Opel Vectra B

since 1995 of release

Repair and car operation



Vektr B. Opel
+ 1.1. Governing bodies and control devices
+ 2. Maintenance
+ 3. Engines
+ 4. Heating, ventilation
+ 5. Fuel system
+ 6. Systems of start, ignition
+ 7. Transmission
- 8. Brake system
   8.1. Introduction
   8.2. Technical characteristics
   8.3. Pumping of hydraulic brake system
   8.4. Brake pipelines and hoses
   8.5. Replacement of forward brake shoes
   8.6. Replacement of back brake shoes on disk brakes
   8.7. Replacement of back brake shoes on drum-type brakes
   8.8. Replacement of brake shoes of the hand brake
   8.9. Lobbies and back brake disks
   8.10. Forward brake disk
   8.11. Back brake disk
   8.12. Back brake drum
   8.13. Forward support
   8.14. Back support
   8.15. Back working brake cylinder
   8.16. Main brake cylinder
   8.17. Brake pedal
   8.18. Vacuum amplifier of brakes
   8.19. Unilateral valve of the vacuum amplifier of brakes
   8.20. Adjustment of the hand brake
   8.21. Lever of the hand brake
   8.22. Cable of the hand brake
   8.23. Anti-blocking system of brakes (ABS)
   + 8.24. Elements of anti-blocking system of brakes
+ 9. Running gear
+ 10. Body
+ 11. Electric equipment
+ 12. Main malfunctions





8.7. Replacement of back brake shoes on drum-type brakes

GENERAL INFORMATION

Prevention

Surely make replacement of all blocks on one axis of the car even if the limit of wear were reached by one block. If blocks are repeatedly established, before removal mark them.


PERFORMANCE ORDER
1. Remove a brake drum.
2. Being careful and security measures, clear all traces of a brake dust from a brake drum, a brake board and blocks.
3. Measure thickness of overlays of brake shoes in several points. If though one block is worn-out in any place till the minimum thickness, replace all four brake shoes.
4. Note the adjusting provision of all elements of a back brake.
5. Using flat-nose pliers, disconnect the top returnable spring of brake shoes.
6. Disconnect fixing spring of the lever of a forward block and remove fixing spring, the lever and a returnable spring from a brake shoe, noting their arrangement.
7. Remove in turn the top ends of brake shoes and take an adjusting level.
8. Using flat-nose pliers, remove a plate of a spring of fixing of a block, pressing a plate and turning it on 90 °.
9. Remove a spring and take clamp pins.
10. Separate a forward brake shoe from the bottom returnable spring and remove a brake shoe and a returnable spring.
11. Using flat-nose pliers, remove on a back brake shoe a plate of a spring of fixing of a block, pressing a plate and turning it on 90 °. Remove a spring and take clamp pins. Remove from a brake shoe a cable of the hand brake.
12. Do not remove at the same time brake shoes of the left and right back wheel not to mix a detail of brake shoes. Cores with a carving of adjusting levels of the left and right wheel are noted by letters L or R, and other details are identified by color: black for the left side and silvery for the right side.
13. Disassemble and clear an adjusting level. The arrow designated a thermal clip.
14. Check a condition of returnable springs and, if necessary, replace them.
15. If on new brake shoes there is no control lever of the hand brake, remove it from old brake shoes and establish on the new. Fix a sharnirny finger of a control lever of the hand brake a spring ring (it is specified by an arrow).
16. Apply a thin film high-temperature greasing on places of contact of brake shoes and a brake board.
17. Connect a cable of the hand brake to the lever on a back brake shoe.
18. Establish on a back brake shoe a pin of a clamp of a block, a spring and a plate of fastening of a spring.
19. Establish the bottom returnable spring on a back brake shoe and connect a spring to a forward brake shoe.
20. Establish a forward brake shoe on a brake board (a photo at the left), insert a pin of a clamp of a block, a spring and a plate of fastening of a spring (a photo on the right).
21. Collect an adjusting level for what screw an adjusting wheel on a regulator bolt so that between a wheel and a head of a bolt there was a small gap. Insert a regulator bolt into an adjusting level.
22. Establish an adjusting level between brake shoes. Check that both ends of an adjusting level are correctly established on brake shoes. Thus longer end of a fork of an adjusting level should be directed to a brake board.
23. Connect a returnable spring of the adjusting lever to a forward block and the adjusting lever and establish the lever on a sharnirny finger. Fix the adjusting lever a fixing spring.
24. Check that the top parts of brake shoes are correctly established in the piston of the working brake cylinder and establish the top returnable spring.
25. Check that the reference point of a stop of the lever of the hand brake is established against edge of a brake shoe, then establish a brake drum.
26. Make replacement of brake shoes on the second back wheel.
27. After replacement of brake shoes adjust a gap between them and a brake drum for what 20–25 times press a brake pedal. By pedal pressing at normal work of an adjusting level the clicks published by an adjusting level should be audible.
28. Check and if it is necessary, adjust the hand brake.
29. Check level of brake liquid in system.