5.1. Design and technical characteristics


Design and technical characteristics

Automatic, planetary, the four-speed transmission with the hydrotransformer of torque of Mercedes-Benz


Selector lever

The lever has six provisions:

Indicator

Transmission type
722.402 *
722.112 **

Number of transfers

5

5

5

Models of engines

M 102

M 123, M 110

M 110, M 123

Transfer
Transfer numbers

I transfer

4,25

3,98

3,68

II transfer

2,41

2,39

2,41

III transfer

1,49

1,46

1,44

IV transfer

1,00

1,00

1,00

Backing

5,67

5,47

5,14

* The automatic transmission on release cars after 1980.
** The automatic transmission was issued in two options of transfer numbers.

Characteristic

Value

The operating pressure, type 722.402/722.400, kg/cm

the modulating pressure

2,3/2,9

working pressure

11,5±1,0/13,8±1,0

pressure in the centrifugal regulator

  • at a speed of 30 km/h

1,0/1,0

  • at a speed of 90 km/h

2,5/2,5


Torque hydrotransformer

Characteristic

Value

Diameter of the hydrotransformer, mm

245

Frequency of rotation of the hydrotransformer (when checking) with the blocked brakes, not less, than a rpm

1600 — 1800


Transmission oil

Characteristic

Value

Filling capacity of a case of the transmission, l

  • during the first filling

6,6

  • when replacing oil

5,5

The used oil

ATF

Frequency of replacement

each 60000 km of a run


Are almost always the reasons of malfunctions of automatic transmission low an urovenmasla or the wrong adjustment of the drive of the selector or draft of inclusion of the lowest transfer.

Oil level if it has temperature about 80 °C, has to be about the mark "MAH" in the probe. At a temperature of oil within 20 ° — 30 °C level has to be on the mark "X" over the mark "MIN".

Model

Size "X", mm

200 till 5.83

30

230

230E till 4.83

250 till 8.81

280

280E till 8.81

200 from 6.83

12

230E from 5.83

250 from 9.81

10

280E from 9.81


Moments of an inhaling of the main threaded connections, кгс.м

Connection type

Value

Bolt of fastening of the hydraulic block

0,8

Bolt of fastening of an oil case

0,8

Drain stopper of an oil case and transformer

1,4

Bolt of fastening of the vacuum regulator

0,8

The screw with crosswise shliyets of fastening of an oil filter

0,4

Nut of fastening of a flange of an output shaft

12,0

Bolt of fastening of the back pump

0,8

Bolt of fastening of a forward cover to the forward pump

2,0

Bolt of fastening of the leading flange of the transformer

4,2

Bolt of fastening of the transformer or forward cover to a transmission case

1,3

Bolt of fastening of a back cover to a transmission case

1,3

Nut of fastening of an arm of the centrifugal regulator

0,6

Switch of a starter and light of a backing

0,8

Electromagnetic valve of management of foot gear shifting

2,0

Traffic jams of control nests

1,3

Bolt of fastening of the automatic transmission to the engine block

  • M 10

5,5

  • M 12

6,5

Electromagnetic valve of management of pedal gear shifting

2,0

Traffic jams of control nests

1,3


Details of automatic KP

1 — the torque hydrotransformer
2 — the case of the forward pump
3 — an entrance shaft
4 — forward planetary transfer
5 — an output shaft and reverse planetary gear
6 — the external satellite
7 — a crown gear wheel
8 — a cogwheel of the parking brake
9 — the leading gear wheel of the drive of a speedometer
10 — a flange of an output shaft
11 — a nut of fastening of a flange
12 — bearings
13 — a coupling cup

14 — the clutch drum
15 — a sealing ring
16 — the piston of forward coupling
17 — external clutch plates
18 — internal clutch plates
19 — a lock ring
20 — a drum of back coupling
21 — the piston
22 — a tape brake of forward coupling
23 — a tape brake of back coupling
24 — the coupling drive piston
25 — pushers
26 — the centrifugal regulator