LUBRICANTS, COOLANT AND FILTERS 4.2.1.5 CARRYING OUT KOWA (KOMATSU OIL WEAR ANALYSIS) The oil clinic samples the oil periodically and analyzes it. This is a preventive maintenance service, which pro- vides early discovery of abnormal parts and wear of the drive parts of the machine. This then makes it possible to ensure prevention of failures and reduction in downtime. Komatsu's long years of experience and rich supply of accumulated data make it possible to accurately determine the condition of your machine. This enables us to locate the problems and to recommend suitable and timely re- pair methods.
The oil clinic charges the customer only the actual costs, and provides an immediate report of the results of the analysis and recommendations for action to take. This low-cost service can save you high costs and inconven- ience in the future, so we strongly recommend you to avail yourself of this service. 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) machine 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 Collection interval Every 500 hours: Engine and components other than engine 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 Dealer. 161