![<?echo $_SERVER['SERVER_NAME'];?>](/template/twentyseventeen/skin/images/header.jpg)
Symptoms: a liberation of CA1090 car engine when the gas cylinder. Brake valve does not work, the exhaust port at the leak, and the higher the pressure, the more serious leaks, and work all good. Maintenance process: Liberation CA1090-type car is used in tandem dual-chamber piston brake valve. According to the fault phenomenon, the first suspicion is that the seal of the rubber brake seals are not strict, so the brake valve is decomposed and checked, no obvious problems are found, and the equipment is loaded after maintenance, the fault still exists. Second, a careful analysis of the car brake system conditions, although the car did not add the trailer, but the trailer brake valve is mounted on the main car, and with the brake valve work together, by the trailer brake valve structure and working principle can be seen , If the trailer brake valve leaks, the leak can be discharged from the brake valve exhaust port through the control pipe, causing the brake valve leaks illusion. In order to prove that the analysis is correct or not, remove the trachea brake valve and brake valve connected to the trachea, the results of the trailer brake valve indeed leaks, then the valve decomposition inspection found that the valve chamber diaphragm locking screw Loose, the core rod balance hole blocked, the upper and lower chamber O-ring aging, after maintenance, replacement, troubleshooting. Failure Analysis: Trailer valve stem balance hole blocked, the brake valve does not work, the trailer brake valve on the air chamber leakage of compressed air can not be directly discharged through the brake exhaust valve through the vent, when Brake valve work, vent closed, brake system works well.