Husqvarna HUSKYLOCK 400 User manual

HANDBOOK
FOR
HUSKYLOCK
)
I/(
7
/
MODEL
440
/
‘
K
I

WIRING INSTRUCTION
Only for
the British
rnarketl
When
changing
plug wiring
should
be
effected
according
to
the instruction
below.
Check
the
voltage
ittlore
connecting
the
sewing
machine
to
an electrical
supply
ensure
that
the
voltage
marked
on
the
rating
label
of the machine is the
correct
voltage
for
your
electrical
supply.
if it
is
not,
do
not use
the
machine
but
refer back
to
your
dealer.
Connecting to your
Electricity supply
I
he
sewing
machine
has a
flexible
two
core
mains
lead
permanently
connected
lii
the loot control. At the
free
end
of the
lead
a suitable
plug should
be
fitted.
Important
ti
wires
in the
mains
lead
of
this
appliance
are
coloured
in
accordance
with
the
Ii
lh>wing
code:
BLUE:
NEUTRAL
BROWN:
LIVE
As
the colours
of
the
wires
in
the
mains
lead
of
this
appliance
may
not
corres
,nd
with the
coloured
markings
identifying
the terminals
in
your
plug,
proceed
I
nIh
iws:
lie
wire
which
is
coloured
blue
must
be connected to the
terminal
which
is
iii.it
Led
with
the letter
N
or coloured
black.
The wire
which
is
coloured
brown
lOll
he
connected
to
the
terminal
which
is marked
with the
letter
L or
coloured
using
a
3pin
plug
do not
make any
connection
to
the
terminal marked
with
lhe letter
L
or
by
the
earth
symbol
or
coloured
green
or green
and yellow.
Your
I lnsqvarna
sewing
machine
is
double
insulated
and
no earth
connection
is
II
I . ittip
Fused
plug is
used,
it
should
be fitted
with
a
3
amp
fuse.
It is
in your
wit
inittesi
to
ensure
that
the plug
is
correctly
fitted
to
the
mains
lead. If
in
liitht
cottsult
a
qualified
electrician,
as
Husqvarna
Limited
cannot
regard
the
Cpu!
d
littl
Is on
the plug
connection
as
a
service
that can
be
given
free
of
lii
0
under
the
lerms
ol
the
guarantee.
is
lpIiIiri
e
conIorns
with
the
requirements
ot
E.E.C.
directive
No.
76/889
itlillIli’
to
.idio
inlertetence.

Thank
you
very
much
for your
purchase
of an
Over!ock
sewing machine.
You
have
just
purchased
an
overlock
sewing
machine
for
sewing
all
kinds
of
fabrics——cotton,
wool,
rayon,
tricot,
jersey,
knitted
goods—thick
or
thin.
You
cannot
be
other
than satisfied with
its
perfect
and
beautiful stitches
and
its
long
operating
life.
But,
however
excellent
this
sewing
machine
may
be,
it
cannot
operate
its
fullest
capacity
unless
it
is
handled
correctly.
Please
read
the following
instructions
carefully
so
that
your
new
sewing
machine
will
give
you
complete
sewing
enjoyment
for
years
to
come.

TABLE
OF
CONTENTS
Names
of
Parts
and
Their
Functions
3
Direction
of revolution
4
Opening
and
closing
the
front
cover
4
Replacing
the
material
guide
for
double-chain stitches
5
Needle
6
Changing
the
light
bulb
7
Operating
7
Threading
9
Preparation
9
Threading
looper thread
for
double-chain stitches
10
Threading
spreader thread
for
overlock stitches
Ii
Threading needle
thread
for
overlock
stitches
12
Threading
needle
thread
for
double-chain
stitches
13
Kinds
of
stitches
14
I.
Safety
stitch
14
2.
Double-chain
stitch
14
How
to
disengage
the upper
blade
14
How
to disengage
the spreader
15
3.
Overlock
stitch
15
Test-sewing
16
Chaining-off
16
Ratio
chart
of
sewing
material,
needle
and
thread
1 7
Thread tension
18
Correct thread
tension
18
An
example
19
Sewing
pitch
and
size
of bite
20
Sewing
pitch
20
Size
of
bite
20
To
adjust
the
stitch
tongue
21
Presser
foot
pressure
22
Sewing
23
To
start
sewing
23
To
remove the
work
23
When
threads
break during
sewing
23
To
sew
thick material
24
To
sew
fine
material
24
Fault-finding
25
Replacing
the
blades
26
Oiling
27
Machine
specification
27

