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4 Engine Maintenance
4.1 Maintenance Schedule
The following table gives maintenance period and tasks. Make regular maintenance based on this table. If the engine
frequently operates at the ambient temperature below -18°C or above 38°C, or in dusty environment or under a
stop-and-go condition, the maintenance period should be shortened properly.
Maintenance tasks
Daily
Every
10,000 km
or 250 h
or 3 months
Every
20,000 km
or 500 h
or 6 months
Every
40,000 km
or 1,000 h
or 12 months
Every
80,000 km
or 2,000 h or
2 years
Checking engine periphery Ɣ Ɣ Ɣ Ɣ Ɣ
Checking fuel tank Ɣ Ɣ Ɣ Ɣ Ɣ
Checking air filter service indicator Ɣ Ɣ Ɣ Ɣ Ɣ
Checking primary fuel filter service indicator Ɣ Ɣ Ɣ Ɣ Ɣ
Checking oil level Ɣ Ɣ Ɣ Ɣ Ɣ
Checking coolant level Ɣ Ɣ Ɣ Ɣ Ɣ
Checking electrolyte level Ɣ Ɣ Ɣ Ɣ Ɣ
Checking drive belt
*
Ɣ Ɣ Ɣ Ɣ Ɣ
Checking cooling fan Ɣ Ɣ Ɣ Ɣ Ɣ
Checking intake system Ɣ Ɣ Ɣ Ɣ
Changing lubricating oil, oil filter and oil
centrifugal filtration
**
Ɣ Ɣ Ɣ
Changing fuel filter (including primary filter)
** *
Ɣ Ɣ Ɣ
Priming fuel system Ɣ Ɣ Ɣ
Checking intercooler and its lines Ɣ Ɣ Ɣ
Check/adjusting valve clearance Ɣ Ɣ
Checking belt tensioner
****
Ɣ Ɣ
Checking fan bearing Ɣ
Checking turbocharger Ɣ
Checking vibration damper Ɣ
Checking air compressor Ɣ
Changing coolant and cleaning cooling system
Ɣ
* The belt must be replaced when it has crack or defect(s) that affects its use.
** The replacement period of oil, oil filter and oil centrifugal filtration is 30,000 km, 9months or 750 hours (whichever
comes first) if the engine is equipped with the oil centrifugal filtration.
*** The replacement period of the primary fuel filter should be shorten properly when it contains a certain amount of
foreign particulates and causes difficulty to pump fuel.
**** The belt tensioner must be replaced when its pulley doesn’t spin freely.
Note 1) If a primary air filter is equipped, clean it every 50 hours’ operation. Refer to Section 4.3.27 for cleaning
requirement and procedure.
2˅For marine application engine, clean air filter element when changing oil and oil filter. Refer to Section 4.3.26 for
cleaning requirement and procedure.
Note: The maintenance interval in this table is in kilometers, hours or months, whichever comes first.
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