G3612 and G3616 Engines 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 maintenance, including all adjustments, the use of proper lubricants, fluids, and filters. The user is also responsible for the replacement of components due to normal wear and aging. Failure to adhere to proper maintenance intervals and procedures may result in diminished performance of the product and/or accelerated wear of components. Use mileage, fuel consumption, service hours, or calendar time, WHICH EVER OCCURS FIRST, to determine the maintenance intervals. Products that operate in severe operating conditions may require more frequent maintenance. Before each consecutive interval is performed, all maintenance from the previous interval must be performed.

When Required

Actuator Control Linkage - Replace
Barring Device - Lubricate
Cooling System Coolant Sample (Level 2) - Obtain
Engine Air Cleaner Element (Single Element) - Clean/Replace
Engine Air Precleaner - Clean
Overhaul Considerations
Valve Stem Projection - Measure/Record

Daily

Air Starting Motor Lubricator Oil Level - Check
Air Tank Moisture and Sediment - Drain
Control Panel - Inspect
Cooling System Coolant Level - Check
Driven Equipment - Inspect/Replace/Lubricate
Electrohydraulic System - Inspect
Engine Air Cleaner Service Indicator - Inspect
Engine Oil Level - Check
Fuel System Fuel Filter Differential Pressure - Check
Walk-Around Inspection

Every 250 Service Hours

Battery Electrolyte Level - Check
Engine Oil Sample - Obtain

Every 1000 Service Hours

Actuator Control Linkage - Lubricate
Cooling System Coolant Analysis (Level I) - Obtain

Every 2000 Service Hours

Aftercooler Condensation - Drain
Engine Valve Lash - Inspect/Adjust
Engine Valve Rotators - Inspect
Ignition System Spark Plugs - Check/Adjust
Valve Stem Projection - Measure/Record

Every 4000 Service Hours

Cooling System Supplemental Coolant Additive (SCA) - Test/Add

Every 5000 Service Hours

Combustion Sensor - Clean/Inspect/Replace
Crankcase Blowby - Measure/Record
Electrohydraulic System - Check/Adjust
Electrohydraulic System Oil - Change
Electrohydraulic System Oil Filter - Change
Engine Oil - Change
Engine Oil Filter - Change
Exhaust Bypass - Recondition
Ignition System Spark Plugs - Replace
Inlet Air System - Inspect

Every 6000 Service Hours

Prechamber Check Valves - Clean

Every 8000 Service Hours

Air Starting Motor Lines Screen - Clean
Air Starting Motor Lubricator Bowl - Clean
Belts - Inspect/Adjust/Replace
Crankshaft Vibration Damper - Inspect
Driven Equipment - Check
Engine Crankcase Breather - Clean
Engine Mounts - Check
Engine Protective Devices - Check
Hoses and Clamps - Inspect/Replace
Inlet Gas Manifold and Piping - Inspect/Replace
Starting Motor - Inspect
Turbocharger - Inspect

Every 10 000 Service Hours

Cooling System Water Temperature Regulator - Replace
Engine Speed/Timing Sensor - Clean/Inspect

Every 12 000 Service Hours

Alternator - Inspect
Electrohydraulic Actuator - Inspect
Engine Oil Temperature Regulator - Replace
Exhaust Shields - Inspect
Gas Pressure Regulator - Inspect/Replace
Prechamber Check Valves - Replace
Prelube Pump - Inspect
Water Pump - Inspect

Every 20 000 Service Hours or 3 Years

Cooling System Coolant (NGEC) - Change

Every 25 000 Service Hours

Gas Admission Valve Seals - Inspect/Replace
Overhaul (Top End)

Every 50 000 Service Hours

Electrohydraulic Actuator - Recondition
Gas Admission Valve - Recondition
Overhaul (In-Frame)

Every 100 000 Service Hours

Overhaul (Major)

Overhaul

Connecting Rod Bearings - Inspect/Replace