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OUTLINE OF SERVICE
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When changing the oil, always replace the related filters at
the same time.
We recommend you to have an analysis made of the oil peri-
●
odically to check the condition of the machine. For those who
wish to use this service, please contact your Komatsu distrib-
utor.
FUEL
The fuel pump is a precision instrument, and if fuel containing
●
water or dirt is used, it cannot work properly.
Be extremely careful not to let impurities get in when storing
●
or adding fuel.
Always use the fuel specified in the Operation and Mainte-
●
nance Manual.
Fuel may congeal depending on the temperature when it is
●
used (particularly in low temperature below-15°C), so it is
necessary to change to a fuel that matches the temperature.
To prevent the moisture in the air from condensing and form-
●
ing water inside the fuel tank, always fill the fuel tank after
completing the day's work.
Before starting the engine, or when 10 minutes have passed
●
after adding fuel, drain the sediment and water from the fuel
tank.
If the engine runs out of fuel, or if the filters have been
●
replaced, it is necessary to bleed air from the circuit.
COOLANT
River water contains large amounts of calcium and other
●
impurities, so if it is used, scale will stick to the engine and
radiator, and this will cause defective heat exchange and
overheating. Do not use water that is not suitable for drinking.
When using anti-freeze, always observe the precautions
●
given in the Operation and Maintenance Manual.
Komatsu machines are supplied with Komatsu original anti-
●
freeze in the coolant when the machine is shipped.
This anti-freeze is effective in preventing corrosion of the
cooling system.
The anti-freeze can be used continuously for two years or
4000 hours. Therefore, it can be used as it is even in hot
areas.
Anti-freeze is inflammable, so be extremely careful not to
●
expose it to flame or fire.
●
The proportion of anti-freeze to water differs according to the
ambient temperature.
For details of the mixing proportions, see "CLEAN
INSIDE OF COOLING SYSTEM (255)"
●
If the engine overheats, wait for the engine to cool before
adding coolant.
228
MAINTENANCE
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