Discovery 2. Manual — part 594
STEERING
ADJUSTMENTS
57-25
7. Syphon PAS fluid from reservoir.
8. Position container to collect PAS fluid spillage.
9. Clean steering box pipe pipe housing.
10. Remove bolt securing pipe clip to steering box.
Leaving the feed pipe from PAS reservoir in
place, release clip and PAS cooler pipe from
steering box. Discard lower 'O' ring.
11. Fit LRT-57-041 adaptor to steering box.
12. Fit PAS cooler pipe to LRT-57-041, align
retaining clip and tighten Allen bolt to 25 Nm (18
lbf.ft).
13. Hang pressure gauge in a safe position under
bonnet.
14. Remove PAS reservoir filler cap, fill to level
indicator and refit cap.
15. Connect battery earth lead.
16. Start engine and allow air to bleed from PAS
system by turning steering from lock to lock.
Stop engine and check PAS fluid level.
17. Ensure steering system and test equipment are
free from leaks.
18. Open test valve on LRT-57-001 and start
engine.
19. With the engine at idle, slowly turn the steering
wheel and hold on full lock.
20. Note the pressure reading on LRT-57-005.
21. Repeat the pressure check for the opposite full
lock.
22. Test pressure should be between 21 and 62
bar, (300 to 900) psi. Dependant on road
surface.
23. With the engine at idle, centralise the steering
wheel. Pressure should read 7 bar (100 psi) or
below.
24. Pressure outside the above tolerance indicates
a fault.
25. To determine if fault is in steering pump or
steering box, close the valve on LRT-57-001 for
a maximum of 5 seconds. Pump damage may
occur if test valve is closed for longer periods.
26. If gauge does not register between 75 and 103
bar, (1500 psi), (maximum pump pressure), the
pump is faulty.
27. If maximum pump pressure is correct suspect
the steering box.
28. On completion stop engine, disconnect battery
earth lead and syphon fluid from PAS reservoir.
29. Remove test equipment from LRT-57-002.
30. Remove bolt and clip from steering box.
31. Release PAS cooler pipe from LRT-57-041 and
discard 'O' ring. Leaving PAS reservoir oil feed
pipe in place, release LRT-57-041 from
steering box and discard 'O' ring.
32. Fit new 'O' rings to PAS cooler pipe.
33. Fit PAS cooler pipe to steering box, align
retaining clip, fit bolt and tighten to 25 Nm (18
lbf.ft).
34. Remove PAS reservoir filler cap, fill to level
indicator and refit cap.
35. Clean chassis member.
36. Fit splash shield and secure with screws.
37. Connect battery earth lead.
38. Start engine.
39. Start engine and allow air to bleed from PAS
system, by turning steering from lock to lock.
40. Visually check PAS system for leaks.
41. Check power steering fluid, if aerated, wait until
fluid is free from bubbles then top-up reservoir
to 'UPPER' level mark.
42. Visually check PAS system for leaks.
43. Dismantle test equipment.
STEERING
57-26
ADJUSTMENTS
STEERING
REPAIRS
57-27
REPAIRS
Power steering box - V8
$% 57.10.01
Remove
1. Raise front of vehicle.
WARNING: Do not work on or under a
vehicle supported only by a jack. Always
support the vehicle on safety stands.
2. Remove front road wheel.
3. Ensure steering wheel is centralised and fit
centralising bolt to steering box. Remove key
from steering lock and engage column lock.
4. Remove 3 bolts securing intermediate shaft
and universal joint.
5. Push intermediate shaft upwards, release and
remove universal joint.
CAUTION: Do not turn the steering wheel
with the intermediate shaft or universal joint
disconnected as damage to the rotary
coupler and the steering wheel switches
may occur.
6. Position container to catch oil spillage.
STEERING
57-28
REPAIRS
7. RH drive models:Remove 4 bolts securing oil
filter housing, remove housing and discard 'O'
ring.
CAUTION: Always fit plugs to open
connections to prevent contamination.
8. Remove bolt securing PAS pipe bracket to
steering box, release pipes and discard 'O'
rings.
CAUTION: Always fit plugs to open
connections to prevent contamination.
9. Remove securing nut and bolt and release
Panhard rod.
10. Remove nut securing drag link to drop arm.
Using LRT-57-036, break taper joint and
release drag link.
11. RH drive models with ACE: Remove nut
securing anti-roll bar link lower ball joint and
release joint.
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