belt JAGUAR XJ6 1994 2.G User Guide

@ Steering
10.1.3 Steering Hydraulic System Major Components
Engine driven rotary vane pump (belt driven 12 cylinder; direct drive from timing gear 6 cylinder) with falling
flow characteristic (as
pump speed increases fluid flow decreases) and integral pressure relief valve.
Remote fluid reservoir with integral 'return' side filter.
Steering rack (incorporating speed sensitive transducer).
Steering control module
(SCM).
Fluid cooler integral with engine coolant radiator and associated pipe-work.
10.1.4 Hydraulic System Features
The 'Servotronic' system reduces steering input loads during parking and low speed manoeuvres and progressively
increases input loads as vehicle speed rises. This feature enhances steering feel.
10.1.5
Rotary motion of the steering wheel is converted, via the steering gear pinion to lateral motion of the rack. Hydraulic
assistance is provided by pressurized fluid being directed against the rack bar piston in the rack cylinder. The pressure
applied to each side of the rack piston is controlled by the pinion valve which varies the restriction through which the
flow for each side of the rack piston must pass.
Hydraulic System Operating Principle (see illustrations on next three pages)
Section on X X
J57-277
A. Steering rack F. Torsion bar 0 Radial groove B. Driving pinion G. Oil pump 1 Speedometer
C. Power cylinder H Pressure & flow 2 SCM D. Rotary disc valve limiting valve 3 Transducer
E. Control sleeve N Radial groove
Fig.
1 Major components & hydraulic flow - Neutral position ~
Issue 1 August 1994 X300 VSM 2

@ Steering
Cause
Fluid level low?
Drive belt slack
(V12)
Pump drive loose (6cyl)
center pressures low
Air in system due to loose connection
Pump shaft seal faulty (fluid loss)
Delivery pressure or flow too low
Return flow restricted by blocked reser
-
voir filter
Both check valves blocked
Rack damper too
tight
Lower column incorrectly set
Excessive upper column friction
Faulty rotary valve or seal
Drive belt slack
(VI217
Engine idle speed too low
Pump drive loose
(6cyl)
Air in system due to loose connection
Pump shaft seal faulty (fluid
loss)
Delivery pressure or flow too low
Fluid level low?
tire pressures
high
Air in system due to loose connection
Stiff or seized steering joint
Rack damper too tight
Castor or tracking error
Lower column over extended
Fluid level low?
Air
in system due to loose connection
Pump shaft seal faulty (fluid
loss)
Rack damper loose
Pinion bearing faulty
Rack or column fixings loose
Rack mounting bracket loose
Rack mounting bush loose
Free play in column assembly
10.4 DIAGNOSTIC PROCEDURE
10.4.1 Introduction
The following diagnostic procedures are provided to rapidly pin-point mechanical faults which are not interrogated
by electrical means. Diagnostic procedures which require dedicated electrically operated equipment are dealt with in the 'Electrical Diagnostic Manual' (EDM) but may be mentioned here for reference.
10.4.2 Preliminary Action
Before any problem solving is undertaken it is essential that the fluid level and where applicable, belt tension, is
checked and if required corrected.
CAUTION: It is imperative that the power steering system does not become contaminated in any way. Always de cant fluid from a fresh sealed container and clean the area around the reservoir neck both before and after
topping-up. Never return drained fluid to the system.
10.4.2 Diagnostic Chart 1
Remedy
Rectify fluid loss and or top up
Re
-tension belt
Renew pump
Set to specification
Secure connection and bleed air out
Renew pump
Renew pump
Renew reservoir
Renew rack
Renew rack
Set to specification
Renew upper column
Renew rack
Retension belt
Reset idle speed
Renew
pump
Secure connection and bleed air out
Renew
pump
Renew pump
Rectify
fluid loss and or top up
Set to specification
Secure connection and bleed air out
Test and renew faulty joint
Renew rack
Check geometry and rectify
if required
Set to specification
Rectify fluid
loss and or top up
Secure connection and bleed air out
Renew pump
Renew rack
Renew rack
Tighten to specification
Renew rack
Renew rack
Check and rectify as required
Trouble
Heavy on both sides
Heavy on one side
Heavy when steering
rapidly
Vague feel about center
Knocking
1 vibration felt
at steering wheel
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Issue 1 August 1994 6 X300 VSM

