Remove/install clutch pack BR, multidisk brake B2 and park pawl gear

AR27.50-D-0782WE

Remove/install clutch pack BR, multidisk brake B2 and park pawl gear

18.07.2019

Transmission

722.9 in model 906

1

Transmission housing

6

B2 multidisk brake

5

Clutch pack BR

6s

Screw

5s

Retaining ring

7

Park pawl gear

5t

Disk spring

Notes on automatic transmission

AH27.19-P-0001-01NKB

 

Remove/install

1

Detach transmission housing (1) from torque converter housing

AR27.50-D-0601WE

2

Remove retaining ring (5s); for this, press together BR clutch pack (5)

AR27.51-D-7229-01WE

 The thickness of the retaining ring (5s) determines the clearance.

 Installation: Measure and adjust clearance of multidisk brake BR.

Clearance of multi-disk brake BR

*BE27.50-N-1004-02B

3

Remove clutch pack BR (5)

 Check disks for scorch marks and wear.

4

Remove disk spring (5t)

 Installation: Insert disk spring (5t) in such a way that the curvature of the inner circumference points toward the multidisk brake B2 (6).

5

Remove screws (6s) and remove B2 multidisk brake (6)

 Installation:
The external plate carrier of the multidisk brake B2 (6) is simultaneously the piston of clutch pack BR (5) and must not tilt over. Before tightening the screws (6s), press outer plate carrier from inside against the parking lock gear (7).
Otherwise the components may be damaged.

 Hold B2 multidisk brake (6) while unscrewing.

 Installation: Replace screws/bolts (6s).

 Bolt, multi-disk brake B2 to transmission housing

*BA27.40-N-1003-01I

If necessary:



Disassemble/assemble multi-disk brake B2

AR27.50-D-0880WE

6

Remove parking lock gear (7) and check for damage; replace if necessary

7

Install in the reverse order

Set values for multi-disk brake

Number

Designation

Transmission 722.9

BE27.50-N-1004-02B

Clearance of multi-disk brake BR

mm

1,00...1,40

 Housing

Number

Designation

Transmission 722.9

BA27.40-N-1003-01I

Bolt, multi-disk brake B2 to transmission housing

Stage 1

Nm

10

Stage 2

°

90