How to prevent a Pollywog treadle from rubbing on the wheel
Look under the logo and you will find a small hole in the base
Loosen the screw on the base in the back with a small allen wrench (3/32) which will allow the shaft to move freely back and forth.
Push the shaft back
Tighten the screw with the allen wrench
Happy Spinning!
Why did this happen? This most likely happened during shipping and will not be a problem once the shaft is pushed back into place and tightened with the set screw.