Land Rover Defender 90 110 Workshop 1984 Rover Manual

STEERING 
/- .: ,,;...-, .: . .. _.. Sector shaft cover assembly ,..& . ..__., ....,_ . ,..,. =: ... i..Y., ..? 
31. The cover,  bush and seat  are supplied  as a U.. 
complete  assembly for replacement purposes. 
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57 
Sector shaft adjuster  locknut 
32. The locknut  functions also  as a fluid seal  and must 
be  replaced  at  overhaul. 
Valve  and worm assembly 
33.  Examine  the  valve rings  which  must be free  from 
cuts,  scratches  and grooves.  The valve  rings  should 
be a loose fit in the...

571 STEERING 
Rack thrust  pad and adjuster 
44. Examine the thrust pad for  scores. 
45.  Examine the  adjuster for wear  in the  pad  seat. 
46. Examine the nylon  pad for distortion and  adjuster 
grub  screw  assembly  for wear. 
46 
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45 
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44 
 
A 
1 W RR934M 
Rack and piston 
47. Examine for excessive  wear on the rack  teeth. 
48.  Ensure  the thrust  pad  bearing  surface is free  of 
scores and  wear. 
R 
Input shaft needle bearing 
52. If necessary,  replace the bearing.  The...

STEERING 
Sector shaft seal 
57 
55. Fit the oil seal,  lipped  side first. 
56. 
Fit the extrustion  washer. 
57. 
Fit the  dirt  seal,  lipped  side last. 
58. Fit the circlip. 
Fitting the valve and worm assembly 
59. If removed,  refit the original  shim washer(s) and 
the  inner  bearing  cap. Only  vaseline  must 
be used 
as  an  aid 
to assembling  the bearings. 
NOTE: If  the  original  shims  are not  available,  fit 
shim(s) of 0,76 mm (0.030 in) nominal thickness. 
, ...__ :>., .. ,.. 

571 STEERING 
Fitting the rack  and piston 
68. Screw  a suitable  bolt into the piston  head for  use as 
an  assembly  tool. 
6 
. 
RR941M I J 
69. Fit the  piston  and rack  assembly so that the piston 
is 63,5 mm (2.5 in) approximately  from the outer 
end  of the  bore. 
70. Feed  in the  sector  shaft using seal  saver  606604 
aligning  the centre gear  pitch 
on the rack  with  the 
centre  gear tooth  on the  sector  shaft.  Push 
in the 
sector  shaft, and, at the  same  time rotate  the input...

STEERING 1571 
:-, ,. ,.Gz.::. ._,._ .* ,..z..y 
81. Fit the  retainer  ring to the groove  with one end of 
the  ring  positioned  12 
mm (0.5 in)  approximately 
from the extractor  hole. 
.. ./.>, . _. .... 
Adjusting  the sector  shaft 
82. Set the  worm on centre  by rotating  the input  shaft 
half  the total  number 
of turns from either  lock. 
RR945M 
83. Rotate  the sector  shaft  adjusting  screw  anti- 
clockwise  to  obtain backlash  between the input 
shaft  and the sector shaft. 
84....

57 
NOTE: Do not  maintain  this pressure for more  than 
30 seconds  in any  one minute to avoid  overheating 
the 
fluid and possibly damaging  the seals. 
STEERING 
97.  Road  test the vehicle. 
KEY TO ADWEST LIGHTWEIGHT POWER STEERING BOX 
1. Housing. 
2. Housing  bushes. 
3.  Seal. 
4.  Back
-up washer. 
5. Back-up seal. 
6.  Circlip. 
7. Seal. 
8. Drop-arm. 
9.  Tab  washer. 
10. Sector  shaft nut. 
11. Sector  shaft and follower  assembly. 
12.  Seal. 
13.  Bush. 
14.  Cover  plate. 
15.  Self...

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29  

171 STEERING 
POWER STEERING  SYSTEM - Adwest Lightweight 
box 
Bleed 
1. Fill thc steering  fluid reservoir  to the  mark  on the 
side 
of the  reservoir  with  one of the recommended 
fluids. 
2. Start  and run the engine  until it attains  normal 
operating  temperature. 
3. Check and correct  the reservoir  fluid level. 
NOTE: During  the carrying  out of items 4, 5 and 6, 
ensure that the steering  reservoir is kept full. Do not 
increase  the engine  speed 
or move the steering  wheel. 
4. Run the...

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STEERING 157 
11. If the  pressures  recorded during the  foregoing test 
are  outside  the specified  range, or pressure 
imbalance 
is recorded,  a fault  exists  in the  system. 
To determine if the  fault is in the  steering  box or 
the  pump,  close the  adaptor  tap  for a period  not 
exceeding  five seconds. 
12. If the gauge  fails to register  the specified  pressures, 
the  pump 
is inefficient  and the  pump  relief valve 
should  be examined  and renewed  as necessary. 
13.  Repeat...

STEERING 
GEMMER POWER STEERING BOX OVERHAUL 
Special  tools: 
Drop  arm puller 
MS 252 A 
End cover  wrench  adaptor LST123 
Input shaft oil seal  installer LST124 
Sector  shaft oil seal  installer LST125 
Valve  seal installer  and valve  ring compressor LST126 
Preload  setting tool R01016 
Dismantle 
1. Remove  the steering  box from  the vehicle. 
2. Bend  back the  locking  tab and  remove  the drop 
arm  nut. Using  special 
tool MS 252 A or a suitable 
alternative,  withdraw the drop  arm from...