Land Rover Defender 90 110 Workshop Book 4 Rover

STEERING 
34. Drive-in a new  bearing, up to the  shoulder,  with 
the  bearing  number  and  chamfered ends of the 
rollers trailing. 
35. Fit a  new ‘0’ ring seal to the cover. 
36. Check  that  the  cover  bearing  lubrication  passage 
and  bleed  nipple 
hole is clear. 
57 
. :.I..: .. . ... ... .. , 
ST 1 
2. Fit the  sector shaft  upper needle  bearings, number 
outwards, up  to the  shoulder. 
ST 
Fitting the valve  and worm assembly (input shaft) 
3. Fit the  input  shaft to the  steering  box...

57 
S7 
STEERING 
6. Secure preload  setting tool R01016 to the  input 
shaft  with the  grub  screw. Wind  string  round the 
tool  and tie a spring  balance  to  the free end 
of the 
string.  Whilst turning  the  input shaft cover 
clockwise,  pull the spring  balance  until  a  constant 
preload  reading 
of 0,69 Nm is achieved. 
6 / 
Fitting sector shaft and piston-rack assembly 
7. Fit the  sector  shaft to the housing  and  engage it 
with the input  shaft worm  in the  straight  ahead 
position....

~ . .. .. . .. ... 
... .. ..,, .- /. . 
STEERING 1571 
14. 
If the  difference  between  the two  points  at which 
the  backlash  is taken
-up  or disappears  is greater 
than 
90 (94 of a  turn)  it will  be necessary  to change 
the  shimming  behind the input  shaft inner  bearing 
cup. 
15. If  the  shimming  requires adjustment,  add a shim  on 
right
-hand  drive  steering  boxes if backlash starts 
too  quickly  on clockwise  rotation. Should backlash 
start 
too quickly  for anti-clockwise...

1571 STEERING 
26. Lubricate  and fit an ‘0’ ring  seal to the piston-rack 
cover. 
27. 
Fit the  piston  cover  to  steering  box.  Align the 
retaining  ring hole  in the  cover  with the cut
-out  in 
steering  box housing  and  insert  hooked  end 
of the 
retaining  ring in the 
hole. Using  special  tool 
LST123, rotate the cover  anti-clockwise  to feed  the 
ring  into  the  groove  until the ring  is fully  seated. 
This 
is a reversal of instruction 3 of the  dismantling 
procedure. 
. 
ST1956M...

STEERING 
n 
57 
/ 
ST1947M 
Fitting sector shaft oil seal 
40. Lubricate  the oil seal  and seal-saver LST12.5, and 
slide 
the seal  over  the tool,  lip side leading. 
fully home into  the housing. 
41. Using  the seal-driver  part of the tool,  push thc seal 37. Withdraw  the conical  seal-saver  and  place  the 
lower  part 
of the tool  with  the seal,  lip side 
downwards,  over the input  shaft. 
38. Place the seal-driver  part of the tool on top of the 
seal  and drive 
it fully home. 
ST1948M...

STEERING 
43. Fit the  drop  arm,  tab washer  and nut.  Tighten  the 
nut  to 
170 to 180 Nm (125 to 132 Ibs/ft). Fold  one 
side 
of the  tab  washer  over the drop  arm and the 
other  over a flat  against  the nut. 
44. Refit  the steering box to the  vehicle  and bleed  the 
hydraulic  system. 
NOTE: Bleeding and test of the power steering box 
is the same  as that for the Adwest Lightweight box. 
42  

w ,. ,., 
, ..... .. .,. ., ... .,, . .. ... 
STEERING 157 
SYMPTOM 
INSUFFICIENT POWER 
ASSISTANCE  WHEN 
PARKING 
POOR HANDLING 
WHEN  VEHICLE  IS 
[N MOTION 
3YDRAULlC FLUID ,EAKS 
3XCESSIVE NOISE 
:RACKED STEERING 3ox 
POWER STEERING 
FAULT DIAGNOSIS 
P CAUSE 
(1) Lack of fluid. 
(2)  Engine  idling speed  too low. 
(3) Driving  belt slipping. 
(4) Defective hydraulic  pump and or prcssure  relief valve. 
Lack  of castor action. 
Steering  too light 
and/or over- jensitive. 
Damaged  pipework,  loose...

OVERHAUL DROP ARM BALL JOINT 
. 
The drop  arm ball joint  can be overhauled and  there is 
a  repair  kit available  which consists 
of the following 
items. 
Ball  Pin  Ball lower socket 
Retainer  Spring 
Spring  rings 
‘0’ ring 
Dust  cover  Cover plate 
Ball  top socket  Circlip 
Dismantle 
1. Remove the drop  arm  from  the vehicle  and clean 
the exterior. 
2. Remove  the  spring  rings and prise-off the  dust 
cover. 
3. In  the  interests of safety,  position  the ball  joint 
under  a press  to...

STEERING 
. I !. 5. Since the ball  pin cannot  be  removed  with the 
ball  pin  to release  the  retainer  and to remove  the 
pin  from  the housing. 6. Using  a  sharp-edged  punch  or chisel,  drive  the 
i: 4- retainer in position,  tap the  threaded  end  of the  ball lower  socket  from the  housing.  Should 
difficulty  be experienced,  apply gentle  heat to the 
housing  and  then  continue  to  drive the socket 
from  the housing. 
7. Clean  the housing  and remove  any burrs. 
Assemble 
8....

El STEERING 
TRACK ROD AND DRAGLINK - All Models 
When adjusting  or renewing a track  rod or draglink it is 
important to ensure  that the ball joints  are assembled in 
the  same  angular  plane and that  the ball  joint  pins are 
central 
in their  respective  housings,  as  example ‘A’ 
illustrated  below. Premature wear could  result if the 
pins are inclined  to one-side  as illustration B. 
CAUTION: A track rod  or draglink  that is damaged or 
bent  must  be renewed.  No attempt should be made...