Note: Before performing any operation or maintenance procedures, ensure that the Safety Information, warnings, and instructions are read and understood.

To determine the maintenance intervals, use fuel consumption, service hours, or calendar time, whichever occurs first. Experience has shown that maintenance intervals are most accurately scheduled on the basis of fuel consumption.

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

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

When Required

Battery - Replace
Battery or Battery Cable - Disconnect
Engine - Clean
Fuel System - Prime
Generator Set - Test
Rotating Rectifier - Test

Daily

Cooling System Coolant Level - Check
Electrical Connections - Check
Engine Air Cleaner Service Indicator - Inspect
Engine Oil Level - Check
Generator Load - Check
Walk-Around Inspection

Every Week

Generator - Inspect

Every 100 Service Hours or 3 Months

Insulation - Test

Every 500 Service Hours

Cooling System Coolant Sample (Level 1) - Obtain

Every Year

Cooling System Coolant Sample (Level 2) - Obtain

First 470 L (125 US gal) of Fuel or First 20 to 40 Service Hours

Belts - Inspect/Adjust/Replace
Engine Valve Lash - Inspect/Adjust

Every 4450 L (1175 US gal) of Fuel or 250 Service Hours or 1 Year

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

Every 4700 L (1250 US gal) of Fuel or 400 Service Hours or 1 Year

Auxiliary Water Pump (Rubber Impeller) - Inspect
Battery Electrolyte Level - Check
Cooling System Supplemental Coolant Additive (SCA) - Test/Add
Crankshaft Vibration Damper - Inspect
Engine Air Cleaner Element (Dual Element) - Clean/Replace
Engine Mounts - Inspect
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
Fuel Transfer Pump Strainer - Clean
Heat Exchanger - Inspect
Hoses and Clamps - Inspect/Replace

Every 23 500 L (6250 US gal) of Fuel or 2000 Service Hours or 2 Years

Alternator - Inspect
Cooling System Coolant (DEAC) - Change
Cooling System Water Temperature Regulator - Replace
Engine Crankcase Breather - Clean/Replace
Engine Valve Lash - Inspect/Adjust
Fuel Injection Nozzles - Test/Exchange
Generator - Dry
Starting Motor - Inspect
Turbocharger - Inspect/Clean
Water Pump - Inspect

Every 70 500 L (18 750 US gal) of Fuel or 6000 Service Hours

Cooling System Coolant (ELC) - Change

Every 7500 L (2000 US gal) of Fuel or 1000 Service Hours

Rotating Rectifier - Check

Every 117 500 L (31 250 US gal) of Fuel or 10 000 Service Hours

Overhaul Considerations

Every 28 500 L (7500 US gal) of Fuel or 3000 Service Hours

Cooling System Coolant Extender (ELC) - Add

PM Kit TCN1-UP

PM Kit	Parts Number	Description	Q.ty
Every 400 Service Hours	3E-9848	CAT DEO15W40-20L	1	Order Now
	7W-2326	Oil filter	1
	206-6910	Fuel filter	1
Every 2000 Service Hours	4W-8063	Regulator coolant temperature	1	Order Now
Every 3000 Service Hours	212-4478	Air filter element primary	1	Order Now
	212-4477	Air filter element secondary	1
	6L-3408	V-Belt	1
	119-5152	ELC extender	1
Every 6000 Service Hours	365-8396	CAT ELC - Extended Life Coolant	2	Order Now

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

Cat 3504 Marine Engine (TCN) - Maintenance Interval Schedule

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Cat 3504 Marine Engine (TCN) - Maintenance Interval Schedule

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