C7 Engines for Combat and Tactical Vehicles Caterpillar

Ensure that all safety information, warnings, and instructions are read and understood before any operation or any maintenance procedures are performed. The user is responsible for the performance of all maintenance including the following procedures: all adjustments , the use of proper lubricants, fluids, filters and the installation of new components due to normal wear and aging . The performance of this product may be diminished if proper maintenance intervals and procedures are not followed. Components may experience accelerated wear if proper maintenance intervals and procedures are not followed.

Note: Use whichever of the following that occurs first in order to determine the maintenance intervals: calendar time , fuel consumption , mileage and service hours . Before each consecutive interval is performed, all maintenance from the previous intervals must be performed.

Products that operate in severe operating conditions may require more frequent maintenance.

When Required

Battery - Replace
Battery or Battery Cable - Disconnect
Engine - Clean
Engine Oil Level Gauge - Calibrate
Engine Storage Procedure - Check
Fuel System - Prime

Daily

Coolant Level - Check
Engine Air Cleaner Service Indicator - Inspect
Engine Oil Level - Check
Fuel System Water Separator - Check/Drain
Walk-Around Inspection

PM Level 1 - Every 17 700 km (11 000 miles) or 4150 L (1100 US gal) of Fuel or 250 Service Hours or 6 Months

Aftercooler Core - Clean/Test
Air Compressor Filter - Clean/Replace
Battery Electrolyte Level - Check
Belts - Inspect/Adjust/Replace
Coolant Sample (Level 1) - Obtain
Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Engine Crankcase Breather - Clean
Engine Oil Sample - Obtain
Engine Oil and Filter - Change
Fan Drive Bearing - Lubricate
Fuel System Primary Filter - Replace
Fuel System Secondary Filter - Replace
Fuel Tank Water and Sediment - Drain
Grounding Stud - Inspect/Clean/Tighten
Hoses and Clamps - Inspect/Replace
Radiator - Clean

PM Level 2 - Every 161 000 km (100 000 miles) or 56 850 L (15 000 US gal) of Fuel or 2000 Service Hours or 2 Years

Air Compressor - Check
Alternator - Inspect
Belt Tensioner - Check
Coolant Temperature Regulator - Replace
Crankshaft Vibration Damper - Inspect
Engine Air Cleaner Element (Single Element) - Inspect/Clean/Replace
Engine Mounts - Inspect
Engine Valve Lash - Check
Starting Motor - Inspect
Turbocharger - Inspect
Water Pump - Inspect

Every Year

Coolant Sample (Level 2) - Obtain

Every 3 Years or 322 000 km (200 000 miles)

Coolant (DEAC) - Change

Every 6 Years or 966 000 km (600 000 miles)

Coolant (ELC) - Change

Every 483 000 km (300 000 miles) or 3 Years

Coolant Extender (ELC) - Add

Every 114 000 L (30 000 US gal) of Fuel

Overhaul Considerations