Need help with belt falling off treadle
Hi, I am new to the forum. I have a White Family Rotary treadle machine which works well when turned by hand but the belt falls off when I try to turn the machine with the treadle, I have tried the old leather belt, a new leather belt, and a nylon rope but nothing has worked. The belt falls off the back side of the large lower wheel on the first rotation and tightness of the belt doesn't seem to matter, unless it is so loose that is slips.
Does anyone have any ideas?