Inspection/Rejection Criteria
20.03 Parking Brake.The inspection of the parking brake (auxiliary or holding) applies only to all motor vehicles beginning with the model year 1960. This does not include motorcycles, motor-driven cycles, mopeds, trailers, semitrailers, pole trailers, and mobile homes.
Some types of parking brake may be actuated by foot or hand lever.
The parking brake may be assisted by the service brakes or other source of power, provided that failure of the service brake actuating system or other power assisting mechanism will not prevent the parking brakes from being applied. The parking brakes should be so designed that when once applied, they shall remain applied - despite exhaustion of any source of energy or leakage of any kind. If the means of applying the parking brakes and the service brakes are connected in any way, they shall be so constructed that failure of any one part shall not leave the vehicle without operative brakes. Brake lock systems will not meet the parking brake requirement.
1. Inspection Procedure. On a motor vehicle that has the automatic parking brake release when the transmission is placed in gear, the parking brake should be held down with the foot and the engine accelerated enough with the vehicle in gear to determine if it is working properly.
2. Inspect Parking Brake for and reject if:
a. Motor vehicle is not equipped with a parking brake.
b. Operating mechanism, when fully applied, does not hold the vehicle.
c. Actuating mechanism is not fully released when the release control is operated.
d. Any mechanical parts are missing, broken, badly worn, or not operating properly.
e. Pull cables are badly worn, stretched, frayed, or not operating freely.
f. Parking brake will not hold the vehicle in place when, with the engine running, the vehicle is placed in forward gear and the engine is accelerated enough to cause a pull on the braking mechanism.