Ford Sierra

1982-1993 of release

Repair and operation of the car



Ford Siyerra
+ 1.2. Identification of the car
+ 2. Maintenance
- 3. General data
   - 3.1. Cars with petrol engines
      3.1.1. Masses and transfer numbers
      3.1.2. Operational liquids
      + 3.1.3. Changes in a car design from 1984 to 1986.
      - 3.1.4. Changes in a car design from 1987 to 1989.
         3.1.4.1. OHC engine
         + 3.1.4.2. Dm3 CVH 1,8 engine
         + 3.1.4.3. DOHC engine
         + 3.1.4.4. Service and repair
         + 3.1.4.5. Coupling
         3.1.4.6. Mechanical five-speed transmission of N type
         + 3.1.4.7. Mechanical MT 75 five-speed transmission
         3.1.4.8. Automatic transmission
         3.1.4.9. Forward suspension bracket
         - 3.1.4.10. Brake system
            3.1.4.10.1. Technical characteristics
            3.1.4.10.2. Service and repair
            3.1.4.10.3. Adjustment of the emergency brake
            3.1.4.10.4. Removal of air from the brake system
            3.1.4.10.5. Anti-blocking system
            3.1.4.10.6. ABS functioning check
            3.1.4.10.7. Hydraulic knot of management
            3.1.4.10.8. Sensor of speed of rotation of wheels
         + 3.1.4.11. Electric equipment
         3.1.4.12. General data
      + 3.1.5. Changes in a car design from 1990 to February, 1993.
   + 3.2. Cars with diesel engines
+ 4. Engines
+ 5. Coupling
+ 6. Transmissions
+ 7. Driveshaft and back bridge
+ 8. Steering
+ 9. Suspension brackets
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment


a773976c



3.1.4.10.2. Service and repair

GENERAL INFORMATION

Back disk brake

1 – support,
2 – holder of a support,
3 – the directing support finger,
4 – protection cover,
5 – a bolt of fastening of a support to the holder,
6 – deaerator,
7 – lever of the emergency brake,
8 – spring,
9 – elements of actuating of the piston after turning on of the emergency brake,
10 – piston,
11 – brake shoes,
12 – brake disk,
13 – wheel nave,
14 – sealing ring,
15 – wheel bearing,
16 – board of a brake disk

FORWARD BRAKES

Service and repair of forward brakes are carried out in the same way, as well as brakes without anti-blocking system (see subsection 10.2).

BACK BRAKES

Replacement of brake columns


Prevention

It is recommended to replace at the same time all brake shoes of both back brakes at achievement of the minimum thickness at least with one of brake shoes. It is necessary to use brake shoes specified brand and type.


PERFORMANCE ORDER
1. To weaken nuts of fastening of back wheels.
2. To check whether the emergency brake is switched on.
3. To lift and record a back part of the car on supports and to remove back wheels.
4. To disconnect a cable of the emergency brake from a bracket on the lever of a back suspension bracket.
5. To weaken a back bolt of fastening of a support to the holder, holding with a flat key the directing support finger.
6. To unscrew and take a forward bolt of fastening of a support to the holder, holding with a flat key the directing support finger.
7. To turn a support up concerning the holder (on back to a fastening bolt).
8. To take brake shoes.
9. To carefully press the piston in the support cylinder by means of the corresponding wooden whetstone, paying attention not to damage an elastic casing of the piston.
10. To check:
      – condition of a casing of the piston;
      – condition of a surface of a support;
      – condition of a brake disk;
      – lack of traces of an effluence of brake fluid.
11. To establish new brake shoes.
12. To turn a support (on back to a fastening bolt).
13. To insert the plate protecting from vibration (if it is used).
14. To tighten the corresponding moment bolts of fastening of a support to the holder.
15. To hook on a cable of the emergency brake for a bracket of the lever of a back suspension bracket.
16. To check whether the brake disk can freely rotate at the released brake pedal.
17. To put on back wheels and to lower the car.
18. To tighten nuts of fastening of back wheels the corresponding moment.

Removal and installation of a support


Prevention

Before removal of a support it is necessary to merge the hydraulic accumulator of the brake system. For this purpose it is necessary to switch off ignition and to press against the stop a brake pedal (about 20 times) until it becomes "firm".


PERFORMANCE ORDER
1. To weaken nuts of fastening of back wheels.
2. To lift and record a back part of the car and to remove the corresponding wheel.
3. To lift and record a back part of the car and to remove the corresponding wheel.
4. To disconnect a cable of the emergency brake from the lever on a support.
5. To disconnect brake hoses from pipelines. To close openings in pipelines the corresponding caps.
6. To unscrew and take bolts of fastening of the holder of a support.
7. To remove the holder of a support and a support.
8. For installation of a support it is necessary to perform operations in the return sequence in relation to process of its removal and to remove air from the brake system.

Dismantling and assembly of a support

The method of dismantling and assembly of a support is described at removal and installation of brake shoes (see subsection 10.3.2).

Repair of a support

PERFORMANCE ORDER
1. To remove a brake support (see above).
2. To disconnect a support from the holder.
3. To establish a support in a vice.
4. To extend the piston from a support by means of adaptation 12.006 so that he acted from the cylinder approximately on 20 mm.
5. To remove an elastic casing from a piston flute.
6. To completely take the piston from the cylinder.
7. To take an elastic casing of the piston.
8. To carefully wash up the piston and the cylinder.
9. To attentively check a condition of all details. All scratches or wear tracks on the surface of the piston or cylinder mean obligation of replacement of a complete support.
10. At assembly it is necessary to replace all consolidations and to grease components with brake fluid.
11. To connect a support to his holder.
12. To establish and fix a support in the car (see subsection 10.2.2).
13. To remove air from the brake system.

Replacement of a brake disk

PERFORMANCE ORDER
1. To weaken nuts of fastening of the corresponding back wheel.
2. To lift the car and to remove a wheel.
3. To disconnect a cable of the emergency brake from a bracket on the lever of a back suspension bracket.
4. To unscrew two bolts of fastening of a support.
5. To suspend a support under the car by means of a soft wire, paying attention not to damage brake hoses.
6. To designate the provision of a disk concerning a wheel nave.
7. To take a spring adjusting ring of a brake disk.
8. To take a brake disk.
9. To establish a brake disk in relation to a wheel nave according to the designations executed at removal and to put on a spring adjusting ring.
10. To fix a support.
11. To hook on a cable of the emergency brake for a bracket on the lever of a back suspension bracket.
12. To establish a wheel and to lower the car.
13. To tighten nuts of fastening of a wheel the necessary moment.
14. To press several times a brake pedal to bring brake shoes into contact with a brake disk.