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21.3. Negative diff erential feed
With negative differential feed, the front feed dogs (A) do not move as
much as the rear feed dogs (B). This stretches fabric under the presser foot,
offsetting unwanted puckering of the fabric.
21.4. Sett ing the diff erential feed
The differential feed is set by turning the differential feed control (39). The
feed can also be set while sewing.
21.5. Sett ing the diff erential feed
Use the following table to select a setting:
Application
Non-wavy seams, de-
Positive
sired puckering
differential feed
No differential feed
Neutral feed
Pucker-free
Negative
differential feed
seams
Feed type
Setting
1–2
1
0.7–1
DE
FR
NL
ES
IT
EN
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