MAINTENANCE 16. Operate the steering, bucket, and lift arm cylinders to the end of their strokes three to four times. Turn the engine off and loosen the bleed plug (8). 17. Check the hydraulic oil level and add oil to the specified level. For details, See 24.5 EVERY 100 HOURS SERVICE on page 3-38. 18. Increase the engine speed and repeat the procedure in step 16 to bleed the air from the system. Repeat this procedure until air stops coming out from the plug. 19. Torque the bleed plug (8) to 11.3 +/- 1.5 N•m (8.3 +/- 1.1 lbf). 20. Check that the hydraulic oil is at the standard level. For details, See 24.5 EVERY 100 HOURS SERVICE on page 3-38. 21.
Check to be sure that no oil leaks exist from the filter cover. 24.9.2 REPLACE THE HYDRAULIC TANK BREATHER ELEMENT WARNING Before removing the cap, turn it slowly to release the internal pressure. 1. Remove the oil filler cap (F). 2. After removing the snap ring on the breather (1), remove the breather cap. 3. Replace the filter element with a new one. 4. Reinstall the breather cap and snap ring. 5. Reinstall the oil filler cap. REMARKS It is possible to replace the element with the breather installed in the tank. However, if the breather is removed, do not wrap the tapered thread of the breather with seal tape when assembling, and be careful not to over tighten. WA450-3MC 3-57