2004 DACIA SUPERNOVA steering wheel

31
FRONT BEARING ELEMENTS
31 - 1
CHARACTERISTICS
The front axle is composed of two joint half axles with independents wheels, designed for the
suspension type Mc.Pherson.
The joints of front half axle arm are done by means of an elastic bear ing (chassis side) and
by means of a suspension ball joint (wheel side)
The transmission of the motion to the wheels is done by means of two planetary axles, not
equal, with homocinetic tripod joints.
The wheel hub is assembled in the steering knuckle by means of a preset and sealed
bearing. The brake disks are aerated.
Tigh tening moments (daNm)
Wheel attachment screw 7,5
Suspension arm shaft nuts 7,5
Attachment nut of the ball joint screw 5,5
The nut of the attachment screw of the steering
knuckle with the shock absorber 7,5
Transmissio n nut 21,0
Steering ball joint nut 4,0
The attachment anti roll bar nut 2,5
The connecting strap screw 2,7
The attachment screw of the suspension ball joint on the arm 7,5
The attachment screws of the disk on the hub 2,5
Aux.connecting rod- assembled connecting rod end stop nut 5,0
Assembled connecting rod end- rack joind body 5,0
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FRONT BEARING ELEMENTS
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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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DISMOUNTING
Lift the vehicle by means of a two col-
umns elevator.
Dismou nt :
- the wheel;
- the two attachment screws M 12 ( B)
of the brake disk assemb ly on the steering knuckle;
- the brake pads;
- the t wo sunk screws attaching t he
disk on the hub. BRAKE DISK
The brake disks can be not rectified.
A bigger wear or an important mark on the brake disk braking surfaces impose obligatory its
replacement.
- The minimal accepted thickness : 19 mm
- The maximum accepted axial deviation 0,1 mm on a diameter of F 215.
TIGHTENI NG MOMENTS (daNm)
steering nuckle 6,5
Disk attachment screw on the hub 2,5
Front wheel steering knuckle nut 21
Wheel screws 7,5
Before remounting, check:
- the wear of the flexible hose;
- the wear of the bra ke pa ds and
replace them if necessary. REMOUNTING
Remount :
- the disk on the hub by means of the two
sunk screws M8 and tighten them to the required
moment; - the brake disk assembly on the steering
knuckle, tightening the M 12 screws at t he
required moment. Press the brake pedal several times, in order
to bring the piston in contact with the brake pads.
NOTE :
In case of replacing the brake disk it is ab-
s olutely necessary to replace the brake pads.
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FRONT BEARING ELEMENTS
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SPECIAL TOOLS
Hub disk extractor PF600
Ball joint extractor PF476
DISMOUNTING
Disconnect the battery.
Lift the vehicle by means of an elevator with
two column. Dismou nt :
- the wheel
- the brake disk assembly together with
the flexible connection;.
- the transmission gear nut.
- the brake disk a ssembly by means by
means of the PF 600 extractor.
Continue by dismounting t he steering
knuckle, observing the operations sequence: - dismount the steering ball joint nut;
- depre ss the steeri ng ball joint by
means of the PF 476 extractor;
- dismount the t wo screws that attach
the steering knuckle on the shock absorber; - dismount the attachment screws that
attach the steering ball joint – steering knuckle;
- detach the steering knuckle.
TIGHTENING MOMENTS (daNm)
Wheel attachment screw 7,5
Steering ball joint nut 3,5
Transmission nut 21
Attachment fork screw on steering knuckle 6,5
The screw nut of the steering knuckle
attachment with the shock absorber leg 7,5
The attachment screw nut of the ball
joint with the steering knuckle 5,5
STEERING KNUCKLE
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REAR BEARING ELEMENTS
BRAKE DRUM
The t wo brake drums having the same di ameter; t he rectifyi ng of one of t hem obligatory
implies the same opera tion for t he other one.
SPECIAL TOOLS
DISMOUNTING
Extract the plug out of the drum using the
extracting pliers RO441.
Release the hand bra ke, loosening the sec-
ondary cables in order t o allow the hand brake
lever re turn. Pass a screwdriver through the wheel at-
tachment whole from the drum and operate
on the brake lever sector loosening the its
gearing with the hand brake lever. Dismount:
- the steering knuckle nut and washer;
- the drum using PF600 extractor.
REMOUNTING
Clean the drum and the brake plate assembly by means of a cleaner (vacuum cleaner)
for brake. Place back:
- the drum;
- the steering knuckle washer and nut tightening them at the re quired moment;
- the drum plug.
A djust:
- the shoes by applying a repeated pressure to the brake pedal;
- hand brake ( see chapter 37-“Controls”).
DENOMINATION
CODE
Plug extracting pliers RO441
Dr um extractor PF600
TIGHTENING MOMENTS (daNm)
Wheel attachment screw 7.5
Steering knuckle nut16
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REAR BEARING ELEMENTS
BRAKE SHOES
DISMOUNTING
The re placement of brake shoes must
be performed in complete set, never mount
the brake shoes equipped with brake
linings of different brands and qualities. Dismount :
- t he brake drum ( see t he corre -
sponding paragraph); - the two m aintenance springs (R)
of the shoes with a brake cylinder rod (T). By means of the pliers FR05A the brake
cylinder pistons are immobilized. Remove t he return upper spri ng of the
shoes using the pliers FR03. Release the end of t he ha nd brake cable
off the hand brake lever.
Sw ing the adjustment lever (C) up t o t he
moment it c omes into contact with the re ar
wheel steering knuckle. Distance the shoes from the plate.
S
PECIAL TOOLS
DENOMINATION CODE
Plug extracting pliers RO441
Di smounting pliers for shoes return spring FR03
Pliers for maintaining brake cylinders pistons FR05A
TIGHTENING MOMENTS (daNm)
Wheel screw 7.5
Rear wheel steeri ng knuckle nut 16
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REAR BEARING ELEMENTS
BEARING (25 x 52 x 37)CHECKING
Check by means of a comparing de vice attached on the drum , the axial cleara nce:
0 – 0.15 mm max after m ounting and tightening at the moment of 16 daNm.
DISMOUNTING
Di smount:
- the drum plug by means of the extra cting pliers RO441;
-r ear wheel steeri ng knuckle nut;
- the drum (see the corre sponding paragraph).
Di smount from the drum:
- the boring lock;
- the bearing by means of a tube F38mm.
If necessary, use the extractor CV28 A, in order to extract t he bearing inner ring, remained
on the steering knuckle. DENOMINATION
CODE
Plug extracting pliers RO441
Dr um extractor PF600
SPECIAL TOOLS
TIGHTENING MOMENTS (daNm)
Steering knuckle nut 16
Wheel attachment scre w 7.5
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