Opel Astra A

1991-1998 of release

Repair and operation of the car



Opel Astra A
+ 1. Maintenance instruction
+ 2. Maintenance
+ 3. Engines
+ 4. Ventilation and heating
+ 5. Power supply system
+ 6. System of decrease in toxicity
+ 7. Coupling
+ 8. Transmissions
+ 9. Half shafts
- 10. Brake system
   10.1. Technical characteristics
   10.2. System of anti-blocking of brakes (ABS)
   10.3. Protivobuksovochny system
   10.4. Hydraulic system
   10.5. Hydraulic tubes and hoses
   10.6. Brake overlays of forward brakes
   10.7. Support of a forward brake
   10.8. Brake disk
   10.9. Protective guard of a forward disk brake
   10:10. Brake shoes of back brakes
   10:11. Brake drum of back brakes
   10:12. Wheel cylinder of a back brake
   10:13. Brake overlays of back brakes
   10:14. A support of a back brake (model with back disk brakes)
   10:15. Brake overlays of the emergency brake
   10:16. Guard of a back brake
   10:17. Brake pedal
   10:18. Vacuum amplifier
   10:19. Unilateral valve (servoamplifier)
   10:20. Main brake cylinder
   10:21. Emergency brake
   10:22. Lever of the emergency brake
   10:23. Ropes of the emergency brake
   10:24. The valve of restriction of pressure in a contour of back brakes
   10:25. Switch of fires of a stoplight
   10:26. Switch of alarm bulbs of the brake system
   10:27. ABS modulator
   10:28. ABS wheel sensor of a forward wheel
   10:29. Electronic control unit and ABS relay
   10:30. Case of a butterfly valve
   10:31. Vacuum diaphragm of a butterfly valve (antitowing system)
   10:32. Electronic control unit (antitowing system)
   10:33. Switch of antitowing system
+ 11. Suspension bracket and steering
+ 12. Body
+ 13. Electric equipment
+ 14. Electrical circuitries







10.1. Technical characteristics

GENERAL INFORMATION

System type
Ordinary brake system Forward disk and back drum brakes, the vacuum amplifier of brakes, the double, divided diagonalno hydraulic system, valves of adjustment of pressure in a contour of back brakes. The emergency brake with the trosikovy drive on back brakes.
The brake system with ABS Forward disk and back drum or disk brakes, the vacuum amplifier of brakes controlled by the hydraulic modulator, double, hydraulic system with division into forward and back brakes, valves of adjustment of pressure in a contour of back brakes. The emergency brake with the trosikovy drive on back brakes.

Forward brakes
Type
14NV, 14SE (models with the mechanical transmission (MT)), C 14 NZ, C 14 SE (MT), C 16 NZ and X 16 SZ (MT)
Continuous brake disks with mobile supports of brakes
Other models
The ventilated brake disks and mobile supports of brakes
Diameter of brake disks:
  – models with continuous brake disks
236,0 mm
  – models with the ventilated brake disks
256,0 mm
Thickness of brake disks
New:
  – models with continuous brake disks
12,7 mm
  – models with the ventilated brake disks:
     • 14 SE (models with the automatic transmission (AT)), C 14 SE (AT), C 16 SE, X 16 SZ (AT) and C 18 NZ
20,0 mm
     • X 16 XEL, C 18 XE, C 18 XEL, C 20 NE, C 20 XE and X 20 XEV
24,0 mm
Minimum admissible thickness of a disk after processing: *
  – models with continuous brake disks
10,7 mm
  – models with the ventilated brake disks:
     • 14 SE (AT), C 14 SE (AT), C 16 SE, X 16 SZ (AT) and C 18 NZ
17,0 mm
     • X 16 XEL, C 18 XE, C 18 XEL, C 20 NE, C 20 XE and X 20 XEV
21,0 mm
The most admissible beating of a disk
0,1 mm
Back brakes
Type
Models without ABS Drum brakes
Models with ABS Continuous brake disks or drums
Drum brakes
Width of an internal part of a drum:
Models with a body like "Sedan":
14 NV, C 14 NZ, 14 SE, C 14 SE, C 16 NZ and X 16 SZ
28,0 mm
All other models
45,0 mm
Internal diameter of the brake drum:
New
200,0 mm
The most admissible diameter of the brake drum after processing
201,0 mm
Disk brakes
Diameter of a brake disk
260,0 mm
Thickness of a brake disk:
New
10,0 mm
Minimum admissible thickness after processing *
8,0 mm
Minimum admissible thickness (disks need to be replaced)
7,0 mm
The most admissible beating of a disk
0,1 mm

* At achievement of this thickness of a brake disk it is possible to use only one set of brake slips, then, the disk needs to be replaced.

Moments of an inhaling, N. of m.

Fixing nuts of the ABS hydraulic modulator
8
Fixing bolt of the ABS wheel sensor
8
Valves of production of air
6
Fixing nuts of brake drums
4
Nuts of connections of brake tubes
16
Fastening of a brake hose to a support
40
Support finger
30
Forward fastening of a support to a rotary pin
95
Fastening of the main brake cylinder to a servoamplifier
22
Fixing screws of forward disk brakes
4
Fixing screws of protective guards of forward disk brakes
4
Fixing bolts of the lever of the emergency brake
20
Lock screw of the main brake cylinder
6
Fixing screws of the valve of restriction of pressure (model with a body like "Station wagon" and Weng)
20
Nuts of fastening of a guard of a back brake to a nave: *
  – step 1
50
  – step 2
Tighten on 30 – 45 °
Fixing screw of a back brake disk
8
Fastening of a support of a back brake
80
Fixing bolts of wheel cylinders
9
Fastening of an arm of a servoamplifier to a back wall of a motive compartment
22
Fastening of a servoamplifier to an arm
20
Fastening of the module of protivobuksovochny system to a body
7

* Use new nuts.