Originally Posted by
yobrosew
Oft times when fixed or rebuilt over a lifetime of the machines this washer (white arrow) against cabinet is missing, making wobble enough for belt to jump out at green arrow. Same effect if screw at blue arrow is stripped. The treadle wheel itself should not be over-exaggerate in its wobble. If so, again the belt jumps the track. Also, before troubleshooting further, be sure all oil points have been oiled “down below”. Is there any rust build ups.
Do not get iscouraged, I LOVE my White Rotary Treadle! Once you resolve this the machine will most likely be maintenace free from here on out. It is a blast to “drive”!
This sounds like it might be my problem, the washer that is. It always seems to jump off at the back of the wheel, I'll have to give this a look in the next few days.
I previously oiled the friction points I could reach but I'll do it again when I get under there.