![]() The proper procedures for inspecting the air brake system are as follows: Test Air Leakage Rate (Static check) For safety purposes, in areas where an incline is present, you will need to use wheel chocks during the air brake check. However, this procedure is designed to see that any safety device operates correctly as air pressure drops from normal to a low air condition. Note any vehicle “pulling” to one side, unusual feel or delayed stopping action.Īir Brake Check (air brake equipped vehicles only)Īir brake safety devices vary. Check the service (foot) brake operation by moving the vehicle forward slowly (about 5 mph) and apply the brake firmly.Check that the warning buzzer and/or light is off.If equipped with a hydraulic brake reserve (backup) system, with the key off, depress the brake pedal and listen for the sound of the reserve system electric motor.The brake pedal should not move (depress) during the five seconds.With the engine running, apply firm pressure to the service (foot) brake pedal and hold for five seconds.Apply parking brake only and make sure it will hold the vehicle by shifting into a lower gear and gently pulling against the brake. ![]() ![]() The following is a list of items and components that must be checked by the driver during the CDL pre trip inspection: brake check.
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