GENERAL / Bleeding Air from Hydraulic Oil Tank BLEED AIR FROM HYDRAULIC OIL TANK CAUTION: Escaping fluid under pressure may penetrate the skin and eyes, and cause serious injury. Release the pressure before removing hydraulic or other lines. Hot hydraulic oil just after operation may spout and cause severe burns. Wait for oil in order to cool before starting any work. Do not turn the cap on hydraulic oil tank quickly. The cap may fly off by internal pressure. Release any remaining pressure and remove the cap. Preparation 1. Park the machine on a solid, level surface. Lower the front attachment onto the ground. 2. Stop the engine.
Push the air bleed valve on the hydraulic oil tank and release any remaining pressure in the hydraulic oil tank. 3. Remove the cap on the hydraulic oil tank. Install an adapter of vacuum pump to the cap mounting part in hydraulic oil tank. Operate the vacuum pump. W104-07-021 NOTE: Run the vacuum pump continuously while working in order to maintain negative pressure in the hydraulic oil tank. Vacuum pump Hose Adapter Air Bleed Valve W562-02-03-008 W1-4-1