boaterboy Posted February 13, 2015 Share Posted February 13, 2015 I need to remove the joint PAS /ACE hydraulic fluid reservoir. Providing I clamp with hose clamps the two ACE hoses which exit the bottom of the reservoir before removal of the reservoir will there be any danger of air entering the ACE system? I would aim to ensure that the ends of the two hoses remain the highest point in the system and reconnect & refill the reservoir before removing the clamps. Will the small amount of air which will be contained in the end of the hoses, ie between the clamps and the hose ends, just rise to the surface of the fluid in the reservoir? Or, will bleeding the system be necessary? And, if so, how is this done, please? Thank you very much in anticipation of help from those who have gone before in this exercise! Quote Link to comment Share on other sites More sharing options...
sierrafery Posted February 14, 2015 Share Posted February 14, 2015 as long as the pump remains primed, and if you'll follow your plan it would the small amount of air which gets unto the system will not be an issue, go for a harsh ride with much cornering and some bumps after that and the system will bleed itself Quote Link to comment Share on other sites More sharing options...
boaterboy Posted February 14, 2015 Author Share Posted February 14, 2015 Thank you, sierrafery, for replying to my post. I really appreciated your help. Sorry to be a trouble, but would you know whether the PAS system can be bled by moving the steering wheel from lock to lock, presumably with the vehicle up on axle stands to prevent overloading the steering system? It's the PAS system which is at the root of my problem - all the fluid drained away when one of the pipes at the base of the hydraulic fluid reservoir cracked and broke off. Quote Link to comment Share on other sites More sharing options...
sierrafery Posted February 15, 2015 Share Posted February 15, 2015 here is the procedure: STEERING Hydraulic system - bleed Bleed 1. Clean PAS fluid reservoir around filler cap and fluid level indicators. 2. Remove filler cap from PAS fluid reservoir. If necessary, fill PAS fluid reservoir to upper level indicator with recommended fluid. +CAPACITIES, FLUIDS AND LUBRICANTS, Fluids. CAUTION: Ensure no dirt is allowed to enter the steering reservoir when the cap is removed. 3. Start engine and run to normal operating temperature. 4. Position container to catch fluid spillage from steering box. 5. With engine at idle speed, and an assistant turning the steering from lock to lock, loosen bleed screw on top of steering box. Keep PAS fluid reservoir topped up and allow all air to bleed from system. When fluid from bleed screw is free of air, tighten bleed screw. CAUTION: Do not hold steering at full lock for longer than 10 seconds. 6. Stop engine. 7. Clean spilled PAS fluid from steering box and surrounding area. CAUTION: Power steering fluid will damage paint finished surfaces. If spilled, immediately remove fluid and clean area with water. 8. Check fluid level in PAS fluid reservoir and fill to upper level mark. If fluid is aerated, wait until fluid is free from bubbles. 9. Fit PAS fluid reservoir filler cap. Quote Link to comment Share on other sites More sharing options...
boaterboy Posted February 18, 2015 Author Share Posted February 18, 2015 Thank you for your help, sierrafery. Quote Link to comment Share on other sites More sharing options...
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