Parking Brake Function Check

Parking Brake Function Check

Note: If deviations are identified during the following check, the parking brake must be adjusted:

Drive vehicle onto chassis dynamometer.
Warm up brakes.
Check handbrake.
0th tooth (handbrake released):
Vehicles with manual transmission: Shift lever in neutral position.
Vehicles with automatic transmission: Selector lever in "N" position.
- Without locking differential ≤ 150 N.
- With locking differential ≤ 200 N (possibly odd display).

1st tooth: No increase in braking force with regard to 0th tooth. Indicator lamp can be lit.
2nd tooth: Indicator lamp must be lit.
3rd tooth: Increase in braking force.
5th tooth: The brake force display must have reached ≥ 400 N.

Checking brake force differential at wheel:
Apply handbrake until a wheel circumferential force (measured on brake test stand) of min. 1000 N is reached.
Max. permitted brake force differential right / left ≤35 % (referred to greater brake value).
It must be possible to brake with locked wheels with the handbrake.