14 years ago
Today, my Clausing 12x37 clone metal lathe has stopped turning off with the
lever switch on the apron. I can switch
from forward to neutral to reverse and hear relays at the front lever switch
work each time but it keeps running
forward. If I want to stop it I have to hit the emergency button. This is at
least aggravating. But, I can get stuff
done as long as I don't need it to run backwards.
My problem right now is I'm all set up to run backwards for a threading
operation that I don't feel comfortable running
forward. The lathe will only go forward and starts right up with the apron
lever in the neutral position when the start
button is pressed. It still will not start in the forward and reverse apron
lever position, as it's not supposed to.
But if it's in the apron neutral position it will start running forward when the
start button is pushed. Cutting power
to the lathe does not effect this behavior when reconnected.
There are several multi wire relays in the panel box on the back and I suspect
one of them is the problem, or the switch
in the front controlled by the apron lever. The motor is 220 single phase.
It has happened before and not really been a problem. The next time I used it
it would act normally for a while. And,
maybe I can let the thing cool down and get these threads cut later tonight or
tomorrow. But, I need to eventually fix
I do not know how to diagnose how to fix this. Any suggestions on what I should