Huskylock 340D User manual

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This
booklet
has
been
written
for
you,
to
help
you
use
and
enjoy
fully
your
overlocking
machine.
Before
you
start
to
use this
machine,
please take
a
few
minutes
to study
this booklet.
You
will
find
it
will
be
time
well
spent
in
understanding
your machine.
If
you
have
any
questions
regarding the
use
of
your
overlocking
machine please do not
hesitate
to
contact
your dealer
or
ourselves.
HUSKYLOCK
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.
340D
Retain
these
numbers
for
future
reference.
VIKING
SEWING
MACHINE
CO.,
11750
Berea
Road
Cleveland
OH 44111
U.S.A.
HUSQVARNA
SEWING
MACHINES
1470
Birchmount
Road
Scarborough,
Ontario
Canada
MIP
2G1

TABLE
OF
CONTENTS
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
6
Thread
stand,
Thread guide
pole,
Extension
plates and
spool
holders,
Spool
caps
Fitting
the
needle(s),
Needle,
thread
and
fabric
chart
7
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
stitch
width
16
Changing needle
plate
and
presser
foot
16
Machine
adjustment
chart
for
narrow and
rolled
hems
17
Differential
feed
18
Positive
differential
feed
18
Minimal
differential
feed
18
Setting
differential
feed
19
Overlock
edge
finish
20
Fabric
21
Thread selection
21
Removing
stitches
from
sewn
fabrics
21
Narrow
and
rolled
hems
22
Applications
22
Finish
seams
23
Outside
corners
24
Inside
corners
and
angles
25
Outward
curve
26
Turning
curved
edges
26
Decorative
effects
27
-
29
Pin
tucks,
Decorative
edges,
Decorative
braids
Corded
overlock
30
Four-thread
overlock
on
knitted
material
31
Quilting
squares/triangles/diamonds
31
Differential
feed
applications
32
CARING
FOR
YOUR
MACHINE
Replacing
moving
cutter
33
Changing
light
bulb
33
Cleaning
and
oiling
34
CHECKING
PERFORMANCE PROBLEMS
35
SPECIFICATION
OF
MACHINE
36
OPTIONAL
ACCESSORIES
AVAILABLE
FOR
YOUR
HUSKYLOCK
37-38

KNOWING YOUR
MACHINE
IDENTIFICATION
CHART
Thread guide
pole
Looper
thread
guide
Right
needle
thread
tension
control
Looper
thread
guide
Spool
pin
Spool
holder
Extension
plate
Thread plate
looper
thread
tension
control
Lower
looper
thread
tension
control
Hand
wheel
• Plug
connector socket
Light
and
power
switch
—
Front
cover
release
lever
Front
cover
Needle
thread
guides
Accessory
case

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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.
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.
/
Spanner
No.
11449
Screw
driver
(large)
No.
1627
Screw
driver
(small>
No,
1628
Brush
No.
11450
Tweezers
Looper
threader
No.11556 No.11424
Oiler
x2
No.
1613
Moving
cutter
No.
11420
Needles
No.
11550
Spoolcapx4
No.
11423
Needle plate
for
narrow!
rolled
hems
No.
11605
iDD
Extension
plate
x
4
No.
6106
Presser
foot
for
narrow/rolled
hems
No.
11562
Detachable cord guide
No.
11497
Machine
cover
No.11513

;ETrING
UP
YOUR
MACHINE
I. Set your
sewing machine
on
a
sturdy,
flat
surface.
.
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.
L
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,
or
when
removing
covers
or
changing
lamps,
the
machine
MUST
be
disconnected
from
the
supply
by
removing
the
plug
from
the socket-outlet.
5.
ADJUSTING
MACHINE
BALANCE
In
order
that
you may
be
able
to
compensate
for any
uneveness
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

I,
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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
manner.
THREAD
STAND
Push
the thread
stand
all
the
way
to
the
right
as the
arrow
indicates
in
Fig.
1
until
it
clicks.
position
for
push
it
back
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
Remove
the
spool
holders
and
place
the
extension
plates
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
urbber
spool
holders
but
with
the
narrow
end
at
the
top.
SPOOL
CAPS
When
using
domestic
cotton
reels,
place
the
reel
directly
on
to the
spooi
pin.
Use
the
spooi cap to
keep
the
reel
in
place.
I
guide
pole
To
put
it
back
in
the
storage
with
dust
cover,
all
the
way to
the
left.
Release
lever
Cone type
thread
Fig.
1
Fig2
plate
Spool
cap
Domestic
thread
Fig.3

