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Discovery 2, TD5, PAS / ACE joint hydraulic fluid reservoir removal


boaterboy
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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!

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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.

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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.
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