2004 DACIA SUPERNOVA wheel

33
REAR BEARING ELEMENTS
BRAKE CYLINDER
A djust:
- the shoes, by applying a repeated pressure to the brake pedal;
- the rear axle bearing clearance.
Mount the wheel.
Lower the vehicle from the elevator.
Pu rge the braking system (see chapter 38).
Adjust the hand bra ke.
REPAIRING
DISMOUNTING
Di smount the bra ke cylinder off the vehicle;
Di smount:
- the purging screw;
- the protection bellows;
- the Ö22 pistons assembled with the pressure ga skets.
Check the condition of the cylinder boring, any trace of wear, oxidation or scratches
implies the re placement of the assembled bra ke cylinder.
If the cylinder components are in a good condition, lubri cate them with brake fluid and
mount them in the reverse order of dismounting. Check the easy moving of the assembled pistons in the cylinder boring.
Mount the brake cylinder on the plate;
Mount the wheel brake drum .
Check the adjustment of t he hand bra ke.
Purge the braking system.
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33
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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33
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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35
WHEELS AND TYRES
CARACTERISTICSRIMS
The wheels identification marking is represented in two ways:
- engraved marking for steel rims
- cast marking for aluminum rims
The marking enables acknowledgment of the main wheels dimensions criteria. This marking
may be:
complete,
Example: 5
1/2 B 13 4 CH 46 ; 5 1/2 J 13 4 H2 46
or simplified,
Example: 5
1/2 B 13 ; 5 1/2 J 13 H2
The wheel bolts (studs) are situated on a diameter of 100 mm.
Maximum axial runout : 1 mm measured on the rim edge ( in G ).
Maximum radial runout : 1 mm measured on the supporting side of the tires beads.
AB C D EF
Whe els Width The rim Æ Nominal Number of Tire Offset
type (in inches) edge profile rim (in inches) wholes under staffing profile (in mm) the tire bead
5
1/2B13 5 1/2B1 34C H46
4 CH48
5
1/2J13 5 1/2J1 34H 246
4H 2
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WHEELS AND TYRES
35CARACTERISTICS
1 - 165 - Tire width in mm ( 1 )
2 - 70 - h / l height / width ratio;
4 - R - Radial structure
5 - 13 - Inner diameter in inches (Æ) ;
this is corresponding with the rim diameter
6 - 79 - Charging index
3 - T - Speed index max. 190 km/ h
Symbols speed
M ax speed
R 170
S 180
T 190
U 200
H 210
V 240
ZR more than 240
Stru cture types :
D iagonal No marking
Radial R
D iagonally belted B
TIRES
Identification marking examples: 165 / 70 R 13 79 T
165 / 70 R 13 79 T
1 2 4 5 6 3
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35
WHEELS AND TYRES
CARACTERISTICSRIMS – TIRES
The wheels screws tightening moment : 7,5 daNm.
The inflating pressure must be checked at cold.
The temperature raising during driving, leads to a pressure increase from 0.2.
to 0.3 bars. In case temperature checking is done at warm, take i nto account this pressure increase and
never deflate it. A
ir filling pressure
(barr) at cold
Vehi cle Rim T i res Front Rear
R52315 5,5 B13 165/70R13 1,9 2,0
5,5 J13 165/70R13
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WHEELS AND TYRES
35WHEELS BALANCING
BALANCING WEIGHTS
Use exclusively the weights delivered as spare parts:
- fixed by means of clamps on steel rims ( clamps included in weights)
- fixed by means of clamps (plate clamps ) for aluminum rims
A = steel balancing weights for steel rims
B = steel balancing weights for aluminum alloy rims.
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A
B
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36
STEERING ASSEMBLY
36 - 1
AXI
AL BALL JOINT
The steering mechanism is rack - and - gear drive type, unattended.
The steering mechanism is composed of: steering wheel, steering column, steering box, and
steering auxiliary connecting rods.
The diameter of the maximum turning circle: - between walls: 10m
The steering wheel number of rotations: 4.26
Of multiplication: 21:1.
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