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FRONT AX LES ELEMENTS
31
31 - 14
Steering knuckle
REMOU NT I NG
REMARK :
Before remounting check t he wear of the be aring, that shall be replaced if t he grease
is flown.
Position and press the steering knuckle together with the hub – disk assembly, performing the
operations in the reverse order, after previously having greased the steering knuckle grooves.
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FRONT AX LES ELEMENTS
31
31 - 15
Steering knuckle bearing (35 x 65 x 35)
DISMOUNTIN G
Dismount the steering knuckle (see method
“Dismoun ting steering knuckle).
Remove the safety ring ( bore ring) from the
interior of the steering knuckle.
De pre ss t he biconi cal be a ring, usi ng a
→ 50 mm outer diameter rod.
P lace t he steeri ng rod using a bushing with
inner diameter → 67 mm.
R EMOU NT I NG
Introduce in the steering knuckle the bearing
support washer
Press the bearing in the steering knuckle, by
means of a → 63 mm diameter bushing.
Mount the safety ring in the channel of t he
steering knuckle bore.
REMARK:
The operation shall be performed so that
bushing is not pressed on the bearing
support washer, in order to perform a correct
mounting and not to damage the bearing. The steering knuckle-bearing assembly
is
to be placed above the hub and after centering
the support washer, press the bearing on the
hub, using a bushing with the inner diameter
of Ø 36 mm and an e xteri or diameter of Ø
40 mm. Continue with the mounting of the steering
knuckle assembly on t he vehicle (see the
method “ Remounting steering knuckle ”)
REMARK :
When replacing the bearing, its spacer
is also t o be obligatory replaced.
ΦΦ ΦΦ
50
ΦΦΦΦ
67
ΦΦΦΦ
64
Φ 40
A
ΦΦΦΦ
40
ΦΦΦΦ
36
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FRONT AX LES ELEMENTS
31
31 - 16
CROSS SECTION
F
ront suspension
6 daNm
2 daNm
10.5 daNm 2.7 daN m
4 daNm
10.5 daNm 7....7.5 daNm 28 daNm
7.5 daN
m
51.4
6.2
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FRONT AX LES ELEMENTS
31
31 - 17
Shock absorber, Spring
TIGHTENING MOMENTS (d aNm)
Shock absorber rod nut 6
Shock absorber lower attachment nut 10.5
Shock absorber upper attachment screws 2
The shock absorbers are stored in horizontal
position. In these conditions, it is possible that
s hock absorbe rs working vert ically, to get
depressed.
Therefore, before mounting on the vehicle, it
is necessary to perform the shock absorbers
pressing, by alternatively shifting the shock
absorber rod (upwards a nd downwards), the
shock absorber being in vertical position. S
HOCK ABSORBER
1. Upper attachment nut
2. Lower attachment screw
3. Filtering block
4. Upper plate
5. Shock buffer
6. Lower plate
7. Axial bearing
The coil diameter of the front axle spring is Ø 13,1+ 0,0 8 mm.
REMARK :
Make sure that springs of every axle have the same characteristics.- 0
3
4
5
6
7
2 1
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FRONT AX LES ELEMENTS
31
31 - 18
Spring – shock absorber assembly
DISMOUNTING SPRING-SHO CK ABSORBER ASSEMBLY OF F THE VEHICLE
Loosen the front wheel attachment screws.
Lift the vehicle by means of a two-column
elevator. Dismo unt :
- the wheel;
-t he st eeri ng knuc kle attachment
screws (1) to the shock a bsorber leg;
- the two upper attachment screws (2 )
of the shock absorber on the carriage body.
Take out the spring – shock a bsorber
assembly, by pressing on the l ower arm, in
order to avoid the shock absorber getting in
contact with the transmission bellows.
SPRING DETACHMENT FROM SHOCK ABSORBER
Place t he shoc k absorbe r on t he shoc k
absorber support (4), of the base plate (3 ) of
the SU S 600 device.
Place the compression plate (7) on the filtering
block and position the rods grips (8) on the spring
lower last but one coil. Com p re ss t he sp ri ng by a l t e rna t i ve l y
tightening the nuts (9) till release it from the lower
plate of t he shock absorber.
Dismount the upper attachment nut of the
s hock absorbe r by means of the SUS 601
combined wrench.
