Komatsu D65EX-12 Operation & Maintenance Manual page 175

MAINTENANCE
KOWA ANALYSIS ITEMS
Analysis of metal wear particles
This uses an ICP (Inductively Coupled Plasma) analyzer to
measure the density of metal wear particles in the oil.
Measurement of particle quantity
This uses a PQI (Particle Quantifier Index) measurer to
measure the quantity of large iron particles in the oil.
Others
Measurements are made of items such as the ratio of water or fuel in the oil, and the dynamic viscosity.
OIL SAMPLING
Sampling interval
250 hours: Engine
500 hours: Other components
Precautions when sampling
Make sure that the oil is well mixed before sampling.
Carry out sampling regularly at fixed intervals.
Do not carry out 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 drum can is at
the side. (To prevent moisture from being sucked in)
If drum cans 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).
OUTLINE OF SERVICE
4-7