- Joined
- Jul 8, 2015
- Messages
- 145
Back to the Bandsaw!
-So when last we left our intrepid new-guy he was struggling to figure out what was wrong!
The saw motor keeps tripping the breaker- Its wired to a 40A 220V outlet- and has worked fine (resawn multiple batches of cherry and sycamore over a couple of months).
Initially I thought the motor was bad- but it runs fine and will only trip when I am adjusting the speed...
Alright- So I have narrowed it down to the double pulley system for the variable speed... But I have no idea how these critters work. When I opened the saw up after it was acting up- the pulley spun freely, but both the outer and inner grub screws were loose and all 3 plates moved on the pulley shaft.
Without the belts on- the motor does not trip...
With the belts on- the motor does NOT trip- until I begin to adjust the speed UP- I think it is binding in the pulley.
The grub screws were loose originally when I opened it up- and look to have been tightened a bunch of times (see picture) Lots of old scars there!
So I thought this may be a part of the issue- both the outer and inner grub screw was tightened... and it caused the pulley to NOT spin freely on the shaft. It would bind at 2-3 o'clock in its rotation... but the inner plate can slide freely by hand back/forth.
So my questions are Do I secure the pulley screws on the inner/outer keys? And how do I prevent the binding?
I am concerned about the pulley binding when I tighten the grub screw as well- does that mean it has warped the hole enough through tension?
-So when last we left our intrepid new-guy he was struggling to figure out what was wrong!
The saw motor keeps tripping the breaker- Its wired to a 40A 220V outlet- and has worked fine (resawn multiple batches of cherry and sycamore over a couple of months).
Initially I thought the motor was bad- but it runs fine and will only trip when I am adjusting the speed...
Alright- So I have narrowed it down to the double pulley system for the variable speed... But I have no idea how these critters work. When I opened the saw up after it was acting up- the pulley spun freely, but both the outer and inner grub screws were loose and all 3 plates moved on the pulley shaft.
Without the belts on- the motor does not trip...
With the belts on- the motor does NOT trip- until I begin to adjust the speed UP- I think it is binding in the pulley.
The grub screws were loose originally when I opened it up- and look to have been tightened a bunch of times (see picture) Lots of old scars there!
So I thought this may be a part of the issue- both the outer and inner grub screw was tightened... and it caused the pulley to NOT spin freely on the shaft. It would bind at 2-3 o'clock in its rotation... but the inner plate can slide freely by hand back/forth.
So my questions are Do I secure the pulley screws on the inner/outer keys? And how do I prevent the binding?
I am concerned about the pulley binding when I tighten the grub screw as well- does that mean it has warped the hole enough through tension?