Adjustment Of Stitch Length; Adjustment Of Differential Feed Ratio - Kenmore OVERLOCK 3/4D 385.16631 Owner's Manual

Sears sewing machine user manual
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Adjustment
of Stitch
Length
f
Setting marK_
)
Stitch length
dial
/
_
J
To select stitch
length,
turn
the dial.
The larger the number,
the longer the stitch.
The stitch
ength
can be adjusteo
from
1 to 4 mm
(approx.
1/32"
to 5/32'q.
Position
"R"
is for rolled
and narrow
hemming.
Setting
Differential
feed
dial
The differential
feed ratio
can be altered
by turning
the dial.
The
number
on the dial
indicates
the differential
feed
ratio
between
the main
and the sub
Differentia!
feed
gathers
feed motion.
[]
indicates
the neutral
position-no
differential
feed.
How to Adjust
e
If
the
sewn
fabric
is stretched,
turn
the
dial
counter-clockwise
(from
1.0 to 2.0) to avoid.
26
®
If the sewn fabric
is puckered,
turn
the dial clock-
wise (from
1.0 to 0.7) to avoid.
NOTE:
Maximum
differential
feed
ratio
sets automatically
to a maximum
between
1.7 and 2.0 when
the stitch
length
is set between
3.3 and 4.0.
Maximum
stitch
length
and differential
feed
ratio
cannot
be set at the same time.
If limits
are exceeded
for one control
dial,
the other
dial will
automatically
set to its maximum.
The puckering
may be eliminated
by reducing
thread
tensions
as well
as adjusting
the differential
feed ratio.
_
_.
Differental
fe_d
stretches
c ored
Desired
Desired

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