Air Break Practice Test

Results

#1. How should you test the spring brakes?

Apply the spring brakes and try to pull forward a bit.

Release the service brakes and try to pull forward a bit.

Release the spring brakes and try to pull forward a bit.

Apply the service brakes and and try to pull forward a bit.

To test the spring brakes, first remove any wheel chocks. Set the parking (spring) brakes by pulling out the yellow dashboard knob. Then gently apply engine power in low gear. The parking brakes should keep your vehicle from moving.