How should you check that your service brakes are working properly?

Question

Accepted Answer

C: Park on level ground, wait until normal air pressure is reached, release the parking brake and move forward slowly at about 5 mph. Then apply the brakes firmly.. The process to verify normal service brake operation is to wait for normal operating air pressure and then release the parking brake. Move forward to about five miles per hour and then firmly apply the service brakes.

How should you check that your service brakes are working properly?

West Virginia CDL Air Brakes Test Info