
_____________________________
To
reduce
has
a
other).
one
way.
reverse
qualified
not
change
POLARIZED
the
polarized
This
the
if
plug
the
plug.
electrician
the
OVERLOCK
Record
and
The
The
Serial
Model
Retain
in
Model
Serial
Model
No.
No.
these
risk
of
plug
(one
will
plug
If
does
it
to
plug
space
No.
No.islocated
No.
7234
provided
this
of
located
is
numbers
PLUG
electric
blade
fit
in
not
still
install
in
any
SEWING
below
appliance.
Rear
Rear
for
future
CAUTIOfJ
shock,
is
polarized
a
fit
fully
does
not
the proper
way.
MACHINE
the
Serial
of
arm.
arm.
of
reference.
this
wider
in
fit,
No.
appliance
than the
outlet
outlet,
the
contact
outlet.
only
a
Do
Foot
SL-2,
and
This
Controller
634,
6700.
sewing
Model
634D,
machine
YC.482E
634DE,
is
834DW,
for
Household
for
use
with
Overlocking
3000,
3400, 3400D, 3404,
Use
machine
3404D,
Models
6300,
SL-1A,
6600,

IMPORTANT
SAFETY
INSTRUCTIONS
When
followed,
using
including
Read
an
electrical
the
following:
instructions
all
appliance,
appliance).
DANGER——To
An
appliance
appliance
from
should
the
never
electric
reduce
be
outlet
WARNING——To
electric
1.
Do
used
is
2.
Use
attachments
Never
3.
properly,
appliance
electrical
4.
Never
ings
dust,
Never
5.
Do
6.
7.
Do
being
To
a
outlet.
9.
Do
shock,
allow
not
by
or
this
appliance
operate
if
it
to
or
mechanical
operate
of
sewing
the
and
loose
drop
not
use
not
operate
administered.
disconnect,
not
unplug
or
to
be
used
near
children.
only
recommended
this
appliance
has
been
the
nearest
the
appliance
machine
cloth.
insert
or
outdoors.
where
turn
by
any
all
pulling
injury
as
for
by
dropped
authorized
adjustment.
object
aerosol
controls
on
left
unattended
immediately
reduce
a
Close
toy.
its
intended
manufacturer
the
if
it
has
or
with
any
and
foot
into
(spray)
to
cord.
basic
safety
before
risk
the
when
after
the
to
persons:
attentionisnecessary
use
as
damaged
a
or
service
openings
opening.
(“0”)
grasp
or
are
damaged,
dealer
air
controller
any
products
the
To
unplug,
off
precautions
of
plugged
using
and
risk
described
as
contained
cord
dropped
center
blocked,
free
from
being
position,
the
should
using
electric
in.
Always
before
of
burns,
when
this
in
in
this
or
plug,
if
into
water.
for
examination,
Keep
the
accumulation
usedorwhere
then
remove
plug,
not
always
shock:
unplug
cleaning.
fire,
this
manual.
manual.
it
is
not
Return
ventilation
cord.
the
(this
this
appliance
Use
only
working
repair,
open
of
oxygen
plug
from
be
the
lint,
is
DANGER
Always
1.
2.
Do
3.
Do
Do
not
not
not
unplug
reach
place
place
in
before
for
or
or
an
store
drop
relamping.
appliance
appliance
into
water
Replace
that
where
or
has
other
bulb
fallen
it
can
liquid.
with
into
fall
same
water.
or
be
type
Unplug
pulled
rated
15
immediately.
into
a
tub
watts.
or
sink.

NAMES OF
1.
PARTS
1
2
3
4
6
/
9
10
1
12
7
/
8
/
1.
Spool
Presser
2.
Pressure
3.
Telescopic
4.
Thread
5.
Thread
6.
Thread
7.
Front
8,
Side
9.
10.
Stitch
Presser
11.
12.
Bite
Upper
13.
Front
14.
Handwheel
15.
pin
panel
cover
length
width
knife
cover
lifter
foot
regulator
thread
take
tension
tension
foot
adjusting
(Right
lever
up
support
dials
adjuster
screw
stand
dial
side
machine)
of
—1

