2009 RENAULT TWINGO Chasiss Workshop Manual

33A-7
REAR AXLE COMPONENTS
Rear brake calliper: 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).
aRelease the parking brake.
aPosition a pedal press on the brake pedal to limit
the outflow of brake fluid.
aRemove the rear wheel (see 35A, Wheels and ty-
res, Wheel: Removal - Refitting, page 35A-1) .II - OPERATION FOR REMOVAL OF PART
CONCERNED
aUnclip the parking brake cable from the brake calli-
per at (1) .
aMove aside the parking brake cable.
aLoosen the calliper brake pipe union (2) .
aRemove:
-the brake calliper guide pin bolts (3) ,
-the brake calliper from the mounting,
-the union between the brake pipe and the calliper,
-the brake calliper.
REFITTING
I - REFITTING PREPARATION OPERATION
aClean using a wire brush and BRAKE CLEANER
(see Vehicle: Parts and consumables for the re-
pair) (04B, Consumables - Products):
-the calliper supports,
-the callipers.
aAlways replace the brake calliper guide pin bolts. Special tooling required
Fre. 1190-01Brake calliper piston return
tool.
Equipment required
pedal press
Tightening torquesm
new bolts on the brake
calliper guide pins35 N.m
brake pipe union on the
calliper13 N.m
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.
132468

33A-8
REAR AXLE COMPONENTS
Rear brake calliper: Removal - Refitting
EQ UIPMENT LEVEL SPORT
33A
aPush the piston to the bottom of its housing using
the (Fre. 1190-01).
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit the brake calliper on the calliper mounting.
aTorque tighten:
-the new bolts on the brake calliper guide pins
(35 N.m),
-the brake pipe union on the calliper (13 N.m).
aFit the parking brake cable.
aClip the handbrake on the brake calliper.
III - FINAL OPERATION
aRefit the rear wheel (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) .
aRemove the pedal press from the brake pedal.
aBleed the brake circuit (see 30A, General informa-
tion, Braking circuit: Bleed, page 30A-4) .
106309
IMPORTANT
To avoid any accident, bring the pistons, brake
pads and brake discs into contact by depressing
the brake pad several times.

33A-9
REAR AXLE COMPONENTS
Rear brake calliper mounting: 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).
aRelease the parking brake.
aRemove:
-the rear wheel (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) ,
-the rear brake pads (see 33A, Rear axle compo-
nents, Rear brake pads: Removal - Refitting,
page 33A-1) .aRemove:
-the brake calliper guide pin bolts (1) ,
-the brake calliper from the mounting.
aAttach the brake calliper to the suspension spring.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove:
-the brake calliper mounting bolts (2) ,
-the brake calliper mounting. Special tooling required
Fre. 1190-01Brake calliper piston return
tool.
Tightening torquesm
bolts of the brake calli-
per mountingXXX
new bolts of the brake
calliper guide pins105 N.m
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.
132468
132465

33A-10
REAR AXLE COMPONENTS
Rear brake calliper mounting: Removal - Refitting
EQ UIPMENT LEVEL SPORT
33A
REFITTING
I - REFITTING PREPARATION OPERATION
aClean using a wire brush and BRAKE CLEANER
(see Vehicle: Parts and consumables for the re-
pair) (04B, Consumables - Products):
-the calliper supports,
-the callipers.
aAlways replace:
-the calliper mounting bolts,
-the calliper guide pin bolts.
aPush the piston to the bottom of its housing using
the (Fre. 1190-01).
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit the brake calliper mounting.
aTorque tighten the bolts of the brake calliper
mounting (XXX).
III - FINAL OPERATION.
aRefit:
-the brake calliper,
-the brake pads (see 33A, Rear axle components,
Rear brake pads: Removal - Refitting, page 33A-
1) .
aTorque tighten the new bolts of the brake calliper
guide pins (105 N.m).aRefit the rear wheel (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) .
106309
IMPORTANT
To avoid any accident, bring the pistons, brake
pads and brake discs into contact by depressing
the brake pad several times.

33A-11
REAR AXLE COMPONENTS
Rear brake disc: Removal - Refitting
EQ UIPMENT LEVEL SPORT
33A
Brake discs cannot be reground. If there is excessive
scoring or wear, they will need to be replaced (see
30A, General information, Brake: Specifications,
page 30A-19) .
REMOVAL
I - REMOVAL PREPARATION OPERATION
aPosition the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
aRemove:
-the rear wheels (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) ,
-the rear brake pads (see 33A, Rear axle compo-
nents, Rear brake pads: Removal - Refitting,
page 33A-1) .aRemove:
-the brake calliper mounting bolts (1) ,
-the "brake calliper mounting - brake calliper" as-
sembly.
aAttach the "calliper mounting - brake calliper" to the
shock absorber spring.
II - OPERATION FOR REMOVAL OF PART
CONCERNED
aRemove the hub's nut cover (2) . Equipment required
par ts washer
Tightening torquesm
new hub nut175 N.m
brake calliper mounting
bolts105 N.m
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.
132467
132456

33A-12
REAR AXLE COMPONENTS
Rear brake disc: Removal - Refitting
EQ UIPMENT LEVEL SPORT
33A
aRemove:
-the nut (3) from the hub,
-the brake disc.
REFITTING
I - REFITTING PREPARATION OPERATION
aAlways replace the hub nut.
aClean the brake discs using a parts washer.
aDry the disc surfaces.
aClean the stub axle using a wire brush and BRAKE
CLEANER (see Vehicle: Parts and consumables
for the repair) (04B, Consumables - Products).
II - REFITTING OPERATION FOR PART
CONCERNED
aRefit the brake disc.
aTorque tighten the new hub nut (175 N.m ).
aRefit the hub's nut cover.
III - FINAL OPERATION.
aRefit:
-the "calliper mounting - brake calliper" assembly,
-the brake pads (see 33A, Rear axle components,
Rear brake pads: Removal - Refitting, page 33A-
1) .aTorque tighten the brake calliper mounting bolts
(105 N.m).
aRefit the rear wheels (see 35A, Wheels and tyres,
Wheel: Removal - Refitting, page 35A-1) .
132455
IMPORTANT
To avoid any accident, bring the pistons, brake
pads and brake discs into contact by depressing
the brake pad several times.

33A-13
REAR AXLE COMPONENTS
Rear brake disc: Description
EQ UIPMENT LEVEL SPORT
33A
I - PREPARATION OPERATION FOR CHECK
Position the vehicle on a two-post lift (see Vehicle:
Towing and lifting) (02A, Lifting equipment).
Remove the rear wheel concerned (see 35A, Wheels
and tyres, Wheel: Removal - Refitting, page 35A-1) .
II - CHECKING OPERATION FOR PART
CONCERNED
Position the Palmer tool (1) to measure the disc thick-
ness.Measure the thickness of the disc at 4 points in order
(90˚ apart).
Compare the values with those recommended by the
manufacturer (see 30A, General information, Brake:
Specifications, page 30A-19) .
III - FINAL OPERATION
Replace the discs if necessary (see 33A, Rear axle
components, Rear brake disc: Removal - Refitting,
page 33A-11) .
Refit the rear wheel concerned (see 35A, Wheels and
tyres, Wheel: Removal - Refitting, page 35A-1) . Note:
Use a Palmer type tool to check the thickness of the
disc.
117058
99582

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.
86561
86560