y useful.
Excuse my ignorance but what is the "upper transport facility"?
Good question!
You'll find it much more commonly referred to as the IDT (Integrated Dual Transportation) so much clearer!
You'll hear us Pfaff owners always nodding in harmony saying how great it is. It serves the same function as a walking foot but the IDT design allows you to engage it with lots of other specialist feet at the same time and in addition, because it doesn't take up so much space it's more nimble in use. I think the other reason we love it so much is because it's on the vast majority of their models, not just limited to the big ticket models as with the other brands now able to copy it since its patent has expired. That may have been the case when it was first launched in 1968 but certainly not for many years.