Preliminary Information
Figure 2 - Compressor Components - View:
Service repair procedures to the Compressor Shaft Seal and Pressure Relief Valve and Compressor Switches are considered "MAJOR" SINCE THE REFRIGERATION MUST BE RECOVERED, EVACUATED AND RECHARGED to complete service.
When replacing the shaft seal assembly or pressure relief valve (Fig. 2), even if the compressor remains on the vehicle during the operation, it will be necessary to recover refrigerant. Other than clutch repair procedures, the same holds true for any disassembly of the compressor.
A clean workbench, preferably covered with a sheet of clean paper, orderliness in the work area and a place for all parts being removed and replaced is of great importance, as is the use of the proper, clean service tools.
NOTICE:, Any attempt to use make-shift or inadequate equipment may result in damage and/or improper compressor operation.
All parts required for servicing the internal compressor are protected by a preservation process and packaged in a manner which will eliminate the necessity of cleaning, washing or flushing of the parts. The parts can be used in the internal assembly just as they are removed from the service package. Seals and protective packaging should be left intact until just prior to installation.