Opel Astra, Zafira

since 1998 of release

Repair and car operation



Opel Astra
+ Opel Astra and Zafira Cars
+ Operation manual
+ Routine maintenance
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
- Brake system
   Specifications
   System of anti-blocking of brakes (ABS) and antiprobuksovochny system (TCS) - the general information and codes of malfunctions
   Pumping of brake system
   Check of a condition and replacement of brake lines and hoses
   Replacement of blocks of disk brake mechanisms of forward wheels
   Replacement of blocks of disk brake mechanisms of back wheels
   Replacement of boots of drum-type brake mechanisms of back wheels
   Condition check, removal and installation of a brake disk
   Removal, check of a condition and installation of a brake drum
   Removal, regenerative repair and installation of supports of disk brake mechanisms of forward wheels
   Removal, regenerative repair and installation of supports of disk brake mechanisms of back wheels
   Removal, service and installation of wheel cylinders of drum-type brake mechanisms of back wheels
   Removal and installation of the main brake cylinder
   Removal and installation of a pedal of a foot brake
   Check of serviceability of functioning/tightness, removal and installation of assembly of the vacuum amplifier of brakes
   Removal, check of serviceability of functioning and installation of the return valve of the vacuum amplifier of brakes
   Removal and installation of the vacuum pump of the servo-driver of the brake amplifier (diesel models)
   Check of serviceability of functioning of the vacuum pump of the servo-driver of the brake amplifier (diesel models)
   Adjustment of a drive of the parking brake
   Removal and installation of the lever of the parking brake
   Removal and installation of cables of a drive of the parking brake
   Removal, installation and adjustment of the sensor switch of stoplights
   Removal and installation of the sensor switch of a control lamp of raising of the parking brake
   Removal and installation of the ABS and TCS components
   Removal, installation and adjustment of the valve regulator of pressure in hydraulic contours of brake mechanisms of back wheels
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


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Pumping of brake system

Pumping of brake system make in goggles. At casual hit of brake liquid in eyes immediately wash out them a plentiful quantity of water and address for the help to the doctor!

Pumping of hydraulic system is made for the purpose of removal from it of the air getting to a path at performance of service of brake mechanisms, replacement of hydraulic lines or GTTs, and also when lowering below the minimum admissible value of level of liquid in the tank of the main cylinder.

If air got to system owing to falling of level of liquid in the GTTs tank, or at a detachment from GTTs of brake lines, brake mechanisms of all four wheels are subject to pumping. At a detachment of lines from any of supports / wheel cylinders will enough pump over only this concrete brake mechanism.

If the detachment of the brake line from the union located between GTTs and one of brake mechanisms was made, only this part of a brake contour is pumped over.

 PERFORMANCE ORDER

  1. Several times squeeze out a pedal of a foot brake at the muffled engine for dumping of residual depression in the vacuum amplifier of brakes.
  2. Uncover the GTTs tank, necessarily add to the tank fresh liquid, then enclose under a cover polyethylene and screw it into place.

Do not forget to check regularly liquid level in the tank during pumping performance. Excessive falling of level is fraught with hit in air GTTs that will bring to naught all undertaken efforts and will cause need of pumping of all brake system.

The main method of pumping - is required the help of the assistant

 PERFORMANCE ORDER

  1. Secure with the help of the assistant, prepare a stock of more freshly brake liquid, the transparent vessel which has been partially filled with brake liquid, the piece of a plastic hose which is densely put on the gate of pumping, and suitable rozhkovyy/a cap key for otpuskaniya/gate tightenings.
  1. Remove a dustproof cap and slightly weaken the gate of pumping (1) brake mechanism of the right back wheel, then again tighten it so that it easily and was quickly released during procedure performance.

  1. Pull on the gate the suitable plastic or rubber hose which second end lower in transparent vessel partially filled with pure brake liquid. The cut of a hose should appear completely shipped in liquid.

  1. Ask the assistant to squeeze out slowly several times a pedal of a foot brake, having lifted thereby pressure in system.
  2. At the brake pedal fixed in the bottom situation slightly open the pumping gate so that from it brake liquid started to be forced out. Watch a liquid exit from a hose. Through pair of seconds when the pressure will weaken, close the gate and allow to release to the assistant a pedal.
  3. Repeat procedures of the last two paragraphs until free liquid will not start to follow from the gate from air bubbles, then pass to the brake mechanism of the left back wheel. Operating in a similar manner, pump over this mechanism, then mechanisms right forward and, at last, - left forward wheels.

Constantly watch that liquid level in the GTTs tank did not fall excessively low!

At all do not add in the tank the brake liquid which was in the use, - it is hygroscopic in the highest measure and over time absorbs in itself a lot of moisture that conducts to falling of a point of its boiling and, as a result, to decrease in efficiency of braking. Besides, presence at hydraulic system of moisture promotes the accelerated aging of a material of flexible brake hoses.

Pumping method with set use with the return valve

As tells the name, the piece of a hose equipped with the one-pass valve enters into a set for pumping. The valve prevents possibility of return of pushed-out liquid back in system and will allow to make pumping by strengths of one person, - do not forget about need of tracking of level of liquid for the tank of the main cylinder (level should not fall below MIN mark!).

Pumping with use of the compressed air

As a source of the compressed air the spare wheel can be used, - previously it is necessary to dump pressure of its rating. Act according to instructions enclosed to a set.

When using the similar device it is required to release only the gate of pumping and to wait the exit terminations from a path of air bubbles.

The main advantage of this way is that the big tank entering into a set with hydraulic liquid is not allowed by an air podsasyvaniya to the highway during pumping.

All methods

 PERFORMANCE ORDER

  1. On termination of pumping add in the GTTs tank fresh brake liquid, having brought its level into norm.
  2. Check efficiency of functioning of brakes. The pedal when squeezing should show firm resistance, - the feeling of softness of its course testifies to existence in hydraulic contours of air and need of repetition of procedure of pumping.

Do not start at all car operation, being not absolutely sure of serviceability of functioning of brake system!