Re: What does the freight/commute switch do on an SDP-45
Author: OPRRMS
Date: 08-03-2013 - 17:24
RR Gary Wrote:
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> Change the transition setup one step higher for
> smoother starts from standing stop when using
> passenger car makeup.
> I only seen this on a couple of the SP engines
> during my 40+ years in engine service.
It was a modification made to all 10 SDP45s when they entered commute service. There was a toggle switch inside the electrical cabinet marked "COM / FRT-PASS" which was to be placed in the appropriate position.