MAINTENANCE BASICS LUBRICANTS AND OPERATING AGENTS DRAINING HOT LUBRICANTS AND FLUIDS There is danger of scalding, when you drain off hot oils or hot coolant and remove the corresponding filters immediately after you have switched off the engine. For this reason, wait until the engine has cooled down to approx. 60° C, before you start to perform maintenance work. Do not remove oils when the engine is cold. CHECKING THE OIL LEVEL AND CHANGING OIL Check the oil level and change the oil and oil filter in a dust-free place to avoid contamination of service fluids by undesired ma- terial.
After an oil change or oil filter change, check the oil and oil filter for an unusual high number of metal parts or other undesired material. In case you detect an unusual high contamination, in- form your responsible Komatsu dealer. CHANGING FILTERS Filters avoid introduction of undesired material into the individual cycles and the equipment where they may cause malfunctions. Regularly replace all filters. For details refer to "Maintenance Schedule" for the proper interval. Replace the filters more often, if you work under difficult con- ditions, depending on the oil and fuel that you use (e.g. high sulphur content). Do not try to clean filter cartridges for re-use.
Always replace used filter cartridges by new ones. Do not open the packages containing the spare filters unless you will mount them immediately. Always use genuine Komatsu filters. REFUELLING AND TOPPING OFF OIL Always refuel and top off oil in a sufficiently ventilated place. If the machine is equipped with a fuel strainer in the tank filler neck, do not remove the fuel strainer when refuelling. After refu- elling or topping up of oil, close the filler openings again. Spilled fuel or oil involve danger of slipping and fire. For this rea- son, immediately remove any spilled fuel or oil. Do not let oil or fuel seep into soil or water.
Dispose of oil and fu- el according to applicable environmental regulations. 7-5