MAINTENANCE PROCEDURE MAINTENANCE EVERY 500 HOURS MAINTENANCE 0. Maintenance for every 100 and 250 hours should be carried out at the same time. Engine Crankcase Oil Filter Cartridge - Replace 0. The parts and oil are at high temperature immediately after the engine is stopped, and may cause serious burns. Wait for the temperature to go down before starting the operation. Change oil in engine oil pan should be carried out at the same time. Filter wrench 1. Set the fuel control lever at low idling to stop the engine.
REMARK The reason for setting the fuel control dial at low idling is to provide room for the filter wrench to grip due to the slackening of the fuel cable above the engine oil filter. 2. Drain the engine oil. For details, see "Engine Crankcase Oil - Change ( 4-44 )". 3. Using a filter wrench, turn filter cartridge (1) counterclock- wise to remove it. 4. Clean the filter holder, coat the steel surface of the new filter cartridge with clean engine oil (or coat it thinly with grease), then install it. REMARK Confirm that no remnants of old packing still adhere to the filter holder as this may result in oil leakage. 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. 5. 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. 6. After replacing the filter cartridge, add engine oil through oil filler port (F) so that the oil level is between the H and L marks on dipstick (G). 7. Run the engine at idle for a while, then stop the engine and confirm that the oil level is between the H and L lines according to "Engine Crankcase Oil Level - Check/Add ( 3-34 )". 4-50 WARNING