suspension DACIA SUPERNOVA 2004 User Guide

31
FRONT BEARING ELEMENTS
31 - 2
Tightening moments (daNm)
Wheels attachment screws 7,5
Suspension arm shaft nuts 7,5
Attachment nut of the ball joint screw 5,5
Anti – roll bar bearings nuts 2,5
Ball joint attachment screws nuts on the arm 7,5
Str ap screw 2,7
SUSPENSION ARM
NOTE
The dismounting-remounting operations are identical for both half axles. DISMOUNTING
Lift the vehicle on an elevator with two columns.
Dismount the two wheels.
Loosen the attachment nuts (1) of the anti roll bar on the suspension arms.
Detach downward the anti roll bar.
Dismou nt :
- the suspension upper ball joint screw (2) and nut on the steering knuckle;
- the stra p screw ;
- the nuts (3) and the arm attachment axles on the frame ;
- the arm s.
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FRONT BEARING ELEMENTS
31 - 3
SUSPEN
SION ARM
RE MOUNTING
NOTE :
Ensure the presence of t he protection pl ate (A) on the suspension ball joint axle.
Perform the operations in following sequence:
- position the arm to the chassis without tightening the axles nuts (3) .
- mount the ball joint in the steering knuckle
- fix the attachment screw a nd tighten its nut at the required moment ;
Mount the wheel the with the vehicle on wheels continue with:
- remounting the anti roll bar by tightening at the required moment the attachmen t screws.
- tightening of the shaft arm nuts and fixing the strap to the upper part..
The tightening to t he re quired moment of the elastic bushings of the suspension arms is
performed observing the value H1 – H2 = 80 mm.
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FRONT BEARING ELEMENTS
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ELASTIC BUSHINGS OF THE SUSPENSION ARM
SPECIAL TOOLS
P.F. 601 Mounting bushings device
P.F. 602
Bushi ng extractor
REPLACEMENT
This operation implies bushings replacement one by one, in order to maintain their centering
as to the arm shaft.
Dismount one of the bushings, by means of the TF 602 device, using a 31-mm outside diam-
eter rod.
Mount the new bushing, observing the value A =239 +/- 0,5 mm.
Dismount the other bushing, proceeding in the same shown way, in order to maintain the value
A = .239 +/- 0,5 mm
Mounting of the elastic bushings is performed by means of the device TF 601.
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FRONT BEARING ELEMENTS
31 - 5
SU
SPENSION BALL JOINT
DISMOUNTING
Perform the same operations like dismounting the suspension arm.
Unscrew the two attachment nuts (3) of the arm shafts, without dismounting them.
DISMOUNT : - the two ball joint attachment screws (4) on the arm;
- the ball joint.
REMOUNTING
NOTE :
Ensure the presence of the protection pl ate (A) on the suspension ball joint axle.
Mount the suspension ba ll joint on the arm , by means of t he t wo attachment screws and
tighten their nuts at the required moment.
Perform then, the same operations as for suspension arm remounting.
BELLOWS REPLACEMENT
Dismount the damaged bellows.
Clean the ball joint in the area covered by the
bellows ( ball j oint body and pin)
Fill the new bellows with a pproximate 3 g
MO S2 special grease
Mount the new bellows on the ball joint
Place on the bellows by means of a resistant
thread, the fixing clip (B), then the fixing clip A
(F = 19).
4
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31
FRONT BEARING ELEMENTS
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Helical spr
ings, hydraulic shock absorber with double effect and anti-roll bar.FRONT SUSPENSION
6 daNm
2 daNm
7,5 daNm 2,7 daN m
3,5 daNm
7,5 daNm 7,5 daN
m 21 daNm
7,5 daN
m
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MECHAN ICAL ELEMENTS CONTROL
37BRAKE FLEXIBLE HOSES
The SUPER NOVA vehicles are equipped with flexible hoses with copper gaskets in order
to ensure the sealing.
PRECAUTIONS IMPOSED TO BE RESPECTED WHENDIS MOUNTING – REMOUNTING A RECEIVER
OR A BRAKE FLEXIBLE HOSE
D ue to security reasons, in order to avoid brake flexible hose twisting and the risk to get i n
contact with the suspension elements, it is necessary to observe the following operations sequence.
37 - 14
TIGHTENING MOMENTS (daNm)
X (caliper flexible) 2,0
Y (the attachment connection screw of the rigid pipe on the flexible) 1,5
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MECHAN ICAL ELEMENTS CONTROL
37
BRAKE FLEXIBLE HOSES
DISMOUNTING
U nscrew the connection ( 1) (wrench) of the rigid pipe on the flexible hose till the moment
when the spring (3) is relaxed, having releasing the splinted area (4) of the sustaining bed.
Unscrew the flexible from the caliper and eventually dismount the caliper.
REMOUNTING
Assemble t he caliper with the caliper fork, mount the wedges and then screw the flexible i n
the caliper, then tighten at the m oment of 2 daNm.
The flexible must be mounted when the half axle is in the position: - symmetric wheels (mounted suspension)
- train in line (straight wheels)
Position the female end of the flexible on the sustaining bed ( 5) without twisting forcing and
check if the splinted area ( 4 ) is freely coupling in the bed splints, then place back the spring (3)
and screwing the rigid pipe on the flexible avoiding twisting.
Tighten the connection screw at a moment of 1,5 daNm.
Purge the brake circuit.
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