2009 RENAULT TWINGO parking brake

33A-14
REAR AXLE COMPONENTS
Rear brake lining: Removal - Refitting
33A
Replace all the brake pads on one axle at the same
time. Never mix brake pads of different brands or qual-
ities.
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
aRelease the parking brake.
aRemove:
-the rear wheels (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) ,
-the rear brake drums (see 33A, Rear axle compo-
nents, Rear brake drum: Removal - Refitting,
page 33A-19) .
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove the lower return spring (1) , then the upper
return spring (2) using brake shoe pliers.aFit pliers (3) onto the slave cylinder pistons.
aRemove:
-the side retainer springs (4) of the segments, keep-
ing the connecting rod (5) in contact with the brake
backing plate (6) ,
-the leading shoe (7) ,
-the link rod (8) ,
-the trailing shoe (9) .
aUncouple the parking brake cable from the parking
brake lever.
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33A-15
REAR AXLE COMPONENTS
Rear brake lining: Removal - Refitting
33A
aRemove the leading shoe:
-the spring (10) ,
-the adjustment lever (11) .
REFITTING
I - REFITTING PREPARATIONS OPERATION
aRemove any dust from the drums and the flanges
using the cleaning station.
aLightly grease the support linkage thread.
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit the leading shoe:
-the adjustment lever,
-the spring.
aConnect the parking brake cable to the parking
brake lever.
aRefit:
-the trailing shoe.
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Note:
The brake mechanism components are different
on the left and r ight-hand sides, so it is important
not to confuse them.
Note:
On the left-hand brake: the bolt thread has a
right-hand thread.
On the right-hand brake: the bolt has a left-hand
thread.

33A-16
REAR AXLE COMPONENTS
Rear brake lining: Removal - Refitting
33A
-the linkage,
-the leading shoe,
-the side retainer springs of the segments, keeping
the connecting rod in contact with the brake back-
ing plate,
aRefit the lower return spring, then the upper return
spring using brake shoe pliers.
aCheck that the parking brake cable is correctly posi-
tioned on the parking brake lever.
aRemove the pliers from the slave cylinder pistons.aUse a screwdriver to adjust the piston ring diameter
with the linkage to obtain a diameter of 202.45 mm ±± ± ±
0.25.
aCarry out the same adjustment on the other side.
aAdjust the handbrake if the lever stops between the
first and second positions of the parking brake le-
ver's travel (see 37A, Mechanical component con-
trols, Parking brake lever: Adjustment, page
37A-48) .
III - FINAL OPERATION.
aRefit:
-the rear brake drums (see 33A, Rear axle compo-
nents, Rear brake drum: Removal - Refitting,
page 33A-19) ,
-the rear wheels (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) .
aAdjust the brake pads by depressing the brake pedal
repeatedly.
aCheck that the automatic wear take up system is
working properly (characteristic « click » from the
drums when the brake pedal is repeatedly de-
pressed).
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33A-17
REAR AXLE COMPONENTS
Rear brake cylinder: Removal - Refitting
33A
REMOVAL
I - OPERATION FOR PREPARATION OF PART
CONCERNED
aPosition the vehicle on a lift ( (see Vehicle: Towing
and lifting) ).
aRelease the parking brake.
aRemove:
-the rear wheels (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) ,
-the rear brake drum (see 33A, Rear axle compo-
nents, Rear brake drum: Removal - Refitting,
page 33A-19) .
II - REMOVAL OPERATION FOR PART
CONCERNED
aRemove the upper return spring (1) using brake
shoe pliers.
aRemove the brake shoes.aUndo the rigid brake pipe union (2) on the rear brake
cylinder.
aFit a cap on the rigid brake pipe union.
aRemove:
-the rear brake cylinder bolt (3) on the flange,
-the rear brake cylinder. Tightening torquesm
rear brake cylinder bolt
on the flange14.5 Nm
rigid brake pipe union
on the rear brake cylin-
der15 Nm
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Note:
Expect some br ake fluid to run out.

33A-19
REAR AXLE COMPONENTS
Rear brake drum: Removal - Refitting
33A
When a brake drum is replaced, the brake drum on the
opposite side must be replaced as well.
Always replace the brake pads if the brake drums are
being replaced.
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRelease the parking brake.
aRemove the rear wheels (see 35A, Wheels and ty-
res, Wheel: Removal - Refitting, page 35A-1) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove:
-the drum caps,
-the brake drum nuts,
-the brake drums.
REFITTING
I - REFITTING PREPARATION OPERATION
aCheck the internal diameter of the drum. Equipment required
par ts washer
Tightening torquesm
brake drum nuts175 N.m
IMPORTANT
To avoid brake imbalance, both drums must be of
the same diameter. Regrinding one drum necessi-
tates regrinding of the opposite drum.
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33A-20
REAR AXLE COMPONENTS
Rear brake drum: Removal - Refitting
33A
aAlways replace the brake drum nuts.
aparts always to be replaced: rear drum cap.
aReplace any faulty parts.
aUsing a parts washer, clean:
-the brake linings,
-the brake drums.
-the stub axle.
II - REFITTING OPERATION FOR PART
CONCERNED
aAdjust the parking brake if the lever stops between
the first and second position of the parking brake le-
ver's travel (see 37A, Mechanical component con-
trols, Parking brake lever: Removal - Refitting,
page 37A-46) .
aRefit:
-the brake drums.
-the brake drum nuts.
aTorque tighten the brake drum nuts (175 N.m) by
turning the drum while tightening the nut.
aRefit new brake drum caps.
III - FINAL OPERATION
aRefit the rear wheels (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) .
aAdjust the brake linings by depressing the brake
pedal repeatedly.
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33A-32
REAR AXLE COMPONENTS
Rear stub axle carrier: Removal - Refitting
33A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift ( (see Vehicle:
Towing and lifting) ).
aRelease the parking brake.
aRemove:
-the rear wheel on the side concerned (see 35A,
Wheels and tyres, Wheel: Removal - Refitting,
page 35A-1) ,
-the brake drum (see 33A, Rear axle components,
Rear brake drum: Removal - Refitting, page
33A-19) .
aFit the component jack to undo the shock absorber
mountings.
aRemove the shock absorber lower bolt.II - OPERATION FOR REMOVAL OF PART
CONCERNED
aAdjust the component jack.
aRemove:
-the stub axle carrier bolts (1) ,
-the stub axle carrier. Equipment required
component jack
Tightening torquesm
stub axle carrier bolts53 Nm
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Note:
Mar k the position of the stub axle carrier writing.

33A-34
REAR AXLE COMPONENTS
Rear stub axle carrier: Removal - Refitting
EQ UIPMENT LEVEL SPORT
33A
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove the rear wheel (see 35A, Wheels and ty-
res, Wheel: Removal - Refitting, page 35A-1) .aUnclip the parking brake cable from the calliper at
(1) .
aRemove:
-the brake calliper mounting bolts (2) ,
-the "brake calliper mounting - brake calliper" as-
sembly.
aAttach the "brake calliper mounting - brake calliper"
assembly to the suspension spring.
aRemove the rear brake disc (see 33A, Rear axle
components, Rear brake disc: Removal - Refit-
ting, page 33A-11) . Equipment required
component jack
Tightening torquesm
new bolts of the rear
stub axle carrier53 N.m
lower bolt of the rear
shock absorber105 N.m
new bolts of the brake
calliper mounting105 Nm
WARNING
To avoid damaging the parking brake cable protec-
tors and causing premature wear of the system, do
not handle the cables with a tool.
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