@ Steering
10.4.4 Diagnostic chart 3
Trouble
Hydraulic noise when
turning lock to lock
Continuous pressure
relief valve operation
Continuous noise
Cause
Fluid level low?
Air ingress at connections
Air ingress through feed hose lining
or
skin
Air ingress at pump front seal
Water contamination caused by fractured
cooler pipe within engine coolant radi
-
ator
Pump starvation or cavitation caused by
twisted or trapped feed hose
Pump starvation caused by blocked filter
Worn
pump
High pressure hose (pump to rack) dam-
aged or restricted
Fluid level low?
Drive belt loose
(12 cyl only)
Drive pulley loose
Steering pump mounting
(4 loose
Drive 'dog' loose, slipping or incorrectly
fitted
(6 cyl only)-
Hose or pipe fretting on body or chassis
structure
Hose twisted or restricted
Remedy
Rectify fluid loss and or top up
Check and tighten all connections to spec
-
ification
Renew faulty
'0' rings or Dowty washers
Renew porous
1 damaged hoses
Renew
pump
Renew radiator. Flush and drain steering
system twice
minimum, check for noise
and system performance (Pump is most
susceptible to damage due to
loss of lu-
brication and may have to be renewed)
Reroute or relieve pressure
Renew reservoir
Renew pump
Renew hose
Rectify
fluid loss and or top up
Inspect for damage and renew as required
Tighten pulley to specification
Tighten to specification
Investigate
& rectify as required
Rectify routing
Rectify routing
Issue 1 August 1994 8 X300 VSM

12.6 REAR WHEEL SPEED SENSOR - RENEW
SRO
70.60.04
. Drive the vehicle onto a ramp or raise the back and support
on two stands.
. Cut and remove the ratchet strap securing the speed sen- sor harness to the brake hose.
. Undo and remove the speed sensor to hub carrier secur- ing bolt (Fig. 1).
Remove the speed sensor from the hub carrier and allow
it to hang free, forward of the 'A' frame.
Open both rear doors and displace the rear seat cushion
from the seat pan brackets. Reposition the rear seat
cushion forwards.
9 Push the seat belts/ buckles through the seat cushion slots
and remove the rear seat cushion from the vehicle.
. Displace the RH side of the seat pan sound proofing (1 Fig. 2) to gain access to the speed sensor harness (2 Fig. 2).
9 Displace the speed sensor harness grommet (3 Fig. 2) from the seat pan aperture.
. Feed the speed sensor harness through the seat pan aper- ture and disconnect the multi-plug (4 Fig. 2).
9 Position the new speed sensor harness and connect the
multi-plug.
. Feed the speed sensor harness through the seat pan aper- ture to hang free below the vehicle.
. Refit and fully seat the speed sensor harness grommet to
the seat pan aperture.
Reposition theseat pan sound proofing to its original posi- tion.
Position the rear seat cushion and feed the seat belt / buckles through the slots.
Locate the rear seat cushion into the seat pan brackets (5 Fig. 2).
. Stow the seat belts / buckles.
. Position the speed sensor harness rearwards over the 'A'
Fit and tighten the speed sensor to hub carrier securing
Secure the speed sensor harness to the brake hose using
frame
and locate into the hub carrier.
bolt.
a ratchet strap. Trim the ratchet strap. Fig.
1
Fig. 2
Issue 1 August 1994 22 X300 VSM
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Body Components & Trim .
SECTION CONTENTS
Sub-Section Title SRO Page
13.5.6 ............ Hood lock Control Cable RH or LH, Renew ............................................. 43
13.5.7.
........... Hood Striker Assembly, Renew ........................................................ 43
Hood lock Release Handle. Renew
.................................................... 43
13.5.8 ............
13.6 ............. Glazing (Fixed) ..................................................................... 44
13.6.1
............ Glazing (Fixed). Description .......................................................... 44
13.6.2.
........... Interior Mirror, Renew ............................................................... 44
13.6.3.
........... Sun Visor Mirror Assembly, Renew ..................................................... 44
13.6.4.
........... Exterior Mirror, Renew ............................................................... 44
13.6.5
............ Exterior Mirror Glass, Renew .......................................................... 44
13.7
............. Carpets ........................................................................\
.... 45
13.7.1
............ Carpets, Description ................................................................. 45
13.7.2.
........... Removal of Stains - General Information ................................................ 45
13.7.3.
........... Powder Cleaning - Removal of Small Spillage Stains ...................................... 45
13.7.4
............ Spot Cleaning- LocalizedStains ...................................................... 46
13.7.6
............ RepairofDamagedCarpet ........................................................... 47
e
13.7.5. ........... Carpet Cleaning and Stain Removal Materials ........................................... 47
13.8
............. Seating and Seat Belts ................................................................ 48
13.8.1
............ Seating, Description ................................................................. 48
Front Manual Seat, Renew
............................................................ 48
13.8.3.
........... Front Seat (Power Operated), Renew ................................................... 48
13.8.2
............
13.8.4 ............ Front
Seat Head Restraint (Power Operated), Renew ...................................... 49
13.8.5.
........... Front Seat Head Restraint (Power Operated), Renew ...................................... 49
13.8.6
............ RearSeat Cushion. Renew ............................................................ 49
13.8.7 ............ RearSeatSquab. Renew ............................................................. 49
73.8.8 ............ Seat Belts, Description ............................................................... 50
13.8.9 ............ Emergency Locking Retractor/ Automatic Locking Retractor Seat Belts ...................... 50
13.8.10
.......... Tear loop Seat Belts, Description ...................................................... 51
13.8.1 I ........... Front Seat Belt Buckle Unit, Renew .................................................... 52
13.8.12
.......... Front Seat Belt, Renew ............................................................... 52
13.8.13
.......... Rear Inertia Seat Belt, Renew ......................................................... 52
13.8.14
.......... Rear, Center, Static Seat Belt, Renew ................................................... 53
iii Issue 1 August 1994

