Mitsubishi Galant

1990-2001 of release

Repair and car operation

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

By means of coupling smooth transfer of the twisting moment developed by the engine to a primary shaft of a transmission (and further - to car driving wheels) is provided.

On all models equipped РКПП, one-disk coupling of dry type with диафрагменной a spring is used. The nave of a conducted (frictional) disk of coupling is equipped longitudinal шлицами, entering into gearing with шлицами pins of a primary shaft of a transmission. Frictional and press coupling disks are kept in contact with each other at the expense of the effort developed диафрагменной by a spring of a press disk.

The drive of deenergizing of coupling can be carried out in the hydraulic image, or means приводного a cable.

In the first case the pedal of coupling by means of a pusher is connected to the piston of the main cylinder and at its squeezing in a system path hydraulic pressure rises, результирующее which influence on connecting lines through the executive cylinder is put to the external end of the lever of deenergizing of coupling. At lever turn, fingers of its shaft rest in выжимной the bearing which, in turn, being displaced, nestles on petals диафрагменной springs of a press disk in a coupling basket. Being curved, the spring interrupts contact of press and conducted disks, releasing last.

In the second case the effort rendered on a pedal of coupling, is transferred to a plug of deenergizing by means приводного a cable.

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

a) First of all it is necessary to make an estimation of level of a liquid in the tank of the main hydraulic cylinder of coupling (see the Head of Adjustment and routine maintenance). In case of need make corresponding updating, having added demanded quantity of a hydraulic liquid, and attentively examine system on presence of signs of leaks. At a devastation of the tank of the main cylinder it is necessary to remove air stoppers from a hydraulic path, then to check up serviceability of functioning of coupling;
b) For an estimation 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 occurrence of a gnash and other extraneous noise, with high degree of probability specifying in malfunction of a conducted disk or assemblage of a basket of coupling;
c) For check of completeness of deenergizing of coupling cock a lay brake and start the engine. Keeping a coupling pedal at height about 13 mm over a floor, попереключайте a box between the first and back transfers. Presence of hindrances at lever switching speaks about malfunction of components of the mechanism of deenergizing. Estimate size of 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 up level of a hydraulic liquid in the main cylinder;
d) Make visual check of a condition of axial plugs in the top part of a pedal of coupling. Make sure of absence of signs of jamming and excessive люфта axes;
e) Having got under the car, make sure of durability of planting of the lever of deenergizing of coupling on a spherical finger of a spherical support.