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  1. tbs

    Force Main Pumping Downhill

    I have an unusual problem. I am designing a 10 MGD Lift Station and 30” DIP Force Main that is pumping downhill. I am a licensed engineer and experienced in pipeline design, but pumps and force main systems are not my specialty. The Details--The proposed 30” DIP epoxy lined force main is...
  2. tbs

    Rewire 3 Phase Mtr 440 t0 220(electrical)

    I recently aquired a couple of 3 phase Yale Chain Hoists. They are wired for 440. I only have 220. When I opened them to switch wiring....there were no extras. 3 wires come directly from the windings. I have a diagram from the company but haven't a clue what to do next.
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