brake FORD FIESTA 2007 Workshop Manual

206-05-1 Parking Brake and Actuation 206-05-1
SECTION 206-05 Parking Brake and Actuation
VEHICLE APPLICATION:2006.0 Fiesta
CONTENTS
PAGE
SPECIFICATIONS
................ Specifications ........................................................................\
............................. ; 206-05-2
DESCRIPTION AND OPERATION
........................................................................\
............................................. Parking Brake 206-05-3
Overview ........................................................................\
..................................................... 206-05-3
DIAGNOSIS AND TESTING
Parking Brake ........................................................................\
............................................. 206-05-5
Inspection and Verification ........................................................................\
.......................... 206-05-5
........................................................................\
........................................... Symptom Chart 206-05-5
Pinpoint Tests ........................................................................\
............................................. 206-05-5
GENERAL PROCEDURES
-- ........ Parking Brake Cable Adjustment Vehicles With: Rear Drum Brakes (12 662 0) 206-05-9
. Parking Brake Cable Adjustment
Vehicles With: Rear Disc Brakes .......... (1 2 662 0) 206-05-1 1
REMOVAL AND INSTALLATION
. Parking Brake Cable Vehicles With: Rear Drum Brakes ........................... (1 2 675 0) 206-05-1 3
. Parking Brake Cable Vehicles With: Rear Disc Brakes ............................. (1 2 675 0) 206-05-1 5
Parking Brake Control ........................................................................\
............ (1 2 664 0) 206-05-1 7
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206-05-2 Parking Brake and Actuation 206-05-2
SPECIFICATIONS
Torque Specifications
I Parking brake control retaining nuts I 24 I 18 I - I
Description Nm I b-ft Ib-in
Parking brake cable adjustment nut 4 - 35
-
2006.0 Fiesta 1212006 G28517en
(' L..
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206-05-3 Parking Brake and Actuation 206-05-3 ---
DESCRIPTION AND OPERATION
Parking Brake
Overview
2006.0 Fiesta 1212006 G250946en
Item Description Item Description
1
2
6
7
Handbrake lever
Handbrake adjusting nut Sleeve connection
Rear handbrake cable
3
4
5
Front handbrake cable
Equaliser
Handbrake cables
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206-054 Parking Brake and Actuation 206-05-4
DESCRIPTION AND OPERATION
Layout
The handbrake cable mechanism consists of three
sections: the front handbrake cable, the two
handbrake cables underneath the vehicle and the
two rear handbrake cables leading to the brakes.
The front handbrake cable is connected to the
handbrake lever via a threaded piece and a nut.
This nut is used to adjust the handbrake cable.
The two handbrake cables underneath the vehicle are both connected via a threaded piece and a nut
to the equaliser and therefore the front handbrake
cable. They are connected to the rear handbrake
cables via a sleeve connection.
The rear handbrake cables in turn link into the lever
mechanism of the rear brakes.
Function
When the handbrake lever is operated, the front
handbrake cable acts via the equaliser onto the
two handbrake cables underneath the vehicle. Via
the sleeve connection pieces these then act onto
the rear handbrake cables and, via the lever
mechanism, onto the brake.
--
2006.0 Fiesta la2006 G250946en
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206-05-5 Parking Brake and Actuation 206-05-5
DIAGNOSIS AND TESTING
Parking Brake
lnspection and Verification
1. Verify the customer concern by operating the
parking brake system.
2. Visually inspect for obvious signs of mechanical
or electrical damage.
i Symptom Chart
Visual lnspection Chart
I Mechanical I Electrical I
- Parking brake control
REFER to: Parking
Brake Control
(206-05, Removal
and Installation).
- Cable and conduit
REFER to: Parking
Brake Cable (206-
05, Removal and
Installation).
- Parking brake
warning circuit.
REFER to: Instru-
ment Cluster
(41 3-
01, Diagnosis and
Testing).
3. If an obvious cause for an observed or reported
concern is found, correct the cause (if possible)
before proceeding to the next step.
4. If the concern is not visually evident, verify the
symptom and refer to the Symptom Chart.
Symptom Chart
Svm~tom Possible Sources Action
The parking brake will not apply
Pinpoint Tests
Parking brake control. I . GO to Pinpoint Test A.
Cable and conduit.
The parking brake will not
release
PINPOINT TEST A : THE PARKING BRAKE WILL NOT APPLY
TEST CONDITIONS
DETAILSIRESU LTSIACTIONS
Parking brake control. 1. GO to Pinpoint Test B.
Cable and conduit.
Al: CHECK FOR MISADJUSTED REAR PARKING BRAKE CABLE
Operate the parking brake control several times
to adjust the cable.
Does the parking brake now engage correctly?
+ Yes
Vehicle OK
+ No
GO to A2.
2006.0 Fiesta 1212006 GI 7495en
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206-0516 Parking Brake and Actuation 206-05-6
DIAGNOSIS AND TESTING
TEST CONDITIONS
A2: CHECK FOR WORN BRAKE SHOES OR PADS
rn Inspect the brake shoes or pads for excessive
wear.
REFER to: Specifications (206-00, Specifica-
tions)
I Brake Shoes (206-02 Drum Brake, Removal
and Installation)
I Brake Pads (206-04, Removal and Installation).
