Mercedes S-Class W-140

1991-1999 of release

Repair and car operation



Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
- Автоматичеcкая transmission
   Specifications
   Search of malfunctions - the general information
   + Automatic transmission 722.5
   - Automatic transmission 722.6
      Removal and AT electrohydraulic control unit installation (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 В2, В3 and gear wheels of blocking of transmission in the situation "P"
      Dismantling and assembly of a back hollow shaft with the back coupling of a free wheeling
      Removal and installation of multidisk brake В1 and oil pump
      Dismantling and assembly of the oil pump
      Dismantling and assembly of multidisk brake В1
      Dismantling and assembly of multidisk brake В2
      Dismantling and assembly of a target shaft with central and back blocks of planetary gear wheels
      Removal and installation of multidisk couplings К1, К2 and К3
      Dismantling and assembly of coupling К1
      Dismantling and assembly of a leading shaft with coupling К2 and the forward block of planetary gear wheels
      Dismantling and assembly of coupling К3
      Removal and installation of the mechanism of blocking of transmission in the 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



56822268



Dismantling and assembly of coupling К1

Dismantling

Dismantling and assembly of coupling К1

83a — the External support of coupling К1
83b — the Sealing ring
86 — the Piston
86a — the Sealing ring of the piston
86b — the Disk spring
87 — the Spring plate

87a — the Sealing ring of a spring plate
88, 90 — Lock rings
89 — the Block of disks
91 — the Lock ring of the coupling of a free wheeling
92 — the Forward coupling of a free wheeling
A — the Oil channel for coupling К1


 PERFORMANCE ORDER

1. Remove a lock ring (90) from an external support.
2. Remove the block of disks (89) from an external support.
3. Establish a stripper (072) on a spring plate (87) and compress it until the lock ring (88) will not be released.
4. Remove a disk spring (86b) and the piston (86), having submitted to an opening (A) the compressed air.

Assembly

Gap check between a lock ring (90) and an external disk (89c)

83a — the External support of coupling К1
86 — the Piston
86b — the Disk spring
89a — the External disk (thickness of 1.8 mm)
89b — the External disk (thickness of 3.5 mm / new thickness of 2.8 mm)

89c — the External disk (thickness of 4.0 mm)
89d — Frictional disks
90 — the Lock ring
L — the Gap


Assembly is carried out as it should be, the return to dismantling. Check a gap between a lock ring (90) and an external disk (89c). The size of gaps in coupling К1 is specified below in the table. In case of need adjust a gap by selection of a lock ring (90) demanded thickness. Rings in thickness 2.6, 2.9, 3.2, 3.5, 3.8 and 4.1 mm are issued.

Size of gaps in coupling К1

Disk

Size of a gap, mm

3
2.70-3.10
4
3.00-3.40
5
3.30-3.70