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
   Specifications
   - Coupling
      Coupling - the general information and check of a condition of components
      Removal and installation of the main cylinder of coupling
      Removal and installation of assembly of the executive cylinder of coupling with the vyzhimny bearing
      Air removal from a hydraulic path of a drive of switching off of coupling
      Removal and installation of a pedal of coupling
      Removal, check of a condition and installation of components of coupling
   + Power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

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Coupling

Coupling - the general information and check of a condition of components


Design of coupling and components of its drive

1 — the Hydraulic line of a driving path of switching off of coupling
2 — the Damper
3 — a Hose connecting the main cylinder to the tank
4 — the Rod of a pusher of the main cylinder of coupling
5 — the Arm of a pedal of coupling
6 — the Sensor switch of provision of a pedal of coupling (model with tempostaty)
7 — the Sealing ring

8 — Assembly of the executive cylinder of coupling with the vyzhimny bearing
9 — the Hydraulic line
10 — the Bolt of fastening of a basket of coupling
11 — Assembly of a basket of coupling with a press disk
12 — the Conducted (frictional) disk of coupling
13 — the Directing plug
14 — Shtutsernaya a nut

On all models equipped with RKPP, one-disk coupling of dry type with a diafragmenny spring is used. The nave of a frictional (conducted) disk is equipped with the longitudinal shlitsa entering into gearing with shlitsa of a pin of primary shaft of transmission. Frictional and press disks of coupling keep in contact with each other at the expense of the effort developed by a diafragmenny spring of a press disk. A design of coupling and its drive — see an illustration the Design of coupling and components of its drive.

Switching off of coupling is made in the hydraulic way. The drive of switching off consists of a pedal of coupling, the main hydraulic cylinder with the tank, connecting lines and incorporated with the vyzhimny bearing, planted directly on an entrance shaft of a transmission, the executive cylinder (see an illustration the Design of coupling and components of its drive).

When squeezing pedal in a path of system hydraulic pressure which is as a result put to the vyzhimny bearing built in in the executive cylinder rises. The bearing under the influence of hydraulic effort nestles on petals of a diafragmenny spring of a press disk in a coupling basket. Being curved, the spring interrupts contact of press and conducted disks, releasing the last.

At coupling service, besides replacement of the components having obvious damages, it is necessary to make some primary checks (it is supposed that the transmission is in good repair):

  1. First of all it is necessary to check liquid level in the main hydraulic cylinder of coupling (see. Head Routine maintenance). In case of need make adjustment, having added demanded amount of hydraulic liquid, and attentively examine system on existence of signs of leaks. At a devastation of the tank of the main cylinder it is necessary to remove from a hydraulic path air jams (see. Air removal from a hydraulic path of a drive of switching off of coupling) then to check serviceability of functioning of coupling.
  2. For an assessment of time of switching of coupling start the engine on normal turns of idling. Make sure that neutral transfer is included and release a coupling pedal. Now squeeze out a pedal of coupling and, having waited for some seconds, include a reverse gear. Switching should not lead to emergence of a gnash and other extraneous noise, with high degree of probability indicating malfunction of a conducted disk or assembly of a basket of coupling.
  3. For check of completeness of switching off of coupling cock the parking brake and start the engine. Holding a coupling pedal at height about 13 mm over a floor, попереключайте a transmission between the first and back transfers. Existence of hindrances when switching the lever speaks about malfunction of components of the mechanism of switching off. Estimate a course of a pusher of the executive cylinder of coupling. At completely squeezed out pedal the pusher should be put forward on appreciable size, otherwise it is necessary to check level of hydraulic liquid in the main cylinder.
  4. Make visual check of a condition of axial plugs in the top part of a pedal of coupling. Make sure of lack of signs of jamming and excessive люфта axes.