Guidelines

SUCTION ACCUMULATOR/DRIER REPLACEMENT GUIDELINES

NOTE: Replacement of the suction accumulator/drier is necessary anytime a major component of the refrigerant system is replaced. A major component includes condenser, compressor, evaporator core, or a refrigerant hose/line. An orifice tube or O-ring is not considered a major component but the orifice tube should be replaced whenever the compressor is replaced for lack of performance.

In addition to the preceding condition, the accumulator/drier should also be replaced if one of the following conditions exist:
^ The accumulator/drier is perforated.
^ The refrigerant system has been opened to the atmosphere for a period of time longer than required to make a minor repair.
^ There is evidence of moisture in the system such as internal corrosion of metal refrigerant lines or the refrigerant oil is thick and dark.

NOTE: The compressor oil from vehicles equipped with an FX-15 compressor may have a dark color while maintaining a normal oil viscosity. This is normal for this compressor because carbon from the compressor piston rings may discolor the oil.

When replacing the suction accumulator/drier, the procedure given here must be followed to ensure that the total oil charge in the system is correct after the new accumulator/drier is installed.






1. Drain the oil from the removed accumulator/drier into a suitable measuring container. It may be necessary to drill one or two 1/2 inch holes in the bottom of the old accumulator/drier to ensure that all the oil has drained out.
2. Add the same amount of clean new refrigerant oil plus two fluid ounces to the new accumulator/drier. Use only the oil specified for the specific vehicle being serviced.