Husqvarna Huskylock 341 User manual

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‘IMPORTANT
SAFETY
INSTRUCTIONS”
‘When
using
an
electrical
appliance,
basic
safety
precautions
should
always
be followed,
including
the
following.”
‘Read
all
instructions
before
using
this
sewing
machine.”
N
G ER
—
To
reduce
the
risk
of
electric
shock:
1
“This
sewing
machine
should
never
be
left
unattended
when
plugged
in.
Always
unplug
this
sewing
machine
from
the
electric
outlet
immediately after
using
and before
cleaning.”
2 Always
unplug
before
replacing
light
bulb
Replace
bulb
with
same
type rated
15 watts
“VVPR
N IN
G
—
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
sewing
machine
is
used
by
or
near
children.”
2
‘Use
this
sewing
machine
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 sewing
machine
if
it
has
a
damaged
cord
or plug,
it it is
not working
properly,
if
it
has
been
aropped
or
damaged
or
dropped
into water
Return
the
sewing
machine
to
the
nearest
authorized
dealer
or
service
center
for
examination,
repair,
electrical
or
mechanical
adjustment.”
4 Never
operate
the sewing
machine
with
any
air
openings
blocked
Keep
ventilation
openings
of
the sewing
machine and
foot
control
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.”
8. “To disconnect,
turn
switch
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.”
10. “Keep
fingers
away
from
all
moving
parts. Special
care
is
required
around the
sewing
machine
needle.”
11. “Always
use
the
proper
needle
plate.
The
wrong
plate
can
cause
the
needles
to
break.”
12. “Do
not use
bent
needles.”
13.
“Do not
pull
or
push fabric
while
stitching.
It
may
deflect
the needle
causing
it
to
break.”
14. “Switch
the
sewing
machine
off
(“0”)
when
making
any
adjustments
in
the needle
area,
such
as
threading
needle,
changing
needle,
threading
loopers,
or
changing
presser
foot,
etc.”
15.
“Always
unplug
sewing
machine
from
the
electrical outlet
when removing
covers,
lubricating,
or
when
making
any other
user
servicing
adjustments
mentioned
in
the instruction manual.”
ii
—
Moving
parts
—
To
reduce
risk of
injury,
switch
off
before
servicing.
Close
cover
before
operating
machine.”
“SAVE
THESE
INSTRUCTIONS”
“This
product
is
for
household use,
or equivalent.”

TABLE
OF
CONTENTS
1.
KNOWING
YOUR
MACHINE
Identification
chart
2-3
Parts
list
4
Setting
up
your
machine
5
Foot
control,
Power/light
switch,
Adjusting
machine
balance
Preparation
for
threading
Thread
stand,
Thread
guide
pole,
Extension
plates
and
spool
holders,
Spool
caps
6
Fitting
the
needle
(s),
Needle,
thread
and
fabric
chart
7
2.
STARTING
TO
SEW
Threading
your
machine
Looper
threading
8-9
Needle
threading
10
Testing
stitch
11
Adjusting
thread
tensions
12-13
Three-thread
overlock
with
one
needle
14
Adjusting stitch
length
15
Adjusting
overlock
switch
width
16
Changing
to
needle
plate
and
presser
foot
for
narrow/rolled
hems
16
Changing
to
standard
needle
plate
and
presser
foot
17
Machine
adjustment
chart
for
narrow
and
roiled
hems
18
Differential
feed
19
Positive
differential
feed
19
Minimal
differential
feed
19
Setting
differential
feed
20
Foot
pressure
regulator
20
Overiock
edge
finish
21
Fabric
22
Thread selection
22
Removing
stitches
from
sewn
fabrics
22
Narrow
and
rolled
hems
23
Applications
23
Finish
seams
24
Outside
corners
25
Inside
corners
and
angles
26
Outward
curve
27
Turning
curved
edges
27
Decorative
effects
28-30
Pin
tucks, Decorative
edges,
Decorative
braids
Corded
overiock
31
Four-thread
overlock
on
knitted
material
32
Quilting
squares/triangles/diamonds
32
Differential
feed and
applications
33
3. CARING
FOR
YOUR
MACHINE
Replacing
moving
cutter
34
Changing
light
bulb
34
Cleaning
and
oiling
35
4.
CHECKING
PERFORMANCE PROBLEMS
36
SPECIFICATION
OF
MACHINE
36
5.
OPTIONAL
ACCESSORIES
AVAILABLE
FOR
YOUR
MACHINE
37-40
1

