Komatsu — EVERY 500 HOURS SERVICE

. MAINTENANCE SERVICE PROCEDURE REPLACE FUEL FILTER CARTRIDGE WARNING Prepare a filter wrench it so its surface comes into too far, the packing will be to leakage of fuel. If the filter also leak from the packing, so (3) and check that air bubbles 4 - 52 The engine is at high temperature immediately after the machine has been operated. Wait fo r the engine to cool down before replacing the filter. Do not bring fire or sparks near th 1. Set the container to catch the 2. Using a filter wrench, turn filte on remove it. 3. Clean the filter head, fill the n coat the packing surface thinl the filter holder. Always use clean fuel when fi to let any dirt or dust get in.

Add fuel from small hole (A) (d add fuel from hole (B) (clean 4. When installing the seal, tigh contact with the filter holder, t If the filter cartridge is tighte damaged and this will lead cartridge is too loose, fuel wi always tighten to the correct 5. After replacing filter cartridge 6. Bleed air with priming pump come out of air bleeding plug 7. Tighten air bleed plug (2). Nm (0.8 to 1 kgm , 5.8 to 7.2 lbft) Tightening torque: 7.8 to 9.8 8. After replacing the filter cartri dge, start the engine and check that there is no leak age of fuel from the filte r seal surface. If there is any leakag e of fuel, check the tightening of the filter cartridge.

If there is still leakage o f fuel, follow Step 1 and 2 to remove the filter cartridge, then check the packing surface f or damage or foreign material. If any damage or foreign mate rial is found in the packing, replace the cartridge with a new part, then repeat Steps 3 - 8 to install the filter cartrid ge.