Went to a model railroad show Saturday and could not resisit a Bachmann 0n30 Two Truck T Boiler Shay I found at a great price. It looked like a simple RC conversion candidate. After looking at the parts diagram and removing the fuel bunker I was convinced everything would fit well. First I removed the Bachmann circuit board and cut off the three standoffs that supported it. After removing the board all that remained were the two motor leads and the two headlight leads. I unsoldered the leads to the truck pickups and pulled those wires out with the circuit board. I made up a two cell Lipo battery pack with a battery protection circuit and installed it under the fuel bunker. I made up a mount for the DelTang receiver and Pololu 9 volt regulator from card stock attaching the components and mount with RC servo tape. This ensured everything was insulated. The switch is temporary. I have not decided on whether to use a switch or a magnetic reed switch yet. I installed a charge jack under the frame at the rear. Once painted black it will not be very visible and is easily accessed. I have also not connected the LED headlight yet. I will have to add a resistor. It will be wired to be on anytime the power is turned on as a reminder to turn off engine when not in use. I am pleased with the result as the Shay runs great and realistically slow with this set up.
In the right side picture you can see the battery pack wired to the protection circuit board. The two motor leads are visible and attached to the DelTang receiver. The two thin leads at rear are the headlight leads. The two heavier wires coming up from frame are the charge jack leads.
From many years ago, a "converted" Bachmann On30 Shay with 7.4 volt battery and an r/c car board (now looked down at)...
but she's been running for maybe 15 years and still does switching when needed. Woodie
____________________ It doesn't matter if you win or lose, its' how you rig the game.