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 multidisk brakes of B2, B3 and gear wheel of blocking of transmission in situation "P"

Dismantling

Multidisk brakes of B2, B3 and gear wheel of blocking in situation "P"

2 — the transmission Case
11 — Bolts
14 — the Multidisk brake of B2
15 — a blocking Gear wheel in situation "P"

133 — the Multidisk brake of B3
133a — the Lock ring
133b — Spring laying


 PERFORMANCE ORDER

1. Remove the transmission from the hydrotransformer.
2. Remove a multidisk brake of B3 (133) and spring laying (133b), having taken out a lock ring (133a) from the transmission case.
3. Turn off bolts (11).
4. Take a multidisk brake of B2 (14) from the transmission case.
5. Remove a blocking gear wheel in situation "P" (15).

Assembly

Check of a gap of "L" in a multidisk brake of B3

2 — the transmission Case (an external support of a brake B3)
14a — the Piston
133a — the External disk 6.5 mm thick

133b, 133c — External disks 1.8 mm thick
133d — the Disk spring
133e — Frictional disks


Assembly is carried out as it should be, the return to dismantling.

Check and measure a gap in a multidisk brake of B3. The nominal size of a gap "L" in a multidisk brake of B3 lies within the range of 1.0 - 1.4 mm. Establish B3 brake disks together in the order presented on сопр. illustrations, also insert them in turn, measure a gap of "L" between a lock ring (133f) and an external disk (133a) in three points, - during measurement the lock ring (133f) has to concern the top holder of the bearing in a groove of an external support of a brake (2).

In case of need adjust a gap by selection of lock rings. Lock rings 3.2, 3.5, 3.8, 4.1, 4.4 and 4.7 mm thick are issued.