44
PFM-4000
Part Number 6Z8303
Sewing Adjustments
Shims
Metal spacers used
to adjust the top feed dead
band and prevent the top
feed from placing pressure
on the needle plate.
2
Insert or remove the two adjustment shims as needed until the teeth of the
lower main feed and the top feed have only a minimum space between
them.
3
Test the spacing between the top feed and the lower feed by passing a sheet
of paper between them. This space should be enough to allow a piece of
paper to pass between the teeth of the lower main feed and the top feed.
Figure 6.11
Top Feed dead band location