1988 CITROEN CX Wheel

REMOVING AND REFITTING
AN UPPER WHEEL ARM
REMOVAL
Raise and support the front of the vehicle on stands
6602-T.
Depressurize the hydraulic circuit.
Set the height control lever to the (( low )) position
Remove, Fig. I :
- the wheel,
- the suspension cylinder pivot retaining pin (I 1,
- the anti-roll bar link rod nut (2).
Uncouple ball-joint (3) from the anti-roll bar link rod
using puller 6320-T. Fig. II.
Screw up the tool nut in the ball-joint stem. Fit the
tool cross piece and pin.
Extract, Fig. Ill,
- the nut from upper ball-joint (4).
Disconnect the upper ball-joint.
NOTE:
If the vehicle is fitted with the ABS, the removal of
the upper ball-joint nut requires pushing back the
transmission.
Remove:
- the pin, C
- the nut lock,
- the drive-shaft nut.
Fig. IV
- nut (51,
Fig. V
- the spindle with extractor 6303-T.
Remark: An adjustment shim may be found between
the arm and the front face of the subframe. REFITTING
The LH wheel arm is different from the RH one. Boss
u a )a should be directed towards the rear of the
vehicle when the wheel arm has been fitted.
Reinstall, Fig. V :
- the arm fitted with its thrust cups (7)
frhe thinner cup facing rearwardsl,
- the adjustment shim (6) found on dismantling, facing
forward.
Engage the spindle ; place a new NYLSTOP nut.
Tighten to 12.5 mdaN
Recouple the upper ball-joint.
Tighten the new NYLSTOP nut to 7 mdaN
Reconnect the anti-roll bar link rod (wipe the ball-joint
fixing but do nor use solventl.
Tighten the new NYLSTOP nut to 4.7 mdaN
Refit the suspension cylinder pivot and pin.
Vehicles equipped with the ABS:
Fit the drive-shaft nut (with the faces and threads
lubricated).
Tighten to 37.5 mdaN.
Replace:
- the nut lock,
- the pin,
- the road wheel

TOOLS TO BE USED
1671-T
3312-T
or 6323-T
6306-T
6312-T
6602-T
Inertia extractor
Lower wheel arm ball-joint extractor
with bosses.
Lower arm ball-joint extractor
with or without bosses.
Adaptor.
Expandable element to secure the lower
wheel arm fluid blocks.
Set of three stands
REMOVING AND REFITTING
A LOWER WHEEL ARM
8531-8532

REMOVING AND REFITTING
REMOVAL
Support the front of the vehicle on stands 6602-T.
Release the pressure in the hydraulic system.
Set the height control lever to the (( low )) position.
Withdraw:
- the road wheel,
- the brake pad wear warning lamp harness holding
clips,
- the lower ball-joint nut.
Uncouple the lower ball-joint from the arm using puller
3312-T or 6323-T, Fig. I
Take off:
- the plastic trim cover,
- nut (I 1, Fig. II,
- spindle (2) with the help of inertia extractor
1671-T and adaptor 6306-T, Fig. Ill.
Mark adjustment shims (3) and (4) location, Fig. IV.
Remove the wheel arm. REFITTING
Note: the RH and LH arms are not alike.
If the wheel arm has been removed following an
impact, it will be necessary to readjust the caster
angle.
Place the expander of tool 6312-T in the wheel arm,
with screw A pointing rearwards, Fig V.
Bring tubes (5) and (6) into contact, Fig. V. In order
to do so:
Fig. VI :
- Grip the arm in a vice,
- Tighten the expandable element by means of
spanner B from tool 6312-T.

REMOVING AND REFITTING
A LOWER WHEEL ARM
Refit
Insert
Loosen
Drift out
Tighten
Reconnect
Tighten
Reinstall Fig. I
the arm together with its adjustment shims
(7 1 and (2) placed in the position they were
found on dismanting.
spindle (31, Fig. II
expander A with tool 6312-T spanner B.
the assembly via shaft (3)
the new NYLSTOP nut (4) to 14.5 mdaN,
Fig Ill.
the lower ball-joint to the arm hvipe the
ball-joint fixing but do not use solvent).
the new NYLSTOP nut to 6 mdaN.
- the brake pad wear warning lamp harness
securing clips,
- the road wheel.
Lower the vehicle to the ground
Jfc 8531-8532