Names
of
parts
and
their
functions.
Upper
thread
tension
dial
(for
double-chain
stitch)
Lower
thread
tension
dial
(for overlook
stitch)
Front
cover
Material slide
plate
(for overlock
stitch)
—
3—

Directon
of
Revolution
*The
motor
of
this rnachinc
runs
in
a
clockwise
direction
(arrow
direc
tion),
which
is
the opposite
direc
tion
to
the
motor
of
an ordinary
home
sewing
machine.
Opening
and
closing
the
front
cover
When
threading,
you
will
need
to
open
the
front
cover.
Note:
When
sewing,
be
sure
to close the
front
cover.
To open
the
front
cover
Move
the knob
on
the front
cover
in
the
direction
of
the
arrow
and
pull
it
open.
To close
the
front
cover
Push
the
front
cover
by
hand
as
shown
in
the left
figure.
4—

Replacing
the
material
guide
for
double.chain
stitching
4.
Insert
the material
guide
double-chain
stitch.
How
to
use
material
guide
IdIe
for
double-
chain
stitch
1.
Open
the
front
cover and
dis
engage the
spreader
by
loosening
the spreader
screw.
2.
Turn
the
upper
blade
until
it
is
locked.
Disengage
the
upper
blade
by
turning
it
upward.
Material
guide
for
double-chain
stitch
3.
Remove
material
slide
plate
for
overlock
stitch.
for
Edge
of
material
L
Material
S.
Close
the
front
cover.

Neede
*TE
X 1
(#11 &
14)
or
DB X
1 (49,
411
414)
can be
used
with
this
machine.
TE X
1 (#1
1) is
mounted
on
the machine.
To remove
the needle
(1)
Turn
the pulley
clockwise
by
hand
until
the needle
is
raised
to
the highest
position.
(2)
Loosen
the needle
set screw
with the
screwdriver
(turn
left)
and
remove
the
needle.
NOTE:
When
removing
the
needle,
hold
the
needle
with
the tweezers
to
avoid
dropping
it.
To
fit
the
needle
(1)
Turn
the pulley
until
the needle
bar
is
raised to
the
highest
position.
(2)
Hold
the
needle
with
its
long
grooved
side
to the
front
and
insert
it
as
far
as
the
needle
stop.
(3)
Tighten
the
needle
set
screw
securely,
taking
care
that
the
needle
is
set
in
the
correct
position.
Needle
set screw
bar
Needle
stopper
Needle
set
Long
groove
toward
you

Operating
*
If your
machine
is
provided
with
the
light;
Changing
the
light
buth
Undo the
two upper
screws on
the
back
of
the machine,
remove
the
cover
and
screw
the
light bulb
out.
Insert
the
new
bulb
and
screw
the
cover
in place.
Use
light
bulbs
designed
for
15
Was
indicated
on
the
lamp
holder.
Preparation
*
Insert
the
three-pin
plug
into
the
socket
of
the
motor
and
insert
the
power
supply
plug
into
the
elec
tric
outlet.
Operation
When
the
pedal
is
lightly
depressed,
the
machine
runs at
low
speed
and
as
it
is
depressed
further,
the
machine
will
pick
up
speed.
When
the
pedal
is
released,
the
machine
will
stop.
Light
switch....
/
k
/
I
—7—

