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

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TRANSMISSION 722.6/9, 724.2

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

Courtesy of MERCEDES-BENZ USA

Determine dimension "a"

Place parallel gauge (029) on the transmission housing and with the depth gauge, measure from the parallel gauge (029) to the park pawl gear (15).

Fig 2: Measuring Parallel Gauge To Park Pawl Gear
Courtesy of MERCEDES-BENZ USA

Determine dimension "b"
Using the depth gauge, measure the parallel gauge (029) on the contact surface of the grooved ball bearing (67) in the transmission housing.

Fig 3: Measuring Parallel Gauge On Contact Surface Of Grooved Ball Bearing In Transmission Housing
Courtesy of MERCEDES-BENZ USA
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.