3126E Truck Engines Caterpillar

Note: Ensure that the Safety Information, warnings, and instructions are read and understood before operation or maintenance procedures are performed.

Note: Use distance (odometer), fuel consumption, service hours, or calendar time, WHICHEVER OCCURS FIRST , in order to determine the maintenance intervals. Engines that operate in severe operating conditions may require more frequent maintenance. Failure to adhere to proper maintenance intervals may result in degradation of engine performance and/or accelerated engine component wear.

Before each consecutive interval is performed, all of the maintenance requirements from the previous interval must also be performed.

When Required

Air Dryer - Check
Battery - Replace
Battery or Battery Cable - Disconnect
Engine Air Cleaner Element - Clean/Replace
Engine Storage Procedure - Check
Fuel System - Prime
Severe Service Application - Check

Daily

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

Initial 17 700 km (11 000 miles) or 4150 L (1100 US gal) of Fuel or 250 Service Hours or 6 Months

Engine Valve Lash - Inspect/Adjust

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

Aftercooler Core - Clean/Test
Air Compressor - Inspect
Alternator - Inspect
Belt Tensioner - Inspect
Cooling System Water Temperature Regulator - Replace
Crankshaft Vibration Damper - Inspect
Engine - Clean
Engine Mounts - Inspect
Engine Valve Lash - Inspect/Adjust
Starting Motor - Inspect
Turbocharger - Inspect
Water Pump - Inspect

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

Cooling System Coolant (DEAC) - Change

Every 483 000 km (300 000 miles)

Cooling System Coolant Extender (ELC) - Add

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

Cooling System Coolant (ELC) - Change

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

Overhaul Considerations