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Multiple units shut down
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In the mid 70's after Union pacific initiated the "Fail Free Program" on the DD40Ax's, <br />and then started sandwiching them with the SD40-2H's(Fast Forties). This being in, <br />the configuration of 6900-8000-6900 lash-ups, they initiated another program. It was <br />called the "FUEL SAVER", this was a probably 4 by 4 box mounted on the top of the <br />control stand with a spring loaded rotary switch and knob much like the headlight or <br />heater switch of EMD's. This would allow the engineer to shut trailing units down to <br />idle, when running on flat territory thereby saving fuel.....old technology huh?
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