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Air Tank Draining, Alcohol Evaporators & Dryers

What maintenance does an alcohol evaporator require in winter use?

  • A.It never needs checking once installed
  • B.It should be checked regularly and kept filled with the approved alcohol as directed
  • C.It should be filled with water in cold weather
  • D.It should be emptied before every trip
Correct answer

B. It should be checked regularly and kept filled with the approved alcohol as directed

Why

An empty evaporator provides no protection, so its level belongs on the cold-weather inspection routine. Only the product approved for the system should be used, following the maker's instructions.

Manual topic: Air Brakes - Alcohol Evaporators · From the Air Brakes practice bank (AB-220).

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