2.
KNOWING YOUR
MACHINE
DENTIFICATlON
CHART
Side cover
Needle
Threading
Foot
control
Carrying
hand)
Foot
pressure
regulator-
Needle
thread
guide
Left
needle thread
-
tension
control
Thread
support-
Cord
guide
for
corded
sewing
Needle
thread
guides
Thread guide
pole
Looper
thread
guide
-
Right
needle
thread
tension
control
Accessory
case
2

FRONT
AND
SIDE
COVERS OPENED
Needle
Presser
foot
Fixed
cutter-
Stitch
length
control
Presser
foot lever
per
looper
Lower
looper
cutter
3

PARTS
LIST
All
parts
listed
may
be obtained
from
your
nearest
dealer.
When
ordering,
please
give:
1.
The
model
and
serial
number
of
your
machine,
which you
will
find
on
the
identification
plate,
at
the
back.
2.
The
part
number
and
description.
Screw
driver(large)
No.
1627
Screw
driver(small)
No.
1628
Needles
No.
11550
Oiler
No.
1613
Needle
plate
for
narrow/rolled
hems
No.
11599
Presser
foot
for
narrow/rolled
hems
No.
11956
Extension plate
x
4
No,
6106
Spool
holderx
4
No.
11401
Detachable
cord
guide
No.
11497
‘I
j
Tweezers
Brush
No.
11556
No.
11450
Spool
cap x
4
No.
11423
ARRANGEMENTS
OF
ACCESSORIES
IN
THE
MACHINE’S
BASE
Open
the
side cover
by
swinging
away
from
you
to
the
left.
Inside
you
will
then
find
the
special
compartments
which
have
been designed
to
store the
various
accessories.
By
following
the
layout illustrated,
you
can
then
place
each
accessory
into
its
most suitable
position
and
keep
them easily
accessible
when
they
are
required.
4

INSTALLATION
INSTRUCTIONS
SETTING
UP
YOUR
MACHINE
1.
Set
your sewing
machine
on
a
sturdy,
flat
surface.
2.
Your
sewing
machine
has
been
thoroughly
oiled
at the
factory.
Be
sure
to
wipe
off
the
needle
plate
area
and
bed plate
carefully
before
sewing
a
garment.
It
is
wise
to
practice
on
a
scrap
of
fabric
so any
surplus
oil
is
absorbed.
3.
FOOT
CONTROL
Push
foot
control
plug
into
the
connector
socket
at
the
bottom
right-hand
side
of
the
machine.
4.
POWER/LIGHT
SWITCH
Your
machine
will
not
operate
unless
the
power/light
switch
is
turned
on.
This
same
switch
controls
both
the machine
power
and
sewing
light.
When
leaving
your
machine
unattended,
the machine
MUST
be
switched
off
or
the
plug
removed
from
the
socket-outlet.
When
servicing
the
sewing
machine,
removing
covers
or
changing
lamps,
the
machine
MUST
be
disconnected
from
the
supply
removing
the
plug
from
the
socket-outlet.
5.
ADJUSTING
MACHINE
BALANCE
In
order
that
you
may
be
able
to
compensate
for
any
unevenness
on
your
working
surface,
the
machine
is
fitted
with
an
adjustable
rubber
stud.
This
can
be located
by
opening
the
side
cover
where
it
will
be
seen
inside
to
the
left.
Turn
the
screw
clockwise
to lower
the
rubber
stud
beneath
the
machine
and
counter
clockwise
to
raise
the
rubber
stud.
5

