E39 series BMW 5

since 1996-2001 of release

Repair and car operation



E39 BMW
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
- Brake system
   Anti-blocking system
   Removal and installation of forward brake shoes
   Removal and installation of a brake disk / support of a forward brake
   Removal and installation of back brake shoes
   Removal and installation of back brake supports
   Removal and installation of a brake disk of back wheels
   Measurement of thickness of a brake disk
   Brake liquid
   Air removal from brake system
   Replacement of brake pipelines
   Replacement of a forward brake hose
   Check of the vacuum amplifier of a brake
   Removal and installation of brake shoes of the parking brake
   Adjustment of the parking brake
   Removal and installation of the lever of the parking brake
   Removal and installation of a cable of the parking brake
   Check and replacement of the switch of a stoplight
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Schemes
+ System of onboard diagnostics





Removal and installation of a brake disk of back wheels

 REMOVAL

1. Remove a support of a back brake. Do not disconnect a brake hose. Otherwise after installation it is necessary to remove air from brake system.

2. Suspend a support on a wire to a suspension bracket. Watch that the brake hose was not overwound.
3. Turn out a bolt of fastening (shooter) a face key of 5 mm.

4. Completely release the parking brake.
5. Remove a brake disk. If the disk does not act in film, take away back blocks of the parking brake, address to the Section Removal and installation of brake shoes of the parking brake.

Installation

For ensuring uniform braking from both wheels both brake disks should have a surface with an identical roughness. Therefore it is necessary to replace or pierce surely both disks at the same time.
In repair trucks the brake disk can be checked on palpation. The most admissible palpation makes 0.2 mm (the established disk means).

 INSTALLATION

1. Measure thickness of a brake disk, address to the Section Measurement of thickness of a brake disk.
2. Clear new brake disks a nitrothinner.
3. Establish a brake disk on a nave of a back wheel and fix a face key. Previously turn a disk that openings under bolts coincided.
4. Establish a support with brake shoes. Thus watch that the hose was not overwound. Fix a support, address to the Section Removal and installation of back brake supports.

If the brake hose acted in film, fix it and remove their systems air, address to the Section air Removal from brake system.

5. Adjust the parking brake, address to the Section Adjustment of the parking brake.
6. Establish and fix back wheels. Do not oil fastening bolts. Wheels establish so that the markings put at removal coincided. Lower the car on wheels, tighten fastening bolts cross-wise the moment of 100 Nanometers.

Several times strongly press a brake pedal so that resistance was felt. Thus brake shoes will nestle on a disk and will occupy the working situation.

7. Check level of brake liquid in the tank. If necessary add it to MAX mark.
Attention, check reliability:
   a) Whether brake hoses are fixed?
   b) Whether the brake hose in the holder is fixed?
   c) Whether the union of removal of air is tightened?
   d) Whether enough brake liquid in the tank?
   e) On the working engine check tightness of system. For this purpose press a brake pedal effort of 200-300 N (20-30 kg) and hold it during 10 pages. The effort of pressure of a pedal of a brake to a foot should not weaken.
   f) Check all connections on tightness.

New brake disks should be earned carefully extra in three stages.
Stage 1: 5 strong braking since speed of 50 km/h on the road without transport.
Stage 2: let's to a brake be cooled.
Stage 3: 5 braking for speed of 50 km/h.