newbie with a greenie

[robodad]

This is my first post so forgive me for posting as a new thread, but when I initially(yesterday)posted it on an older thread I didn't get any replies(ah, yee of little patience !).

I have an A-headstock greenie from my dad. Recently it started tripping the breaker, and after cruising this forum and sawdust sessions, I decided I needed to lubricate. The motor and belts were replaced about 10 years ago.

In drill press position.
Motor dropped.
Control sheave removed(and drive belt). Belts in decent shape.
No lubrication holes except on floating sheave(as expected).
Not a lot of sawdust inside. Overall things look pretty good except porkchop which is NOT the subject of this thread.
Poly V-belt (or Gilmer) in place.

After I finished lubrication (I am still in drill press position) I manually turned the main spindle shaft clockwise (imagine it horizontal and you are looking at the sanding disk) and it is smooth.
However, counter clockwise it binds. I know that this is a forbidden movement when the drive belt is in place and would cause binding. But what does counter clockwise binding indicate with drive belt disengaged ?

Hope its not the bearings!
Thanks to forum members for taking time to share.

[billmayo]

This is my first post so forgive me for posting as a new thread, but when I initially(yesterday)posted it on an older thread I didn't get any replies(ah, yee of little patience !).

I have an A-headstock greenie from my dad. Recently it started tripping the breaker, and after cruising this forum and sawdust sessions, I decided I needed to lubricate. The motor and belts were replaced about 10 years ago.

In drill press position.
Motor dropped.
Control sheave removed(and drive belt). Belts in decent shape.
No lubrication holes except on floating sheave(as expected).
Not a lot of sawdust inside. Overall things look pretty good except porkchop which is NOT the subject of this thread.
Poly V-belt (or Gilmer) in place.

After I finished lubrication (I am still in drill press position) I manually turned the main spindle shaft clockwise (imagine it horizontal and you are looking at the sanding disk) and it is smooth.
However, counter clockwise it binds. I know that this is a forbidden movement when the drive belt is in place and would cause binding. But what does counter clockwise binding indicate with drive belt disengaged ?

Hope its not the bearings!
Thanks to forum members for taking time to share.

There should not be any difference in which direction you rotate the quill. Check if the Gilmer belt is trying to ride up on the Drive Sleeve Gilmer clutch pulley hub. The Gilmer belt will come closer to or try to get up on the hub when rotated backward. Look closely as you rotate the quill to see if anything moves. Make sure the Control Sheave is not rubbing or hitting the Speed Control Assembly arm, should have some clearance.

[robodad]

There should not be any difference in which direction you rotate the quill. Check if the Gilmer belt is trying to ride up on the Drive Sleeve Gilmer clutch pulley hub. The Gilmer belt will come closer to or try to get up on the hub when rotated backward. Look closely as you rotate the quill to see if anything moves. Make sure the Control Sheave is not rubbing or hitting the Speed Control Assembly arm, should have some clearance.

The speed control has not been re-assembled so the control sheave is not the problem.

In drill press(vertical) position. I am sitting on the speed dial side of the headstock.
When I rotate the quill backward (clockwise, or away from me) there is no binding and the belt rides high on the hub !
When I rotate counterclockwise (toward me) there is binding (after less than ten degrees rotation) as the belt moves toward the idler sheave.
It does not appear that the belt is causing the binding, even though it shifts on the hub.
Hope this makes sense.

[billmayo]

The speed control has not been re-assembled so the control sheave is not the problem.

In drill press(vertical) position. I am sitting on the speed dial side of the headstock.
When I rotate the quill backward (clockwise, or away from me) there is no binding and the belt rides high on the hub !
When I rotate counterclockwise (toward me) there is binding (after less than ten degrees rotation) as the belt moves toward the idler sheave.
It does not appear that the belt is causing the binding, even though it shifts on the hub.
Hope this makes sense.

Can you tell if there is metal interface binding or a belt type(non-metal) binding. You will have to divide and conquer each section of the power chain. You may need to remove the upper belt to see which level may be binding. I find the sanding disk is excellant to quickly rotate any of the shafts and can normally hear and see where the binding is happening.


I always strip the headstock of all operating parts and then determine if there is any problem with each removed section. Much easier to do this with each section. Then install one section at a time and test that section for any problems. Then add the next section of parts and test both sections, do this until al the parts are install and tested. My senses are my help in determining any problems.

If you are totally unsuccessful, you could ship me your headstock and I will repair it for you along with showing you what was causing the problem. Ny rates are very cheap with postage being the major expensive. Let me know if interested. I have seen and been abe to fix any & all Shopsmith problem I have gotten in the past 10 years that has occured. I have any part that the headstock needs in stock.