Body Components & Trim -
Fixing
Seat belts
Front tear loop belt buckle to bracket fixing
Front belt buckle to bracket fixing
Tightening Torque (Nm)
30 - 40
30
- 40
Front belt reel bracket to body fixing
Front belt anchor fixing 30 - 40
30 - 40
7
-10
23
- 27
30
- 40
30 - 40
30
- 40
30 - 40
30
- 40
Front belt upper guide fixing
[Height adjuster to 'B' post screws
Height adjuster to seat belt anchor retaining
nut
Rear inertia belt anchor fixing
Rear inertia belt bracket to body fixing
Rear inertia belt reel securing bracket to body fixing
Rear inertia
/ static belt buckle bracket to body fixing ~
Rear
static belt / inertia buckle bracket to body fixing
: Sunroof ~
Sunroof frame
to roof
30 - 40
4
-5
111. SERVICE MATERIALS
Sunroof to frame 4-5
'Trunk
Compact disc autochanger bracket to body
I Battery clamp to tray
I Warning triangle lower bracket to trunk lid inner panel
9- 11
7
-10
1.5
X300 VSM V Issue 1 August 1994
I trunk lock barrel to lid
j Trunk latch actuator to bracket
Trunk latch actuator mounting to
lid
j Electrical carrier box to body
Load floor support block to body
Trunk seal retainer to body
trunk latch to lid and striker to body
4-5
7
-10
7
-10
7
-10
5
-7
9- 11
9- 11
Description Uses
'Fibrefresh' Carpet Shampoo
'1001' Foam Shampoo
'Novatreat' Cleaning
of water
-based stains from
carpets
Cleaning of water
-based stains from
carpets
Cleaning of water
-based stains from
carpets
Notes
'Genklene' (Trichloroethane)
'Spot Remover' Cleaning
of grease or oil based
stains from carpets
Cleaning of grease or oil based
stains from
caroets

Body Components & Trim
13.1 GENERAL DESCRIPTION
This section covers the following areas of the vehicle body:
0 Battery cover
0 Carpets - passenger compartment, trunk
0 Console - including radio, glovebox
0 Doors -frames, sealing, locks, trim, glazing
0 Fascia
0 Fuel filler flap assembly
0 Footrest
0 Hood - liners, gas strut, locking,
0 Illuminated sunvisor - inc mirror
0 Interior trim - trim pads, finishers, veneers
0 Mirrors - internal, external
0 Rear parcel tray
0 Roof console
0 Roof lining (headlining)
o Seats -front, rear -
0 Seat belts - front, rear
0 Sliding roof
0 Steering column cowl
0 Underscuttle pad
Refer to Appendix
A4 - Body Systems & Body Repair for information relating to crash-damage repairs and to the fol- lowing external components: exterior trim, bumpers, windscreen and rear screen, closures and sealing.
Refer to Section 15, Electrical for details of the following motors and solenoids: driver's and interior mirrors, window
lift, sunroof, seat / headrest and locking mechanisms (doors, trunk and filler cap).
Refer to Section 15, Electrical and Electrical Diagnostic Manual (EDM) for details of the passenger and driver airbags.
X300 VSM 1 Issue 1 August 1994

