steering DACIA SOLENZA 2004 Owner's Guide

TRANSM ISSION
29
29 - 10
Bellows to wheel
Catch the steering knuc kle c asing in a vice
with soft jaws. Put the spring and head in the tripod groove.
Brings the clogs to the center.
Position the retaining star ( S), and each of its
arms, being at the bisecting lines of the a ngles
formed by the tripod arms.
Introduce the transmission shaft in the steering
knuckle casing, positioning it, subject to the
marks (the t hree c logs penetra ting in the t hree
rolling routes of the shaft). Slide slowly the t ransmission shaft, in order
to engage one arm of the retaining star in the
marked point of the transmission shaft, and press
it for correct centering.
Placing the other retaining star t wo arms, it
will be made easy by a screwdriver, with its end
modified as per drawing:
A = 5 mm B = 3 mm
Ensure that retaining star arms are correctly
positioned in the shaft marks.
Check by hand, the joint operation.
Must not exist any hard point.
Di stribute in the bellows and in the steering
knuckle casing the grease prescribed dosage.
NOTE It is obligatory to observe the quantity
and type of the prescribed grease, 2 l
+1 cl,
ELF CARDREXA RNT 2.
Left
transmi ssion
S
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TRANSM ISSION
29
29 - 11
Bellows to wheel
Position the two bellows beads in the grooves of the steering knuckle casing, consequently on
the transmission shaft tube.
P lace a non-cutting, round headed rod between the transmission shaft and the bellows in
order to dose the amount of air inside. Mount the two collars, by means of the two rods used also at the dismounting operation.
Left
transmi ssion
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TRANSM ISSION
29
29 - 15
Bellows to wheel
JOINT TOWARDS THE WHEEL – GE
1. Steering knuckle casing assembled
2. Retaining star.
3. Tripod to wheel
4. Tulip shaft
5. Maintainin g collars
6. Protection rubber bellows
DISMOUNTIN G
Dismount the two m aintaining collars using two rod s locally produced (see the method
previously described for dismounting the joint GE, left transmission) .
Cut and remove the damaged bellows.
T ake out maximum of grease.
In order to replace the joint GE protection bellows, it is necessary to dismount/remount the
GI joint parts (see the method previously described).
R EMOU NT I NG
Grease the rod of transmiss ion shaft with grease.
Introduce the protection bellows of the GE joint.
Distribute the prescribed dosage of grease for GE joint.
Position the bellows beads in the grooves of the steering knuckle casing, consequently on the
transmission shaft tube and mount the collars (see the method described at mounting GE joint
bellows, left transmission) .
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GENERAL
30 - 11
30Braking system diagnostic
II. CONSTANT EFFECT AT BEHAVIOUR
EFFECTS
Brakes not accomplishing the required
b raking distance
Vibrating brakes
When braking, the vehicle ( front part)
is left/right deviating
Braking
Heating brakes POSSIBLE CAUSES
- Non-uniform worn brake linings (backing
off);
- Brake l inings slightly gr eased;
- Springs with modified characteristics.
- Brake disks with high wobbling;
- Inconstancy brake disks width;
- Particles abnormal deposit on brake disks
(oxidation between linings and disk).
- Front axle suspension, steering (to be
checked);
- Stuck piston;
- Tires – wear, inflation pressure;
- R igid duct narrowed (flattening).
- Stuck piston;
Automatic adjustment : hand brake cable very
tighten.
REMARK :
Automatic recovering is performed by
means of the brake pedal, if there is no ab-
no rm al t ensi on in the hand brake cable
when released (hand brake released).
- Return spring.
- Insufficient hydraulic stroke of the brake
pump, not allowing the return at rest of the
brake pump pistons ( brake pump remaining
under pressure);
- St uck pistons or hardly returning;
- R igid duct narrowed (flattening);
- Def ective adjustment of the hand brake
control.
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GENERAL
30 - 16
30
The influence of angles
The influence of different angles over the road behavior, stability and abnormal wear preventing
of the vehicles tires.
CAMBER
The exit from the tolerance field of the left or right wheel camber, may have as result:
- tires external or internal edge wear (excessive positive or negative camber);
- steerin g is deviating towards the camber angle is more pronounced (asymmetry ), a deviation
from the trajectory is taking place, which must be corrected by means of the steering wheel (the
pronounced wear on the tire in question is occurring);
CASTER
A larger difference of 1° between the right side caster and left side, may have as result:
- a deviation from the trajectory, which must be corrected by means of the steering wheel, the
abnormal tires wear (the pronounced wear on the tire in question is occurring), tough steering,
instability when turning.
PA R ALLELISM
This adjustment has little importance over the vehicle road behavior.
Anyhow, note the followings:
-a prominent closing may lead to tires external edges wear.
-a prominent opening may lead to tires interior edges wear.
DIMENSIONS UNDER CARRIAGE BODY
These are especially influencing the different angles of the steering geometry.
