Defender 90 NAS. Manual — part 58
STEERING
7
REPAIR
34. Fully tighten ignition barrel bolts until heads
shear.
35. Connect multiplug and Lucars to ignition barrel.
36. Fit switch pack to steering column and secure
with screw.
37. Connect multiplugs to rear of switch pack.
38. Position column upper mounting bracket and
tighten bolts to
22 Nm, 16 lbf ft.
39. Fit clip to mounting bracket and secure harness.
40. Fit rubber and clamp to upper steering column.
41. Fit clamp bolts and tighten to
22 Nm, 16 lbf ft.
42. Fit lower steering column bolts and tighten to
22
Nm, 16 lbf ft.
43. Fit bolt securing column to upper mounting
bracket and tighten to
22 Nm, 16 lbf ft.
44. Fit lower half of steering column nacelle and
secure to stalk grommets.
45. Fit top half of steering column nacelle.
46. Fit and tighten screws securing nacelle to
steering column.
47. Fit instrument panel.
See INSTRUMENTS,
Repair, instrument panel
48. Reconnect battery negative lead.
49. Turn indicator cancelling ring so that slots are
vertical and lug with arrow points to the left.
50. Fit steering wheel with finisher attachment lug at
bottom, ensuring indicator cancelling forks locate
in ring slots.
51. Fit new washer and tighten securing nut to
50
Nm, 37 lbf ft.
52. Fit centre pad to steering wheel.
53. With steering lock engaged, and wheels in
straight ahead position, align assembly marks
and connect steering shaft universal joint to
steering column.
54. Tighten universal joint pinch bolts to
25 Nm, 18
lbf ft.
55. Fit air inlet hose between plenum chamber and
MAF sensor and tighten clips.
STEERING LOWER SHAFT
Service repair no - 57.40.25
Remove
1. Set road wheels and steering wheel in straight
ahead position.
2. Loosen clip securing air inlet hose to MAF
sensor.
3. Loosen clip securing air inlet hose to Plenum
chamber.
4. Remove air inlet hose.
5. Mark relationship of steering column inner shaft
to top universal joint.
6. Remove 2 bolts from top universal joint.
7. Remove lower bolt from bottom universal joint.
8. Loosen upper bolt from bottom universal joint.
9. Remove steering shaft and collect universal
joints.
10. Inspect universal joints for wear and excessive
play. Renew if necessary.
11. Inspect universal joints for stiffness. Lubricate if
necessary.
57
STEERING
8
REPAIR
Refit
12. Fit universal joints to steering shaft so pinch
bolts line up with flats on shaft.
13. Fit steering shaft assembly to steering column
and steering box.
14. Align bolt holes with grooves in splines. Fit pinch
bolts and tighten to
25 Nm, 18 lbf ft.
15. Fit air inlet hose between plenum chamber and
MAF sensor.
16. Tighten clips securing hose to plenum chamber
and MAF sensor.
DROP ARM
Service repair no - 57.50.14
Remove
1. Raise vehicle on a ramp [hoist].
2. Remove bolt securing steering damper to drag
link.
3. Disconnect steering damper from drag link.
4. Remove split pin from castellated nut securing
drag link to drop arm.
5. Remove castellated nut securing drag link to
drop arm.
6. Using special tool LRT-57-018, disconnect drag
link from drop arm.
STEERING
9
REPAIR
7. Mark relationship between drop arm and
steering box for reassembly.
8. Bend back tabs on drop arm locking washer.
9. Loosen nut securing drop arm to steering box
but do not remove.
10. Use special tool LRT-57-012 to release drop arm
from steering box spline.
11. Remove nut and discard locking washer.
12. Remove drop arm.
Refit
13. Centralise steering box.
See Adjustment,
power steering box - centralise
14. Align reassembly marks and fit drop arm onto
steering box splines.
15. Fit new locking washer and retaining nut to
secure drop arm to steering box. Tighten nut to
175 Nm, 130 lbf ft.
16. Bend over locking washer.
17. Fit drag link to drop arm and tighten castellated
nut to
40 Nm, 30 lbf ft.
18. Fit new split pin to castellated nut.
19. Fit steering damper to drag link.
20. Fit and tighten bolt securing steering damper to
drag link.
21. Lower vehicle.
TRACK ROD
Service repair no - 57.55.09
Remove
1. Raise vehicle on a ramp [hoist].
2. Centralise steering.
See Adjustment, power
steering box - centralise
3. Remove 2 bolts securing track rod protection
bracket to differential housing.
4. Remove track rod protection bracket.
57
STEERING
10
REPAIR
5. Remove 2 split pins from castellated nuts
securing track rod to swivel hubs.
6. Remove 2 castellated nuts securing track rod to
swivel hubs.
7. Using special tool LRT-57-018, release track rod
ball joints from swivel hubs.
8. Remove track rod.
Do not carry out further dismantling if component
is removed for access only.
9. Loosen 2 clamp bolts securing linkages to track
rod.
10. Remove linkages.
11. Fit new linkages to track rod and loosely tighten
clamp bolts.
12. Screw in linkages to full extent of threads and
fully tighten clamp bolts.
Refit
CAUTION: A track rod that is damaged or
bent must be renewed. DO NOT attempt to
repair or straighten it.
13. Fit track rod and connect to swivel hubs.
14. Fit and tighten castellated nuts to
40 Nm, 30 lbf
ft.
15. Fit new split pins to castellated nuts.
16. Fit track rod protection bracket to differential
housing and tighten bolts.
17. Check wheel alignment.
See Adjustment,
front wheel alignment
18. Lower vehicle.
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