I got an old milling machine and it came with a motor to move the table.. how ever, the motor doesn't work as it should.
I took it apart and it looks like the whole system works on AC... and I really don't feel like poking around while its live, so I took a few pictures and maybe some of you are familiar with this type of systems and can give me a hint
what to check.
The behaviour is following:
When the motor is running for longer then 3-4 seconds, the fuse inside the unit jumps out.
When I turn the motor on for a few seconds I can see and feel that its not running smoth its like 1 of this pager motors with some balance offset, but its not a mechanical problem. when I spin it by hand its perfectly fine and in balance.
Its more like the current flow is interrupted every second turn or something.
Also.. when the motor runs clockwise, it starts every time.. but when I run it CCW it often doesn't even start, it just twitches a bit till the fuse jumps out.
here are some pictures of the system, hope some if you have an idea what could be wrong here.
Thanks!!