4.8 Service procedure Maintenance Every 2000 hours service 12. Next, operate the steering, bucket, and lift arm cylinders to the end of their stroke 3 to 4 times, then stop the engine and loosen fillercap to bleed the air from the hydraulic tank. 13. Check the hydraulic oil level and add oil to the specified level. For details, see "Check oil level in hydraulic tank, add oil (4-42)". 14. Next, raise the engine speed and follow the procedure in Step 12 to bleed the air. Repeat this process until no more air comes out. 15. After completing the air bleed operation, install cover (1) and (2).
Replace hydraulic tank breather element z 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. z When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it. 1. Remove cover (1). 1 2. Loosen bolt (2) at the top of the filler cap, then remove cap cover (3). 3. Remove element (4). 4. Coat O-ring (5) of the new element with grease, then install. 5. Align cap cover (3) with the grooves in the body, then tighten with bolt (2). 2 5 6. Install cover (1). 3 4 5 GK032294 WA150-5H – VEAM934100 4-61 WARNING WARNING