You say you are powering it with the NCE power cab? If that is the case the power cab without any additional booster is only 2 amps. The three truck shay has three motor blocks and is probably drawing more than 2 amps when the motors try to turn. My guess is that is why everything works except the motion.
Steve

You can find more reference material under the Large Scale section of the list at this link.
http://www.bachmanntrains.com/home-usa/references.php
Steve

Hi Rusty, I checked the reference page and found the one sheet about the electronics board. Looks like there is a switch for direction and OFF in the middle right of the sheet.Here is the link.
http://www.bachmanntrains.com/home-usa/dwg/dwgs/LS_Peter_Witt_Streetcar_Electronics.pdf
Steve

I just checked my manual for my loco of the same vintage and there is no switch for the head/rear lights, only smoke. The power comes from the main circuit board embedded in the loco shell. They are suppose to be directional. Perhaps the directional diodes were put in backwards or the light/led are defective. Do either of the lights (head or rear) work?

Steve

  I don't know if this was posted before but I just read on Garden Railways site that "Barry Olsen, the proprietor, is retiring after 20 years". I am happy for Barry (glad some folks still get to retire) but sad to hear this because I am an owner of a connie 2-8-0 that I was hoping to someday put one of Barry's drive systems in. Lately it seems the whole large scale community is falling apart.

   Steve

Retro new trucks to old Climax idea I think would be great. I 3rd this request!

Steve

Hi all, I just wanted to introduce my self. My name is Steve and I am in the process of building my outdoor garden railroad. I started Last year by pouring  four tons of concrete for road bed. This year I have brought in twenty yards of loam and will need about  thirty more. I have planted twenty-three dwarf Alberta Spruce trees, a pine and Japanese maple. Due to heat and money (lack of) I will probably take a break until late August to continue the build. I have a Bachmann Connie and a Bachmann Climax, both of which I love. I will be installing DCC in them over the winter in preparation for running next spring. Well that's about it, thanks for reading.

Steve