How to release the parking brake when the air supply is cut off?

1 Answers
JasmineLynn
07/28/25 4:10pm
Release the brake mechanically. There is a nut and screw on the sub-pump. Under normal circumstances, the screw is retracted inside. Use a wrench to turn the nut. Pull the screw completely out to release the brake. If the rear brake pump and electronic handbrake are integrated, this situation may indicate a damaged handbrake motor. Cover the pipe opening with copper sheet and then tighten the joint to release the air cut-off brake lock.
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