Nova G3 loosening

neal560sl · Post by **neal560sl** » Mon Sep 01, 2014 7:28 pm

I have had a Power Pro and Nova G3 lathe chuck for about a year and a half now and I am having a lot of trouble getting the chuck to stay tight on the quill shaft. I have read about the pulses from the motor causing this type of problem, but is there any way to stop this?

algale · Post by **algale** » Mon Sep 01, 2014 7:40 pm

neal560sl wrote:I have had a Power Pro and Nova G3 lathe chuck for about a year and a half now and I am having a lot of trouble getting the chuck to stay tight on the quill shaft. I have read about the pulses from the motor causing this type of problem, but is there any way to stop this?

This may or may not be part of your issue, but check to make sure you have the correct adapter to mount the G3 on the Shopsmith. For a while Nova/Shopsmith were providing an adapter that did not have the set screw bored at the correct angle to mate up with the flat on the quill.

A number of us got free replacements from Nova. Here's one of several threads discussing that issue. https://forum.shopsmith.com/viewtopic.php?t=12015&page=4

kenbu · Post by **kenbu** » Tue Sep 02, 2014 6:26 am

Also, be sure the fiber washer is in place under the set screw.

Ken

neal560sl · Post by **neal560sl** » Wed Sep 03, 2014 2:44 pm

I remember seeing that thread about the setscrew not being on a angle. Would you be able to see the angle by just having the long allen wrench in the setscrew? The adapter locking screw does have fiber washer in it and it doesn,t loosen at that junction.

reible · Post by **reible** » Wed Sep 03, 2014 4:02 pm

Yes you can see the angle. It is about 3 degrees.

ALL adapter for shopsmith should have this angle so you can compare against say a saw arbor just to be sure.

Ed

beeg · Post by **beeg** » Wed Sep 03, 2014 4:25 pm

How long have ya had this problem? Do you have the correct adapter?

algale · Post by **algale** » Wed Sep 03, 2014 6:40 pm

Look at this post, which shows the correct and incorrect adapters side by side. http://www.shopsmith.net/forums/showthr ... 015&page=4

The part number on the correct adapter is ISNS. The incorrect adapter is p/n IFNS.

neal560sl · Post by **neal560sl** » Wed Sep 03, 2014 7:09 pm

Thanks guys for your input. I'll have to check this out when I get home. (in Maine right now)