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8.9. Diagnostics of malfunctions of coupling

Symptom Possible reason
The pedal of coupling fails to a floor practically without resistance or with very insignificant resistance The main or executive cylinder is faulty (see the Head Stsepleniye).
Leak of hydraulic liquid in lines takes place (see the Head Stsepleniye).
Tightness of nipple connections of a hydraulic path is broken (see the Head Stsepleniye).
Hydraulic liquid in the tank came to an end (see the Head Routine maintenance of the car).
If liquid traces in a boot of the main cylinder take place, then the back epiploon of the main cylinder is damaged (see the Head Stsepleniye).
The release bearing or fork of switching off of coupling is damaged (see the Head Stsepleniye).
On a cover of a boot of the main cylinder and around a pedal of coupling traces of hydraulic liquid take place The back epiploon of the main cylinder is damaged (see the Head Stsepleniye).
Traces of liquid take place on the executive cylinder The epiploon of a plunger of the executive cylinder is damaged (see the Head Stsepleniye).
When squeezing a pedal of coupling the feeling of softness of the course takes place Air got to hydraulic system (see the Head Stsepleniye).
There is no coupling switching off (it is impossible to choose transfer) Transmission is faulty (see the Head the Manual Box of Gear Shifting (MBGS)).
The clutch plate is faulty (see the Head Stsepleniye).
The release bearing and fork of switching off of coupling are incorrectly assembled (see the Head Stsepleniye).
The coupling basket disk is faulty press (see the Head Stsepleniye).
Bolts of fastening of a basket of coupling to a flywheel weakened (see the Head Stsepleniye).
Coupling revolves (turns of the engine raise without increase in speed of the movement of the car) Frictional overlays of the conducted disk are excessively worn-out (see the Head Stsepleniye).
Frictional overlays of the conducted disk are polluted by oil owing to leaks through a back epiploon of a bent shaft (see the Head Stsepleniye).
The diaphragm spring weakened (see the Head Stsepleniye).
The conducted clutch plate is overheated (see the Head Stsepleniye).
At inclusion of coupling there is a vibration Frictional overlays of the conducted disk are polluted by oil or lubricant, zapolirovana to gloss or burned (see the Head Stsepleniye).
Support of the power unit are worn-out, or their fastening weakened (see Chapters the Engine and the Manual Box of Gear Shifting (MBGS)).
Vents of a main shaft of the transmission or nave of the conducted disk are worn-out (see the Head Stsepleniye).
The disk or flywheel is deformed press (see the Head Stsepleniye).
Around coupling there are extraneous noises The coupling switching off fork is incorrectly established (see the Head Couplingеof ).
The release bearing of coupling is faulty (see the Head Stsepleniye).
The coupling pedal after an otpuskaniye remains squeezed out to a floor The fork of switching off of coupling is jammed in a casing (see the Head Stsepleniye).
The release bearing or fork of switching off of coupling is broken (see the Head Stsepleniye).
Squeezing of a pedal of coupling requires too big effort The coupling switching off fork is jammed in a casing (see the Head Stsepleniye).
The disk is faulty press (see the Head Stsepleniye).
The main or executive cylinders of coupling are installed not that standard size (see the Head Stsepleniye).