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MAINTENANCE
OUTLINES OF SERVICE
KOWA ANALYSIS ITEMS
Measurement of density of metal wear particles
This uses an ICP (Inductively Coupled Plasma) analyzer to
measure the density of iron, copper, and other metal wear
particles in the oil.
Measurement of quantity of particles
This uses a PQI (Particle Quantifier Index) measurer to
measure the quantity of iron particles of 5µm or more, enabling
early detection of failures.
Others
Measurements are made of items such as the ratio of water in the oil, density of the antifreeze coolant, ratio of
fuel in the oil, and dynamic viscosity, enabling a highly precise diagnosis of the machine's health.
OIL SAMPLING
Sampling interval
250 hours: Engine
500 hours: Other components
Precautions when sampling
Make sure that the oil is well mixed before sampling.
Perform sampling at regular fixed intervals.
Do not perform sampling on rainy or windy days when water or dust can get into the oil.
For further details of KOWA, please contact your Komatsu distributor.
STORING OIL AND FUEL
Keep indoors to prevent any water, dirt, or other impurities from getting in.
When keeping drum cans for a long period, put the drum on its side so that the filler port of the drums is at the side
to prevent moisture from being sucked in.
If drums have to be stored outside, cover them with a waterproof sheet or take other measures to protect them.
To prevent any change in quality during long-term storage, be sure to use in the order of first in - first out (use the
oldest oil or fuel first).
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