You obviously paid attention to whatever your research presented(Nick?).(as well as to some posts here).psdiegel wrote:The reason that there was smoke and a burning smell coming from the poly-v belt was that the idler shaft was no longer flush with the eccentric bushing. It was protruding out about 1/4 of an inch. This caused the poly-v belt to rub against metal. Here is the fix:
1.Took the machine up to fast so that the upper sheaves were wide open.
2.This allowed removal of the drive belt from the bottom sheaves.
3.Removed the screw and washer holding the eccentric bushing in place.
4.Removed the bolt and nut completely from the ears holding the eccentric bushing in place.
5.Turned the slot in the eccentric bushing to the 6:00 position. This allows access to the allen screw from underneath and between the ears.
6.Used a 5/32 allen wrench to loosen the allen screw.
7.Now, while holding the drive belt up and away from the upper sheaves, I gently tapped the idler shaft back until both the eccentric bushing and the idler bearing were flush.
8.Retightened the allen screw just until it was snug. Don't overtighten.
9.Replaced the bolt and nut and turned slot in eccentric bushing until poly-v belt deflected between 1/8" and 1/4". Tightened bolt until snug.
10.Replaced the retaining screw with a slightly larger washer that not only holds the eccentric bushing in place but the idler bushing too.
11.Put the drive belt back on the sheaves. Turn by hand several times to allow belts to seat themselves. Turned on and took up and dn several x.
Please note that my Shopsmith is from 1981.
Kudos on that!
Also on the detailed answer to Dusty's question!
Now remember adjust slowly towards slow. Most common damage to the quadrant gear(porkchop) is a result to both too fast towards slow and insufficient lubrication. Avoid both and it will outlast thee!
Created this this AM and neglected to submit.