Take out the spring
Place the spring on the SUS 600 device shaft
(2).
Place on the shaft the lock bushing (6), the spacer (5), and tighten the crank ( 1) to the
required moment till the lock bushing (6) comes into contact with the filtering block of the shock
absorber. Loosen alternatively t he nuts (9) and take out the plate (7) and the rods grips (8).
Release the spring by means of the crank (1) and detach from the shaft (2), the filtering block
of the shock absorber, the upper plate, a nd the spring.
1 2
SSPECIAL TOOLS
Devi
ce SUS 600
Combined wrench SUS 601
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FRONT AX LES ELEMENTS
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31 - 19
Spring – shock absorber assembly
SP RING-SHOCK ABSORBER ASSEMBLY REMOUNTING ON THE VEHICLE
P lace the spring on the SUS 600 device shaft (2).
Position on the spring the upper plate and the filtering block of the shock absorber.
P ut on the shaft the lock bushing (6) and the spacer (5).
Compress the spring by means of the crank (1).
P lace the c ompression plate (7 ) on the filteri ng block and position the rods grips (8) on the
spring last but one coil. Tighten the nuts (9) till the rods grips (2) came in contact with the spring coil.
D etach the crank (1) and remove the compressed spring from the shaft (2).
P lace the shock absorber in the support (4).
P lace on the shock absorber the axial bearing, the lower plate, the buffer, and the spring.
M ount the upper attachment nut of the shock absorber by means of the SUS 601 combined
wrench and tighten to the required moment. Loosen the nuts (9) and take out the plate (7) with the rods grips (8).
Mount the spring-shock absorber assembly on the vehicle, in the reverse order of dismounting.
2
6
1
3
5
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FRONT AX LES ELEMENTS
31
31 - 20
Anti roll bar
DISMOUNTIN G
Lift the vehicle by means of a two-column elevator.
Unscrew :
-the clamps attachment screws of the power train support and remove the a ttachment
buf fers;
-the clamps attachment screws on arm and remove the supporting bushings.
Dismount the anti-roll bar.
Check the state of the attachment buffers and of the supporting bushings.
Replace the items showing damages.
REMOU NT I NG
Mount the supporting bushings and the attachment bushings on the anti-roll bar.
M ount the anti-roll bar assembled both on arms as well as on the power train support.
Lower the vehicle with the wheels on the ground.
Tighten to the required moment, the screws of supporting bushings attachment clamps on the
power train support as well as the screws of bar attachment clamps on the suspension arms.
TIGHTENING MOMENTS (d aNm)
Clamp screws for attaching the elastic
bushings on longitudinal girder 4
Clamps screws for attaching bushings
on arm 4
BARÃ ANTIRULIU FAÃ
Diametrul (mm)
ΦΦΦΦ
24
1
A
1
2 4
3
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FRONT AX LES ELEMENTS
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31 - 21
Power train support
TIGHTENING MOMENTS (daNm)
Wheels attachment screws 7.5
Shock absorber lower attachment screws
to the steering knuckle arm 10.5
C onnecting straps upper attachment screws 2.7
Anti-roll connection rod attachment screws
to the steering crossbar support 6.2
Con nection screw of the steering column
lower shaft-steering box gear 2.1
AT T E N T I O N !
Di smounting of the front axles screws
and nuts implies their obligatory
r eplacement and tightening to the required
moments.
DISMOUNTIN G
Disconnect the battery.
Dismount :
- connection screw of the steering column
lower shaft-steering box gear;
-therm al sc reen att achment nut s on
exhaust manifold and remove the thermal screen;
- attachment studs descending pipe –
exhaust manifold. Loosen the front wheels scr ews.
Lift the vehicle by means of a two-column
elevator. Dismount
the engine shield.
Dr ain oil from power-assisted steeri ng
circuit ( see chapter 05). Drain oil from gearbox ( see chapter 05).
Dismo unt :
- front bumper 9 see chapter 55);
- left/right front wheels fairi ng ( see
chapter 56); -connecting straps upper attachments
power train support – carriage body; -uppe r a t t achm ents of the shoc k
absorption connecting straps (connecting
str aps of suspension arms shaft s-carriage
body); -brake calipers off t he for k a nd
suspend the calipers; -connection clip of descending pipe-
e xpansion chamber and remove the
descending pipe.
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