C4.4 Industrial Engine Maintenance Interval Schedule Caterpillar

When Required

Battery - Replace
Battery or Battery Cable - Disconnect
Engine - Clean
Engine Air Cleaner Element (Dual Element/Canister Type) - Clean/Replace
Engine Air Cleaner Element (Single Element) - Inspect/Replace
Fuel System - Prime
Radiator - Clean

Daily

Coolant Level - Check
Driven Equipment - Check
Engine Air Cleaner Service Indicator - Inspect
Engine Air Precleaner - Check/Clean
Engine Oil Level - Check
Fuel System Primary Filter/Water Separator - Drain
Walk-Around Inspection

Every Week

Hoses and Clamps - Inspect/Replace

Every 50 Service Hours or Weekly

Fuel Tank Water and Sediment - Drain

Every 250 Service Hours

Engine Oil Sample - Obtain

Initial 500 Service Hours

Engine Valve Lash - Check

Every 500 Service Hours

Fan Clearance - Check

Every 500 Service Hours or 1 Year

Battery Electrolyte Level - Check
Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Engine Air Cleaner Element (Dual Element/Canister Type) - Clean/Replace
Engine Air Cleaner Element (Single Element) - Inspect/Replace
Engine Crankcase Breather Element - Replace
Engine Oil and Filter - Change
Fuel System Primary Filter (Water Separator) Element - Replace
Fuel System Secondary Filter - Replace

Every 1000 Service Hours

Belt Tensioner - Check
Belt - Inspect
Engine Valve Lash - Check
Water Pump - Inspect

Every 2000 Service Hours

Aftercooler Core - Inspect
Engine Mounts - Inspect
Starting Motor - Inspect
Turbocharger - Inspect

Every 3000 Service Hours

Alternator - Inspect
Alternator and Fan Belts - Replace

Every 3000 Service Hours or 2 Years

Coolant (Commercial Heavy-Duty) - Change

Every 4000 Service Hours

Aftercooler Core - Clean/Test

Every 6000 Service Hours or 3 Years

Coolant Extender (ELC) - Add

Every 12 000 Service Hours or 6 Years

Coolant (ELC) - Change

Overhaul

Overhaul Considerations

Commissioning

Fan Clearance - Check