Operation Manual
Cause
Presser
loot
pressure
too
weak.
1
Needles
herr
t,
01
needle
tip
blunt
2.
Needles
incor
rectl’
7
lit
ted
3.
Material
pulled
forcibly.
1.
trnprojrer
threading.
2.
I
hrread
tangled.
3.
thread
tension
too
tight.
4.
Needles
incorrectly
fitted.
5.
Wrong
needle
used.
1
Needle
bent,
or
needle
tip
blunt.
2.
Needle
incorrectly
fitted.
3.
Wrong
needle
used.
4.
Improper
threading.
5.
Presser
loot
pressure
too
weak.
Thread
tensions
not
adjusted
properly.
1
.
Thread
tension
too
tight.
Remedy
1
urn
pressure
adjustment
screw
clock
wise
to
increase
presser
foot
pressure.
Replace
with
new
needle.
Fit
needles
correctly.
(See
page
2.)
Do
not
press
or
pull
material
too
hard
when
sewing.
Thread
correctly.
15cc
pages
6—
It),
25—26.)
Chock
spool
pin,
thread
holders,
etc.
and
remove
tangled
thread.
See
pages
13—t8
“thread
tension”.
Fit
needles
correctly.
(See
page
2.)
Use
correct
needle
TEX1
(DBX1)
____
Replace
with
new
needle.
Fit
needle
correctly.
(See
page
2.)
Use
(orrect
needle
TEX1(DBX1)
_________
-
1
bread
correctly.
(See
pages
6—ill,
25—26.)
Turn
pressure
adjustment
screw
clock
wise
to
increase
presser_foot_pressure.
See
pages
13—lt1
“Thread
tension”.
Decrease
thread
tension
when
sewing
lightweight
or
fine
material.
(See
pages
13—ill.)
Stitch
selection
1.
Four-thread
overlock
stitch
Use
all
the
four
threads
and
two
needles
for
producing
four-thread
overlock
stitches,
which
will
neatly
fit
all
kinds
of
materials,
especially
knitted
ones.
Use:
Ideal
for
sewing
knitted
gar
merits.
2.
Three-thread
overlock
stitch
(5
mm/
1
/4
inch)
Use
three
threads
and
left
needle,
producing
5
nim
seams,
which,will
fit
all
kinds
of
materials.
Use:
For
overlock.
stitching
and
sew
ing
suits,
blouses,
slacks,
etc.
Note:
Take
off
right
needle
when
sew
ing
this
overlock
stitch.
.
3.
Three-thread
overlock
.
stitch
(3
mm/
3
/16
inch)
..
Use
three
threads
and
right
needle,
producing
2.8
1
.mrn,
—.
(
3
A6
inch)
seams.
..
Note:
Take
off
left
needle
when
sew-,,
ing
this
overlock
sitctch.
Use
three
threads
and
left
needle.
with
rolled
hemming
stitch
attach-..
ment,
producing
narrow
hemming
stitch.
Fault-finding
Ins
sewing
machine
is
designed
lot
trouble-free
operation.
I
lowcvcr
the
following
iart
indicates
faults
htch
may
deselop
rn
the
absence
of
basic
adjustments.
This
sewing
machine
can
form
five
kinds
of
stitches
in
simple
steçisas
follows;
Fr
oub
Ic
Does
not
Needles
break.
1
breads
break.
Skipped
stitches.
titches
not
mi
form.
abric
u
c
ke
red.
2.
Improper
threading
1
bread
correctly.
or
thread
tangled.
(See
pages
6—ill,
25—26.)
—
23
4.
Narrow
hemming
stitch
L
5.
Rolled
hemming
stitch
Use
two
threads
and
left
needle
with
rolled
hemming
stitch
attachment,
producing
rolled
hemming
stitch.
24
—