Citroen Xantia

since 1993 of release

Repair and car operation



Citroen Xantia
+ Introduction
+ Operation manual
+ Routine maintenance
+ engine Repair
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
- Coupling
   Adjustment of a drive of coupling
   Removal and installation of a cable of a drive of coupling
   Removal and installation of a pedal of coupling
   Removal, check of a condition and installation of assembly of coupling
   Removal, check of a condition of components and installation of the mechanism of switching off of coupling
+ Transmission
+ Power shafts
+ Uniform hydraulic system
+ Brake system
+ Running gear and steering
+ Body and salon furnish
+ Onboard electric equipment
+ electric equipment Schemes



Removal, check of a condition and installation of assembly of coupling

Developed in the course of wear of frictional overlays of a disk of coupling the dust can contain unhealthy asbestos. Do not blow off a dust the compressed air and at all do not inhale it. Do not wash out components of assembly of coupling by solvents on an oil basis, - for this purpose the special cleaner for components of brake mechanisms or methyl alcohol should be used. Used after rubbing of components of coupling the rags before utilization should be placed in tight container.


In spite of the fact that some new frictional materials do not contain asbestos, during performance of procedures of service of coupling it is necessary to start with the assumption that asbestos in them nevertheless is available.


Details of fastening of assembly of coupling

1 — the Bolt of fastening of a basket of coupling (one of six)
2 — Directing pins (two of three)

Removal

 PERFORMANCE ORDER

1. If the power unit is not removed from the car and not dismembered (see. Head engine Repair), access to assembly of coupling can be provided with a way of dismantle of a transmission (see. Manual box of gear shifting).
2. Before starting assembly dismantle, mark the landing provision of a basket of coupling on a flywheel. Use chalk or a marker.
3. Moving in a diagonal order, in stages (on a half of turn for an approach) evenly weaken bolts of fastening of a basket to a flywheel so that there was a possibility of their reversing manually (see an illustration of the Detail of fastening of assembly of coupling).
4. Having hooked, remove a basket from directing pins. Afterwards remove a frictional disk, having tried to remember its correct adjusting (see an illustration of the Detail of fastening of assembly of coupling).

Condition check

In view of labor input of procedures of removal and installation of assembly it is usually accepted to make at once replacement of a frictional disk, a basket and the vyzhimny bearing in a set even if one of components is worn-out only. Strictly speaking, to replace assembly of coupling it is reasonable in a preventive order each time at transmission and/or engine dismantle.


 PERFORMANCE ORDER

1. Having separated a frictional disk from a coupling basket, lay components on a workbench.
2. Before performance of cleaning of components familiarize with the prevention at the beginning of the present section. Working in well ventilated room, and it is better in the open air, carefully clear components, having wiped them the pure rags moistened in a special cleaner for components of brake mechanisms or methyl alcohol.
3. Estimate degree of wear of frictional slips. The residual thickness of slips should not be less than 0.3 mm. Check overlays for existence of signs of mechanical damages or zamaslivaniye traces. In case of identification of cracks, traces of an overheat, deep scratches, oil spots or other defects the frictional disk is subject to replacement assembled.
4. If frictional slips have a working condition, estimate wear degree шлицов disk naves, check a condition and durability of landing of torsionny springs and rivets. In case of detection of defects the disk is subject to replacement.
5. At identification of traces of a zamaslivaniye of frictional slips, check a condition of the left epiploon of a cranked shaft. Besides an epiploon, the joint of the pallet of a case with the engine block, or primary shaft of a transmission can be a source of leakages of oil. Replace defective sealing components (see respectively Chapters Repair of the engine or Transmission) before starting installation of a new frictional disk.

6. The assessment of size of palpation of a conducted disk is made by means of a tsiferblatny measuring instrument of plunzherny type on the lathe. The disk thus puts on on a shaft or a direct core of the corresponding diameter. The size of palpation of a disk should not exceed 0.4 mm. Otherwise assembly is subject to replacement.

7. Estimate size люфта landings of a conducted disk on shlitsa of primary shaft. Люфт in the direction of rotation should not exceed 0.4 mm. Excess of the stipulated value unequivocally testifies to wear of a nave of a disk.
8. Check basket assembly on existence of signs of mechanical damages. Shake press a disk, checking durability of landing of rivets. Estimate a condition of basic rings, make sure of lack of traces of an overheat of strips of fastening of a press disk to a basket. In case of identification of damages, signs of wear or weakening of the effort developed by a diafragmenny spring, replace basket assembly.

9. Check a condition of the internal ends of petals of a diafragmenny spring. The ends of petals should be at one level within the admission of 0.5 mm. Slightly deformed petals can be straightened by means of the special adaptation in the form of a metal strip with a cut. If depth of wear of the ends of petals exceeds 0.3 mm, assembly of a basket is subject to replacement.

10. Check a condition of contact surfaces of a flywheel and a frictional disk - they should be absolute, pure and free from cavities, deep scratches and задиров. Minor defects can be eliminated with a way of processing of a surface a fine-grained emery paper. In more serious cases replace a defective component. Estimate degree of not planeness of a working surface of a press disk. At excess by result of measurement of value in 0.3 mm basket assembly also is subject to replacement.

11. Check freedom of rotation of the vyzhimny bearing. Estimate a condition of its surface. In case of identification of deep scratches, cavities, задиров and other damages replace bearing assembly. On models with coupling of exhaust type the bearing is replaced assembled with a basket.

Installation

 PERFORMANCE ORDER

1. At assembly make sure of serviceability of a condition of contact surfaces of a frictional disk and a flywheel. From new components carefully remove traces of protective greasing.

2. Develop a frictional disk the podpruzhinenny party of a nave from a flywheel; on some disks the special marking, allowing to define is provided, what party to a flywheel it is necessary to establish it.

3. Establish assembly of a basket of coupling. At installation of an old basket track combination of the landing labels put in the course of dismantle (the basket is put on three directing pins). Screw fixing bolts and tighten them, while only by hand that there was a possibility of correction of provision of assembly.
4. Now it is necessary to center a frictional disk that at installation of a transmission of a shlitsa of a pin of primary shaft got to the center of a nave of a disk.

5. For centering of a conducted disk pass a screw-driver or other suitable tool in an opening in an end face of a cranked shaft. Now the frictional disk can be centered in relation to a shaft. It is alternatively possible to use the special tool that allows to reduce considerably the temporary expenses connected with adjustment. The tool can be made in house conditions of a suitable metal core or the wooden whetstone, densely sitting down in an opening in an end face of a cranked shaft. In a place of a prodevaniye of a core in a nave it is necessary to reel up an adhesive tape on it, having provided landing density in a stupichny opening.

6. Having finished a centering of a frictional disk, tighten bolts of fastening of a basket with demanded effort. Act in a diagonal order, a tightening make evenly, in stages.

7. Slightly grease shlitsa of a nave of a conducted disk of coupling and primary shaft of a transmission with greasing on the basis of a molybdenum disulfide. With the same greasing grease a nest of the vyzhimny bearing and a fork of switching off of coupling.
8. Establish into place transmission assembly (see. Manual box of gear shifting).