AnswerProblem Analysis 1: The pressure value does not reach the specified range, or the throttle valve is tightened tightly; Inspection method: Observe the barometer; Solution: stabilize and adjust the intake air source, the speed control valve can be adjusted normally; Problem Analysis 2: Loosening valve, pipe joints, etc., loose, leak, etc.; Inspection method: Manually check the speed control valve, pipe joints; Solution: If there is damage, replace it, if the lock is bad, then lock the relevant components; Problem Analysis 3: Inhibition of blockage in the movement part of the mechanism Inspection method: Manually push-pull the air-disconnected mechanism to find out; Solution: Clear up the blockage.