Checking parking brake

There must be no braking effect when the 1st tooth is engaged. The differential of the wheel circumferential forces (left/right wheel) must deviate by max. 30 % from the higher value (measured on the roller dynamometer). Make a readjustment in event of larger deviations in wheel circumferential force.

It must be possible to brake with locked wheels with the handbrake.

The hand/parking brake must be readjusted if the actuating travel exceeds 10 teeth.

For subsequent procedure, refer to 34 41 006 ADJUSTING PARKING BRAKE .