Land Rover Defender 90 110 Workshop Book 4 Rover

STEERING 
These checks  should  be carried  out first  on one  lock, 
then  on the  other. 
57 
CAUTION: Under  no circumstances  must  the  steering 
wheel  be  held on full  lock  for  more than 
30 seconds  in 
any  one  minute,  otherwise  there will  be  a  tendency 
For 
the oil to overheat  and possible damage  to the  seals  may 
result. 
LU 
ST915M 
110 and 90 Engine Diagram 
A Steering  box. 
B Steering  pump. 
C Existing hose, steering  box to pump. 
D Hose JD10-3A. 
E Test adaptor JD10-2. 
F...

57 
AD JUST POWER STEERING BOX 
STEERING 
NOTE:  The condition of adjustment  which must be 
checked is one of minimum  backlash without 
overtightness  when the wheels  are in the  straight
-ahead 
position. 
1. Jack  up the front  of the  vehicle  until the wheels  are 
clear 
of the  ground. 
WARNING:  Wheels must be chocked  in all 
circumstances. 
2. Gently rock  the  steering  wheel about the  straight- 
ahead  position  to obtain  the ‘feel’ of the backlash 
present.  This  backlash must  not  be...

STEERING 15711 
.. 12. Remove the ‘0’ ring  seals  from the grooves  in the 
13. Carefully  tilt the  pump  body,  and  remove  the six 
14.  Draw  the carrier  off 
the shaft, and remove  the drive 
15. Remove  the shaft  from the body. 
“ .- *I. 1 pump body. 
rollers. 
pin. c ”- 
5,42 
. ,., . . .. . .... 
15,28 
13fl 12,33 
// 
RR186M 14,30 
16. Remove  the cam  and the cam  lock  peg from  the 
pump  body. 
17.  If necessary  withdraw the sealed  bearing  from the 
shaft 
18. Remove the  shaft seal...

STEERING 
32 
\\- 
6 a$ 
POWER STEERING BOX OVERHAUL - Lightweight 
Adwest 
Service  tools: 
‘C’ Spanner - LST120 
Worm adjusting  socket - LST119 
Drop arm extractor - MS252A 
Ring  expander - 606602 
Ring  compressor 
- 606603 
Seal  saver,  sector shaft 
- 606604 
Seal  saver,  valve and worm 
- R01015 
Torque  setting tool - R01016 
Dismantle 
1. Remove  the  steering arm from  the vehicle,  and 
withdraw  the drop arm. 
33.  Smear  a fine trace 
of Loctite  275 to the  pump  body in 
a ‘figure 
of...

STEERING 
1 . ’. 
57 
5-K lll  
. RR1695M w 
6. Slacken the grub  screw  retaining  the  rack pad 
7. Remove the  rack pad adjuster. 
8. Remove  the sector shaft  adjuster locknut. 
9.  Remove the sector  shaft cover fixings. 
adjuster. 
10. Screw 
in the sector  shaft adjuster  until the cover  is 
11.  Slide  out the sector  shaft. 
removed. 
1 
RR924M 
15. Tap 
the splined  end of the  spindle  shaft to free  the 
16.  Withdraw  the bearing  cup and 
cagcd ball  bearing 
bearing. 
assembly. 
l6 17  A...

157 I STEERING 
Steering box seals 
19. Remove  the circlip  and seals  from the sector  shaft Steering 
box casing 
22.  If necessary,  replace  the sector  shaft bush,  using 
23.  Examine  the piston  bore for traces 
of scoring  and 
housing 
bore. 
NOTE: Do not remove  the sector  bush unless  wear. 
replacement  is required.  Refer to instruction 
22. 
suitable  tubing as a drift. 
20. Remove the circlip  and  seals  from the input  shaft 
housing  bore. 
RR929M v/ 22 23 
24. Examine  the  inlet...

STEERING 
/- .: ,,;...-, .: . .. _.. Sector shaft cover assembly ,..& . ..__., ....,_ . ,..,. =: ... i..Y., ..? 
31. The cover,  bush and seat  are supplied  as a U.. 
complete  assembly for replacement purposes. 
L 
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 
I 
I 
45 
I 
I 
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...