10
b e r n e t t e O V E R L O C K E R W O R K B O O K
The overlocker should be threaded for a 4-thread overlock
stitch using thread colors to match the color-coded
threading path on the machine. Adjust all thread tension
settings as indicated below or as previously determined in
the earlier exercises.
1.
With the differential set at 1 (normal), sew two of the
knit pieces together along the stretchy 6” edge. When
stitching on fabric that is very stretchy, you may notice
that you have a wavy or stretched-out seam when
sewing with the Differential Feed Dial at the normal
setting.
2.
To correct this, adjust the differential to 2.0. Sew the
remaining ribbing to the other side of the first piece,
trimming slightly.
3.
Mark the differential settings on the fabric sample.
4.
Return Differential Feed Dial to its normal setting of 1.
DIFFERENTIAL FEED: STRETCHY FABRICS
Jersey knit, three pieces, 3" x 6"* each
80/12 ELx705
4 Spools Serger Thread (B, R, G, Y)
4-Thread Overlock Stitch
Standard
thread
tension
setting
machine
setup
L
eft
N
eedLe
R
ight
N
eedLe
U
ppeR
L
oopeR
L
oweR
L
oopeR
S
titch
L
eNgth
c
UttiNg
w
idth
d
iffeReNtiaL
f
eed
R
oLLed
h
em
L
eveR
4
4
4
4
2�5
6
1-2
N
Differential
1
(normal)
Differential
set at 2
to correct
wavy seam
*Cut jersey knit so that the 6" side has the most stretch.
