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Re: Questions about operation of EMD radiator fans
Author: Shortline Sammie
Date: 08-11-2013 - 15:47

Switchers, with which I am most familiar, have a large fan in the front of the hood which is belt driven from an extension of the air compressor.

Since this fan (single on later units and dual on NW-2/NW-5 and others) is turning whenever the prime mover is running temperature is controlled by opening and closing the shutters. A temperature probe in the cooling water senses the point at which to operate the shutters and the circuit closure operates a magnet valve which in turn operates an air cylinder attached to the shutter mechanism.

Dick Samuels

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Subject Written By Date/Time (PST)
  Questions about operation of EMD radiator fans BN Oly 08-10-2013 - 23:39
  Re: Questions about operation of EMD radiator fans Butler 08-11-2013 - 07:53
  Re: Questions about operation of EMD radiator fans SP5103 08-11-2013 - 08:49
  Re: Questions about operation of EMD radiator fans Samnberry 08-11-2013 - 12:31
  Re: Questions about operation of EMD radiator fans BN Oly 08-11-2013 - 14:33
  Re: Questions about operation of EMD radiator fans Shortline Sammie 08-11-2013 - 15:47
  Re: Questions about operation of EMD radiator fans George Andrews 08-12-2013 - 13:49


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