Shifting

Shifting







The shift rods are actuated hydraulically and are used to switch the synchronizers and therefore to change gears. They transfer the shifting forces generated in the actuator hydraulics to the actuating elements for synchronization. Each shift rod actuates two synchronizers and two gears. Once the gear is engaged, the shift rod is depressurized. The gear is held securely and without strain by detent in traction/deceleration mode by the form fit of the toothing.

The shift rods are in neutral and the end positions are locked. Shift travel from neutral into the locked engage positions of the gears is nominally the same for all shift rods. The mechanical neutral position is nominally 0 mm shift travel, in accordance with the characteristic of the transmission distance sensors.

Each shift rod has a sensor magnet for recording shift travel via the transmission distance sensors.

Locking

The shift rods in a transmission are locked against each other. In transmission 1, shift rod 3 (1st/3rd gear) is locked against shift rod 2 (5th/7th gear).

In transmission 2, shift rod 1 (4th/6th gear) is locked against shift rod 4 (2nd/reverse gear). Reverse gear is also locked against all forward gears.