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DIFFERENTIAL FEED
– Differential feed is a system which "stretches"
or “gathers" the fabric, when the amount of feed
of front feed dogs in relation to the rear feed
dogs is changed.
– The differential feed ratio ranges from 0.6–2.0.
Adjustment is made by means of the differential
feed dial at left.
– Use of differential feed is very effective in
overedging stretch fabrics and fabrics cut on the
bias.
– Setting "1" is differential feed dial setting for
ratio 1:1.
Gathered Coverstitch (1–2.0)
• To set the dierential feed dial for gathe-
ring
– Set differential feed dial above setting "1".
– Setting of adjusting dial depends on material
being sewn as well as the amount of desired
gather.
– Therefore set dial to suit the fabric and test sew
before sewing your garment.
Stretch Coverstitch (1–0.6)
• To set the dierential feed dial for
stretch
– Set differential feed dial between setting "0.6" -
"1".
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