bearisgray

I had purchased a Pfaff 1473 and the presser foot shank had been so worn that the presser feet would fall off while sewing.

I bought a replacement presser foot shank - which "fixed" the problem of the presser feet falling off, but it would catch/hang up at any and all "bumps in the road." Which got to be very annoying.

I bought another Pfaff and tried swapping out the shanks - the IDT acted up on the other machine and when I put the shank from the "other" Pfaff on the 1473, the IDT behaved properly.

So - I ordered another replacement shank - the screw hole is much smaller than on the first replacement shank - and the problem is solved.

Even my sewing machine guy did not figure this out when he looked at it this summer!