Puller
66 Service Instructions 827/827-M - 01.0 - 05/2019
15.1 Adjusting the synchronization of feed dog and puller
Proper setting
Feed dog and puller operate in sync.
The movements of carrier roller and feed dog end simultaneously.
The synchronization of feed dog and puller ensures that the sewing
material remains under tension between sewing foot and carrier roller.
This prevents ruffing on the seam during stitch formation.
Fig. 48: Adjusting the synchronization of feed dog and puller
(1) - Small arresting groove
(2) - 1
st
screw in the direction of rotation
(3) - Eccentric
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