Differential Feed - Baby Lock evolve BLE8W Instruction And Reference Manual

Differential Feed

Your Baby Lock serger is equipped with differential feed.The set of feed
dogs work independently in order to ensure smooth sewing on all
fabrics.
When the differential feed adjusting lever, located at the machine's
right, front edge is set on "N" for normal feeding, the feed dogs move
the same distance. This is the setting to use for most fabrics and appli-
cations.
When the dial is set above "N" (fig.B), the front feed dog will feed more
fabrics than the back. This is because the front feed dog moves at a
greater distance than the back feed dogs. As a result, the fabric
becomes compressed or eased, as the diagram on the front cover
indicates. This can eliminate wavy seams in stretchy fabrics or those
cut on the bias grain (fig.A).
At the maximum setting of 2.0 (fig. C), the differential feed can gather
a lightweight fabric to nearly double fullness (fig. D).
The front feed dog is actually feeding in twice as much fabric as the
back feed dog is feeding out. To maximize the gathering effects, use
the longest stitch length setting. Fabric weight will affect the gathering.
Test stitch for desired results.
When the differential feed lever is set below "N" (fig. F), the front feed dog
moves less distance than the back feed dog. This adjustment stretches
the fabric slightly as it is sewn. The lower settings prevent puckers on
lightweight fabric (fig. E), add more stretch to swim wear, active wear, and
can be used to create a lettuce edge (see page 33).
A
B
D
C
E
F
O
V
E
R
V
I
E
W
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