Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
+ ENGINE
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
+ 7. Major maintenance of engines
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ PRESTARTING HEATING
- TRANSMISSION
   18.2. General information
   18.3. Coupling knot
   18.4. Lever of switching off of coupling and vyzhimny bearing
   18.5. Working cylinder of coupling
   + 18.6. Main cylinder of coupling
   18.7. Air removal from hydraulic system of coupling
   18.8. Coupling pedal
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






18.5. Working cylinder of coupling

GENERAL INFORMATION

Prevention

The brake liquid used in hydraulic system of coupling is poisonous, therefore at its hit on skin it is necessary to wash out immediately this place a plentiful quantity of water. If liquid got to eyes or in an organism, it is necessary to address immediately to the doctor. Some liquids have property easily to ignite and can light up even from contact to hot knots of the car. Besides, the liquid used in hydraulic system of coupling, dissolves paint and plastic therefore at liquid hit on a paint and varnish covering of the car wash out it a plentiful quantity of water. Also this liquid is hygroscopic, i.e. absorbs moisture from air and therefore the liquid, being stored in open ware, it is not recommended to use a long time.


Details of the working cylinder of coupling

Removal

Removal of the working cylinder from a coupling case

PERFORMANCE ORDER
1. Lift a forward part of the car and fix on supports.
2. On the right side of the car establish the corresponding container under the working cylinder of coupling. Unscrew the hydraulic coupling of the pipeline on the working cylinder of coupling and disconnect a hose. After liquid plum from hydraulic system of coupling close jams the end of a hose and an opening in the working cylinder of coupling.
3. Unscrew two bolts of fastening and remove the working cylinder from a coupling case (see fig. Removal of the working cylinder from a coupling case). Remove laying.

Repair

Piston extraction from the working cylinder of coupling

Spring extraction from the working cylinder of coupling

PERFORMANCE ORDER
1. Clear an external surface of the working cylinder of coupling. Remove a lock ring and take a pusher from the working cylinder of coupling.
2. With easy blows of a hammer knock on the case of the working cylinder of coupling and take from it the piston and a spring (see fig. Piston extraction from the working cylinder of coupling, spring Extraction from the working cylinder of coupling).
3. Carefully clear details of the working cylinder of coupling, check their condition and, if necessary, replace them. It is necessary to replace a sealing ring of the piston irrespective of its condition.
4. Remove an old sealing ring from the piston. Lower a new sealing ring in brake liquid and establish it on the piston according to shooters. Check that the working edge of a sealing ring is before a spring on the piston end.
5. Grease the channel of the working cylinder of coupling with pure brake liquid and establish a spring so that rounds of a spring of bigger diameter settled down from a back part of the working cylinder of coupling.
6. Being careful, establish the piston to the canal of the working cylinder of coupling so that the ledge of the piston entered into a spring.
7. Establish a pusher with a dustproof cap to the canal of the working cylinder of coupling and fix a lock ring.

Installation

PERFORMANCE ORDER
1. Establish laying of the working cylinder of coupling so that the party with dredging was directed to a coupling case.
2. Establish the working cylinder of coupling with a pusher in a coupling case so that the pusher was established in spherical dredging in the lever of switching off of coupling.
3. Fix the working cylinder of coupling by bolts.
4. Connect a hose to the working cylinder of coupling, fill in liquid in hydraulic system of coupling and remove from it air.