NOTES
ON
THE MOTOR
r
The
normal
operating
speed
of
this
sewing machine
is
1,500
stitches
per
minute,
which
is quite
fast
compared
to the normal
operating
speed
of
300 to
800
stitches per
minute
for
the
ordinary
foot-operated
home
sewing
machine.
It should
be
noted
that
the
motor
of this
sewing
machine
runs
in
the opposite
direction
to
the
motor
in
an
ordinary
home
sewing
machine.
*
The
motor
has bearings
made
of
a
special
sintered oil-impregnated
alloy
wrapped in
oil-soaked
felt to
withstand
long
hours
of
continuous
operation.
Continuous
operation
of
the
sewing
machine
warms
up
the
motor
and
the
controller
to
some
extent,
but not
enough to adversely
affect its
perform
ance.
The
motor
and
controller
are
equipped
with
ventilating
holes, which
must not
be
covered up
with
cloth
or
paper
during
use.
*
When
the
motor is
running,
sparks
can
be seen
through the
ventilating
hole
in
the
motor
bracket
on
the
side
opposite
to
the
pulley. These sparks
are
pro
duced by
the
carbon
brushes
and
the
commutator,
and
are
of
no
significance.
For
England
Safety
regulations
for
domestic
sewing
machines
in
conformity
with
“CEE
Publication
No. 10,
Part
II,
Section
C,
Article
7.1”.
When
the
machine
is
not
in
use,
or
when
threading
or
replacing needle
or
blades,
the machine must
be
disconnected
from
the power
supply
by
removing the
plug
from the
wall
socket.
Use
bulbs
designed
for
max.
15
W
(wattage).
The machine
has
an
interference
suppressor
for
radio
and
television,
complying
with
Directive
No.
76/889
E.E.C. and
C.l.S,P.R.
CAUTION
WHEN
THREADING,
REPLACING NEEDLE
OR
BLADES,
OR
WHEN
MACHINE
IS
NOT
IN
USE,
IT
IS
RECOMMENDED
THAT
THE
ELECTRIC
SUPPLY
PLUG
IS
DISCONNECTED
TO
AVOID
ANY
POSSIBLE
HAZARDS.
—8-

Threading
Raise
the
spool
pin
right
up
and
set
it
by
the
positioning
stopper
at the
joint
of
the
upper
and lower
sections of
the
pin.
Make
sure
that
the
thread
holders
are
right above
the
reel
support.
Preparation
—9—

*
Incorrect
threading
makes sewing
impossible.
So
set
the
threads
correctly
as
shown below.
To
facilitate
threading,
there
are
coloured indication
marks on
the
front
panel
of
this
machine.
Threading
looper
thread
for
doubIechain
stitches
Run
the
thread
from
1
in
order.
j
10—

Threading
spreader
thread
for
ovedock stitches
*
Run
the
thread
from
#1
in
order.
11

Threading
need’e
thread
for
ovedock stitches
*
Run
the
thread
from
#1
in
order
r
0
— NeedIa
for
overlock
stitch
NOTE:
0
L
Thread
0
0
Thread the
rear
needle.

Threading
needle
thread
for
double-chain
stitches
*
Run the
thread
from
#1
in
order.
NOTE:
When
you
use
a
wooden
thread
reel,
use
the
spool
thread
cap
as
illustrated
in
the
right
picture.
Make
sure
that
each
thread
runs
between
the
two
parts
of
the
thread
tension
discs.
__\.
I
L..
--—Thread
Thread
tension
discs
13

Kinds
of
Stitches
r
This
sewing
machine
can
form
three
kinds
of stitches
with
simple
steps
as
mentioned
below.
1.
Safety
stitch
Use
all the
four
threads
for
producing
safety stitches,
which
neatly
fit
all
kinds
of
materials
varying
in
thickness.
*See
Pages
7-11
for
the
thread
ing
procedure.
Use:
For
sewing
sleeves
onto
the
body
of
shirts, blouses,
and
dresses; and
for
sewing
up
their
bodies.
2.
Double-chain
stitch
Beautiful
double-chain
stitches
can
be
made with
only
the
double-chain
stitch
needle
thread
and
double-chain stitch
looper
thread.
*See
Pages
8
and
11
for
the
threading procedure.
Use:
For
sewing up
the
parts
of knitted
and
jersey
garments.
When
sewing
double-chain stitches,
disengage
the
upper
blade
and
spreader
according
to
the following
steps.
How
to
disengate
the
upper
blade:
Lower the
needle
to
its lowest
position.
(I)
Push
the
upper
blade
holder
to
the
right
as
far as
it
will
go.
(2)
Keeping
pressure
to
the right
push
blade
up .ind
away
from
you.
--
14

