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Home >> GMC >> 1982 >> Magnavan Automatic Trans, Trans Mfr CD 475/M40 >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> General Servicing >> Component Replacement Cautions >> Component Replacement Cautions >> Before Opening The System

Before Opening The System

Before disconnecting any lines or fittings, the system must be completely discharged; however, if only the compressor is being removed and the compressor is equipped with stem-type service valves (York or Tecumseh), compressor may be isolated without discharging the system.

NOTE: See COMPRESSOR ISOLATION METHOD.
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