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@ Rich Hunn
Author: OPRRMS
Date: 04-25-2014 - 11:37

Rich Hunn Wrote:
-------------------------------------------------------
> Not all the units were done, there were a number
> of them in West Colton service that saw frequent
> road use ie the LA Haulers, the Mountain Local,
> etc. I thought the transition cycle limited them
> to parallel which would make more sense for low
> speed high amp service.

Series. Possibly you're confusing this with the "Commute" switch that was added to the SDP45s to allow then to start in Parallel, similar to Amtrak's SDP40Fs.

All the rebuilt 628s and 630s were wired to forestall transition, but it could be restored if desired. Some units were, but the exact number is unknown. The trouble happened when units with forestalling were allowed to operate above transition speed.

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Subject Written By Date/Time (PST)
  Big SP ALCos of the 70s Steve Sloan, San Jose, CA 04-23-2014 - 07:59
  Re: Big SP ALCos of the 70s SP fan 04-23-2014 - 12:24
  Re: Big SP ALCos of the 70s Steve Sloan, San Jose, CA 04-23-2014 - 14:36
  Re: Big SP ALCos of the 70s Espee99 04-23-2014 - 21:12
  Re: Big SP ALCos of the 70s Tony Johnson 04-23-2014 - 21:53
  Re: Big SP ALCos of the 70s HUTCH 7.62 04-23-2014 - 22:15
  Re: Big SP ALCos of the 70s OPRRMS 04-23-2014 - 22:59
  Re: Big SP ALCos of the 70s Rich Hunn 04-24-2014 - 07:47
  @ Rich Hunn OPRRMS 04-25-2014 - 11:37


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