Renault Scenic 3 Chassis. Manual — part 8
31A
-
8
FRONT AXLE ASSEMBLIES
Hub carrier
31A
REMOVAL
Mount the vehicle on a two post lift.
Disconnect the battery, starting with the negative ter-
minal.
Remove the front wheel.
Unclip:
- the wheel speed sensor from the hub carrier,
- the discharge bulb sensor (if fitted on vehicle).
Remove the front brake calliper support bolts (1).
Special tooling required
Rou. 604-01
Hub locking tool
Tav. 476
Ball joint extractor
Equipment required
Diagnostic tool
Tightening torques
m
shock absorber lower
mounting bolt
10.5 daNm
lower ball joint nut
6.2 daNm
track rod end nut
3.7 daNm
brake disc mounting
bolts
1.5 daNm
hub nut
28 daNm
brake calliper support
mounting bolts
10.5 daNm
wheel bolts
13 daNm
101215
1
2
3
4
31A
-
9
FRONT AXLE ASSEMBLIES
Hub carrier
31A
Hang the « calliper - front brake calliper support »
assembly on the suspension spring.
Remove:
- the hub nut (6) using tool (Rou. 604-01),
- the two disc mounting bolts (5),
- the disc,
- the track rod end nut (2),
- the lower ball joint nut (3),
- the anti-roll bar tie rod upper mounting nut (7),
- the anti-roll bar tie rod,
- the shock absorber lower mounting bolt (4).
Extract the ball joints using tool (Tav. 476).
Remove the front driveshaft stub axle carrier by tur-
ning it towards the vehicle interior.
REFITTING
Proceed in the reverse order to removal.
Torque tighten:
- the shock absorber lower mounting bolt (10.5
daNm),
- the lower ball joint nut (6.2 daNm),
- the track rod end nut (3.7 daNm),
- the brake disc mounting bolts (1.5 daNm),
- the hub nut (28 daNm),
- the brake calliper support mounting bolts (10.5
daNm),
- the wheel bolts (13 daNm).
101212
IMPORTANT
Take care to avoid injury from the base of the
shock absorber when it comes out of the stub
axle carrier.
6
5
7
Note:
The calliper support bolts must be coated with a
product such as FRENBLOC before being refit-
ted.
IMPORTANT
Depress the brake pedal several times to bring
the pistons, the brake pads and brake discs into
contact.
WARNING
Connect the battery, starting with the positive ter-
minal; carry out the necessary programming
(Section Electrical equipment).
WARNING
Adjust the axle assemblies ( General Vehicle
InformationSection).
Program the torque and angle sensor using the
Diagnostic tool (see fault finding manual).
Note:
Be sure to initialise the discharge bulb system (if
fitted on vehicle;Section Electrical equipment).
31A
-
10
FRONT AXLE ASSEMBLIES
Hub-carrier bearing
31A
The following tools are required for this procedure:
- tool (Rou. 15-01),
- tool (Rou. 604-01),
- tool (Tav. 476),
- tool (Tav. 1050-02).
REMOVAL
Remove the stub axle carrier (Section Front axle as-
semblies, Hub carrier, page 31A-8).
Remove:
- the hub using a press, gripping with a 41 mm dia-
meter tube,
- the circlip.
Remove the bearing, gripping the internal bush with
a tube of diameter 46 mm.
Special tooling required
Rou. 15-01
16 mm interior diame-
ter shaft protector
Rou. 604-01
Hub locking tool
Tav. 476
Ball joint extractor
Tav. 1050-02
Tool for pushing calli-
per pistons back
Tightening torques
m
lower ball joint bolt
6.2 daNm
track rod end nut
3.7 daNm
driveshaft nut
28 daNm
shock absorber base
bolt
10.5 daNm
disc mounting bolt
1.5 daNm
calliper suppor t bolt
10.5 daNm
wheel bolt
13 daNm
20786
20787
31A
-
11
FRONT AXLE ASSEMBLIES
Hub-carrier bearing
31A
REFITTING
Refit the sensor holder.
Position the sensor holder at (x) = 35˚
±
±
±
±
5˚ from ver-
tical. This position corresponds to the centre of the
housing.
Grip the external bush with a tube of external diame-
ter 77 mm and bore diameter 70 mm.
WARNING
Do not move the vehicle without its driveshafts
torque tightened on the hub, as to do so could
destroy the wheel bearings and damage the ABS
target.
WARNING
Take care not to mark the wheel speed sensor
target on the active sensor bearing when refitting.
WARNING
- Be sure to check the condition of the hub sur-
face and the hub carrier bore before refitting the
bearing. Replace the hub carrier if it is defective.
Clean:
- the inner and outer surfaces of the new bearing
in contact with the stub axle carrier and the hub,
- the stub axle carrier surfaces in contact with the
new bearing,
- the hub surfaces in contact with the new bea-
ring.
WARNING
Do not grip the inner bearing bush, to avoid
damaging the bearing (significant force is requi-
red for fitting).
101934
20788
x
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