Park lock function - GF27.10-P-5100GG

TRANSMISSION 722.6 in MODEL 463 as of 1.6.99 

Location 

The parking lock gear (4) is located on the output shaft in the rear section of the transmission housing.

Task 

In addition to the parking brake, to secure the vehicle mechanically to prevent it from rolling away.

Design 

The parking brake mechanism consists of the parking lock gear (4), the parking lock pawl (43), taper (42) with spring (41) and guide bushing (40). The parking lock interlock is operated by the locking pawl (39) and connecting rod (37) via the detent plate (38).

Function 

In selection lever position P the taper (42) slides between the parking lock pawl (43) and guide bushing (40). As a result the parking lock pawl (43) is pressed against the parking lock gear (4). When the vehicle is stationary if the tooth of the parking lock pawl (43) does not engage in a gap in the teeth, but engages on a tooth of the parking lock gear (4), the taper (42) is preloaded by the spring (41) and is in a position ready for operation. If the parking lock gear (4) turns further, the parking lock pawl (43) engages in the next gap in the teeth.

To prevent damage due to misuse, the widths of the gaps in the teeth are designed so that the parking lock pawl (43) only engages when the vehicle is stationary or creeping slowly. If the vehicle rolls faster, the parking lock pawl is deflected by the tooth bevels.

Parking lock interlock, location/task/design/function

GF27.10-P-5101GG