I have a problem with the spindle turning off or not moving at all, i have to rotate the knob, that regulates the spindle speed to computer, several times and it wants to run but it quits. The switch is good, i tested it. So i am wondering if someone has experienced this problem and what it was the solution. i have seem some other post of members that want to change the spindle drive, but their machine is different than this one.

Would anyone explain how this works or give me a general idea of what to look for.

i have close to zero knowledge in electronics but i would like to lean so any help will be so valuable and really appreciated.

By the way the spindle doesnt work on Manual. When i choose the computer, it used to run no problem, but now sometimes it works and quits or it doesnt work at all. i can hear the solenoid engaging but nothings happens.

Thanks in Advance.