wheel DACIA SOLENZA 2004 Service Manual

TRANSM ISSION
29
29 - 6
Bellows - Bearing assembly
to the gearbox
Maintaining the transmission on the press, on both sides, shall be ensured on the G groove
made on shaft, by means of a device t ype FACOM U 53 G, ( the flat side towards bellows) in
order to avoid the deflector damages on the wheel side. The pressing effort of the bearing on the transmission shaft ahas the value of = 100 – 700
daN. Press again the assembled tripod on the transmission shaft observing the marks made when
depressing. The press effort of the tripod assembly on the grooved area of the shaft end, shall be between
60 – 600 daN. Remount the blocking ring (Zeger lock) in the groove made on the transmiss ion shaft.
Left
transmi ssion
G
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TRANSM ISSION
29
29 - 7
Bellows to wheel
JOINT TOWARDS WHEEL
1. Steering knuckle casing ass.
2. Retainer star
3. Tripod to the wheel
4. Tulip shaft
5. Maintai ning collars
6. Rubber protection bellow SPECIAL TOOLS
GE 86 joint bellows replacement device PF 537-04
DISMOUNTIN G
Dismount the two maintaining collars off
the bellows by means of two rods, locally
manufactured (see the drawing)
Cut and remove the damaged bellows.
Remove as much grease as possible.
Mark one of the groove routes of the shaft
subject to its working corresponding clog by
marking w ith a centre punch on casing outer
conse quently on the shaft.
Detach th e connection be twe en the
transmission shaft and the steering knuckle
casing, lift ing one by one the arms of the
reta ining star from the three stamps performed
on the petals of the shaft tulip.
WHEN DISMOUN TIN G, DO N OT
DEFORM THE ARMS OF THE RETAINING
STAR
Retrieve the head and the spring from the
tripod to wheel.
Left
transmi ssion
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TRANSM ISSION
29
29 - 8
Bellows to wheel
REMOUNTING
The mounting of the new bellows is to be
performed by means of the PF 573 – 04 device.
Catch the inclined transmission in a vice with
soft jaws in order to avoid the shaft damaging.
Engage the PF 537 – 04 device over the tulip
of the transmission shaft.
O bturate the small e xtremity of the bellows
and, abundantly grease with automatic
transmission oil or ELF CARDREXA RNT 2
grease: - the all outer surface of the PF 537 – 04
device, - the inner part of the bellows, especially its
smaller diameter part (this operation is performed
for slipping help).
Left
transmi ssion
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TRANSM ISSION
29
29 - 9
Bellows to wheel
Introduce the smaller di ameter of the
bellows on the PF 537 – 04 device.
Cover a hand with clean gauze and place
it on t he bellows in such a way as to stretch
the first fold.
T ake support with the hip on the e dge of
the vice (lateral side). Place the ot her hand around the first one
and strongly pull it, taking care that first fold
is not huddled together. Bring the bellows as close as possible to
the device cylindrical part and let it release till
half stroke.
It is recommended to perform many times
this operation (maximum 5 times).
When e asy slipping i s noticed, make so
that bellows is passing ove r the de vice
cylindrical part, the operation being
performed without stopping.
Left
transmi ssion
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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 - 1
30
GENERAL PRIN CI PLE SCHEDULE OF B RAKE CIRC UIT I N PARALLEL,
WITH BY – PASS CIRCUIT
BRAKING IN PARALLEL, WITH BRAKE LIMITER
General principle schedule of the brake circuit
DACIA SOLENZA vehicles, are equipped with hydraulic braking system, brake pump with
by-pass double circuit, braking booster, brake limiter in order to avoid the rear wheels blocking
Fr ont brakes are disc type and rear brakes are hub type.
Brake discs are ventilated.
Front brake circuit
Rear brake circuit
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GENERAL
30 - 6
30Composition and dimensions of the main
braking system elements
Front brakes
- brake caliper bore diameter → 54 mm
- brake disk diameter → 235 mm
- disk axial runout measured at → 215 0. 04 mm
- brake disk maximal thickness 20 mm
- brake disk minimal thickness 19 mm
- braking pad thickness (support included) 14 mm
- brake pad minimal thickness (support included) 7 mm
Rear brakes
- wheel braking cylinder bore diameter → 22 mm
- new drum diameter → 228 mm
- drum diameter after grinding → 229 mm
- braking shoes lining width 40 mm
- braking shoes lining thickness 5 mm
- minimal accepted braking lining height above rivets 0.5 mm
Master cylinder
- diameter of bore 20.6 mm
Brake fluid reservoir without alarm sensor
Pressure limiter for circuit in parallel
S ervobrake master vac 7" 177.8 mm
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GENERAL
30 - 14
30Braking system purging
The air existence in the hydraulic circuit may be noticed by an elastic displacement of the brake
pedal, sometimes even, close to the floor. This fact is more evident with the engine running.
GENERAL RE COM M E NDATIONS
· Always use for completion or total changing the brake fluid SAE J 1703 , DOT 4.
· In case of changing the brake fluid it is necessary to wash the system with industrial alcohol.
· During the purging, the brake fluid from the reservoir must not go down bellow the MINIM
level marked on the reservoir.
To perform the purging, one person will stay on the driver place, to press the brake pedal and
the other one will perform t he purging at purging points, using a 500 ml vessel, a tra nsparent
plastic tube and brake fluid for completion.
REMARK:
The brake fluid obtaine4d during performing the purging operation IS NOT TO BE
REUSED, but after 48 hours, to avoid air bubbles introduction in the hydraulic circuit.
PR OCED UR E
Place on the purging screw, a transparent tube with its end in a vessel with brake fluid a nd
proceed as follows : - press the brake pedal slowly;
- dismount the bleeding screw, maintaining the full stroke of the pedal;
- tighten the bleeding screw;
- slowly release the brake pedal.
Repeat the same procedure until complete cease of bubbles.
Pr oceed in the same way also for the other purging places.
T ake into consideration the existence all the time of the brake fluid in the reservoir.
OBSERVATION : Before beginning the purging procedure, dismount the I.C.P. contact
from the brake pump that it will be remounted at the end of the operation, brake pedal released.
It is important to observe the following sequence of the purging points:
1.Main brake cylinder;
2. Left rear wheel brake cylinder;
3. Right rear wheel brake cylinder ;
4. Caliper of front right wheel ;
5. Caliper of front left wheel;
6. By-pass circuit through main cylinder purge.
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