
•
•
Check condition of drive coupling bushings per Service Bulletin T&T 171.
•
Check engine mounts for wear.
•
Replace EMI 3000 air cleaner element (see “EMI 3000 Air Cleaner” on
page 119) at 3,000 hours or two years (whichever occurs first).
•
Replace fuel filter/water separator.
•
Change engine oil and oil filter (hot). Requires oil with API Rating CI-4 or
better (ACEA Rating E3 for Europe).
•
Adjust engine valve clearance.
—
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
page 98).
•
Test fuel injection nozzles at least every 3,000 hours. **
—
Replace fuel return lines between fuel injection nozzles every 10,000
hours.
Electrical
•
•
•
Inspect battery terminals and electrolyte level.
•
•
•
Inspect wire harness for damaged wires or connections.
•
Inspect AC generator and alternator wire connections for tightness.
•
Inspect electric motors.
•
Inspect and if required re-torque all electrical connections on the
contactors in the Fan Control Box to 15 in-lb (1.7 N•m).
•
Inspect and if required re-torque all electrical connections on the
contactors in the High Voltage Box in Smart Power units. Torque the
connections on the Compressor Motor Contactor, Phase Contactors, and
Overload Relay to 22 in-lb (2.5 N•m). Torque the connections on all other
contactors to 15 in-lb (1.7 N•m).
*3,000 hours or two years, whichever occurs first.
** Based on EPA 40 CFR Part 89.
