16
TK 56433-5-MM-EN
Maintenance Inspection Schedule
Pretrip
Every
1,500
Hours
Every
3,000
Hours*
Annual/
4,500
Hours
Inspect/Service These Items
Microprocessor
•
Run Pretrip Test.
Engine
•
Check fuel supply.
•
•
•
•
Check engine oil level.
•
•
•
•
Inspect belts for condition and proper tension.
•
•
•
•
Inspect all belt tensioners and belt idler pulleys for condition and correct
operation. Lubricate as needed.
•
•
•
•
Check engine oil pressure hot, on high speed (should display “OK”).
•
•
•
•
Listen for unusual noises, vibrations, etc.
•
•
Visually inspect exhaust system for leakage and abnormal smoke or particulate
emissions.
•
•
•
•
Check engine coolant level and antifreeze protection (-30 F [-40 C]).
•
•
•
Drain water from fuel tank and check vent.
•
•
•
Inspect/clean fuel transfer pump inlet strainer.
•
•
•
Check and adjust engine speeds (high and low speed).
•
•
•
Check condition of drive coupling bushings per Service Bulletin TT171.
•
Inspect air filter element - Dependent on operating conditions, assess fitness to
continue to next service.
•
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).
•
Replace EMI 3000 fuel filter/water separator. See Note.
•
Change engine oil and oil filter (hot). Requires oil with API Classification CJ-4 or
CK-4 (ACEA Rating E9).
•
Adjust engine valve clearance.
•
Test fuel injection nozzles at least every 3,000 hours. Based on EPA 40 CFR Part
89.
—
Replace all belts every 6,000 hours or every 48 months (whichever occurs
first).
—
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”).
—
Replace fuel return lines between fuel injection nozzles every 10,000 hours.
Electrical
•
•
•
•
Check operation of defrost damper (closes on defrost initiation and opens on
defrost termination).
•
•
•
Inspect battery terminals.
•
•
•
Inspect wire harness for damaged wires or connections.
•
Inspect alternator wire connections for tightness and corrosion.