2-5.
Threading
threading
When
threading
sequence:
First:
Lower
Second:
Finally:
Lower
(1)
the
Push
towards
and
pass
then,
and
tension
the
be
must
looper
Upper
looper
Needle
threading
looper threading
front
cover
you.Take
it,
in
dial
through
order;
6.(Fig.
the
through
machine
carried
threading
threading
to
the
thread
guide
A)
from
out
(A)
D)
(C,
(A)
right,
drawn
of
guides)
beginning,
the
following
in
the
(B)
fold
and
the
from
thread
4)
it
the spool
and
(s
down
stand
thread
Pass
the
Bring
turning
thread
Then,
by
turning
To
thread
of
the
the
righ
the
threader
direction
lower
Cut
the
thread.
thread
the
lower
handwheel
through
move
the
looper
of
of
looper
thread
(Fig.
through
looper
lower
lower
the
handwheel
the
hole
threader
the
lower looper,
and
the
arrow.
using
I3
leaving
C)
of
draw
guides
to
towards
looper
looper
lower
into
it
through
Then
tweezers.
about
the
far
you,
thread
slightly
towards
looper
the
hook
thread
10cm
1
S
position
left
and
guide
to
you.
,
insert
looper
thread
the
looperinthe
the
the
(4”)
and
pass
the
(Fig.
slot
of
ii
the
hole
spare
(.
by
the
right
B)
tip
from
onto
I
Fig.
B
if
of
,“
\
\
,
—5—
Fig.
C

(2)
Upper
looper
•
Bring
the
II
turning
•
Draw
guide
through
•
Thread
ers.
spare
•
Close
Fig.
D
(3)
•
For
holder
your
holder
R
•
with
Take
through
the
Cut
Right
ease
left
your
the
right-hand
handwheel
thread
of
guides
the
the
thread
the
needle
screw
hand
and
C
right
thread
thread
upper
from
the
hole
thread
(Fig.
front
in
threading,
from
*
turn
threading
looper
toward
spool
thread
of
upper
leaving
D).
cover.
threading
A
side
and
it
in
hand.
drawn
guide
needle’s
(B)
its
to
you.
and
stand
(Fig.
tooperç{j)using
about
(C)
push
with
grasp
the
the
direction
(Fig.
E)
from
spool,
©—®,
eye®
lowest
pass
and
A).
the
the
right
then
from
position
it,
then,
10cm
upper
forefinger
end
of
arrow
and
thread
front
through
in
order,
tweez
(4”)
knife
of
the
pass
by
of
of
a:
it
to
to
back.
Cut
the
thread
thread.
(Fig.
leaving
A)
about
10cm
(4”)
of
spare
(4)
Left
needle
•
Take
the
the
taken
upper
when
knife
moving
is
sharpened,
this
part.
care
should
As
±
be
through
the
(Fig
2-6.
thread
left-hand
A,
E).
Preparation
thread
needle’s
threading
drawn
guides
for
from
2-
eye
Sewing
(D)
4
spool,
6,—8
from
front
and
and
and
pass
thread
to
it
back
Checking.
•
Check
•
Confirm
lower
slowly
there
knives.
Turn
hand
stitch
If
of
threaded
the
the
that
that
knife
towards
is
the
handwheel
to
check
finger
thread
needle
no
thread
the
correctly
you.
any
fabric
that
of
the
doesn’t
plate,
incorrectly.
upper
the
needle
wind
slips
knife
by
turning
If
it
is
or
waste
towards
thread
around
check
off
moves
not
you
winds
plate.
it
or
snaps.
the
correct,
thread
with
the
any
threads
against
handwheel
check
between
your
right
around
stitch
finger
the
if
the
are

(2)
Ending
Make
prevent
the
of
chain-stitches
the
thread
next
sewing.
sewing
from
at
the
end
untying
of
and
the
to
sewing
prepare
to
for
j
Draw
the
finished
the
left
as
chain-stitches.
Then
cut
the
ser
foot.
*
Do
not
pull
bend
and
the
thread
break.
fabric
machine
This
it
out
is
called
2
—5cm
roughly
gently
is
operating
backwards
chain-stitch
(1-2w)
from
as
the
and
sewing.
the
needle
and
make
pies
to
-
will
Tighten
Loosen
I
3-4.
The
materials
Adjustment
very
Accordingly,
sure
Increase
tightening
j
—8—
Adjustment
Pressure
presser
thin
and
of
medium
is
very
or
sew
thicker
the
the
foot
pressure
of
pressure
(standard)
necessary
thick
thinner
materials
adjustment
the
Presser
is
only
materials.
materials
with
of
the
screw.
pre-adjusted
thickness.
when
you
with
more
presser
Foot
work
less
pres
pressure.
foot
for
on
by

THREE
4.
STITCH
Though
stitch
stitch
operated
By
(1)
THREAD
USING
machine
this
overedging
overedging
just
by
removing
OVEREDGING
ONE
NEEDLE
is
made
mainly
using
2
needles,
1
right
needle
needle.
using
removing1needle.
the
for4thread
three-thread
can
be
easily
Three-thread
wide
as
needles
Use
width
(2)
The
Use
width
the
is
By
right
the
is
as
can
left
normaly
removing
right
normaly
overedging
4-thread
a
be
thread
needle
thread
achieved.
tension.
4.5
mm.
the
left
sews
tension.
2.5
mm.
stitch
using
overedging
(Dial
needle.
with
a
narrow
(Dial
1
stitch
(j)
2
needle
using
The
).
width
The
)
for
2
bite
bite.
bite
—13—

