Park pawl component description - GF27.60-P-2010GZ
TRANSMISSION 722.9 in MODEL 164.1 /8, 204.0, 216, 221, 251.0 /1 up to Model Year 8
Location
The park pawl gear and park pawl mechanism are located in the rear part of the transmission housing.
Task
Secures the vehicle mechanically to prevent it from rolling in addition to the parking brake.
Function
In selector lever position "P" the cone moves between the park detent and pilot bushing. This presses the park detent up against the park pawl gear. If the tooth of the park detent does not engage in a tooth space when the vehicle is stationary, but rather touches a tooth of the park pawl gear, the cone is pre-tensioned by the spring and positioned ready for operation. When the park pawl gear turns further, the park detent engages in the next tooth gap.
To prevent damage due to misuse, the intervals between the tooth gaps are such that the park detent can only engage when the vehicle is stationary or crawling at low speed. If the vehicle moves faster, the park detent is deflected by the oblique surfaces of the teeth and cannot engage.