6.1.1. Possible malfunctions of coupling and ways of their elimination

Possible malfunctions of coupling and ways of their elimination
Cause of defect
Way of elimination
Incomplete switching off of coupling - coupling <conducts> (transfers do not join or join hardly)
During the operation of the engine on single turns, the secondary shaft of the transmission included direct transfer and the switched-off coupling should not rotate
For conducting check it is necessary to remove cardan transfer and to insert into a back case of the transmission the separate sliding fork of cardan transfer for prevention of a leak of oil
Availability of air in the hydraulic drive of coupling
To pump over hydraulic system of the drive of coupling, to be convinced that movement of the end of a fork - not less than 14 mm
Jamming of a nave of the conducted disk on vents of a main shaft
To eliminate jamming on vents (to smooth out vents)
Buckling of the conducted disk
To replace the conducted disk or to correct it
Non-simultaneous pressing of the bearing of switching off of coupling coupling switching off levers
To adjust a relative positioning of the ends of levers of switching off of coupling
Incomplete inclusion of coupling - coupling slips (the specific smell is felt, dispersal of the car worsens, the speed of the movement falls, rise is hardly overcome)
Easing press a pruzhinzamaslivaniye of frictional overlays of the conducted disk
To replace springs to novymizamenit the conducted disk or frictional slips. In case of small oiling to wash out a surface of slips kerosene and to smooth out a small skin
Excessive wear of frictional slips (to rivets), working surfaces of a flywheel and a press disk
To replace frictional slips or conducted to diskzamenit a flywheel or press a disk or to eliminate on them teases and ring risks with machining taking into account recommendations (see <coupling repair> and <repair of the engine>)
The compensation opening of the main cylinder because of swelling of a cuff is littered or blocked by a cuff edge
To wash out working liquid the main cylinder or to replace a cuff
Not smooth inclusion of coupling
Oiling of frictional overlays of the conducted disk
To replace frictional slips
Wear of frictional slips (to rivets)
To replace the conducted disk or frictional slips
Jamming of a nave of the conducted disk on vents of a main shaft of the transmission
To eliminate jamming on vents
Non-simultaneous pressing of the bearing of switching off of coupling levers
To adjust a relative positioning of levers
Loss of elasticity of lamellar springs of the conducted disk
To replace the conducted disk
Jamming of levers of switching off of coupling in support or ledges of a press disk in casing windows
To eliminate jamming (to smooth out the interfaced surfaces)
Vibrations and noise in transmission at the movement
Breakage or wear of details of the damping device of the conducted disk
To replace the conducted disk assembled
Wear of a frictional washer or weakening of a press spring of a frictional quencher
To replace a frictional washer or a spring of a quencher
<Peep> and noise in coupling at the working engine
Failure of the bearing of switching off of coupling
To replace the bearing. To check and restore coaxiality of a case of coupling and a bent shaft (see <repair of the engine>)
Scratch when pressing a coupling pedal at the idle engine
There is no lubricant or plastic plugs of an axis of a pedal of coupling wore out
To grease plastic plugs with colloidal and graphitic medicine (OST 08-420-74) or to replace worn-out plugs new
Switching off of coupling happens only by sharp pressing a pedal. By smooth pressing the pedal easily reaches against the stop, coupling is not switched off
Pollution or big wear of a mirror of the main cylinder. Big wear of a cuff of the piston of the main cylinder
To wash out, and at wear to replace the main cylinder.
To replace a cuff
Lowering of the level of liquid in a tank of the main cylinder of switching off of coupling
Wear or hardening of a cuff of the piston of the working cylinder - liquid dribble
To replace a cuff
Violation of tightness of connection of the pipeline with the main and working cylinders - liquid dribble
To tighten connecting nuts