MAINTENANCE MAINTENANCE PROCEDURE EVERY 2000 HOURS MAINTENANCE 0. Maintenance for every 100, 250, 500 and 1000 hours should be carried out at the same time. Hydraulic Oil and Strainer - Change/Clean 0. The parts and oil are at high temperature after the engine is stopped, and may cause burns.Wait for the temperature to go down before starting the work. When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it. Prepare a handle (for the socket wrench). 1. Swing the upper structure so that the drain plug under the hydraulic tank will be between both tracks. 2.
Retract the arm and bucket cylinders, then lower the boom and put the teeth in contact with the ground. 3. Lower the blade to the ground. 4. Set the safety lock lever to the LOCK position and stop the engine. 5. Open mud cover, then remove the cap of oil filler (F) to release the internal pressure. 6. Set a container under the drain plug (P) on the underside of the machine body. Remove the drain plug (P) to the drain oil. Check the O-rings fitted to plug (P). If they have any flaw, replace them. After draining the oil, tighten drain plug (P). Take care not to get oil on yourself when you remove drain plug (P). 4-57 WARNING