Are the brake shoe linings or brake pads OK?
+ Yes
GO to A3.
+ No
INSTALL new brake shoes or pads.
REFER to: Brake Shoes (206-02 Drum Brake,
Removal and Installation)
I Brake Pads (206-04, Removal and Installa-
tion).
TEST the system for normal operation.
A3: CHECK FOR DAMAGED PARKING BRAKE CABLES
lnspect the parking brake cables and conduits
for damage, rust or fraying.
Are the parking brake cables and conduits OK?
+ Yes
CHECK for other causes such as loose
parking brake control or conventional brake
system components.
+ No
REPAIR or INSTALL cables and conduit as
necessary. TEST the system for normal
operation.
2006.0 Fiesta 1212006 GI 7495en
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206-05-7 Parking Brake and Actuation 206-05-7
DIAGNOSIS AND TESTING
B1: CHECK PARKING BRAKE CONTROL
rn Raise and support the vehicle on a lift with the
parking brake fully applied.
REFER to: Lifting
(1 00-02, Description and
Operation).
- With the aid of another technician, release the
parking brake and check the operation of the
brake cables and levers.
Did the parking brake release?
+ Yes
CHECK the other causes such as conven-
tional brake system components. REPAIR or
INSTALL new components as necessary.
+ No
GO to B2.
B2: CHECK PARKING BRAKE CABLES
rn Loosen the parking brake cable tension.
- Rotate the rear wheels by hand.
Did the rear wheels turn freely?
+ Yes
INSTALL a new parking brake control.
REFER to: Parking Brake Control (206-05,
Removal and Installation).
TEST the system for normal operation.
+ No
GO to
83.
B3: CHECK FRONT PARKING BRAKE CABLE
Disconnect the parking brake front cable and
conduit from the rear brake cable and conduit
at the equalizer.
- Rotate the rear wheels by hand.
Did the rear wheels turn freely?
+ Yes
INSTALL a new front parking brake cable and
conduit.
REFER to: Parking Brake Cable (206-05,
Removal and Installation).
TEST the system for normal operation.
+ No
GO to
B4.
i
2006.0 Fiesta 1212006 GI 7495en
PINPOINT TEST B : THE PARKING BRAKE WILL NOT RELEASE
TEST CONDITIONS
DETAl LSIRESU LTSIACTIONS
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206-05-8 Parking Brake and Actuation 206-05-8
DIAGNOSIS AND TESTING
TEST CONDITIONS
B4: CHECK REAR PARKING BRAKE CABLES
Disconnect the parking brake at the rear brakes,
one at a time.
- Rotate the wheel affected by the disconnected
parking brake.
Did the wheel turn freely?
-+ Yes
INSTALL a new parking brake control lever
on the rear drum brakes or caliper assembly
on rear disc brakes.
REFER to: Brake Shoes (206-02 Drum Brake,
Removal and Installation)
I Brake Caliper (206-04, Removal and Install-
ation).
TEST the system for normal operation.
-+ No
REFER to: Brake System (206-00, Diagnosis
and Testing).
2006.0 Fiesta 1212006 GI 7495en
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206-05-9 Parking Brake and Actuation 206-05-9
GENERAL PROCEDURES
Parking Brake Cable Adjustment - Vehicles With: Rear Drum
I. Remove the parking brake control trim panel. Stage 5: Depress the brake pedal firmly
fifteen times.
2. Loosen the parking brake cable adjustment
nut to the end of the thread.
Discard the retaining clip.
3. Release the parking brake.
4. Make sure that the parking brake cable is
correctly located.
5. N0TE:Prior to carrying out the adjustment
to a new or relocated parking brake cable,
settle the parking brake system.
Settle the parking brake system in five
stages.
Stage 1 : Raise the parking brake control four
notches.
Stage 2: Tighten the adjustment nut until
increased torque is detected.
Stage 3: Operate the parking brake control
firmly ten times.
Stage 4: Loosen the adjustment nut to the
end of the thread.
6. Release the parking brake.
7. Remove the brake backing plate inspection
cover on both sides (left-hand side shown).
8. N0TE:Make sure that the parking brake
control is fully released.
Adjust the parking brake cable in two stages
Stage 1 : With the aid of another technician,
tighten the parking brake cable adjustment
nut until the parking brake levers operate
(left-hand side shown).
Stage 2: When movement is observed on
both levers, tighten the parking brake cable
adjustment nut two full turns.
2006.0 Fiesta 1212006 GI 49892en
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206-05-1 0 Parking Brake and Actuation 206-05-1 0 -- -
GENERALPROCEDURES
9. Install the brake backing plate inspection 12. Install the parking brake control trim panel.
cover on both sides (left-hand side shown).
,-
10. Check the parking brake cable adjustment
in two stages.
Stage I : Raise and release the parking brake
control and check that it returns to the fully
released position.
If the parking brake control
does not fully release, repeat the adjustment
procedure.
Stage 2: Rotate the rear wheels and check
for brake drag. If brake drag is felt, loosen
the parking brake cable adjustment nut two
full turns and repeat the adjustment
procedure.
11. Install a new parking brake cable
adjustment nut retaining clip.
2006.0 Fiesta 1212006 Gl49892en
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