. MAINTENANCE SERVICE PROCEDURE REPLACE FUEL MAIN FILTER CARTRIDGE WARNING Container to catch the oil Prepare a filter wrench 1. Set the container to catch the fuel under the filter cartridge. 2. Using a filter wrench, turn filter cartridge (1) counterclockwise on remove it. 3. Clean the filter holder, coat the packing surface of the new filter cartridge thinly with oil, then install the filter cartridge to the filter holder. NOTICE Do not fill the fuel main filter cartridge with fuel. Cap (A) is installed to prevent dirt from entering the inside of the filter cartridge.
A 9 J A 0 7 6 3 9 4 - 54 EVERY 1000 HOURS Maintenance for every 50, 100, 250 and 500 hours service should be carried out at the s After the engine has been o perated, all parts are at high temperature, so do not replace the filter im mediately. Wait for all parts to cool down before startin g the operation. inside the engine fuel piping system when the engine is running. High pressure is generated inside the engine fuel piping system when t When replacing the filter, w replacing the filter. ait for at least 30 seconds after stopping th e engine to let the intern al pressure go down before e close.
Do not bring any fire or flam NOTICE Genuine Komatsu fuel filter cartridges use a special filter that has high ly efficient filtering abilit y. When replacing the filter cartridge, always use a gen uine Komatsu part. The common rail fuel inject ion system used on this machine consists of more precise parts than the conventional injection pump and nozzle. If any part other than a genu system. Always avoid usin ine Komatsu filter cartridge is used, dust or dirt may get in and cause problems with the injection g substitute parts. When carrying out inspectio n or maintenance of the fuel system, pay m ore attention than normal to the entry of dirt.
If dir t is stuck to any part, use fuel t o wash it off completely. After replacing the fuel pre- filter cartridge, replace the main fuel filt