MAINTENANCE LUBRICANTS, COOLANT AND FILTERS Grease 0. Grease is used to prevent twisting and noise at the joints. The nipples not included in the MAINTENANCE section are nipples used when overhauling, so they do not need grease. If any part becomes stiff or generates noise after being used for a long time, grease it. Always wipe off all of the old grease that is pushed out when greasing. Be particularly careful to wipe off the old grease in places where sand or dirt sticking in the grease would cause wear of the rotating parts. Carrying out KOWA (Komatsu Oil Wear Analysis) 0.
KOWA (Komatsu Oil Wear Analysis) is a maintenance service that makes it possible to prevent machine failures and down-time. With KOWA, the oil is periodically sampled and analyzed. This enables early detection of wear of the machine drive parts and other abnormalities. Periodic use of KOWA makes the following possible: It enables the accurate understanding of the machine condition by utilizing our long experience and accumu- lated data base. The report on the result of analysis and recommendation will be delivered to the customer soon at low cost (only the actual expenses will be charged). Use of this service is strongly recommended. KOWA analysis items 0. Analysis of metal wear particles.
This uses the latest ICP (Inductively Coupled Plasma) ana- lyzer to measure the density of metal wear particles in the oil. This uses a PQI (Particle Quantifier Index) measurer to measure the quantity of large iron particles (larger than 5 microns) in the oil, which enables the early detection of defect. Others Measurements are made of items such as the ratio of water in oil or fuel in the oil, and the dynamic viscosity. Oil sampling 0. 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. 4-5