PREPARATION
FOR
THREADING
To
open
front
cover,
push
release
lever
to
the
right
and
then
swing
it
to
the
right.
It
will
close
and
be
latched
automatically
by
swinging
it back
lightly,
Fig.
1.
The
side
cover
can be
opened
in
a
similar
mariner.
THREAD
STAND
Push
the
thread
stand
all
the
way
to
the
right
as
the
arrow
indicates
in
Fig.
1. until
it clicks.
To
put
it
back
in
the
position for
storage
with
dust
cover,
push
it
back
all
the
way
to
the
left.
THREAD
GUIDE
POLE
Pull
up
thread
guide pole
to
its
highest
point.
Place
threads
on
spool
pins
and
draw
threads
through thread
guides
on
the
pole
from
rear
to
front,
Fig.
1.
EXTENSION PLATES
AND
SPOOL
HOLDERS
Place
extension
plates
and
spool
holders over
spool
pins
beforehand.
For
large
cone
spools
use
the
rubber
spool
holders
with
the
wide
end
at the
top,
and
for
small
ones, use
the
same
rubber
spool
holders
but
with
the
narrow
end
at
the
top.
SPOOL CAPS
When
using
domestic
cotton
reels,
place
the
reel
directly
on
to
the
spool
pin.
Use
the spool
cap
to
keep
the
reel
in
place.
Fig. 2
Fig.
3
6

FITTING
THE
NEEDLE(S)
Raise
needle
bar
to
its
highest
point
by
turning
hand
wheel
towards
you,
but
leave
presser
foot
down.
Loosen
needle
claml
screw
to
remove
old
needles,
Fig.
4.
Place
new
needles
with FLAT
SIDE
AWAY
FROM
YOU,
up
into
the
groove
of
the
needle
bar,
ensuring
that
they
are
inserted
as
far
as
they
will
go.
Re-tighten
the
needle
clamp
screw
securely.
NEEDLE,
THREAD
AND
FABRIC
CHART
•
.
ThREAD
•
Cottàn
No. 1OO
Polyester
....
No6Q-50
.:No.6o
Polyester:
::
..
No
80
Cotton
No
60
:.
PO.lyeste’.
....
•.
Cotton
No.
60
•.
Polyester
.Cottor[No/60
:Polyester
.:No.io080
PO1ySt..
.
60:
•.
Po!yøster
•
..
::...No.80.
60
:COttbflNG.
80-60.
Polyester
.
No.60-50
Cotton
No.
60
Polyester
Bulk.Nylon
Y•
Fig.
4
Use
HA
X
iSP,
HA
X
1(130/705H)
Needles.
NEEDLE
100
(16)
for
feavy
weight
fabrics: denim
90
(14)
for
general
sewing
75(11)
for
light
weight
fabrics
*
Synthetic
threads are
recommended
for
ordinary
overlocking.
Polyester
thread,
for
example,
is
very
useful
for
different
types
of
fabric.
7

OPERA11NG
INSTRUCTIONS
2.
STARTING
TO
SEW
THREADING
YOUR
MACHINE
1. Raise
the
needle
bar
to
its
highest
point
by
turning
the
hand
wheel
towards
you
by
hand.
2.
Threading must
be carried
out
in
the
following
sequence:
FIRST
lower
looper;
SECOND
upper
looper;
FINALLY
needle
threads.
If
it
is
necessary
at
any
time
to
re-thread
lower
looper,
ALWAYS
remove
the
thread
from
the
needles
to avoid
tangling.
3. Follow
carefully
the
threading
‘paths’
in
the
chart
in
the
machine
(Fig.1)
and
lead
each
thread
through
thread
guides
with
same
symbols
imprinted
—
improper
threading
will
result
in
several
problems
such
as skipped
stitches
and breaking
thread
etc.
4.
To
assist
thread
passing
around
tension
controls
turn
all
four
anti-clockwise
until
they
stop
at
‘0’
setting.
Ensure thread
passes
cleanly through
the tension
discs
and
behind
the
pointed
hook
in
each
case
(see
diagrams-Page
9
and
10).
5. To help
in
threading,
a
pair
of
tweezers
will
be
found
in
the
accessory case.
LOOPER
THREADING
Lower
looper
-
colored
PURPLE
on
chart
and
A
symbols
on
thread
guides.
1.
Draw
thread
from
spool,
as
shown
on
diagram
(page
9)
through
the
thread
guides
and purple
tension
control
(steps
1
-
6).
Then
onto
thread
guide just
inside
machine,
below
lower
looper
(7,
Fig.
2).
2.
Pass
thread
through
lower
looper
eye
(9, Fig.
2)
and
hook
it
around
part
(8) as
indicated
by
the
arrow.
Leave
about
4”
(10
cm)
of
clear
thread.
Upper
looper
-
colored
BLUE
on chart
and
•
Symbols
on
thread
guides.
1. Follow
similar
procedure
as
above,
as
also
shown
on
diagram
page
9,
taking
thread
through
the
thread
guides
and
blue
tension
control
and
threading
though
the
hole
in
the
upper
looper
(see
8, Fig.
3).
Finally,
pass
the thread
under
rear
of
presser
foot,
leaving
about
4”
(10
cm)
of
clear
thread.
7-’
Fig. 2
Fig. 3
8

