White 7234 User manual

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

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

WARNING
I
)c.ep
hnger
away
from
aU
moving
parts.
Specia’
care
is
required
around
the
sewing
m4(
t1Ifl fltd1t
Atway
w.u
itw proper
needle
plate.
The
wrong
plate
can
cause
the
needle
to
break.
1k)
not
ue
bent
noedIs
4
Oo not
pull
or
pu6h
tabnc
while
stitching.
It may
deflect
the
needle
causing
it
to
lii
Ldk
wi1ch
the
sewiriçj
machine
ott
(“0”)
when
making
any
adjustments
in
tne
needle
erei, 5uch
as
threading
needle,
changing
needle,
threading bobbin,
or
changing
pressur
toot,
etc.
C
Always
unplug
sewing
machine
trom
the
electrical
outlet
when
removing
covers,
lobr4catfng, or
when
making
any
other
user
servicing
adjustments
mentioned
in
the
tostruction manual.
I Never
operate
on
a
soft
surface
such as
abed
or
couch where
the
air
openings
smiy
be
blocked.
SAVE
THESE
INSTRUCTIONS

CONTENTS
1.
NAMES
OF PARTS
1
2.
PREPARATION
FOR
SEWING
2
2—i.
Connecting
Power
Cord
2
2-2.
Setting
Telescopic
Thread
Stand
2
2-3.
How
to Change Threads
3
2-4.
Replacing
Needles
4
2-5. Threading
5
2-6.
Preparation
for
Sewing
and Checking
6
3.
FOUR
THREAD
OVEREDGING
STITCH
USING
2
NEEDLES
7
3-1.
Before
Sewing
7
3-2.
Presser
Foot
Litter
7
3-3.
Beginning
and
Ending
of
Sewing
7
3—4.
Adjustment
of The
Presser
Foot
Pressure
8
3-5.
Thread
Tension
Adjustment
9
3-6.
Adjustments
for
Size
of Bight
11
3-7.
Stitch
Length
Adjustment
12
3-8.
Sewing
for
Curved
Seams
12
4.
THREE
THREAD
OVEREDGING
STITCH
USING
ONE
NEEDLE
13
5. ROLL
HEMMING
14
6.
CORDED
OVERLOCK
15
7.
REPLACING
THE CUTTING
KNIVES
15
8.
CHANGING
THE
LIGHT BULB
16
9.
LUBRICATION
16
0.
TABLE
OF
SEWING
MATERIALS,
NEEDLES
AND
THREAD
17
1.
ACCESSORIES
18
2.
SPECIFICATIONS
19

1.
NAMES OF
PARTS
1. Spool
pin
2.
Presser
foot
lifter
3.
Pressure regulator screw
4.
Telescopic
thread
stand
5.
Thread
take up
lever
6.
Thread
tension
support
7.
Thread tension dials
8,
Front
panel
9.
Side
cover
10. Stitch length
adjuster
11.
Presser
foot
12. Bite width
adjusting
dial
13.
Upper
knife
14.
Front
cover
15.
Handwheel
(Right side of
machine)
1
2
3
46
78
/
/
/
910
1
12
—1

2.
PREPARATION
FOR SEWING
2-1.
Connecting
Power
Cord
Connect
foot
controller
and
power
cord
CD
©.
Before
plugging
in
your
machine,
be sure that
voltage
is
same
as that
of
your
machine.
(written on
a
plate
at
back
of
machine).
*
Specifications
vary
from
country
to country.
Put
power
switch
on
machine
and
turn
on
sewing
light.
Always
switch
off
or
unplug
machine when
not
in
use.
The
more
you press
foot
controller
the faster
the
machine
runs.
When
the power switch
is
turned
off,
the machine
will
not
operate
even
by pressure
on
the
foot
controller.
2-2.
Setting
Telescopic Thread
Stand
Extend
the
telescopic
thread
stand
to its full
height,
then
turn
it
until
the
shaft
clicks
into
its
locked
position.
—2-—

2-3. How
to
Change Threads
The
machine
is
supplied
with
thread but
the
fol
lowing
is an
easy
way
to
change
them:
(1)
Cut
the
thread in
use
near the
cone
spool
(behind the
telescopic
thread stand).
Place
the
new
thread
on
the
spindle
and
tie
it
to
the
end
of
the
original
thread.
(2)
Lower the
presser
foot
lifter
to
lift
up
the
press
er toot.
(3)
Set
tensions
to
0 so that
the
thread knot
can
pass
through
smoothly,
draw out
the
looper
thread
until
the thread
knot
comes to
about
10
cm
past
the
presser
foot.
(4)
When changing
the
needle thread, cut
off
the
thread
knot
before it
reaches
the
eye
of
the
nee
dle
to
avoid
bending
the
needle as
the
knot
is
pulled
and
caught in
the needle’s eye.
To
make
the
above
threading
easier,
use
tweezers.
Tie
threads
Cut
thread
I
4
Needle
eye

Cover
the
spool
with
the
NET”
as chemical
fibers
(fibres)
and
the
like
are
easily frayed.
When
using
a
real
type
thread
spool,
insert
the
spool
adapter
(supplied
with
the
machine)
(as
shown).
2-4.
Replacing
Needles
Replace
needles
in
the
following
way:
Note:
be
sure
to
take
out
the power
supply
plug
before
replacing
needles.
(1)
Bring
needles
to
their
highest
position
by
turning
handwheel
towards
you.
(2)
Loosen
the
needle
clamp screw
and
remove
the
two
needles
together.
(3)
With
the
flat
side
away
from
you,
insert
the
new
two
needles
together
into
the groove
of
needle
bar
as
far
as it
will
go.
Use
“HA
x
iSP
(705/130>”
#11(80)
or
#14(90)
or
ones
the
same
as
for
home-use
sewing
machine.
Needle
clamp
screw
J
—4—

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