Ford Sierra

3.1.4.10.2. Service and repair

THE GENERAL DATA

Back disk brake

1 – a support, 2 – the holder of a support, 3 – a directing finger of a support, 4 – a protective casing, 5 – a bolt of fastening of a support to the holder, 6 – деаэратор, 7 – the lever of a manual brake, 8 – a spring,

9 – elements of actuating of the piston after inclusion of a manual brake, 10 – the piston, 11 – brake колодки, 12 – a brake disk, 13 – a nave of a wheel, 14 – a sealing ring, 15 – the bearing of a nave of a wheel, 16 – a board of a brake disk

FORWARD BRAKES

Service and repair of forward brakes are spent in the same way, as well as brakes without antiblocking system (subsection 10.2 see).

BACK BRAKES

Replacement of brake columns

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The prevention

It is recommended to replace simultaneously all brake колодки both back brakes at achievement of the minimum thickness at least with one of brake колодок. It is necessary to use brake колодки specified mark and type.

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PERFORMANCE ORDER

1. To weaken nuts of fastening of back wheels. 2. To check up, whether the manual brake is included. 3. To lift and fix a back part of the car on supports and to remove back wheels. 4. To disconnect a cable of a manual brake from скобы 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 directing finger of a support. 6. To unscrew and take a forward bolt of fastening of a support to the holder, holding with a flat key directing finger of a support. 7. To turn a support upwards concerning the holder (on back to a fastening bolt). 8. To take brake колодки. 9. Cautiously to press the piston in the cylinder of a support by means of corresponding wooden бруска, paying attention not to damage an elastic casing of the piston. 10. To check up:       – A condition of a casing of the piston;       – A condition of a surface of a support;       – A condition of a brake disk;       – Absence of traces вытекания a brake liquid. 11. To establish new brake колодки. 12. To turn a support (on back to a fastening bolt). 13. To insert a 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 a manual brake for скобу the lever of a back suspension bracket. 16. To check up, whether the brake disk can freely rotate at the released pedal of a brake. 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 support installation

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The prevention

Before support removal it is necessary to merge the hydraulic accumulator of brake system. For this purpose it is necessary to switch off ignition and to press against the stop a brake pedal (about 20 times) while it does not become "firm".

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PERFORMANCE ORDER

1. To weaken nuts of fastening of back wheels. 2. To lift and fix a back part of the car and to remove a corresponding wheel. 3. To lift and fix a back part of the car and to remove a corresponding wheel. 4. To disconnect a cable of a manual brake from the lever on a support. 5. To disconnect brake hoses from pipelines. Apertures in pipelines to close corresponding заглушками. 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 support installation it is necessary to execute actions in return sequence in relation to process of its removal and to remove air from brake system.

Dismantling and support assemblage

The method of dismantling and support assemblage is described at removal and installation brake колодок (subsection 10.3.2 see).

Support repair

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 the adaptation 12.006 so that it acted from the cylinder approximately on 20 mm. 5. To remove an elastic casing from a piston flute. 6. Completely to take the piston from the cylinder. 7. To take an elastic casing of the piston. 8. Carefully to wash up the piston and the cylinder. 9. Attentively to check up a condition of all details. All scratches or wear tracks on a piston or cylinder surface mean compulsion of replacement of a complete support. 10. At assemblage it is necessary to replace all consolidations and to grease components with a brake liquid. 11. To connect a support to its holder. 12. To establish and fix a support in the car (subsection 10.2.2 see). 13. To remove air from brake system.

Replacement of a brake disk

PERFORMANCE ORDER

1. To weaken nuts of fastening of a corresponding back wheel. 2. To lift the car and to remove a wheel. 3. To disconnect a cable of a manual brake from скобы 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 position 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 a manual brake for скобу 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 some times a brake pedal, to result brake колодки in contact to a brake disk.