Shopsmith Forums

Greetings JPG, It’s been awhile since I joined the forum and posted re: my “new”…. “free”…. MK VII, and it’s motor issues. Motor fixed. I am in the process of rebuilding the quill, noticed the shims … thought WTH? So I looked you up again. I see you had the same experience! However I am not sure I a...

I cleaned the contacts on the old start switch and the motor runs perfectly, forward and reverse, (when I reverse the red and white with red tracer connections). The start switch operates silently. The motor also ran perfectly with the Supco universal relay. JPG, Your original diagnosis that it was ...

Yep..

Yep..

The motor runs, clockwise rotation of shaft. Only ran for a few seconds.

I can confirm the wire routing is as described. However I can also confirm there are difference in the wire colors from the relay to the switch. From relay terminal 2 to switch terminal 2: SOLID BLACK, LABELED WITH WHITE UNDERLINED "2" From relay terminal 5 to switch terminal 5: SOLID BLAC...

JPG
Thanks for the quick response! It will be a couple of day before I can try this. I will let you know how it goes

Thanks lahola and jpg. BTW, I measured my spacer at .89 inches slightly more than 7/8th. JPGs comment made me curious, the contacts in the SUPCO are not nearly as robust. So yes I will keep the old relay However it does have a auto disconnect and auto reset to protect those old start windings. We wi...

Thanks JPG Yes I was referring to the retaining ring in the picture. Thanks for the explanation I did not understand that. It certainly beats replacing the sheave. Thanks for the advice on the switch. Continuity checked out, although I understand that does not mean there is not a problem. Good idea,...

I am a new member, and arguably the owner of the best model of ShopSmith .. a free one! My Mk VII is also humming instead of running, and I am currently in the process of replacing the bearings, replacing all of the leads because of severely cracked insulation, and replacing the external start switc...