With a relatively small amount of refrigerant used in the freezer, the oil in the compressor will absorb a major portion of it when the freezer has been inoperative for a considerable length of time. When opening the system, use care to prevent the oil from blowing out with the refrigerant.
When replacing a compressor on a freezer that is in operation, disconnect the service cord from the electrical outlet. Allow the low side to warm up to room temperature before removing the compressor. Placing an electric lamp inside the cabinet will help raise the temperature.
The procedure for replacement of the freezer compressor is the same as that for the refrigerator compressor.