Detach/Attach Torque Converter On Driver - AR27.20-P-0100-01A

TRANSMISSION 722.9 (except 722.93) With diagonal screw connection of the torque converter 

TRANSMISSION 722.9 With angled screw connection of the torque converter 

Courtesy of MERCEDES-BENZ USA

Courtesy of MERCEDES-BENZ USA

Detaching 

To unscrew or screw in do not use an impact wrench or compressed-air tool, otherwise the threaded unions in the driven plate will be damaged.

1. Remove cover (8).
2. Remove bolts (1 to 4 or 1 to 6) of the torque converter from the driven plate.

   Continue turning the engine in the direction of engine rotation using socket on the crankshaft center bolt. If the center bolt is not accessible, continue turning the torque converter using a wide screwdriver.

   Checking 

3. Check driven plate (7) for damage.

   The driven plate (7) must be replaced if the threaded unions (7a) are damaged or loose.

   Attaching 

4. Mount torque converter (9) on driven plate (7).

Replace bolts (1 to 4 or 1 to 6).

Observe tightening sequence, tightening torque and numerical sequence, otherwise the torque converter (9) or the driven plate (7) will be damaged.

Torque converter with 4-x angled threaded connection 

Torque converter with 6-x angled threaded connection 

Fig 1: Torque Converter To Drive Plate Tightening Sequence - Transmission 722.9

Courtesy of MERCEDES-BENZ USA

Tightening sequence	Screw	stage
1	Press the torque converter (9) against the driven plate (7) using a long wedge
2.1	Attach the bolts (1 to 6) and position by hand	Torque converter with 6-x angled threaded connection
2.2	Partially screw in bolts (1 to 4) and position by hand	Torque converter with 4-x angled threaded connection
3.1	Tighten bolts (1, 2) and while tightening press the torque converter (9) against the driven plate (7) with a long wedge	1st stage with torque converter with 6-x angled threaded connection
3.2	Tighten bolts (1) and press the torque converter (9) while tightening up against the driven plate (7) using a long wedge	1st stage with torque converter with 4-x angled threaded connection
4.1	Tighten bolts (3 to 6)	1st stage with torque converter with 6-x angled threaded connection
4.2	Tighten bolts (2 to 4)	1st stage with torque converter with 4-x angled threaded connection
5.1	Tighten bolts (1 to 6)	2nd stage with torque converter with 6-x angled threaded connection
5.2	Tighten bolts (1 to 4)	2nd stage with torque converter with 4-x angled threaded connection
6.1	Tighten bolts (1 to 6)	3rd stage with torque converter with 6-x angled threaded connection
6.2	Tighten bolts (1 to 4)	3rd stage with torque converter with 4-x angled threaded connection