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, filters, and 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, in order to determine the maintenance intervals. Products that operate in severe operating conditions may require more frequent maintenance.

Note: Before each consecutive interval is performed, all maintenance from the previous interval must be performed.

Contact Phu Thai Cat at Hotline 1800 599 990 for 24/7 product support services!

When Required

Battery - Recycle
Battery - Replace
Battery or Battery Cable - Disconnect
Engine - Clean
Engine Oil Level Gauge - Calibrate
Engine Storage Procedure - Check
Fuel System - Prime
Heat Exchanger - Inspect
Maintenance Recommendations
Sea Water Strainer - Clean/Inspect
Zinc Rods - Inspect/Replace

Daily

Closed Crankcase Ventilation (CCV) Filter Service Indicator - Inspect
Cooling System Coolant Level - Check
Engine Air Cleaner Service Indicator - Inspect
Engine Oil Level - Check
Fuel System Primary Filter/Water Separator - Drain
Walk-Around Inspection

Initial 20 to 40 Service Hours

Belts - Inspect/Adjust/Replace

Every 50 Service Hours or Weekly

Aftercooler Condensate Drain Valve - Inspect/Clean
Sea Water Strainer - Clean/Inspect
Zinc Rods - Inspect/Replace

Initial 500 Hours (for New Systems, Refilled Systems, and Converted Systems)

Cooling System Coolant Sample (Level 2) - Obtain

Every 500 Service Hours

Cooling System Coolant Sample (Level 1) - Obtain

Every Year

Cooling System Coolant Sample (Level 2) - Obtain

Every 6000 Service Hours or 3 Years

Cooling System Coolant Extender (ELC) - Add

Every 6 Years

Aftercooler Core - Replace

Every 12 000 Service Hours or 6 Years

Cooling System Coolant (ELC) - Change

First 14 400 L (3750 US gal) of Fuel or 250 Service Hours

Engine Valve Lash - Inspect/Adjust
Fuel Injector - Inspect/Adjust

Every 14 400 L (3750 US gal) of Fuel or 250 Service Hours or 1 Year

Auxiliary Water Pump (Rubber Impeller) - Inspect
Battery Electrolyte Level - Check
Belts - Inspect/Adjust/Replace
Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Engine - Clean
Engine Air Cleaner Element - Clean/Replace
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

Every 28 500 L (7500 US gal) of Fuel or 500 Service Hours or 1 Year (Deep Sump)

Engine Oil and Filter - Change

Every 57 000 L (15 000 US gal) of Fuel or 1000 Service Hours

Closed Crankcase Ventilation (CCV) Fumes Disposal Filter - Replace
Turbocharger - Inspect

Every 57 000 L (15 000 US gal) of Fuel or 1000 Service Hours or 2 Years

Aftercooler Core - Clean/Test

Every 170 400 L (45 000 US gal) of Fuel or 3000 Service Hours

Auxiliary Water Pump (Bronze Impeller) - Inspect
Cooling System Coolant (DEAC) - Change
Cooling System Water Temperature Regulator - Replace
Crankshaft Vibration Damper - Inspect
Engine Mounts - Inspect
Engine Speed/Timing Sensor - Clean/Inspect
Engine Valve Lash - Inspect/Adjust
Engine Valve Rotators - Inspect
Fuel Injector - Inspect/Adjust
Heat Exchanger - Inspect
Starting Motor - Inspect

Every 284 000 L (75 000 US gal) of Fuel or 5000 Service Hours

Alternator - Inspect
Maintenance Recommendations
Oil Cooler Core - Check/Clean/Test
Overhaul (Top End)
Water Pump - Inspect

Every 570 000 L (150 000 US gal) of Fuel or 10 000 Service Hours

Maintenance Recommendations
Overhaul (Major)

PM Kit

PM Kit	Parts Number	Description	Q.ty
Every 250 Service Hours	1R-0749	Fuel Filter	2	Order Now
Every 500 Service Hours	3E-9848	CAT DEO15W40-20L	4	Order Now
Every 500 Service Hours	1R-1808	Oil Filter	2	Order Now
Every 1000 Service Hours	6L-2280	Zinc Rod	3	Order Now
Every 1000 Service Hours	274-7913	Breather Filter	1	Order Now
Every 3000 Service Hours	248-5513	Water Regulator TEMP	1	Order Now
	3S-9643	Seal Regulator	1
	177-7375	Air filter	1
Every 6000 Service Hours	119-5152	ELC extender	1	Order Now

Contact Phu Thai Cat at Hotline 1800 599 990 for 24/7 product support services!

Cat C18 Marine Engine (CYN) - Maintenance Interval Schedule

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Cat C18 Marine Engine (CYN) - Maintenance Interval Schedule

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