NOTE:
If
you
are
using
an
overlock
machine
for
the
first
time,
it
may
be
found
an
advantage
to
thread
up
the
first few
times
using
different
colored
threads
(say
similar
to
colors
on
the
tension
controls).
This
will
help
identify
which
is
which
and also
for
adjusting
tensions.
9

NEEDLE
THREADING
Lastly
needle
must
be
threaded.
Follow
the
‘path’
colored
GREEN
on
chart
for
left
needle,
taking
the
thread
around the
green
tension
control
and
through
the
thread
guides
with
I
symbols.
Follow
the
‘path’
colored
YELLOW on
chart
for
right
needle,
taking
the
thread
around
the
yellow
tension
control
and
through
the
thread
guides
with
4’
symbols.
Finally
thread needle(s)
from
FRONT
to
BACK
and
then
under
the
presser
foot,
leaving
about
4”
(10cm)
of
thread(s).
Should
it
be
necessary
at
any
time
to
rethread
the
lower
looper,
ALWAYS
remove
thread
(s)
from
needle(s)
first
to
avoid tangling.
Pull
check
spring
up
and
past
the
pointed
hook
until
thread
can be
slipped
into
the
hook.
When
the
thread
is
released,
the
check
spring
wifl
return
to
original
position
with
the
thread
in
place.
10

TESTING
STITCH
After
threading
is
completed
test
the
machine
stitch
in
the
following
order:
1.
Without
any
material
under
the
presser
foot
(see
Fig.
1),
lower
presser
foot.
Pull
the
ends
of
the
threads
gently
with
your
left
hand
towards
the
rear
of
the machine,
turning
the
hand
wheel
towards
you
a
few
times
with
your
right
hand.
Check
the
stitch
formation
produced
to
see
if
it
is
uniform.
If
not,
re-check
that
threading
has
been
carried
out
correctly.
2.
Now
test
the
machine
again
but
this
time
use
a
spare
piece
of
the
fabric
you
propose
using.
3. After
you
reach
the end
of
the
fabric,
continue
sewing
for
about
3”
beyond
the
end
of
the
fabric
at
slow
speed
and
trim
off
with
a
sharp
pair
of
scissors.
(see
Fig. 2
and
3).
In
order
to be
sure
you
have
the
correct
stitch
and
to
make
any
adjustments
that
may
be
necessary
turn
to page
12.
Fig.
1
Fig. 2
11

ADJUSTING
THREAD
TENSIONS
Thread
tensions
will
vary
according
to
the
type
and
thickness
of
both
thread
and
fabric.
Turning
the tension
controls
clockwise
will
increase
tension
(+)
and
anti-clockwise
(—)
decrease
tension.
All
the
control
knobs can
be
turned
about
1
%
rotations.
The
correct
balance
of
stitch
should
look
as follows:
UPPER
LOOPER
THREAD
should
lie
flat
on
the
top-side
of
fabric
and
lock
with
the
lower
looper
thread
on
the edge
of
the
material.
LOWER
LOOPER
THREAD
should
lie
flat on
the
underside
of fabric
and
lock
with
the upper
looper
thread
on
the
edge
of
the
material.
NEEDLE
THREADS
act
as ‘safety
stitche&
and
should
lie mainly
on
the
top
side
(like
rows
of
normal
straight
sewing)
on
the
upper
looper
thread, and
just
visible
in
the
lower
looper
thread
on
the underside
of
the
fabric.
If
threads
do
not
appear
as above,
adjust
as
follows:
First
turn
all tension
controls
anti-clockwise
until
they
stop
at
the
0’ setting.
Then
turn
each
knob
clockwise
to
the
followings;
left
needle
thread
tension
knob
to
“7”
right to “3”
upper
looper
thread
ii
to “3”
lower
‘I
to “3”
Now
sew
the
fabric
again
and compare
with
Fig.1,
page
13.
If
the
upper
looper
thread
is
seen
to
be
loose,
or
is
pulled
over
to
the
underside
of
the
fabric
(as
Fig.
2,
page
13),
increase
upper
looper
tension
(Blue)
and/or
decrease
lower
looper
tension
(Purple).
If
lower
looper
thread
is
seen
pulled up
onto
the
top-side
of
fabric
(Fig.
3,
page
13),
increase
lower
looper
tension
(Purple)
and/or
decrease
upper
looper
tension
(Blue).
If
left
needle
thread
is
loose and
clearly
visible
on
underside
of
fabric
(Fig.
4,
page
13),
increase
left
needle
thread
tension
(Green)
and/or
decrease
either
or both
looper
threads.
If
right
needle
thread
is
loose
and
clearly visible
on
underside
of
fabric
(Fig.
5, page
13),
increase
right
needle
thread
tension
(Yellow).
A
simple
amount
of
experimenting
will
quickly
achieve
a
correctly
balanced
stitch.
12

