Komatsu PC18MR-3, Operation & Maintenance Manual

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MAINTENANCE NOTES
196
WEAM012101
4.2.1.5 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. Thus, failures are
avoided and dead time is 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.
Only actual costs are charged to the customer, who receives a report with the analysis results and indications
about the interventions 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 intervention
Every 500 hours: engine and other components
q
Precautions to be taken when sampling the oil
q
Make sure that the oil is well mixed before sampling.
q
Carry out sampling regularly, at fixed intervals.
q
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.