1)
/tj/UU
flTING
THE
NEEDLE(S)
aise
the
needle
bar
to
its
highest
point
by
Jrning
the
hand
wheel
towards
you,
but
ave
the
presser
foot
down.
oosen
the
needle
clamp
screw
to remove
Id
needles,
Fig.
4.
Place
new needles
with
LAT
SIDE
AWAY
FROM YOU,
up into
the
roove
of
the
needle
bar,
ensuring
that
they
re
inserted
as far
up
as
they
will
go.
e-tighten
the
needle clamp
screw
securely.
IEEDLE,
THREAD
AND
FABRIC
CHART
se
HA
x
1
SP, HA
x
1
(130/705
H)
Needles.
FABRIC THREAD
NEEDLE
Light
Weight:
Organdie,
Lawn,
Gingham
Polyester
No.80-60
Cotton
No.
80-60
Polyester
No.60-50
Bulk
Nylon
100(16)
for
heavy
weight
fabrics: denim
90(14)
for
general
sewing
75
(11)
for light
weight
fabrics
side
away
from
you.
COTTON
LINEN
Heavy
Weight:
Oxford, Denim,
Cotton
Gabardine
Cotton
No.
100
Polyester
No.
60-50
Cotton
No.
60
Light
Weight:
Polyester
Tropical,
Wool,
Poplin
No.
80
Cotton
No.
60
Serge
Gabardine,
Flannel
Polyester
WOOL
No.80-60
Cotton
No.60
Heavy
Weight: Polyester
Velours,
Camelhair,
Astrakhan
No.
60
-
50
Cotton
No.60
Light
Weight:
Polyester
Georgette
Crepe.
Voile,
Satin
No.
100
-
80
SYNTHETIC
Cotton
No,
120-80
FIBRE
Heavy
Weight: Polyester
Taffeta,
Twills,
Denim
No.
60
Cotton
No.60
Tricot
KNIT
Jersey
Polyester
No.60-50
Cotton
No.
60
Wool
Synthetic
threads
are
recommended
for
ordinary overlocking.
Polyester
thread,
for
example,
is
very useful
for
different
types
of
fabric.
-7

UI
Lj
UV
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
threads
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-Pages
9
and
10).
5.
To
help
in
threading,
a
threader
and
tweezers
will
be
found
in
the
accessory
case.
F
2
Lower
looper-
colored
PURPLE
on
chart
and
19.
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
- 7). Then
onto
thread
guide
just
inside
machine,
below
lower
looper
(8,
Fig.
2).
2.
Insert
threader
through
left
hand
hole
of
lower
looper
(from
right
to
left
-
see
9,
Fig.
2).
hook
round
thread, and
draw
back
through same
hole
(9).
3.
Unhook
thread
from
threader
and
then
pass
it
through
hole
at
far
right
of
lower
looper
(10, Fig.
3)
and
draw
back
under
rear
of
presser foot,
leaving
about
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.
4).
Finally,
pass
the thread
under
rear
of
presser
foot,
leaving
about
10
cm of
clear
thread.
STARTING
TO
SEW
Fig.
1
LOOPER
THREADING
Fig.3
Fig.
4
0

U
I//i/LUU5
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.
Th
-
Threading
tension
controls
Thread
between
two discs.
Upper looper
thread
Lower
looper
thread
7)•
-

01/23/2008
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
S
symbols.
Follow
the
‘path’ colored
YELLOW on
chart
for right
needle,
taking
the thread around
the
yellow
tension
control
and through the
thread
guide with
4
symbols.
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 will return
to
original position with the thread in place.
Finally thread needle(s)
from FRONT to
BACK
and then under the presser
foot,
leaving about 10 cm of
thread(s).
Should
it
be
necessary
at any time to re
thread the
lower looper, ALWAYS
remove
thread(s)
from
needle(s)
first to avoid
tangling.
.t.
Check
spring

01
/i/IUU8
ESTING
STITCH
fter
threading
is
completed
test
the
nachine
stitch
in
the
following
order:
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.
Now
test
the
machine
again
but
this
time
use
a
spare
piece
of
the
fabric
you
propose
using.
L
After
you
reach
the
end
of
the
fabric,
continue
sewing
for
about
5-7
cm
beyond
the
end
of
the
fabric
at
slow
speed
and
trim
off
with
a
sharp
pair
of
scissors. (See
Figs 2
and
3).
n order
to
be sure
you
have
the
correct
titch
and
to
make
any
adjustments
that
may
e
necessary
turn
to
page
12.
Fig.
1
Fig.3
11
I
Fig.2