Just
right.
Upper
looper
thread
pulled
to
Lower
looper
thread
pulled
to
under
side.
top
side.
Left
needle thread
loose
and
Right
needle
thread
loose and
visible
on
under side
of
fabric, visible
on
under
side
of
fabric.
Increase
left
needle thread
Increase
right
needle
tension
and/or
decrease
either
tension.
or
both
looper
threads.
hi
Fig. 2
Increase
upper
looper
thread
Increase
lower
looper
thread
tension
and/or decrease
lower
tension
and/or
decrease
upper
looper
tension.
looper
tension.
Fig.
4
13

THREE-THREAD
OVER
LOCK
WITH
ONE
NEEDLE
In
addition
to
the four-thread
overlock
mainly
featured
on
this
machine,
it
is
possible
to
produce
simple
three-thread
overlock
stitches
by
threading
only
ONE
needle. Furthermore
it
is
also
possibie
to
achieve
two
different
seam
widths.
By
threading
the
LEFT
needle
only
a
width
of
5
mm
will
be
produced
and
by
threading
the RIGHT
needle
only
a
width
of
2.8
mm
will
be
produced
(see
diagrams
below).
7
3
7
3
Number
of
Th
d
4
Threads
threads
3
rea
S
(described
previously)
Overedge
5
mm
2.8
mm
5
mm
Needle(s)
Use
left
needle
only Right
needle
only Two
needles
Needle
thread
tension
control(s)
Green
control
Yellow
control
Green
control
Yellow
control
14

ADJUSTING
STITCH LENGTH
1.
When
you wish
to
adjust
stitch
length,
open
the side
cover.
2.
Holding
the
hand wheel
tightly
with
your
right
hand,
turn
the
stitch
length
dial
with
your
left
hand
until
the
required
length
appears
in
the
indicator
window.
The
higher
the
number
-
the
longer
the
stitch.
This
dial
allows
for
adjustment
of
stitch
length
from
1
to
5
mm.
RECOMMENDED
STITCH
LENGTH
SETTING
Regular
stitch
1
to 5
mm
3
mm
(standard
setting)
Narrow
stitch
1.5
to
2
mm
Rolled
edge
1
to
2
mm
When sewing
on
stretch
fabrics
or
knits
it
may
be
necessary
to
adjust the
stitch
length
to
different
settings
to
those
shown above.
Because
of
the
wide
range
of
these
fabrics
which
are
now
available,
it
is
not
possible
to
give
specific
settings.
It
is
suggested,
therefore,
that
you
make
several
sewing
tests,
with
various
settings
to
determine
the
most suitable
for
the
particular
job
in
hand.
Indicator
window
15

