RailPro User Group

RailPro => Finished RailPro Installation Examples => Topic started by: JRad on March 11, 2023, 02:44:48 PM

Title: Large Scale Bachmann 55 Ton Shay wiring plan for DC or DCC power
Post by: JRad on March 11, 2023, 02:44:48 PM

I sold the locomotive before I got to installing a LM, but did this up for the buyer. Battery power would be very similar after isolating track pick-ups and repurposing the Railway L&R wires from tender to carry the battery power to the main board.

(https://lsc.cvsry.com/Post2023/RailProBachmann3TruckShay.jpg)

Here is the same in PDF if you prefer: https://lsc.cvsry.com/Post2023/RailProBachmann3TruckShay.pdf (https://lsc.cvsry.com/Post2023/RailProBachmann3TruckShay.pdf)

Title: Re: Large Scale Bachmann 55 Ton Shay wiring plan for DC or DCC power
Post by: JRad on March 13, 2023, 06:08:39 PM

I had some interest in how the adapter was made so I wrote this up and took some pics.

When I was testing the loco with RailPro I did not want to cut off the 6 Pin plug in order to confirm operation of the circuits that it interrupts. I looked around for the mating socket, but could only find it in PC board mount. I figured if I was going to need to solder wires anyway, I might as well just make my own mate.

I stared with some header pins I picked up from Amazon for my servo driven switch project. The pins are spaced identical to the Bachmann plug and they can be cut to the needed number of pins…
(https://lsc.cvsry.com/Post2023/3TkShay04.jpg)

I had some 4 conductor ribbon cable left over from my RGBWW lighting work that got soldered to the pins. I needed 6 wires so two more were added…
(https://lsc.cvsry.com/Post2023/3TkShay05.jpg)

To protect from shorts, a few layers of heat shrink finish it off,. The white dot is for polarity reference…
(https://lsc.cvsry.com/Post2023/3TkShay06.jpg)

Electrically, it does this. Adapter on left, Bachmann plug on right…
(https://lsc.cvsry.com/Post2023/3TkShay07.jpg)

Title: Re: Large Scale Bachmann 55 Ton Shay wiring plan for DC or DCC power
Post by: rick on April 01, 2023, 07:04:23 PM

Very helpful.  Thak you.

Title: Re: Large Scale Bachmann 55 Ton Shay wiring plan for DC or DCC power
Post by: Dodgezilla04 on April 01, 2023, 07:11:52 PM

Nice write up, does anyone know if the climax is wired the same way as the shay?