TMC 1000 from Light Machines

Hi my name is Aaron, I just started teaching a Machine shop class in a high school. We have a TMC 1000 that I have been trying to get to run. I can get a program in and sent to the machine and the Machine will go threw the motions of the program but the spindle will not turn on. I Noticed there are some bare wires hanging by the front of the Mill that I believe are supposed to hook up to the plexiglass surround. Would this be a safety Feature that would not make the spindle turn on?
If so is there a way to over ride it, or somewhere to find the right part again to replace it?
Thanks,
Aaron

Did you get your TMC 1000 running? Do you have the manual or any specs on this machine? There is one for sale near me, and I'm thinking of buying it.