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 multidisk brake В2

Dismantling

Dismantling and assembly of multidisk brake В2

14a — the External support of brake В2 or the B3 piston
14b-d — Sealing rings of brake В3
27 — the Piston of brake В2
28 — the Directing ring of the piston
28a-b — Sealing rings on a directing ring of the piston
29, 134b — Disk springs

30 — the Spring plate
31, 134a — Lock rings
32 — Directing the piston of brake В2 and В3
32a — the Sealing ring
134 — the Block of disks


Dismantling and assembly of multidisk brake В2

31 — the Lock ring
074 — the Stripper


 PERFORMANCE ORDER

1. Remove a lock ring (134a).
2. Remove the block of disks of brake В2 (134) and a disk spring (134b) from an external support of brake В2.
3. Establish a stripper (074) on a disk spring (29) and compress it until the groove for a lock ring will not be released.
4. Remove a lock ring (31).
5. Remove a spring plate (30) and a disk spring (29).

Dismantling and assembly of multidisk brake В2

27 — the Piston
28 — the Directing ring of the piston
137 — the Valve


 PERFORMANCE ORDER

1. Disconnect directing ring (28) pistons and the piston of brake В2 (27) from the B3 piston (14a), having submitted the compressed air to an opening (D).
2. Vypressuyte a directing ring (28) from the B2 piston (27).

Dismantling and assembly of multidisk brake В2

A — the Oil channel of the B3 piston
In — the Oil channel of the B2 piston from a reverse side
With — the Oil channel of coupling К3
D — the Oil channel of the B2 piston from gear shifting

Remove directing (32) from the B3 piston (14a), having submitted the compressed air to an opening (A).

Assembly

Assembly directing the piston and an external support of multidisk brake В2

2 — the transmission Case
14a — the External support of brake В2, (B3 piston)
32 — Directing the piston


 PERFORMANCE ORDER

1. Establish directing (32) and the B3 piston (14a) in the correct situation. For this purpose, insert directing (32) into the case of transmission (2) and tighten. Press an external support of brake В2 (14a) against the stop in directing (32). Bore on shlitsa or cut on an external support of brake В2 (14a) should be directed down (arrow).
2. Insert the piston of brake В2 (27) into the piston of brake В3 (14a). The rounded-off ends of sealing rings (14c), (28a) and (28b) should be directed outside Rounded-off end of a sealing ring (14d) should be directed in inside.
3. Insert directing ring (28) pistons. The valve (137) in a directing ring of the piston should be from above.
4. Insert a disk spring (29) and a spring plate (30).
5. Establish a stripper (074) on a disk spring (29) and compress it until the groove for a lock ring will not be released.
6. Insert a lock ring (31).
7. Insert a disk spring (134b) and the block of disks (134) on an external support of brake В2.

Cut of brake В1

14a — the External support of brake В2
27 — the B2 Piston
134a — the External disk (thickness of 6.5 mm)
134b — the External disk (thickness of 1.8 mm)
134c — the External disk (thickness of 1.8 mm)

134d — Frictional disks
134e — the Disk spring
144a — the Lock ring
L — the Gap


 PERFORMANCE ORDER

1. Establish disks of brake В3 В3вместе in an order presented on an accompanying illustration and insert them in turn.
2. Establish a press (078) on an external disk (70c).
3. Compress the block of disks by means of a press against the stop while the otmetochny ring will not be visible (a small arrow).
4. Measure a gap of "L" in three points between a lock ring (144a) and an external disk (134a). Size of gaps in a multidisk brake (82) are provided below in the table.
5. In case of need adjust a gap by a selection of a lock ring (144a) the demanded thickness. Rings in thickness 2.9, 3.2, 3.5, 3.8 and 4.1 mm are issued.
6. Establish a lock ring (134a).

Size of gaps in multidisk brake В2

Disk

Size of a gap, mm

4
1.90
2.30
5
2.00
2.40