MAINTENANCE 18.1.5 STORING OIL AND FUEL Keep fuel and oil indoors to prevent any water, dirt, or other impurities from getting into storage containers. When keeping drums for a long period, put the drum on its side so that the filler port of the drum is at the side (to prevent moisture from being sucked in). Periodically inspect drums for leakage. If drums must be stored outside, cover them with a waterproof sheet or take other measures to protect them. To prevent any change in quality during long-term storage, be sure to use in the order of first in - first out (use the oldest oil or fuel first). 18.1.6 FILTERS Filters are extremely important safety parts.
They prevent impurities in the fluid and air circuits from entering important equipment and causing problems. Replace all filters periodically. For details, see “23.1 SCHEDULED MAINTENANCE CHART” on page 3-25. However, when working in severe conditions, it is necessary to consider replacing the filters at shorter interval s according to the oil and fuel (sulfur content) being used. Never try to clean and reuse (cartridge type) filters. Always replace with new filters. When replacing oil filters, check for metal particles stuck to the old filter. If any metal particles are found, please contact your distributor. Do not open packs of spare filters until just before they are to be used.
Always use genuine Komatsu filters. 18.1.7 FUEL INJECTION PUMP DO NOT ATTEMPT TO ADJUST THE FUEL INJECTION PUMP Unsatisfactory engine operation may not be due to the fuel injection pump. If unsatisfactory operation persists after servicing the filters, consult your distributor to service the fuel injection pump. Special equipment and knowledge are required for proper injection pump service. These are available at your distributor. 3-7 WA420-3MC