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
   Specifications
   Search of malfunctions - the general information
   + Automatic transmission 722.5
   - Automatic transmission 722.6
      Removal and installation of the AT electrohydraulic control unit (transmission is established)
      Dismantling and assembly of the electrohydraulic control unit
      Dismantling and assembly of a plate of gear shifting
      Dismantling and assembly of the case of transmission and hydrotransformer
      Dismantling and assembly of multidisk brakes of B2, B3 and gear wheel of blocking of transmission in situation "P"
      Dismantling and assembly of a back hollow shaft with the back coupling of a free wheeling
      Removal and installation of a multidisk brake B1 and oil pump
      Dismantling and assembly of the oil pump
      Dismantling and assembly of a multidisk brake of B1
      Dismantling and assembly of a multidisk brake of B2
      Dismantling and assembly of an output shaft with the central and back blocks of planetary gear wheels
      Removal and installation of multidisk couplings K1, K2 and K3
      Dismantling and assembly of coupling of K1
      Dismantling and assembly of the leading shaft with coupling by K2 and the forward block of planetary gear wheels
      Dismantling and assembly of coupling of K3
      Removal and installation of the mechanism of blocking of transmission in situation "P"
      Removal and installation of the lever of the selector of gear shifting
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment






Dismantling and assembly of the leading shaft with coupling by K2 and the forward block of planetary gear wheels

Dismantling

Details of installation of components of the leading shaft with coupling by K2 and the forward block of planetary gear wheels

84 — the Internal support of coupling K1 with the integrated forward block of planetary gear wheels
84a — the Gear wheel
84b, 104, 106 — Lock rings
85 — the Persistent needle bearing
100 — the Conducting shaft with coupling of K2
101 — the Piston

101a — the Internal epiploon of the piston 101b — the External epiploon of the piston
102, 107 — Disk springs
103 — the Spring clamp
103a — the Epiploon of a spring clamp
105 — the Block of disks


 PERFORMANCE ORDER

1. Disconnect the transmission case from the case the hydrotransformer.
2. Remove couplings of K1, K2 and K3.
3. Take a lock ring (84b) from an internal support of coupling K1 (84) and remove a gear wheel (84a) (see сопр. illustration).
4. Remove the conducting shaft with coupling of K2 (100).
5. Remove the needle persistent bearing (85).
6. Remove a lock ring (106) from an external support of coupling K2.
7. Remove the block of disks (105).
8. Remove a disk spring (107).
9. Establish a stripper (076) on a spring clamp (103) and press on it until the lock ring (104) is not released.
10. Remove a lock ring (104).
11. Remove a disk spring (102) and take the piston (101) from an external support.

Assembly

Check of a gap between a lock ring (90) and an external disk (89c)




100a — the External support of coupling K2
101 — the Piston
105a — the External disk 1.8 mm thick
105b — the External disk thickness 3.5 mm thick/new is 2.8 mm
105c — the External disk 4.0 mm thick

105d — Frictional disks
106 — the Lock ring
107 — the Disk spring
L — the Gap


Assembly is carried out as it should be, the return to dismantling. Check a gap between a lock ring (106) and an external disk (105c). The size of gaps in coupling of K2 is specified below in the table. In case of need adjust a gap by selection of a lock ring (106) of the required thickness. Rings 2.3, 2.6, 2.9, 3.2, 3.5 and 3.8 mm thick are issued.











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