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Electrical safety for a newbie attempting his first rebuild

Posted: Wed Dec 02, 2015 2:26 pm
by Anomalocaris
Hello all,

Recently acquired an early 80's Mark V (Serial Number 99511) from a dear friend that passed away. It was well loved and maintained during prior use, but has since sat idle for some time so I am planning on doing a through cleaning and rebuild. Before doing any of that I was wondering if there are any electrical safety issues I need to watch out for (aside from the obvious of unplug the darn thing). I know it is a very bad idea to tear into microwaves and some old TVs due to the capacitors. Is there anything similar to that with the Mark V? Any and all advice/help is much appreciated.

Re: Electrical safety for a newbie attempting his first rebuild

Posted: Wed Dec 02, 2015 3:01 pm
by kschwarz20
Nothing like capacitors or anything exotic in the Shopsmith to worry about. Perhaps if you open up the motor (which should generally not be necessary)there might be a capacitor, but even that should be fine (I've restored a couple of 10ERs, but have no opened up the motor on a Mark V). If you want to be completely sure, unplug it for a day before doing the work.

Re: Electrical safety for a newbie attempting his first rebuild

Posted: Wed Dec 02, 2015 3:15 pm
by JPG
If you are not opening up the motor, do not be concerned. Even then there should not be any 'stored' charge.

Re: Electrical safety for a newbie attempting his first rebuild

Posted: Mon Dec 14, 2015 6:15 pm
by Anomalocaris
What if I am opening up the motor?

Re: Electrical safety for a newbie attempting his first rebuild

Posted: Mon Dec 14, 2015 6:33 pm
by ERLover
UNPLUG FROM ELECTRICAL SOURCE. :eek:

Re: Electrical safety for a newbie attempting his first rebuild

Posted: Mon Dec 14, 2015 10:03 pm
by billmayo
Be sure you have a grounded electrical plug with the ground wire connected to the motor or frame. I found a few ground plugs cut off and the motor will still operate. I have gotten shocked a couple times from internal shorts in the motor which I could never correct.