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 a multidisk brake of B1

Dismantling

Design of a multidisk brake of B1

6b — the External support of a brake B1
6c — the Piston
6d — the Return disk spring of the piston
6f — the Disk spring of the block of disks

6g — the Block of gear wheels
6e, 6h — Lock rings
073 — the Stripper
A — the Oil channel of a brake B1


 PERFORMANCE ORDER

1. Remove a lock ring (6h).
2. Remove the block of disks (6g) and a disk spring (6f) from an external support.
3. Establish a stripper (073) on a disk spring (6d) and squeeze it until the groove for a lock ring is not released.
4. Remove a lock ring (6e).
5. Remove the piston (6c) from an external support, carefully giving air to an opening (A).

Assembly

 PERFORMANCE ORDER

1. Install the piston (6c) on an external support.
2. Establish a disk spring (6d).
3. Establish a stripper (073) on a disk spring (6d) and squeeze it until the lock ring 6e is not established in a groove.
4. Insert a lock ring (6e).

B1 brake section

6b — the External support of a brake B1
6c — the Piston
6f — the Disk spring
6h — the Lock ring
69 — Frictional disks

70a — the External disk 1.8 mm thick
70b — the External disk a disk of 2.8 mm 3.5 mm thick/new
70c — the External disk 4.0 mm thick
L — the Gap


 PERFORMANCE ORDER

1. Insert a disk spring (6f) and the block of disks (96g) on an external support and measure B1 gap. Insert B1 brake disks together in the order presented on an illustration, and establish them in turn.
2. Install a press (078) on an external drive (70c).
3. Squeeze the block of disks against the stop (the otmetochny ring - a small arrow will not seem yet).
4. Measure a gap of "L" between a lock ring (6h) and an external disk (70c) in three points. The size of gaps in a multidisk brake of B1 is specified below in the table.

In case of need adjust a gap by a selection of a lock ring (6h) of the required thickness. Lock rings 2.6, 2.9, 3.2, 3.5, 3.8 and 4.1 mm thick are issued.

Establish the picked-up ring.

The size of gaps in a multidisk brake of B1

Disk

Size of a gap, mm

4
1.90
2.30
5
2.00
2.40
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