(1)
ROLL
5.
Roll
hemming
tensions
folded
Itisideal
(1)
Remove
right
needle)
HEMMING
so that
under
to
for
use
the
is
achieved
1.5
with
left
the
fabric
mm
thin
needle.
by
in
width.
materials.
adjusting
is
overiocked,
(Sew
only
the
thread
with
and
the
—14—
Change
(2)
for
roil
roil
For
marked
foot
“A”
sewing).
(3)
Set
(4)
Set
(5)
The
Dial©:
Dial
©:
Dial
®:
For
roll
the
guide
it
to
guide
At
the
the
thread
For
towards
the
neater
hemming.
hemming
“B”
and
the
the
standard
Needle
Upper
Lower
hem
left
illustrated.
®
the
®.]
begining
roll
hem
the rear
the
presser
sewing,
and
the
needle
the
bite width
stitch
length
thread
thread
looper
looper
sewing,
side
right
side
of
chain.
sewing,
of
stitches.
foot
needle
between
thread
thread
pass
(solid
[For
(dotted
sewing,
the
and
use
plate
plate
adjuster
tensions
the
line)
normal
gently
the
pull
machine,
the
“B’
“A”
4.5and
the
are
1.
to
are
1
1
5—
nedle
sewing,
line)
pull
material
and
needle
presser
(The
for
5.5.
as
—4
—
4
8
thread
of
of
the
you’ll
plate
foot
presser
normal
follows:
tension.
tension.
tension
thread
pass
thread
end
gently
to
of
get

CORDED
6.
OVERLOCK
Corded
when
fabrics.
There
(1)
the
(2)
of
overlock
joining
are
Place
iight
a
Sew
overlocked
the
REPLACING
7.
The
upper
special
be
fabric
tion,
Before
supply
Move
toward
long-lasting
replaced.
even
replace
replacing
plug
the
you.
two
slightly
the
needle,
narrow
knife
though
front
canbeused
elastic
ways
and
cord,
stitch.
and
However,
them
is
take
cover
of
wide
THE
steel
they
in
the
out.
to
materials
corded
cord
sew
on.
positioning
CUTTING
lower
and
when
are
the
following
knife,
to
the
strengthen
such as
overlock.
(about
knife
will
seldom
they
in
set
be
sure
right,
3mm)
on
it
KNIVES.
are
made
not
do
the
right
way:
the
then
stitches
knitted
under
the
have
cut the
open
edge
of
posi
power
I-
a
to
it
plate
Replacing
(1)
Loosen
the
knife
(2)
Move
turning
Loosen the
upper
Checkifthe
positioned
biting
Tighten
the
knife
for
with
Replacing
the
the
knife.
position
the
the
lower
new
a
the
topofthe
the
upper
handwheel
upper
Change
biting
downwords
of
upper
ower
knife
one.
upper
knife
knife
position
lower
knife
knife:
clamp
Align
needle
to
towards
screw,
the
knife
O.5—1.O
knife.
screw.
screw
the
knife:
its
lowest
foranew
Aofupper
topofthe
plate.
you.
while
from
and
position
holding
the
change
lower
one.
knife
top
by
the
is
of
—15—

CHANGING
8.
THE
LIGHT
BULB
tight
the
When
switched
is
(1)
(2)
(3)
(4)
9.
Lubrication
since
oil
two
Out
Take
Remove
Change
Replace
LUBRICATION
the
important
impregnated
drops
on:
the
the
the
the
of
is
does
lamp
light
oil
power
lamp
not
sintered
will
not
come
supply
cover.
bulb.
cover.
necessary
are
parts
metal.
increase
on
even
plug.
for
all
made
However;
durability.
this
though
machine
of
a
special
one
it
or
—16—
CLEANING
disconnect
First
Using
and
front
the
lint
plug
that
removing
Open
1.
2.
STORAGE
removing
Using
machine
your
away
Store
the
the
When
1.
disconnect
2.
3.
SERVICING
questions
Any
addressed
be
is
to
purchased.
was
machine
from
cover
brush
has
machine
it
plug
vinyl
from
regarding
electric
the
side
and
provided,
accumulated.
is
the
from
the
from
cover
you
when
bright
service
store
the
to
from
cover.
remove
not
power
electric
rovided
finish
and
power
outlet.
in
damp
and
where
(See
all
use,
supply
outlet.
please
your
or
the
supply
Page
the
please
sewing.
places.
operation
machine
by
3)
dust
by
cover