4.2 Outlines of service Maintenance Handling oil, fuel, coolant, grease and carrying out KOWA (KOMATSU Oil Wear Analysis) 4.2 Outlines of service 4.2.1 Handling oil, fuel, coolant, grease and carrying out KOWA (KOMATSU Oil Wear Analysis) Oil z Oil is used in the engine and hydraulic equipment under extremely severe conditions (high temperature, high pres- sure), and deteriorates with use. Always use oil that matches the grade and temperature for use given in the Operation and Maintenance Manual. Even if the oil is not dirty, always change the oil after the specified interval.
z Oil corresponds to blood in the human body, so always be careful when handling it to prevent any impurities (water, metal particles, dirt, etc.) from getting in. The majority of problems with machines are caused by the entry of such impurities. Take particular care not to let any impurities get in when stor- ing or adding oil. z Never mix oils of different grades or brands. z Always add the specified amount of oil. Having too much oil or too little oil are both causes of prob- lems. z If the oil in the work equipment is not clear, there is probably water or air getting into the circuit. In such cases, please contact your KOMATSU distributor.
z When changing the oil, always replace the related filters at the same time. z We recommend you have an analysis made of the oil period- ically to check the condition of the machine. For those who wish to use this service, please contact your KOMATSU dis- tributor. Fuel z The fuel pump is a precision instrument, and if fuel contain- ing water or dirt is used, it cannot work properly. z Be extremely careful not to let impurities get in when storing or adding fuel. z Always use the fuel specified in the Operation and Mainte- nance Manual. Fuel may congeal depending on the temperature when it is used (particularly in low temperature below -15°C (5°F)).
It is necessary to use the fuel that is suitable for the temperature. WA150-5H – VEAM934100 4-5