3126B Marine Engine 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: fuel consumption , service hours and calendar time . 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
Coolant - Change
Coolant Extender (ELC) - Add
Engine Air Cleaner Element (Single Element) - Inspect/Clean/Replace
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 Primary Filter/Water Separator - Drain
Fuel System Water Separator - Check/Drain
Fumes Disposal Filter Service Indicator - Check
Transmission Oil Level - Check
Walk-Around Inspection

Every 1400 L (375 US gal) of Fuel or 50 Service Hours

Zinc Rods - Inspect/Replace

Every 5700 L (1500 US gal) of Fuel or 150 Service Hours for Engines Used in Severe Applications

Engine Oil and Filter - Change

First 5700 L (1500 US gal) of Fuel or 200 Service Hours

Engine Valve Lash - Check

PM Level 1 - Every 5700 L (1500 US gal) of Fuel or 200 Service Hours or 1 Year

Aftercooler Condensate Drain Valve - Inspect/Clean
Auxiliary Water Pump (Rubber Impeller) - Inspect
Battery Electrolyte Level - Check
Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Engine Crankcase Breather - Clean
Engine Oil Sample - Obtain
Engine Oil and Filter - Change
Fuel System Primary Filter (Water Separator) Element - Replace
Fuel System Secondary Filter - Replace
Fuel Tank Water and Sediment - Drain
Hoses and Clamps - Inspect/Replace

PM Level 1 - Every 5700 L (1500 US gal) of Fuel or 2000 Service Hours or 1 Year

Belts - Inspect/Adjust/Replace

Every 17 000 L (4500 US gal) of Fuel or 600 Service Hours

Fumes Disposal Filter Element - Replace
Turbocharger - Inspect

PM Level 2 - Every 28 400 L (7500 US gal) of Fuel or 1000 Service Hours or 2 Years

Aftercooler Core - Clean/Test
Heat Exchanger - Inspect

PM Level 3 - Every 56 800 L (15 000 US gal) of Fuel or 2000 Service Hours

Alternator - Inspect
Coolant Temperature Regulator - Replace
Crankshaft Vibration Damper - Inspect
Engine Mounts - Inspect
Engine Valve Lash - Check
Starting Motor - Inspect
Water Pump - Inspect

Overhaul

Overhaul Considerations