Subaru Legacy

since 1990-1998 release

Repair and operation of the car



Subaru of Legasi
+ 1.1. Identification numbers
+ 2. Maintenance
+ 3. Engines
+ 4. Heating, ventilation
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Systems of start, ignition
+ 8. Transmissions
+ 9. Coupling, shaft
- 10. Brake system
   10.1. Introduction
   10.2. Technical characteristics
   10.3. Replacement of brake shoes on disk brakes
   10.4. Support of disk brakes
   10.5. Brake disk
   10.6. Replacement of brake shoes of drum brakes
   10.7. Working brake cylinder
   10.8. Main brake cylinder
   10.9. Brake pipelines and hoses
   10.10. Replacement of the regulator of pressure
   10.11. Pumping of hydraulic brake system
   10.12. Adjustment of the emergency brake
   10.13. Replacement of a cable of the emergency brake
   10.14. Replacement of brake shoes of the emergency brake on back disk brakes
   10.15. Additional brake system
   10.16. Vacuum amplifier of brakes
   10.17. Stoplight switch
   10.18. Anti-blocking system of brakes (ABS)
+ 11. Suspension bracket
+ 12. Steering
+ 13. Body
+ 14. Electric equipment





10.6. Replacement of brake shoes of drum brakes

GENERAL INFORMATION

Back brake knot with the brake drum

1 – dustproof cap
2 – pumping union
3 – dustproof cover
4 – piston
5 – sealing ring
6 – spring
7 – case of the working brake cylinder
8 – the fixing pin
9 – stopper of a viewing opening
10 – brake board
11 – top returnable spring
12 – bracket
13 – washer
14 – lever of the emergency brake
15 – back brake shoe
16 – front brake shoe
17 – spring
18 – plate of a spring
19 – overlay of the lever
20 – adjusting level
21 – lower returnable spring
22 – regulator spring
23 – brake drum
24 – stopper

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 they need to be marked.

During the work of brake shoes brake dust which contains asbestos, unhealthy is formed. Therefore when cleaning a support do not use compressed air and do not inhale dust.


PERFORMANCE ORDER
1. Lift back part of the car and record on supports. Remove the corresponding back wheel.
2. Release the emergency brake.
3. Remove the brake drum.
4. If the brake drum is not removed from a nave, check that the parking brake is completely released.
5. If the brake drum still is not removed from a nave, it is necessary to take away from it brake shoes. It can be executed after removal of a stopper from a brake board.
6. Using a narrow screw-driver through an opening in a brake board, move the lever from a cogwheel of an adjusting level and the second screw-driver, rotating a cogwheel, take away brake shoes from the brake drum.
7. Using special liquid, clear back brake knot.
8. Using flat-nose pliers, remove a plate of a spring of fixing of a brake shoe, pressing a plate and turning on 90 °.
9. Remove a spring and take a fixing pin.
10. Remove the lower returnable spring from brake shoes.
11. Remove forward and back brake shoes and an adjusting level.
12. Disconnect a cable of the emergency brake from the lever on a back brake shoe.
13. Do not remove at the same time brake shoes of the left and right back wheel not to mix a detail of brake shoes.
14. Sort and clear an adjusting level.
15. Check a condition of returnable springs and if necessary replace them.
16. Check a condition of the working brake cylinder and if necessary replace it.
17. Apply a thin film of high-temperature greasing on places of contact of brake shoes and a brake board.
18. Establish an adjusting level in grooves of brake shoes and establish the top returnable spring.
19. Establish brake shoes on a brake board. Thus the top ends of brake shoes have to be correctly installed in the piston of the working brake cylinder.
20. Establish the lower returnable spring of brake shoes.
21. For fixing of blocks pass a pin through a brake shoe, establish a spring and fix a spring a plate, pressing a plate and turning it on 90 °.
22. Install the brake drum.
23. Adjust a gap between brake shoes and the brake drum for what wrap a wheel of an adjusting level against the stop, and then slightly release it back.
24. Thus the brake drum has to be rotated freely. If the brake drum still is kept by brake shoes, still a little bit unscrew a wheel of an adjusting level back.
25. Make replacement of brake shoes on the second back wheel.