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206-00-25 Brake System - General Information 206-00-25
DIAGNOSIS AND TESTING
TEST CONDITIONS
53: CHECK BRAKE BOOSTER CHECK VALVE
rn Disconnect the vacuum hose, for the brake
booster check valve at the intake manifold. Blow
into the hose attached to the brake booster
check valve.
Does air pass through the valve?
+ Yes
INSTALL a new brake booster check valve.
TEST the system for normal operation.
+ No
GO to J4.
54: CHECK BRAKE BOOSTER CHECK VALVE VACUUM
rn Disconnect the vacuum hose from the brake
booster check valve. Run the engine at idle.
Check the supply with a vacuum gauge.
Is the vacuum pressure above 40.5 kPa (12
in-Hg) with the brake booster non-operational?
+ Yes
GO to J5.
+ No
REPAIR or INSTALL a new vacuum hose and
fittings. TEST the system for normal operation.
55: CHECK BRAKE BOOSTER
rn Check the brake booster. GO to the component
test procedure in this section.
Is the brake booster OK?
+ Yes
GO to J6.
+ No
INSTALL a new brake booster. REFER to:
(206-07 Power Brake Actuation)
Brake Booster
- LHD (Removal and lnstallation),
Brake Booster
- RHD (Removal and lnstallation).
TEST the system for normal operation.
2006.0 Fiesta 1212006 G28494en
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Page 207 of 1226

206-02-1 Drum Brake 206-02-1
SECTION 206-02 Drum Brake
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS PAGE
SPECIFICATIONS
Specifications.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 206-02-2
Drum Brake Specification ........................................................................\
.................. 206-02-2
DESCRIPTION AND OPERATION
Drum Brake ........................................................................\
................................................. 206-02-3
Overview ........................................................................\
..................................................... 206-02-3
DIAGNOSIS AND TESTING
Drum Brake ........................................................................\
.................................................
REMOVAL AND INSTALLATION
Brake Drum ........................................................................\
............................ (122750) 206-02-6
Brake Shoes ..... .. . . . . .. . . .. .. .. . . .. . . .. . . .. . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . (1 2 285 0)
206-02-7
( Wheel Cylinder ........................................................................\
.................. (12 305 0) 206-02-9
Brake Backing Plate .... ........................................................................\
........... (12 31 3 0)
206-02-1 0
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Page 211 of 1226
206-02-5 Drum Brake 206-02-5
DIAGNOSIS AND TESTING
Drum Brake
REFER to Section 206-00 [Brake System -
General Information].
2006.0 Fiesta 1212006 GI 7465en
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Page 212 of 1226

206-02-6 Drum Brake 206-02-6
REMOVAL AND INSTALLATION
Brake Drum(l2 275 0)
Removal Remove the dust cap.
I. Remove the parking brake control trim panel.
6. Remove the brake drum.
2. Loosen the parking brake cable adjustment 1. Remove and discard the wheel hub retaining
nut to the end of the thread. nut.
2. Remove
the drum.
Discard the retaining clip.
3. Release the parking brake. Installation
4. Remove the wheel and tire. For additional 1 ~CAUTION:Rotate the drum ten times in information, refer to Section 204-04 [Wheels
the opposite direction when tightening the
and Tires].
wheel hub retaining nut to prevent damage
5. N0TE:If the dust cap is damaged on removal to
the bearing.
a new dust cap must be installed during
N0TE:lnstall a new wheel hub retaining nut.
installation.
N0TE:lnstall a new parking brake cable retaining
clip.
To install, reverse the removal procedure.
2. Adjust the parking brake cable. For
additional information, refer to
Section
206-05 [Parking Brake and
Actuation].
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Page 213 of 1226
206-02-7 Drum Brake 206-02-7
REMOVAL AND INSTALLATION
Brake Shoes(l2 285 0)
Materials 5. Detach the wheel speed sensor from the
backing plate.
Name Specification
Silicon dielectric
compound
Removal
I. Remove the parking brake control trim panel.
Grease - brake shoe
adjuster
2. Loosen the parking brake cable adjustment
nut to the end of the thread.
SAM-1 C1024-A
Discard the retaining clip.
6. Remove the brake drum.
7. Remove the hold down springs.
3. Release the parking brake.
4. Remove the wheel and tire. For additional
information, refer to Section
204-04 [Wheels
and Tires]. *' ACAUTION:DO not damage the wheel
cylinder boots.
N0TE:Hold the wheel cylinder pistons in place with
a rubber band.
2006.0 Fiesta 1212006 GI 49887en
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Page 214 of 1226
206-02-8 o Drum Brake 206-02-8
REMOVAL AND INSTALLATION
Detach the brake shoes from the wheel 11. Disconnect the parking brake cable from
cylinder. the
brake shoe.
I
9. Remove the brake shoe return springs. 12. Remove the brake shoes.
Installation
I. N0TE:Make sure that the brake shoe adjuster
is fully released.
N0TE:lnstall a new parking brake cable retaining
clip.
To install, reverse the removal procedure.
Apply grease to the brake shoe adjuster strut.
Clean the backing plate and apply silicon
dieletic compound to the brake shoe contact
points.
10. Remove the brake shoe adjuster from the 2, Adjust the parking brake cable. For
brake shoes.
additional information, refer to
Section
206-05 [Parking Brake and
Actuation].
2006.0 Fiesta 1212006 G149887en
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Page 215 of 1226
206-02-9 Drum Brake 206-02-9
REMOVAL AND INSTALLATION
Wheel Cylinder(l2 305 0)
\* , General Equipment 2. Bleed the brake system. For additional
Brake hose clamp information, refer to Section 206-00 [Brake
System
- General Information].
Removal
A CAUTI0N:lf brake fluid is spilt on the
paintwork, the affected area must be
immediately washed down with cold water.
1. Remove the brake shoes.
For additional information, refer to Brake
Shoes in this section.
2m ACAUTION:C~~ the brake tube to prevent
fluid loss or dirt ingress.
Disconnect the brake tube from the wheel
cylinder.
1. Using a suitable brake hose clamp, clamp
the brake hose.
2. Disconnect the brake tube.
3. Remove the wheel cylinder.
Installation
I. To install, reverse the removal procedure.
2006.0 Fiesta 1212006 GI 49888en
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Page 216 of 1226
206-02-1 0 Drum Brake 206-02-1 0
REMOVAL AND INSTALLATION
Brake Backing Plate(l2 31 3 0)
General Equipment
I Electric hand drill I
I Blind rivet gun-hand I
Removal
I. Remove the wheel cylinder.
For additional information, refer to Wheel
Cylinder in this section.
2. Detach the parking brake cable from the
backing plate.
I. Depress the retaining clip.
2. Detach the cable.
3.
Remove the brake backing plate.
Using a suitable electric hand drill remove
the rivets
Installation
1. To install, reverse the removal procedure.
Using a suitable blind rivet gun-hand, install
new rivets.
2006.0 Fiesta 1212006 G149889en
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