![]() You put the pry bar in at the clevis pin and pry out.Īnd the pushrod should not come out of the brake chamber more than half to three-quarters of an inch. Get in the cab, release the parking brakes and put your foot over the service brake just in case the chocks don't hold and the vehicle begins to roll away on you then you're ready in the event that that does occur by applying the service brakes and then ensuring that you have more than 90 psi in the system.įor the pry bar method you simply need a pry bar, thus it's called the pry bar method. So you need more than 90 pounds (psi - pounds per square inch) in the system - so safety first! Chock the wheels, as you can see here in the image. ![]() Then release the parking brakes and ensure the pressure in the system is above 90 pounds.īecause you need more than 90 pounds in the system to have those powerful spring brakes that apply the parking brakes completely released. Safety first on both of these methods, regardless of which one you're using, the first steps of that are two chock the wheels on your vehicle. There's two methods that you can use to determine that your air brakes are in fact an adjustment on an air brake equipped vehicle:Ģ) and the other is the applied stroke method. If you're going for a license or you get pulled over by the diesel bear-the DOT, the MTO, the CVSE, or any one of those authorities, they're going to check the brakes on your vehicle and ensure that they are within adjustment.Īnd to determine if they're with an adjustment they're going to use the applied stroke method. Rick with Smart Drive Test talking to you today about how to determine if your air brake system is within adjustment. Illustrations, checklists, & cheat sheets ensure your success
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