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I got a used williams unit and I popped the shell. The leads to the reverse board were rubbing on the flywheel. My question, the reverse board was mounted using the hole on the left which is surrounded by a silver coating. Can I use the adjacent hole (the right hole) to mount which would move the board away from the motor.

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Last edited by PRRick
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Normally the reversing board is the one mounted flat.  Makes me wonder what you have, two reversing boards?  Or does one do something else?  Anyone know?

I've seen many Williams reverse boards mounted vertically, they use a small "L" shaped bracket to attach to the mounting hole and then the bracket connects to the frame.

The other board is a sound board, I believe just a horn.

Last edited by gunrunnerjohn

Again, to back up the original question:

@PRRick posted:

My question, the reverse board was mounted using the hole on the left which is surrounded by a silver coating. Can I use the adjacent hole (the right hole) to mount which would move the board away from the motor.

Since the new modern boards of Williams are somewhat similar- 2 rectifiers, 2 relays, much of the circuit is the same or very close.

This URL is not liked by the forum software so I used a short link URL.

https://www.bachmanntrains.com...iamsReverseBoardInst(later).pdf

3: If not using bracket go to next step. Place plastic washer onto long bolt. Insert bolt into hole 4 or 5 (Figure 1) on
the component side of the circuit board



Again, either hole is considered perfectly acceptable.

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Last edited by Vernon Barry

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