A vehicle, which has run a large amount of km, it will have under the carriage body, dimension s
smaller than a new vehicle. This is the reason why some vehicle manufacturers, are prescribing, when the checking is
done with empty vehicle, different under carriage body dimensions and their respective places
where these values must be taken. Other vehicle manufacturers are recommending the suspension
compression by means of special (specific) tools or loading repartition in different places.
These different procedures (as performing ways) have as final purpose, the cancellation of the
vehicle suspension lowering, which has driven an important number of Km, compared with its
initial condition.
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GENERAL
30 - 17
30Angles checking principle
PRELIMINARY CHECKING
Before starting the steering angles checking, it will be necessary to check the following points
and exclude the possible non-conformities.
1. Tires and rims checking, regarding: - type and dimension;
- inflating pressure;
- wear de gree.
2. Joints : - elastic bearings and bushings condition;
- ball joints clearance;
- bearing clearance;
- steering wheel column clearance.
3. Tires runout and axial runout (compensation is to be performed by means of the reading
instruments);
4. Dimensions symmetry under carriage body (suspension condition).
5. Manufacturer’s method : each vehicle manufactu rer is prescribing the checking conditions,
loading repartition on axles, under carriage body dimensions presentation.
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GENERAL
30 - 20
30
Three situations may appear:
1. CORRECT I NCORRE CTPerform the same rotations number of the tie rod
connecting rod on left side and on the right side until
obtaining the same value ”A”.
2. INCORRECTCORRECTAdjust the parallelism at the same value for left and
right side ensuring the same value “A” on both sides.
3. INCORRECTINCORRE CTPerform first the repartition in order to balance the
value “A” on each side, than adjust the parallelism
(see Case 2}.
NR. PARALLELISM REPARTITION CORRECTION WH ICH MUST PERFORMED
CRT.
PARALLELISM ADJUSTMENT
Loosen the lock nut (1) maintaining the tie
rod of steeri ng connecting rod (2) in a fi xed
position.
Act upon the tie rod of steering connecting
rod taking into account its rotation sense, in
order to obtain the convergence or divergence
and also the fact that one of its complete rotation
leads to an axial displacement of 1.5 mm.
After obtaining the correct parallelism, tighten
the lock nut to the required moment of 5 daNm.
2
1
F ront axles checking and adjustment
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FRONT AX LES ELEMENTS
31
31 - 1
Chara cteristics
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 bearing (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 a xles, not
equal, with homocinetic tripod joints.
The wheel hub is assembled in the steering knuckle by means of a sealed bearing.
The brake disks a re ventilated.
TIGHTENING MOMENTS (daNm)
Wheel attachment screw 7.5
Suspension arm shaft nuts 10.5
Attachment nut of the ball joint screw 6.2
The nut of the attachment screw of the steering knuckle with the shock absorber 10.5
Transmissio n nut 28.0
Steering ball joint nut 4.0
Attachment anti roll bar screws 4.0
Connecting strap screws 2.7
Attachment screws of the suspension ball joint on the arm 7…..7.5
Attachment screws of the disk on the hub 1.4
Aux.connecting rod- assembled connecting rod end stop nut 5.0
Assembled connecting rod end- rack joint body 5.0
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FRONT AX LES ELEMENTS
31
31 - 2
TIGHTENING MOMENTS (daNm)
Wheels attachment screws 7.5
Suspension arm shaft nuts 10.5
A ttachment nut of the ball joint screw 6.2
An ti – roll bar bearings screws 4.0
Ball joint attachment screws nuts on the arm 7….7.5
St raps attachment screws 2.7
Suspension arm
REMARK :
T he dismounting-remounting operations are identical for both half axles (specifying
that on the right side one strap is provided and on the left side two straps are provided).

DISMOUNTING
Disconnect the battery.
Loosen the front wheels attachment screws.
Lift the vehicle on an elevator with two columns.
Dismount the two wheels.
Dismount the anti roll bar attachment screws (1) on the suspension arms.
Detach the anti roll bar.
Dismou nt :
- the suspension upper ball joint screw (2) and nut on the steering knuckle;
- the upper attachment strap screw on the right/left wing lining;
- the nuts (3) and the arm a ttachment axles on the power train a nd the strap (straps);
- the arms.
12
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FRONT AX LES ELEMENTS
31
31 - 3
Suspension arm
REMOU NT I NG
REMARK :
Ensure the presence of t he protection pl ate (A) on the suspension ball joint axle.
Perform the operations in the following sequence:
− Arm attachment on the power train support without tightening to the required moment
the axles nuts (3) .
− Ball joint mounting in the steering knuckle
− Attachment of the ball joint screw and tightening its nut to the required moment ;
M ount the wheels, tighten the screws to the required moment, and then with the vehicle on
wheels, continue with:
– Remounting the anti roll bar by tightening to the required moment the attachment screws.
– Tightening the shaft a rm nuts a nd fixing the strap (straps) – (4) to the upper pa rt, by
tightening the screws to the required moment.
REMARK :
When remounting the attachment buffers on the anti roll bar, put inside them 1 g of
grease type MOYKOTE 33 MEDIUM.
When remounting the suspension arm axles, use new self-locking nuts.
3A
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