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International Automotive Technicians Network
Re: Ebrake Not Holding/working
Posted to HD/Fleet Forum on 1/7/2019

Correct me if I'm wrong, first the air brake system needs at least 100psi to over come the spring in the brake chamber. So at 120 the system should release, by pulling the brake valve it will dump the air in the system thus applying the brakes, if at this poin... Login to read more.