MAINTENANCE PROCEDURE 4.9.3.b CHANGE OIL IN ENGINE OIL PAN, REPLACE ENGINE OIL FILTER CARTRIDGE Engine parts and oil are at high temperature immediately after the engine is stopped, and will cause se- rious burns. Wait for the temperature to cool down before starting the operation. Oils, filters, coolants and batteries are considered special waste and must be collected and disposed of according to the regulations in force. Refill capacity: 5.2 liters (1.9 US. gall.) Prepare a filter wrench Change the oil and replace the cartridge once every 6 months, even if the engine has not been operated for 500 hours.
In the same way, change the oil and replace the cartridge once every 500 hours, even if the engine has not been operated for 6 months. 1. Set a container to catch the oil immediately under the drain plug (P) at the bottom of the machine. 2. Remove drain plug (P) slowly to avoid getting oil on your- self, and drain the oil. 3. Check the drained oil, and if there are excessive metal particles or foreign material, please contact your Komatsu Dealer. 4. Install drain plug (P). 5. Open the engine rear cover. 6. Using a filter wrench, turn filter cartridge (1) counterclock- wise to remove it. 7.
Clean the filter holder, coat the new filter cartridge packing and threaded portion with clean oil (or coat thinly with grease), then install. NOTE Check that there is no old packing affixed to the filter holder. If there is any old packing affixed to the filter, it will cause leakage of oil. 8. When installing; tighten until the packing surface contacts the seal surface of the filter holder, then tighten it up 1/2 to 3/4 of a turn. 9. After replacing the filter cartridge, add oil through oil filler (F) until the oil level is between the H and L marks on the dipstick (G). 10.
Run the engine idle for a while, then stop the engine and confirm that the oil level is between the H and L lines according to "3.3.1.2 CHECKS BEFORE STARTING" - " CHECK OIL LEVEL IN ENGINE OIL PAN, ADD OIL". 196 WARNING