Mercedes S-Class W-140

In 1991-1999 editions

Repair and enterprise of the car



Mercedes S-Class
+ Mercedes Benz cars of the class S (W-140)
+ operation manual
+ Routine maintenance
+ motor
+ cooling systems, heating
+ systems of power supply and edition
+ electric equipment of the motor
+ Gear shifting boxes
- awtomatitscheckaja transmission
   Specifications
   Search of defects - the general information
   + Automatic transmission 722.5
   - Automatic transmission 722.6
      Removal and the device of the electro-hydraulic AT control unit (transmission it is defined)
      Discussion and installation of the electro-hydraulic control unit
      Discussion and installation of a disk of gear shifting
      Discussion and installation of a body of transmission and hydro-transformer
      Discussion and installation of Mehrscheibenbremsen of B2, B3 and gear wheel of blocking of transmission in situation "P"
      Discussion and installation of a back empty wave with for muftoj of the free movement
      Removal and B1 Mehrscheibenbremse device and fat pump
      Discussion and installation of the fat pump
      Discussion and installation of Mehrscheibenbremse of B1
      Discussion and installation of Mehrscheibenbremse of B2
      Discussion and installation of a wave of transfer with it is central also for from blocks of planetary gear wheels
      Removal and K1, K2 and K3 Mehrscheibenkupplungen device
      Discussion and installation of the K1 connection
      Discussion and installation of a key wave with the K2 connection and forward block of planetary gear wheels
      Discussion and installation of the K3 connection
      Removal and the device of the mechanism of blocking of transmission in situation "P"
      Removal and device of the Selektors lever of gear shifting
+ connection
+ brake system
+ Aufhängung and management
+ body
+ electric onboard equipment



Discussion and installation of Mehrscheibenbremse of B2

Discussion

Discussion and installation of Mehrscheibenbremse of B2

14a — the External support of a brake B2 or W3 pistons
14b-d — Uplotnitelnyje of a ring of a brake B3
27 — B2 brake piston
28 — the Directing piston ring
28a-b — Uplotnitelnyje of a ring on the judging piston ring
29, 134b — feathers of glasses

30 — the Rise-strong disk
31, 134a — blocking rings
32 — Directing to the piston of a brake of B2 and B3
32a — Uplotnitelnoje a ring
134 — the Disks block


Discussion and installation of Mehrscheibenbremse of B2

31 — a blocking ring
074 — tiskalshchik


 EXECUTION ORDER

1. Accept a blocking ring (134a).
2. Accept the Disks block of a brake B2 (134) and a feather of glasses (134b) from an external support of a brake B2.
3. Establish a tiskalshchik (074) on a feather of glasses (29) and compress them until the fold is not released for a blocking ring.
4. Accept a blocking ring (31).
5. Accept rise - a strong disk (30) and a feather of glasses (29).

Discussion and installation of Mehrscheibenbremse of B2

27 — the piston
28 — the Directing piston ring
137 — the gate


 EXECUTION ORDER

1. Exclude the piston and the piston of a brake B2 (27) judging a ring (28) from the W3 piston (14a) which serves compressed air in opening (D).
2. Wypressujte the judging ring (28) from the W2 (27) piston.

Discussion and installation of Mehrscheibenbremse of B2

A — the Fat channel of the W3 piston
In — the Fat channel of the W2 piston from a reverse side
With — the Fat channel of the K3 connection
D — the Fat channel of the W2 piston from gear shifting

Be lowered directing (32) from the W3 piston (14a) which serves compressed air in opening (A).

Installation

Directing installation the piston and the external B2 Mehrscheibenbremse support

2 — a transmission body
14a — the External support of a brake B2, (W3 pistons)
32 — Directing to the piston


 EXECUTION ORDER

1. Establish sending (32) and W3 pistons (14a) to the correct situation. For this purpose, you establish sending (32) to a body of transmission (2) and you tighten. An external support of a brake B2 (14a) before blow in sending to Sapressujte (32). Wytotschka on an external support of a brake B2 (14a) have to be directed to schlizach or a part (arrows) down.
2. Install the piston of a brake B2 (27) in B3 brake piston (14a). sakruglennyje the ends of uplotnitelnych of rings (14c), (28a) and (28b) have to be directed outside of Sakruglennyj the end of uplotnitelnogo of a ring (14d) has to be directed in inside.
3. Establish the judging ring (28) to the piston. The gate (137) in the judging ring of the piston has to be above.
4. Establish a feather of glasses (29) and rise - a strong disk (30).
5. Establish a tiskalshchik (074) on a feather of glasses (29) and compress them until the fold is not released for a blocking ring.
6. Establish a blocking ring (31).
7. Establish a feather of glasses (134b) and the Disks (134) block on an external support of a brake B2.

B1 brake section

14a — the External support of a brake B2
27 — the W2 piston
134a — External Disk (thickness of 6.5 mm)
134b — External Disk (thickness of 1.8 mm)
134c — External Disk (thickness of 1.8 mm)

134d — Reibscheiben
134e — a feather of glasses
144a — a blocking ring
L — freedom of action


 EXECUTION ORDER

1. Establish Disks of a brake B3 V3vmeste as it should be which is presented on the accompanying illustration and establish them in turn.
2. Establish the press (078) on external Disk (70c).
3. Squeeze out the Disks block by means of the press before blow until otmetotschnoje a ring (which will be noticeable little shooters) together.
4. Measure freedom of action of "L" in 3 points between a blocking ring (144a) and external Disk (134a). The size of freedom of action in Mehrscheibenbremse (82) nizheperechislena in the table.
5. As a last resort regulate freedom of action by means of the choice of a blocking ring (144a) to the necessary thickness. Rings of thickness of 2.9, 3.2, 3.5, 3.8 and 4.1 mm are issued.
6. Establish a blocking ring (134a).

The size of freedom of action in Mehrscheibenbremse B2

Disk

Size of freedom of action, millimeter

4
1.90
2.30
5
2.00
2.40