4.4 Fuel, coolant and lubricants
Wear parts list Maintenance
4-16 WA470-6H – VEAM946100
4.4 Fuel, coolant and lubricants
! KOMATSU genuine oils are adjusted to maintain the reliabil-
ity and durability of KOMATSU construction equipment and
components.
! In order to keep your machine in the best conditioner for long
periods of time, it is essential to follow the instructions in this
Operation and Maintenance Manual.
! Failure to follow these recommendations may result in short-
ened life or excess wear of the engine, power train, cooling
system, and/or other components.
! Commercially available lubricant additives may be good for
the machine, but they may also cause harm. KOMATSU
does not recommend any commercially available lubricant
additive.
! Use the oil recommended according to the ambient temper-
ature in the chart below.
! Specified capacity means the total amount of oil including
the oil in the tank and the piping. Refill capacity means the
amount of oil needed to refill the system during inspection
and maintenance.
! When starting the engine in temperatures below 0°C, be
sure to use the recommended multi-grade oil, even if the
ambient temperature may become higher during the course
of the day.
! If the machine is operated at a temperature below -20°C, a
separate device is needed, so consult your KOMATSU dis-
tributor.
! When the fuel sulfur content is less than 0.2%, change the
engine oil according to the period inspection table given in
this Operation and Maintenance Manual.
If the fuel sulfur content is more than 0.2%, change the oil
according to the following table.
* If using these fuels, serious troubles may occur because of
early deterioration of engine oil or early wear of engine internal
parts. If using them by necessity for local situations, be sure to
inform customers about the following.
Fuel sulfur content (%) Engine oil change interval
0.2 - 0.5 250 hours
5.0 and up Not recommendable (*)
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