Shopsmith Forums

Some time ago Bill Mayo posted a tutorial on how to install a switch to reverse the SS head stock. Does anyone know how I could locate it?
Thanks,
Tom

I hope helps
http://shopsmith.com/ss_forum/search.ph ... shop+smith

I recently did a reverse job. JoshH took Bill's work and expanded on it. It was excellent.

See link: https://www.shopsmith.com/ss_forum/view ... 97#p144297

Also, EverettDavis provided a schematic which, to me, was the only thing missing from the work of Bill Mayo and JoshH. The only thing I would add to Everett's schematic is that my motor has 2 sets of run windings.

See Link: http://www.shopsmith.com/ss_forum/viewt ... 44#p221344

This should be everything you need. Feel free to post or PM me with any questions. - Nick

Here are a few pictures of the switch location I selected. It is out of the way and not likely to get bumped inadvertently. The wire routing inside the head is clear of the quill and quadrant movements.

UncleSnick wrote:I recently did a reverse job. JoshH took Bill's work and expanded on it. It was excellent.

See link: https://www.shopsmith.com/ss_forum/view ... 97#p144297

Also, EverettDavis provided a schematic which, to me, was the only thing missing from the work of Bill Mayo and JoshH. The only thing I would add to Everett's schematic is that my motor has 2 sets of run windings.

See Link: http://www.shopsmith.com/ss_forum/viewt ... 44#p221344

This should be everything you need. Feel free to post or PM me with any questions. - Nick

The purpose of my post at the time was illustration opposed to schematic representation. As it stated in the post "Here is a graphic that may help visualize them in a manner that is helpful for most"

There are two run windings as you have noted. JPG also noted it as well in his response in my post. Here is a revised graphic accordingly. I am very pleased that you are finding it helpful. For the Mark VII family, I recently took yet a different approach in documenting the Motor wiring, again opposed to a schematic per se.

I will post one of those below, and will if folks here desire me to, document other motors in the same manner from a wiring diagram point of view in coming months.

Bill Mayo and JoshH indeed truly did an excellent job in defining and documenting how to reverse the motor, which I have yet to address.

I know that all of us have Bill Mayo and his wife Ann in our thoughts and prayers at this time. Bill is a great man, noble, honorable, generous, and thoughtful.

Again, this is posted for the style of document I might prepare for other models. This is but one of the three types of motors in the Mark VII. I created and added a schematic representation of the external motor start relay within the relay body for helping folks understand the relay circuit. I will do one for the Mark 5 and Mark V motors if it will help folks.

Everett

Schematic drawings and wiring diagrams are both valid aids with differing intent. The schematic is for understanding, the wiring is for (re)assembly.

Rarely do they cross purpose each other.

Do proceed Everett.

I found something strange with the six or so MK VII motors I rebuilt. I found that one run winding (3-4 ohms) was connected in parallel to the start winding (6-8 ohms) and the other run winding (3-4 ohms) was used for the start circuit. During the rebuild, I connected the run windings in parallel and used the start winding to start the motor without an problems. The motors operated OK with either of the above connections. I used a 2 switch setup to replace the MK VII push button switch. Has anyone else measured the run and start windings on any MK VII motors to see if I maybe I got some miswired motors. I never measured the different in output power between the 2 different wired motors.

billmayo wrote:I found something strange with the six or so MK VII motors I rebuilt. I found that one run winding (3-4 ohms) was connected in parallel to the start winding (6-8 ohms) and the other run winding (3-4 ohms) was used for the start circuit. During the rebuild, I connected the run windings in parallel and used the start winding to start the motor without an problems. The motors operated OK with either of the above connections. I used a 2 switch setup to replace the MK VII push button switch. Has anyone else measured the run and start windings on any MK VII motors to see if I maybe I got some miswired motors. I never measured the different in output power between the 2 different wired motors.

Was the windings wire size different as is typical? If so I say miswired.