Mercedes S-Class W-140

1991-1999 of release

Repair and operation of the car

Mercedes S-Class
+ Mercedes-Benz cars of the class S (W-140)
+ Operation manual
+ Routine maintenance
+ Engine
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Gear shifting box
- Automatic transmission
   Search of malfunctions - the general information
   - Automatic transmission 722.5
      Removal, check of a state and installation of the converter of rotation (hydrotransformer)
      Removal and installation of the centrifugal regulator
      Removal and installation of the sensor switch of blocking of a starter (permission of start)
      Vacuum knot - installation details
      Removal, service and installation of the secondary pump (AT to No. 3652931)
      Removal and installation of a forward cover with the secondary pump
      Removal and installation of the LB3 piston
      Removal and installation of a back cover of transmission
      Dismantling and assembly of valvate assembly of AT
      Dismantling and assembly of transmission
      Installation and check of a gap in a multidisk brake of B3
      Measurement of a gap in B1 brake
      Coupling of the raising transfer
      Removal, installation and check of components of a brake of BS of the raising transfer and coupling of KS
      Dismantling and assembly of the coupling of a free wheeling
      Dismantling and assembly of planetary mechanisms
      Dismantling and assembly of coupling of K1
      Coupling of K2
      Gear shifting selector lever
   + Automatic transmission 722.6
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment


Dismantling and assembly of the coupling of a free wheeling

Design of the coupling of a free wheeling

1 — Koronchataya a gear wheel
2, 4 — Lock rings
3 — Laying

5 — the Sealing ring
6 — the Roller bearing
9 — the Internal ring of the coupling
10 — the External ring of the coupling


1. Disassemble the transmission (see the Section Dismantling and assembly of transmission).
2. Remove a lock ring (2).
3. Remove the coupling (assembled), without disassembling it, from a koronchaty gear wheel (1).
4. Remove a lock ring (4).
5. Remove laying (3).
6. Remove a sealing ring (5).
7. Remove an internal ring (9) of the coupling from the roller bearing (6).
8. Remove the roller bearing (6).
9. Check an external ring (10) of the coupling, the roller bearing (6) and an internal ring (9) of the coupling for lack of wear.
10. Check an axial gap of the coupling. It has to be within 0.05 - 0.2 mm.
11. Establish laying (11) so that the neck (arrow) on an external ring of the coupling was established in an opening.
12. Establish laying (17) and an external ring of the 10th coupling with an internal ring (9) in a connecting support.
13. Establish a persistent washer (18) in an internal disk (24).
14. Establish an internal disk (24) in a connecting support (7). Establish a lock ring (21).
15. Check an axial gap between laying (17) and a connecting support (7), the axial gap is regulated by selection of laying. Laying 0.1, 0.2 and 0.3 mm thick is issued.