REMOVlNG AND REFlTTlNG A SWIVEL
REMOVAL
Support the front of the vehicle on stands.
Depressurize the hydraulic systems.
Remove:
- the road wheel,
- the pin,
- the nut lock,
- the nut (35 mm A/F)
Lock the wheel hub with tool. 6316-T, Fig. I.
Fig. II :
- nut (1) and its washer ; disengage the bail-joint from
the swivel,
- lock nut (6),
- nut (5).
Uncouple, Fig. II and Ill :
- cable (2) from the control lever,
- spring (31,
- cup (41,
- connection (7).
Take off, Fig. Ill, nut (8) together with its washer.
Liberate flexible pipe (9) from its fixing bracket,
Fig. Ill. ABS vehicles, Fig. IV
Extract the screw (I 0) securing the sensor.
Disconnect the brake pad wear warning lamp
harness.
Withdraw:
- the brake disc cooling plate,
- the harness screw and fixing bracket; release the
harness.
Remove the lower ball-joint nut.
Uncouple the swivel lower ball-joint using extractor
3312 T or 6323 T, Fig. V,
(avoid damage to the ball-joint protection rubber).
Pull out the drive-shaft.
Take off nut (I I) from the upper ball-joint, Fig. VI.
Uncouple the upper ball-joint.
Remove the swivel.

REMOVING AND REFITTING A SWIVEL
REFITTING Replace, Fig. IV:
Wipe the ball-joint fixings and location, do not use - flexible pipe (I I) into its fixing bracket,
solvent. - washer (I 0).
Recouple the upper ball-joint with the swivel. Tighten nut (9) to 2.2 mdaN.
Refit, Fig. I: Recouple:
- washer (I),
- Fig. IV, connection (I 2) provided with a new sea/.
- nut (2).
- Fig. V, the steering ball-joint.
Tighten to 7 mdaN (New NYLSTOP nut).
Refit:
Introduce the drive-shaft end into the wheel hub - washer (I 31,
(lubricate the hub seal lips). - nut (14) (New NYLSTOP one).
Couple up the lower ball-joint. Tighten to 6 mdaN.
Tighten to 6 mdaN the new NYLSTOP nut. Reconnect:
-cup (171,
Reconnect the brake pad wear warning lamp harness. - spring (I 61,
-cable (15).
Refit, Fig. II and Ill:
Adjust the handbrake (as indicated in @ 454.011).
- electrical harness fixing bracket (4).
- earth lead (5).
- screw (3). Put the drive-shaft nut into place.
- metal panel (6). (Faces and threads lubricated).
Lock the hub, utilizing tool 6310-T Fig. VI.
ABS vehicles, Fig. Ill:
Tighten to 37.5 mdaN.
Reinstall sensor (7) (spread MOB/L TEMP No. 1
grease over the outside of the sensor.
Bleed the front brakes (see @ 453.0/l/.
Tighten screw (8) to 1 mdaN.
Fit the wheel.
Lower the vehicle to the ground.
8531-8532

REMOVING AND REFlTTlNG A FRONT
WHEEL HUB
REMOVAL
Support the front of the vehicle on stands
Take off the road wheel.
Withdraw, Fig. I
- the pin,
- the nut lock,
- the 35 mm A/F nut.
Lock the hub with tool 6310-T.
Remove the brake disc fas stated in chapter 0, op.
MA 45 1. l/3/.
Extract the swivel lower ball-joint nut
Uncouple the swivel lower ball-joint, Fig. II, using
either puller 3312-T or puller 6323-T (be careful
not to damage the ball-joint protection rubber).
Liberate the drive-shaft.
Take out, Fig. Ill :
- the screws,
- the hub. REFITTING
Introduce the wheel hub into the swivel.
Position the screws previously fitted with lugged
contact washers, Fig. Ill. Tighten to 2.7 mdaN.
Insert the drive-shaft end into the wheel hub (grease
the seal contact face).
Couple up the lower ball-joint.
Tighten the new NYSLTOP nut to 6 mdaN. (Wipe
the ball-joint fixing and recess, do not use solvent).
Refit the brake disc (Refer to @ MA 451. l/31.
Relocate, Fig. IV :
- the nut, use tool 6310-T to hold the hub in posi-
tion, tighten to 37.5 mdaN,
- the nut lock,
- the pin.
Bleed the front brakes
(See @ MA 453.0/l).
Reassemble the road wheel.
Lower the vehicle to the ground.

SPECIFICATION AND PARTICULAR FEATURES OF
THE SOURCE AND RESERVE OF PRESSURE
Reservoir:
The reservoir is located in the left hand rear section of the engine compartment. Its breather, situated on the filler
cap, is connected to a filter-capsule placed in the LH wheelarch.
Level indicator: Fig. I
A: maximum mark
B: minimum mark.
Key to reservoir diagram: Fig. I and II
1 - Overflow return from front and rear suspension cylinders.
2 - Overflow return from security valve and front rear height correctors
3 - Reservoir breather with filter in wheelarch.
4 - Hydraulic control block return pipe (ABS).
5 - Operational and overflow return pipes from compensator-brake control valve.
6 - Operational return pipe from pressure regulator and front and rear height correctors.
7 - Suction line for HP pump.
8 - Baffle deflector.
9 - Filter for overflow and operational return pipes.
10 - Fluid level indicator float.
11 - Filter on HP pump suction line.