The watch engineer finds the cargo refrigeration compressor has blown the shaft seal, with the noticeable presence of oil leaking. In this situation, what should be done?

Question

Accepted Answer

shut down the compressor at once and then close the suction and discharge valves

Answer

pump the system down and then isolate the leak by closing the suction and discharge valves

Answer

close the suction valve, pump the compressor down, then shut down the compressor

Answer

tighten the shaft seal packing to reduce leakage, slow the compressor, and operate the expansion valves by hand until repairs can be made

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