1998 JAGUAR X308 lock

Power Steering -
Lubric
ants, Fluids, Sealants and Adhesives
Capacities
Torques


UnitSp
ecification
PAS flu
i
d
De
xr
on 3
UnitLi
t
ers
PAS syste
m1,0
PAS reservoi
r0,4
Com p
onent
Nm
Rac
k
mountin
g brac
ke
t to suspension crossbeam
40
- 50
PAS pump to front mounti
ng bracket
22
-
26
P
AS pu
mp assembly to cylinder block
38
-
48
Pul
l
ey to PAS pump
18
-
24
Hi
gh pressure hose to PAS pump22 -
28
Rack
pipe latch plate bolt8.5 -
11.5
R
e
servoir mounting bracket to body nuts
4 -

5
R
e
servoir mounting bracket clamp
4 -

5
Fluid cooler to body2.
5 -
3.5
Transfer pipe
to steering rack7 -
8
Transfer pipe
to hydraulic con
trol valve
7 -

8

P a
rts List
The variable ratio rack:
Incorporates teeth
of varying pitch and angle of contact, giving a variable pi
tch circle diameter which is a minimum
at the center of the rack and a maximum at the ends.
R e
duces excessive response to on-center stee
ring inputs during motorway driving.
Causes the steering action to become pro
gressively more
direct as the stee ring wheel is turned from the center
position.
Allows a low n u
mber of turns of the
steering wheel from lock to lock.
Ite
m
Par
t
Number
De
scr
iption
1—Steeri
ng rack
2—Tooth contact an
gle at
center of rack
3—Tooth c o
ntact angle
at ends of rack

Variable Ratio Steering Rack

Power Steering - Power Steering
Diagn
osis and Testing
Refer to the Description and Operation sub-section for details of the power operated steering system and Servotronic control
system.
Power Steer ing Pressure Test

Test Equ
i
pment

Parts List
In
stalling Test Equipment
To
in
stall the pressure test equipment:
Pla
c
e a suitable drain tray below the PAS pump.
Install a hose clamp
on
the re
servoir to pump hose prior to disconnecting any hoses, to avoid unnecessary loss of
fluid.
Di sc
onnect the hose from the PAS pump high pres
sure outlet.
Ins
tall the pump outlet to hose ad
aptor. Do not omit the O-ring.
Conn
ect the pump adaptor to control valve hose of the test equipment.
Install th
e adaptor in the high pressure hose previ
ously re
moved from the pump outlet.
Conne
ct the connector of the test equipment hose to the adaptor.
R
e
move the hose clamp fro
m the reservoir hose.
Start th
e engine.
With the control valve OPEN and the engine idling , the following system pressures may be checked:
Du
ring turning.
W
h
en the steering is
held on full lock.
With
the steeri
ng at rest.
• WARNINGS:
TO AVOID EXCESSIVE HEATING OF THE PAS PUMP, DO NOT CLOSE THE VALVE FOR LONGER THAN NECESSARY.
Ite
m
Par
t
Number
De
scr
iption
1—Pressure

gauge hose
2—Pump return hose
3—Pump return hose connector
4—Test equi
pment to
HP hose adaptor
5—Pump HP outlet to hose adaptor
6—Pump adaptor
to control valve hose
7—Control valve

Steering Linkage -
Torques



Comp

onent
Nm
Ou
te
r tie rod end to steering arm nut
71
-
85
Ou
te
r tie rod end lock-nut
51
-
69

The te
lescopic slider provides driver crash
protection by retracting automatically in the event of an accident; it is clamped in
position to a preset torque.
The motorized upper steering column has the following serviceable parts:
Igniti
on switch assembly.
Igni
ti
on key interlock solenoid.
Ti
lt
motor assembly.
Reach motor assembly.
Manu al Upper Column Assembly


Ite
m
Par
t
Number
De
scr
iption
1-L
o
wer mounting bracket
2-Crash tube
3-Harnes
s c
onnector bracket
4-Tilt motor

5-Reach m
otor
6-Upper
moun
ting bracket
7-Ignition switc
h
(hidden)
8-Igni
ti
on key interlock solenoid
9-S
t
eering wheel mounting shaft
It
e
m
Par
t
Number
De
scr
iption
1-Upper
cowl
2-Lower cowl
3-Colu
mn tilt adjustment lever

4-Col
u
mn reach adjustment lever
5-Di
mm
er switch
Motorized Upper Co
lumn Components

Is adjustable for both til
t and reach.
Has ca

ble operated reach adjustment, using a rack an
d wedge, with approximately 16 latched positions.
Has si
x latched tilt positions steppe
d at approximately 3° intervals.
Has an u
nlatched top tilt position, allowing the column to be
pulled down to engage the first detent without using the
tilt lever.
Has an instrument li
ghti
ng dimmer switch installed on the left-hand side of the lower cowl.
Manual Upper Column Components

The telescopic slider provides driver crash protection by retracting automatically in the event of an accident; it is clamped in
position to a preset torque.
The manual upper steering column has the following serviceable parts:
Igni
tion switch assembly.
Igni

tion key interlock solenoid.
Bowden

cable and lever assembly.
It
em
Par
t Number
De
scription
1-L

ower mounting bracket
2-Crash tube
3-Harnes

s connector bracket
4-Upper

mounting bracket
5-Ignition switc

h (hidden)
6-Igni

tion key interlock solenoid
7-S

teering wheel mounting shaft


The manu
al upper
steering column:

Steering Column Switches - Steering Column Switches

Description an
d Operation
Ig

nition Switch
The k
ey-operated ignition switch is located on the right-hand side of the steering colu
mn and has four positions.
Position 'O'

OFF. The only position in which the key can be inserted or re moved. With the key removed, the steering lock engages. The
key can only be removed when the tran smission is in the Park position.
Position 'I'

AUXILIARY. Certain circuits , i.e. radio and windows, can be operat ed without switching on the ignition.
Position 'II'

The wiper and washer switch i s
on the righ
t-hand side of the steering column and controls the fo llowing functions when the
ignition switch in position II.
In the OFF position:
The windscreen wiper is stationary and in the parked positio
n.
In the intermittent wipe position:
The wi per ope
rates intermittently, with
a variable time delay between wipes.
The time del
ay can be varied by rotating the column sw
itch collar, which has six positions and varies the delay
between two and 20 seconds. The collar is turned counter-clockwise to increase the delay.
In the normal speed position:
The wiper oper a
tes continuously at normal speed.
In the high speed position:
The wiper ope r
ates continuously at high speed.
Flick wipe operation:
Is obt
ained by pulling the switch
stalk towards the steering wheel.
F
e
atures a single wipe at normal speed if
the switch stalk is released immediately.
Fe
atures continuous wipe action
at normal speed while the swit ch stalk position is held.
Wash/W
ipe Operation
Th
e
wash/wipe function:
Is operat
ed by th
e button at the end of the switch stalk.
Op
erate
s the washers and wiper, while the butt
on is depressed, for up to 20 seconds.
Provides an addit
ional three sweeps of
the wiper after the button is released.
Provid
es a single drip-wipe sweep, four seconds af
ter the wash/wipe sequence has been completed.
Is disabled if the 'Washer Flu
id Low' message is di
splayed, but manual operat ion is still available.
Ite
m
De
scr
iption
1W
i
per off position
2Intermittent
wipe position
3Normal
speed wiper position
4High
speed wiper position
5Flick wipe position
6Wa
sh/wipe button
7D
e
lay adjustment collar

The was
h
/wipe button also operates the head
lamp power wash function (where fitted).
Wiper and Washer Switch