2007 FORD FIESTA Workshop Manual

206-02-3 Drum Brake 206-02-3
DESCRIPTION AND OPERATION
Drum Brake
Overview
2006.0 Fiesta 1212006 G250944en
Item Description The drum brake is equipped with an automatic
adjuster which adjusts the brake shoes towards
the brake drum when lining wear occurs.
The adjustment mechanism is equipped with a
bi-metallic strip which prevents undesired
adjustment of the brake shoes when the brakes
are run hot.
1
2
3
4
5
Brake shoe
Brake cylinder
Automatic adjuster
Bi-metallic strip
Return spring
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206-0214 Drum Brake 206-02-4
DESCRIPTION AND OPERATION
The heat generated during braking is passed to
the bi-metallic strip. If the heat exceeds a critical
point, the bi-metallic strip bends upwards into the
corresponding nib and prevents further adjustment.
After the brake has cooled again, the bi-metallic
strip returns to the initial position. Adjustment is
now possible again.
2006.0 Fiesta 1212006 G250944en
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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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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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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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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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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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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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