
Maintenance Inspection Schedule
91
• Check condition of engine mounts.
• Maintain year round antifreeze protection at –30 F (–34 C).
• Test fuel injection nozzles at least every 3,000 hours.*
— Replace fuel return lines between fuel injection nozzles every 10,000
hours or sooner, as required.
— Change ELC (red) engine coolant every 5 years or 12,000 hours.
Units equipped with ELC have an ELC nameplate on the expansion
tank.
* Based on EPA 40 CFR Part 89.
Pretrip 1,200
Hours
2,000
Hours
Annual/
3,000
Hours
Inspect/Service These Items
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