Stuck, that is, the compressor can

Stuck, that is, the compressor can not turn. Refrigerant leakage, or evaporator pipe, POA valve overflow valve, oil separator oil hole plug the coolant oil discharge, the compressor lubrication will not be sufficient, will be stuck, but also the absence of lubricating oil stuck. Clutch slip or v-belt slip, usually due to the compressor jam; At this point need to immediately shut down the compressor clutch power supply. Check the leakage of the system. If there is no leakage, it may be the problem of blocked oil channel to discharge the refrigerant in the system, and replace the relevant valve for cleaning. After reinstalling the system, vacuum, leak, fill the refrigerant oil and fill the refrigerant. Before starting up again, first turn the compressor by hand and let the internal lubrication surface be covered with lubricating oil film before starting, otherwise it is easy to pull the compressor and scrap it.When the compressed time is not used, it will suddenly start, may produce a mild jamming phenomenon. The reason is that when the compressor stops running, the change in ambient temperature will cause the expansion of refrigerant and refrigerant oil, resulting in the outflow of the refrigerant oil on the two smooth contact surfaces. Coupled with the high machining accuracy of the compressor parts, in the two surfaces without lubrication, a long time, the two surfaces will produce corrosion, corrosion, cold welding and other phenomena. And the longer the time, the more serious this phenomenon will be, and eventually develop into a deadlock. The solution is to run the compressor every week or at most two weeks for 2 to 3 minutes. Use the driving disc support of the clutch to make the driving disc drive the shaft in a counterclockwise direction. Once the shaft is loose, it means that the stuck part is loose. Turn it clockwise for several times, then start the engine and compressor for trial operation. After that, the compressor will run smoothly. If the jam is tight, disassemble the compressor. Clean the oil and dirt of the internal parts with gasoline, and then check the surface of the cylinder, shaft and bearing, swash plate and steel boots for good condition and no signs of strain. Finally, spray and wash the dry parts with refrigerant vapor, and install and restore the compressor in reverse sequence. At this time the shaft seal, two end face sealing apron, cylinder pad should be replaced completely. In the installation should also pay attention to clean, the surface should be added with refrigerant oil. Then vacuum, leak detection, oil, refrigerant injection. Before restarting the compressor, turn the drive disk a few times by hand to check the compressor's performance and lubricate the fit before starting.