01/23/2008
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
stitches’
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
following
settings;
left needle
thread
tension
knob
to
“4”
right
“ to
“2”
upper
looper
thread
“ to
“3”
lower
“ 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.
Right
needle
thread
tension
control
Lower
looper
tension
control
Left needle
thread
tension
control
Upper
looper
tension
control

01/23,2008
ust right.
eft needle
thread
loose
and
isible
on
under
side
of fabric.
ncrease
left
needle
thread
ension
and/or
decrease
ither
or both
looper
threads.
Upper looper
thread
pulled
to
under
side.
Increase
upper
looper
thread
tension
and/or
decrease
lower
looper
tension.
Right
needle
thread
loose
and
visible
on
under
side of
fabric.
Fig. 5
Increase
right
needle
thread
tension.
Lower
looper
thread
pulled
to
top
side.
Lower
looper
thread
Increase
lower
looper
thread
tension
and/or
decrease
upper
looper
tension.
Under
side
Under
side
Right
needle
thread
Top
side
Fig.
1
Fig.2
Topside
Fig.
3
Fig.
4

01
/232008
THREE-THREAD
OVERLOCK
WITH ONE
NEEDLE
In
addition
to
the four-thread
overlocking
mainly
featured
on
this
machine,
it
is
possible
to
produce
simple
three-thread
overlock
seams
by
threading only
ONE
needle.
Furthermore
it is
also
possible 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).

01/23/2008
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 hem
1 to
5
mm
3
mm
(standard
setting)
Narrow hem
1.5 to
2 mm
Rolled hem
1 to
2
mm
When
sewing
on
‘stretch
fabrics’ or
‘knits’
it
may
be advisable
to
adjust
the stitch
length
to
quite 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
Stitch
length
dial
Hand
wheel
15

01/23/2008
ADJUSTING
OVERLOCK
STITCH
WIDTH
Stitch
width can
be
adjusted
by
changing
the
needle
plate.
When
first
delivered
your
machine
will
be
fitted
with
the
standard
5.0
mm
needle
plate, 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
and
rolled
hems.
These will
be
found
in
your
accessory
box.
R
Presser
foot
for
narrow!
rolled
hems
CHANGING
NEEDLE
PLATE
AND
PRESSER
FOOT
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
needle 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
screw
(A)
and
remove
presser
foot
in
use.
Place
new
presser
foot
into
position
and
secure
with
screw
(A).
5.
Take
off
needle plate
in
use,
by
removing
screw
(C)
and
lifting
plate
up
from
guide
pin
(B).
6.
Place new
needle plate
into
position
and
secure
with
screw
(C).
5mm
Narrow
(about
2
mm)
and
rolled
hems

01/23/2008
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. 50100
Bulk
nylon (less
stretchable>
Bulk nylon
(less
stretchable)
Lower
Looper
*Thread
Tension
Control for
Needle
(yellow>
(Thread
through
4
Check
Spring.)
Upper
Looper
(blue)
o.
Lower
Looper
(purple)
plus
3
One
tur
*
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.
* *
When
overlocking
fine, ‘scarf-like’
materials
with
narrow hem,
set stitch
length between
3
- 4 and
decrease
thread tensions
slightly.
4—,

01/23/2008
Differential
feed
dogs
DIFFERENTIAL
FEED
The differential
feed
has two independent
feed dogs,
on front
(A)
and one
rear
(B).
Each
feed
dog has
an individual
feed
mechanism
which
enables
the feeding
of
material at
a
different
ratio.
POSITIVE
DIFFERENTIAL
FEED
WHEN
SET
FOR
POSITIVE
DIFFERENTIAL
FEED, the
front
feed
dog
(A)
makes
a longer
stroke than
the
rear
feed dog
(B).
This
has
the
effect of
accumulating
material
under
the
presser
foot to offset
the wavering
on the
fabric.
MINIMAL
DIFFERENTIAL
FEED
WHEN
SET
FOR NEGATIVE
DIFFERENTIAL
FEED,
the front
feed
dog
(A)
makes a
shorter
stroke than the rear feed dog
(B).
This
has
the effect
of
stretching
material
under the
presser foot
to
offset the
puckering
on the
fabric.
Positive differential
feed
Minimal
feed