24. SERVICE PROCEDURE 24.6.3 CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE Perform this maintenance every 500 hours on machines equipped with bypass filter. ¤ WARNING The oil is at high temperature after the engine has been oper- ated, so never change the oil immediately after finishing opera- tions. Wait for the oil to cool down before changing it. Prepare the following Container to catch drained oil: Min 28 ¶ capacity Refill capacity: 28 ¶ (7.40 US gal, 6.16 UK gal) Filter wrench 1. Remove the inspection cover of the undercover directly under drain plug P under the machine, then place a container to catch the oil. 2.
Lower the lever of drain valve P slowly to prevent getting oil on yourself, and drain the oil. After draining the oil, raise the lever to close the valve. AM091490 3. Check the drained oil, and if there are excessive metal particles or foreign material, please contact your Komatsu distributor. 4. Tighten drain valve P . 5. Open the engine hood. Using the filter wrench from the upper side of the engine, turn filter cartridge 1 counterclockwise to remove it. In particular, if this operation is carried out immediately after stopping the engine, a large amount of oil will come out, so wait for 10 minutes before starting the operation. AM091570 Lever Detail P 6.
Clean the filter holder, coat the packing surface of a new filter cartridge with engine oil (or coat it thinly with grease), then install it to the filter holder. REMARK Confirm that no remnants of old packing still adhere to the filter holder as this may result in oil leakage. 7. When installing, tighten until the packing surface contacts the seal surface of the filter holder, then tighten it up further 3/4 to 1 of a turn. 3-52