Measure end play between park pawl gear and grooved ball bearing - AR27.50-P-0600-06A

Test values for gear set

Number	Designation		Transmission 722.6	Transmission 722.9
BE27.50-P-1004-01A	End play between park pawl gear and grooved ball bearing	mm	0.3...0.5	0.20...0.40

Fig 1: Identifying Parallel Support (126 589 04 31 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Determine measurement "a"

Fit parallel support (029) on transmission housing. Using the depth gauge measure from the parallel support (029) to the park pawl gear (15).

Fig 2: Identifying Transmission Housing, Park Pawl Gear
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.

Determine measurement "b"

Using the depth gauge measure from the parallel support (029) to the contact surface of the grooved ball bearing (67) in the transmission housing.

Fig 3: Identifying Parallel Support Transmission Housing, Grooved Ball Bearing
Courtesy of MERCEDES-BENZ OF NORTH AMERICA.
Adjust the axial play "E" by means of shim as per the calculation example.
Example calculation:

Dimension "a" 49.9 mm

Dimension "b" 49.0 mm

Difference 0.9 mm

Axial play "E" - 0.4 mm

Shim 0.5 mm
Install the corresponding shim.
Shims are available in thicknesses of 0.2 to 0.5 mm. The graduation is 0.1 mm.