2004 DACIA SOLENZA brakes

VA LUES AND ADJUSTMENTS
07
07 - 6
Brakes
Veh icl e
Normal
20 Minim
19 Normal
228 Minim
229 Front
0.04 Rear
-
Brake disk width and drums diameter (mm) Front Rear Maxi
m disk
axia l run out
Veh icl e
Normal
14 Minim
7 Normal
5 Minim
0.5 mm
above the
rivets SAE J 1703
DOT 4
Gaskets thickness (mm)
Front Rear Bra ke fluid
SOLENZ A
SOLENZ A
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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 - 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 - 13
30Brake fluid
PERIODIC CHANGE OF THE BREAK FLUID
The m anufacturing conception of t he brakes equipping t he Dacia vehicles especially the
ventilated disk brake, enable the maximum diminishing of the fluid vaporization, even in case of
intensive using of brakes (mountain area), due to good disk cooling.
The brake fluids, suffer in all cases a slight degradations during the use, by a slight humidity
absorption, that makes necessary the complete replacement after a period of time or after some
driving (4 years or 60,000 driven km)
COMPLETION OF THE BRAKE FLUID LEVEL
The wear of brakes pads and shoes, leads to a gradually diminution of brake fluid level in its
reservoir. It is useless to compensate this diminution, because the level will be restored when changing
the brake pads and shoes.
Obviously , in the meantime, the level of brake fluid in reservoir must not go down bellow the
MINI mark.
HOMOLOGATED BRAKE FLUIDS
The mixture in t he braking circuit of two non different brake fluids may leads to important
risks mainly due to gasket damage, incompatible with new fluid.
In order t o a void such risks, it is obligatory to use only bra ke fl uid re commended by the
producer, i.e. : SAEJ 1703, DOT 4.
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