Komatsu PC16R-3, Operation & Maintenance Manual

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MAINTENANCE NOTES
194
4.2.1.4 KOWA

(KOMATSU OIL WEAR ANALYSIS)
This system requires that oil samples be periodically collected and analysed. This is a preventive maintenance
service, which makes it possible to identify faulty parts or worn machine components timely. It also allows many
failures to be prevented and machine downtime to be reduced.
Many years of experience and the availability of countless data and information allow Komatsu to accurately deter-
mine the conditions of the machine. This also allows us to locate troubles and suggest the most suitable and fast
repair solutions.
The customer immediately receives a report containing the results of the analysis and suggestions for the opera-
tions to be carried out. This low-cost service is very useful and allows customers to save money and avoid many
problems.
KOWA ANALYSIS STAGES
q
Analysis of metal particles

In this stage a ICP (Inductively Coupled Plasma) analyser is
used to measure the density of the metal particles present in the
oil.
q
Measurement of particle quantity

In this stage a PQI (Particle Quantifier Index) machine is used
to measure the quantity of large iron particles present in the oil.
q
Other analyses and measurements

In this stage other aspects, such as the percentage of water or
fuel in the oil and the dynamic viscosity, are analysed.
OIL SAMPLING
q
Collection interval

Every 500 hours: engine and other components
q
Precautions to be taken when sampling the oil
• 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 on KOWA, please contact your Komatsu Distributor.
WEAM012405