ADJUSTING
OVERLOCK
STITCH
WIDTH
Stitch
width
can
be
adjusted
by
changing
needle
plate
and
presser
foot.
When
first
delivered
your
machine
will
be
fitted
with
the
standard
5.0
mm
needle
plate
and
presser
foot,
which
will
be
found
suitable
for
most
general
overlocking
requirements.
Your
machine
is
also
supplied
with
a
set
of
needle
plate
and
presser
foot
for
narrow
(about
2
mm)
and
rolled
hems.
These
will
be
found
in
and
your
accessory
box.
Needle
plate and
presser
foot
CHANGING
TO NEEDLE
PLATE
for
narrow/rolled
hems.
AND
PRESSER
FOOT
FOR
NARROW/ROLLED
HEMS
FIRST DISCONNECT
MACHINE
FROM
POWER
SUPPLY
BY
REMOVING PLUG FROM
SOCKET-OUTLET.
During
the changing operation
be
careful
to
keep
fingers
away
from
both
cutters.
1.
Unthread
machine.
2.
Raise
needles
to
its
highest
point
by
turning
hand
wheel
towards
you
and
also raise
presser
foot.
3.
Open
both front
and
side cover
plates.
4.
Loosen thumb
screw(A)
and
remove
presser
foot
in use.
(Fig.
1)
5.
Remove
right
needle
and
use
left
needle
only.
6.
Place
presser
foot
for
narrow/rolled hems
and
secure
with
thumb
screw.
7.
Take
off
needle
plate
in
use
by
removing
screw(C) and
lifting
plate
up
from
guide
pin(B).
(Fig.
1)
8.
Place needle
plate
for
narrow/rolled hems
into
position
and
secure
with
screw(C).
Standard needle
plate
presser
foot.
Fig.
1
16

ALIGNMENT
OF AXED
CUTTER
It
may
be
necessary
to
realign
the
fixed
cutter
for
narrow/rolled
hems
to
accomplish
the
special
effect
you
desire.
1.
Loosen screws(D)
and
align
fixed
cutter(E)
so
that
the
right
side
of
fixed
cutter(E)
lines
up
with
needle
plate
as
shown
in
Fig.
2.
2.
Make
sure
that
the
top
of
fixed
cutter(E)
is
aligned
with
needle
plate
surface
and
then
tighten
screws(D)
securely.
3.
Loosen
screw(G)
and
moving
cutter(H)
will
be
pulled
by
spring
until
it
touches
with
fixed
cutter(E).
Tighten
screw(G)
while
you
push
shaft
end(F)
to right
slightly
by
fingers.
Make
sure
there
is
no
gap
between
two
cutters.
CHANGING
TO
STANDARD NEEDLE
PLATE
AND
PRESSER
FOOT
1.
Remove
presser
foot
and
needle
plate.
2
Put
right
needle
back
into
needle
bar.
3.
Place standard needle
plate.
4.
Loosen screw(G)
and
slide
moving
cutter(H)
right
away
from
fixed
cutter(E)
by
pushing
shaft end(J),
and
then
tighten
screw(G)
tentatively.
.
5.
Loosen screws(D)
and
move
fixed
cutter(E)
to right to
align
its
right
side
with
needle
plate
as
shown
in
Fig.
3.
6.
Tighten
screws(D)
securely
while fixed
cutter(E)
is
held
in
parallel
with
needle
plate.
7.
Loosen screw(G)
and
moving
cutter
will
be
pulled
by
spring.
8.
Tighten
screw(G)
while you
push
shaft
end(F)
slightly to
right
by
fingers.
Make
sure
there
is
no
gap between
both
cutters.
9.
Place
standard
presser
foot.
Fig. 2
cutter
Fig.
3
17

MACHINE
ADJUSTMENT
CHART
FOR
NARROW
AND
ROLLED
HEMS
Narrow
overlock
hems
Rolled
hems
Needle
plate
and
Use
needle
plate
and
presser
foot
for
narrow/rolled
hems
presser
foot
(see
page
16).
Stitch
length
**
1.5to2
1
to2
Needle
75or90(llorl4)
75(11)
Thread
for
needle
Polyester,
Nylon,
Silk
No.
50-100
Nylon
No.
100
Upper
looper
Polyester,
Nylon,
Silk
No.
50-100
Bulk
nylon
(less stretchable)
wer
looper
Bulk
nylon
(less
stretchable)
*
Thread
tension
control
for
left
needle
(green)
Upper
looper
(blue)
Lower
looper
(purple)
*
The
best tensions
for
one
fabric may not
be
correct
for
another.
The
required
tensions
depend
upon
stiffness
and
thickness
of
fabric,
thread
size
and
type.
If
necessary,
readjust
referring
to
the
above
tension
balance
guideline.
* *
When
overlocking
fine,
scart-like’
materials
with
narrow
hem,
set
stitch
length
between
3
-
4
and
decrease
thread tensions
slightly.
One
turn
plus
3
18