Body Components & Trim -
13.3.32 'A' Post lower Trim Pad, Renew
SRO 76.13.30
. Locally displace the draught welting from the front door
= Undo and remove the 'A' post lower trim pad quarter turn
. Displace and remove the 'A' post lower trim pad by pulling
. Fit and seat the new 'A' post lower trim pad, engaging the
. Fit and secure the 'A' post lower trim pad quarter turn fas-
Reposition and fully seat the draught welting to the front
aperture
flange.
fastener. rearwards to disengage clips and place aside.
clips on the front door flange.
tener. door aperture flange.
13.3.33 Rear Quarter Upper Trim Pad, Renew
. Remove the rear seat belt upper anchorage RH or LH.
. Remove the trim pad securing screw.
. Slacken but do not remove thecombined grab handle and
. Unclip the rear quarter trim pad and remove.
. To refit, carry out reversal of the above procedure, noting
that seat belt fixings must be tightened to the specified
torque.
coat hook securing screws.
13.3.34 'B' Post Upper Trim Pad, Renew
. Position front seat and squab fully forward.
. Remove seat belt lower anchorage and feed the belt
through the lower trim aperture.
. Remove seat belt upper anchorage.
. Remove trim finisher upper seat belt aperture and door
. Release upper trim pad from its fixings by exerting down-
. To refit, carry out reversal of the above procedure.
aperture edge
trim.
ward pressure.
WARNING: ENSURE THAT THE SEAT BELT IS CORRECTLY
ASSEMBLED AND FlXlNGS TORQUE TIGH-
0 TENED.
13.3.35 'B' Post lower Trim Pad, Renew
. Position front seat and squab fully forward.
Remove seat belt lower anchorage and feed the belt
. Release trim pad quarter turn fasteners and remove trim
Remove fasteners from trim pad as required.
= To refit, carry out reversal of the above procedure.
through the lower
trim aperture.
pad.
WARNING: ENSURE THAT THE SEAT BELT IS CORRECTLY
ASSEMBLED AND FlXlNGS TORQUE TIGH- TENED.
X300 VSM 35 Issue 1 August 1994

Body Components & Trim a
13.8 SEATING AND SEAT BELTS
13.8.1 Seating, Description
The front seats are available in a range of materials consisting of sculptured fabric / leather, leather, sports cloth / leather, embossed leather / leather and autolux. Both seats are available as 'manual', ie manually adjustable with elec- tric rise and fall, manual height adjustment headrests, 'power', ie 12-way electric adjustment, 'power with memory', ie memory controlled, 12-way electric adjustment of seat, steering column and exterior rear view mirrors and 'heated',
ie with integral heating.
Front seats are based on a non
-handed, one-piece frame which includes cushion and squab frames and seat adjuster
mechanisms. The seat switchpacks (powerseats) are fitted to the outboard side of driver and passenger seats; on 'man- ual'seats, the seat height adjustment switch is similarly located. Seat control modules SCMs are contained within the
seat assemblies. The seats are secured through four mounting points to the vehicle floor.
Rear seats are of the bench type with
full width removable cushion and individual seat squabs.
Electrical components installed on the heel board below the rear passenger seat are protected
by two covers secured
by two locating brackets on the floor and by two latches on the cover. The latches are released by pushing down on
the two recesses in the top edge of the cover.
13.8.2 Front Manual Seat, Renew
. Disconnect vehicle battery ground lead.
. Disconnect electrical connections as required.
. Remove the seat forward fixings.
Move the seat fully forward.
. Remove the rear fixing / slide covers.
. Remove the seat rear fixings.
. Reposition seat for access and remove seat from vehicle.
. To refit seat, carry out reversal of above procedure.
13.8.3
. Disconnect vehicle battery ground lead.
. Move the seat fully forward to gain access to squab back
Remove squab side fixings, disconnect lamp harness and
. To refit, carry out reversal of the above procedure.
Front Seat (Power Operated) Squab Back
Cover, Renew
cover outer fixings.
remove squab back cover.
13.8.4
. Position seat as required for access.
. Disconnect vehicle battery ground lead.
. Release sound insulation retainers and displace insula-
. Remove SCM cover, move SCM aside and remove seat
. Remove the seat forward fixings and move the seat fully
. Remove the seat rearward fixing covers and remove the
. Disconnect multi-plugs, seat switch and motor harness to
. Release harness tie strap and remove seat assembly from
Front Seat (Power Operated), Renew
tion.
switch
multi-plug from its mounting bracket.
forward. seat rearward fixings.
SCM.
vehicle.
. To refit, carry out reversal of the above procedure, ensur- ing that fixings are tightened to the correct torque.
Issue 1 August 1994 48 X300 VSM
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Body Components & Trim
13.8.5
Renew
Front Seaf Head Restraint (Power Operated),
. Recline the seat to give access to the head restraint from
. Disengage the head restraint from its retainers with a
= To refit, carry out reversal of the above procedure, ensur-
the rear.
sharp upward
pull.
ing that the restraint is fully locked in position.
13.8.6 Rear Seaf Cushion, Renew
. Release the seat cushion quick release fittings.
. Remove the seat cushion from the vehicle.
To refit, carry out reversal of the above procedure.
13.8.7 Rear Seat Squab, Renew
. Release the rear seat cushion quick release fittings and re-
. Release the rear squab fixings and remove the squab.
. Move the rear seat belts aside and remove the squab as-
. Remove the armrest from the squab assembly.
. Remove the seat belt stowage pocket.
To refit, carry out reversal of the above procedure.
move
the cushion.
sembly from the vehicle.
Issue 1 August 1994 X300 VSM 49