R-4 Compressor

1. Remove the accumulator.
2. Drain, measure and record quantity of oil in accumulator.

NOTE: It is not necessary to remove and drain the R-4 compressor because the compressor only retains a minimum quantity of oil.

^ If less than 0.085 kg. (3 ounces), add 0.085 kg. (3 ounces) of new oil to system.
^ If more than 0.085 kg. (3 ounces), add the same amount of new oil as drained.
^ If a new accumulator is installed to system, add 0.057 (2 ounces) additional oil to compensate for that retained by the original accumulator desiccant.