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I am trying to wire my Bascule Bridge 313. See Pics. I keep blowing 10 amp fuse when I attach wire 14 to accessory power, 15 v, and wire 15 to common ground. No other wires connected at this point. Bridge is sitting loose, separate from contact with tracks or track power. Any ideas?

Bascule bridge wiring diagram

Top view BB control box

Bascule Bridge back view

BB front view

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Images (4)
  • Bascule bridge wiring diagram: Wire numbers
  • Top view BB control box: looking down into control box
  • Bascule Bridge back view: back view
  • BB front view: front view
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Try Hooking a OHM meter across wires you numbered 14 and 15 on the bridge and see if you see a dead short 0 ohm or 1 or 2 ohms, if you detect a short the PC board inside the house might have a short in it! also smell the house board with your nose and see if it smell like something burning up! have you ever tried the bridge before, did it work or not? get back to me and tell me what you found out.

Alan

Wire 14 and wire 15 as you show are both positive leads. Wire 14 goes to center rail and wire 15 goes to center rail of U channel. If you want to skip all that block stuff on the track with the U channel don't use 14 and 15. OK looks like hook wire 10 to positive terminal and wire 11 to negative terminal. Then hook a switch to wire  12 and 13 .

Last edited by Gweedo
Originally Posted by Quizshow904:

I had hooked 14 to grd and 15 to hot so I probably shorted somewhere on the board. Is there some way to bypass the board if I want to just use a switch to raise and lower the bridge??

probably..  What about a momentary double pole  double throw  toggle switch wired like an "HO" reversing switch connected directly to the  Can motor(I'm guessing it has a can motor?) You'd have to find a dc power supply.   Or you could also use a DPDT center off toggle .(wired like an HO reversing switch)

That's such a focal point of a layout, I'd replace the board to preserve its automatic up/down function and automatic track power on/off switch to the isolated track on the bridge approaches. 

 

As Gregg mentioned, the motor in the bridge is likely DC powered, so you'd need to be able to reverse the polarity at the motor to reverse its direction up or down if you don't want to replace the board.

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
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