speed control belt stuck between pulley sides

[duane]

Hey All,

I was using my bandsaw at too high a speed and kept blowing the breaker feedng the circuit to the saw. when I adjusted the speed I lost my head and wound up with the belt between the adjuster pulleys and am having a time trying to figure out how to draw the pulley halves together and get the belt back where it belongs. I have put the sanding disc on and tryed to turn while adjusting the speed control. It seeems to slip instead of turning the drive mechanism. Your ideas are welcom, especially you experts. LOL

Thanks

Duane

[billmayo]

Hey All,

I was using my bandsaw at too high a speed and kept blowing the breaker feedng the circuit to the saw. when I adjusted the speed I lost my head and wound up with the belt between the adjuster pulleys and am having a time trying to figure out how to draw the pulley halves together and get the belt back where it belongs. I have put the sanding disc on and tryed to turn while adjusting the speed control. It seeems to slip instead of turning the drive mechanism. Your ideas are welcom, especially you experts. LOL

Thanks

Duane

This can happen to the best of us for many reasons. Do not do any prying with screwdrivers or pry bars on any of the sheaves as they do score, bend and/or break. It sounds like you got the belt below the tips of the sheaves. First, I would set the speed control to FAST first, motor not operating, this is OK to do. This opens the top sheaves to their maximum. Try turning the sanding disc again in one direction and then the other direction. This works many times. If not successful, remove the belt housing. Sometimes, I am able to turn the motor floating sheave while pulling on it forcing the belt out pass the tips. In a worst case, I have had to cut the belt off in pieces and replace wth a new belt. This normally happens with well worn or non-shopsmith belts.

Do not let the spring loaded motor floating sheave go when no belt is present as this drives the fan sheave into the motor housing causing more problems. Watching my finger tips, I ease the floating sheave closed.

You should check the speed control quadrant and control sheave bearing end for any damage. I always oil the control sheave (6-8 drops) and motor floating sheave (3-4 drops) when I find belt problems.

The upper control sheave is moved with the speed control handle. The motor floating sheave is controlled by spring pressure.

[duanes@prairiieinet.net]

Thanks for the help. I got the belt back where it needed to be, In doing so I found the cause for the belt going where it should not. The keeper split ring on the end of the motor shaft had let go and the cup which held the spring was tempararily caught on the ring groove on the shaft. Once I had the belt where it needed to be and was testing the machine the cup and spring flew off the shaft. Now I get to compress the spring and put the split ring back on. Should I replace any parts or use what I have?

[JPG40504]

Thanks for the help. I got the belt back where it needed to be, In doing so I found the cause for the belt going where it should not. The keeper split ring on the end of the motor shaft had let go and the cup which held the spring was tempararily caught on the ring groove on the shaft. Once I had the belt where it needed to be and was testing the machine the cup and spring flew off the shaft. Now I get to compress the spring and put the split ring back on. Should I replace any parts or use what I have?

1) What caused the split ring to come off the motor shaft?

2) Is it and the motor shaft undamaged?


If damaged, replacement parts are needed.

If not damaged, be sure to understand the answer to 1) above so as to prevent a repeat performance.

[billmayo]

Thanks for the help. I got the belt back where it needed to be, In doing so I found the cause for the belt going where it should not. The keeper split ring on the end of the motor shaft had let go and the cup which held the spring was tempararily caught on the ring groove on the shaft. Once I had the belt where it needed to be and was testing the machine the cup and spring flew off the shaft. Now I get to compress the spring and put the split ring back on. Should I replace any parts or use what I have?

Copy to your computer and CD for a backup these 25 maintenance procedures:
http://www.allinonewood.com/?page=shop/serviceadvisor
Replacing the motor spring is one of the procedures.

There are videos available on-line, See the Sawdust Sessions Video Index
http://www.shopsmithacademy.com/Sawdust_Sessions.htm

[efmaron]

duane,
Happy to see that you came here for help. Stick around I think you will enjoy this site.

[duanes@prairiieinet.net]

Thanks for all the help. I have enjoyed the link to the shopsmith videos and maintenance tips. To reinstall the ring on the motor I used hole saw and cut halfway through a 3/4 piece of wood with a size to go over the cap and then the next smaller size the rest of the way through. I easily compressed the spring and had planty of room to work the split ring on the groove in the shaft. I could not find any damage to te shaft or the ring but the stainless cup had some distortion where the ring would rest. Still a mystery to me why I lost the ring to begin with.

In the printed directions on the maintenance page, it began with rewiring the switch before dealing with the reinstallation of the spring, cup and clip. ???

Thanks again to all

Duane