VOLKSWAGEN GOLF IV

since 1997 of release

Repair and car operation


Foltsvagen Golf 4
+ 1. Maintenance instruction
+ 2. Engine
+ 3. Cooling system
+ 4. Fuel system
+ 5. Exhaust system
+ 6. Ventilation and heating system
+ 7. Coupling
+ 8. Transmission
+ 9. Suspension brackets and power shafts
+ 10. Steering
+ 11. Wheels and tires
- 12. Brake system
   12.1. Technical characteristics
   + 12.2. ABS/EBV/EDS/ASR/MSR
   + 12.3. Replacement of forward brake shoes on FS-III support
   + 12.4. Replacement of brake shoes on FN-3 support
   + 12.5. Replacement of back brake shoes on disk brakes
   + 12.6. Brake disk
   12.7. Adjustment of the hand brake
   - 12.8. Replacement of back brake shoes on drum-type brakes
      12.8.1. Removal
      12.8.2. Installation
   12.9. Removal and installation of the back working brake cylinder
   + 12.10. Pumping of hydraulic brake system
   12.11. Brake pipelines and hoses
   12.12. Check of the vacuum amplifier of brakes
   12.13. Removal, installation and adjustment of the switch of a stoplight
   12.14. Removal and installation of cables of the hand brake
   12.15. Main malfunctions of brakes
+ 13. Body
+ 14. Electric equipment and electroschemes





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

12.8.1. Removal
GENERAL INFORMATION

Brake mechanism of a back wheel of drum-type type
1–ABS sensor;
2–the screw with an internal shestigrannik, 8 Nanometers;
3–nave pin;
4–bolt, 60 Nanometers;
5–the screw with crosswise the shlitsy;
6–brake drum;
7–protective cap. At removal of a brake drum removal of a protective cap is not required;
8–самоконтрящаяся dvenadtsatigranny nut, 175 Nanometers. At installation it is necessary to use a new nut;
9–a nave of a back wheel with the bearing;
10-a brake board with brake shoes;
11-back beam

Back brake shoes of a drum-type brake of the front-wheel car
1–plate of a spring. For removal of a spring it is necessary to press a plate and to turn
it on 90 °;
2–spring;
3–a brake shoe with the drive lever
hand brake;
4–top returnable spring;
5–bottom returnable spring;
6–spring;
7–brake shoe. The minimum thickness of an overlay of a brake shoe makes 2,5 mm;
8–cap. After cap removal with
brake board it is possible to check
condition of brake shoes;
 9–rasporny pin;
10-brake board;
11-a bolt with an internal shestigrannik, 8 Nanometers;
12-wheel brake cylinder;
13-wedge. At removal of a brake drum the wedge is necessary for moving up;
14-rasporny level. At installation of a rasporny level it is necessary to grease it with G000650 greasing;
15-clamping spring

The back drum-type brake has the device of automatic adjustment of a gap of brake shoes. Thus the razzhimny level automatically changes the length and by that provides a constant gap between a brake drum and brake shoes. For this purpose between a forward block and a razzhimny level the wedge with a spring, being continuation of a razzhimny level takes place. After single pressing a pedal of a brake the demanded gap is established. If because of wear the course of a block increases, the wedge under the influence of a razzhimny level and a spring falls down. Thus, the length of a razzhimny level changes and the gap of brake shoes is automatically supported.

PERFORMANCE ORDER
Prevention

Surely make replacement of all blocks on one axis even if the limit of wear were reached only by one block.
1. The thickness of back overlays of brake shoes of a drum-type brake can be checked without removal of brake drums. Remove a rubber cap which is established over an entrance of a cable of the hand brake on a brake board.
2. Highlighting a portable lamp, check thickness of overlays of brake shoes.
3. Lift a back part of the car and fix on supports.
4. Remove back wheels and release the hand brake.
5. Unscrew the screw of fastening of a brake drum.
6. Turn a brake drum so that one of openings for a bolt of fastening of a wheel settled down at an angle 45 ° from the vertical plane, in the direction to a forward part of the car.
7. Release brake shoes for what insert a screw-driver through an opening and move up a wedge.
8. Remove a brake drum. If necessary use a universal stripper.
Prevention

At the removed brake drum not to press a brake pedal as pistons can leave the working brake cylinder.
9. Flat-nose pliers press cups of springs, turn them on 90 ° and remove together with springs. At turn of Czeches from a reverse side of a brake board hold a pin on a place.
10. Similarly remove a cup and a spring from the second brake shoe.
11. Using a screw-driver, remove a brake shoe from the bottom support.
12. Remove the bottom returnable spring.
13. Disconnect from the lever of a brake shoe a cable of the hand brake.
14. Remove brake shoes and fix them in a vice. Remove the top returnable spring and a spring of a tension of a wedge.
15. Disconnect a clamping spring of a razzhimny level and remove a razzhimny level together with a wedge (the arrow specified a detachment place).