Jeep Grand Cherokee

1993-1999 of release

Repair and operation of the car

Jeep Grand Cherokee
+ Cars of the Jeep Grand Cherokee brand
+ Settings and routine maintenance
+ Line six-cylinder engine
+ V8 engine
+ Procedures of the general and capital repairs of the engine
+ Cooling systems, heating and air conditioning
+ A power supply system and production of the fulfilled gases
+ System of electric equipment of the engine
+ Systems of decrease in toxicity of the fulfilled gases and engine management
+ Manual box of gear shifting
+ Automatic transmission
+ Transfer case
- Coupling and transmission line
   General information
   Coupling - the general description and check of serviceability of functioning
   Removal and installation of components of hydraulic system of switching off of coupling
   Removal, check of a state and installation of components of coupling
   Removal, check of a state and installation of the release bearing of coupling
   Check of a state and replacement of the directing bearing
   Driveshafts, differentials and bridges - the general information
   Check of a condition of the transmission line
   Removal and installation of driveshafts
   Replacement of cardan hinges
   Replacement of an epiploon of a shaft of the leading gear wheel of differential
   Removal, service and installation of a nave and bearings (forward wheel)
   Removal, capital repairs and installation of a forward power shaft
   Removal and installation of assembly of the forward bridge
   Removal and installation of a back half shaft and assembly of the bearing
   Removal and installation of assembly of the back bridge
+ Brake system
+ Suspension bracket and steering
+ Body
+ System of onboard electric equipment
+ Governing bodies and methods of operation

Coupling - the general description and check of serviceability of functioning

On all cars equipped with RKPP one-disk coupling of dry type with a diaphragm spring is established. The clutch plate (conducted) is equipped with the shlitsovanny nave providing its free sliding along shlits of a main shaft of the transmission. Conducted and press disks keep pressed to each other due to the effort developed by a diaphragm spring of a press disk.

The conducted disk and basket of coupling (with a press disk).

The system of switching off of coupling functions at the expense of hydraulic pressure. The hydraulic system of switching off of coupling consists of a pedal of coupling, the main cylinder with the tank of hydraulic liquid, hydraulic lines, the executive cylinder and the lever of switching off of coupling which is in the coupling case.

When squeezing a pedal of coupling hydraulic pressure is put to the release bearing via the coupling switching off lever. The bearing nestles on petals of a diaphragm spring of a press disk in assembly of a basket which, in turn, releases the conducted disk.

At discussion of the procedures connected with service of knots of coupling there can be problems connected with terminology as common names of many components differ from accepted by manufacturers. For example, the conducted disk can be called also a clutch plate or just a disk, the release bearing sometimes call through or the bearing of switching off of coupling, the cylinder of switching off of coupling is more often mentioned as executive or working.

Except change of obviously damaged components it is regularly necessary to make preventive checks of a condition of coupling with the purpose of diagnostics of its malfunctions.


  1. The first always makes check of level of liquid in the main cylinder of coupling. If level is insufficient, it is necessary to make having added and to carefully investigate all hydraulic system on existence of traces of leaks. If the tank of the main cylinder is empty, the system has to be pumped over with the subsequent check of functioning of coupling.
  2. For quality check of switching off of coupling start the engine and leave its working at turns of normal idling at RKPP established on neutral transfer (coupling is included - the pedal is released). Switch off coupling (squeeze out a pedal), wait several seconds and transfer a box to position of the reverse gear. At the same time there should be no gnash and other extraneous noises. Presence of those with high probability indicates malfunction of the press or conducted clutch plate (provided that RKPP as it should be).
  3. For check of completeness of switching off of coupling start the engine (the parking brake cock for the purpose of prevention of moving of the car) and hold a coupling pedal approximately in 13 mm over a floor. Several times switch a box, translating it from the provision of the first transfer to situation back and back. If smoothness in switchings of a box is absent, malfunction of components of coupling takes place. Check the course of a pusher of the executive cylinder. At completely squeezed out pedal the pusher of the executive cylinder has to act considerably. If it not so, check liquid level in the main cylinder.
  4. Make visual check of a condition of the axial plug in the top part of a pedal of coupling. Make sure of lack of signs of its zakusyvaniye or excessive side play.