MAINTENANCE 18. Check the hydraulic oil level and add oil to the specified level. For details, see “24.5 EVERY 100 HOURS SERVICE” on page 3-46. 19. Next, increase the engine speed and repeat the procedure in Step 17 to bleed air. Continue this procedure until no more air comes out from plug (10). 20. Tighten plug and torque to: 11.3 ± 1.5 N m (8.3 ± 1.1 lbft) 21. Check that the hydraulic oil is at the standard level. For details, see “24.5 EVERY 100 HOURS SERVICE” on page 3-46. 22. Check to be sure that there are no leaks of oil from the filter cover mount. 24.9.3 REPLACE HYDRAULIC TANK BREATHER ELEMENT WARNING The oil is hot if the machine has just been operated.
Wait for the oil to cool down before changing it. When removing the oil filler cap turn it slowly to release the internal pressure, then remove it carefully. 1. Remove cap of oil filler (F). 2. Remove the snap ring on breather (1), then remove the breather cap. 3. Replace the filter element with a new part, the install cap and snap ring. 4. Tighten the cap of oil filler (F). 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 taper thread of the breather with seal tape when reassembling, and be careful not to over-tighten it. 3-71 WA320-3MC