How to
disengage
the
spreader:
Turn the
pulley
to
raise
the
needle
to
the
highest
position
and
turn
the spreader
screw
with
the
screw
driver
to
the
direction
the
arrow
points to,
and
then the spreader
for overlock stitch
can
be
removed.
In
case
of
overlock
stitch
or
safety
stitch, turn
the
pulley until
the
needle
is
raised to
its
highest
posi
tion
and
tighten
screw
setting
A
and
B
pnrtion
to
be
parallel
by
finger.
3.
Overlock
stitch
Beautiful
overlock
stitches
will
be
formed by
use
of
only
the
overlock
stitch
needle
thread
and
overlock
stitch
spreader
thread
*See
Pages
9
and 10
for
the
threading
procedure.
Use:
For overlock
stitching
suits,
blouses,
slacks, etc.

Test-sewing
*Testsew
after threading.
(1) Place
material
for
test-sewing
well
under
the
presser
foot.
Hold
the
two
needle
threads
with
your
left
hand,
turn
the
pulley slowly
a
few
turns
in
a
clockwise
direction
with
your
right hand,
and observe how
the
threads entwine
themselves
before
starting
sewing.
*After
test-sewing,
hold the
[oot
control
depressed
slightly
for
a
while
(chaining
off.)
The
four
threads
will
entwine
themselves
like
a
chain and
will
feed
auto
matically.
NOTE:
if
the
balance
of
the
thread
tension
for
the
four
threads
is
not
correct,
uneven
chaining-off
will
result.
In
this
case,
pull
the
threads
slightly.
Chanrng-off
—16
—

Ratio
Chart
of
Sewing
Material,
Needle
and
Thread
Sewing
,dsot
Stitches
f
Sbtch
J
Thread
is1
———
LL
-—
Safety
Stitch
20-3.0mm
——Cotton
:80-100
Fine
Double-chain
Stitch
I
2.0-3.0mm
No.11
1
4
H—
-
—- 1 Silk
:80-100
Overlock
Stitch
3.0-4.0mm
H—
SafetyStitch
23mrn
Cotton:60-80
No.11
Medium
Double-chain
Stitch 2.0-3.0mm
Silk
:
50-
80
3
6
——
-—
—
No.14
Overlock
Stitch
3.0-4.0mm
Synthetic
50-
80
_
-
4
-
--
-
-
-
-
I
Safety
Stitch
2.5-3.5mm
Cotton
:
40-
60
Heavy
ouble-chain
Stitch
2.5-3,5m
Silk
:
40-
60
No.14
•
h---
-
OverlockStch
3.0-4.0mm
Synthebc
:
30-
60
Safety
Stitch
3.0-4.0mm
Cotton
:
40-
60
—
-.
——
No.11
•
Knit
Double-chain
Stitch
2.5-3..rnm
Silk
.
40-
60
1ock
Stitch
:
NOTE:
1
.
The
calibration
on
the
tension
dial
is
like
the
figure
below.
2.
Do
not
pull
the tension
dial
knob.
3.
When
the
tension
dial
is
moved
to
the
right,
it
will
show
‘2”.
4.
The
thread
tension
shown
in
the above
chart
is
based
on
standard
sewing
conditions.
Depending
on
the
sewing
conditions,
adjust
the
thread
tension referring to
“Thread Tension”
on page
16.
When
you
hem on
two
layers
of
material or
more,
some
tension
adjust
ment
is needed,
especially
for
sewing over
bulky
seams.
—
-
-
?tTENSON
DIAL
-
—n
—
‘,
—i—-
——-
GENERAL
USE
FOR
THIN
——
FOR MEDIUM
FOR
HEAVY&
KNIT
—17
-

Thread Tension
*The thread
tension
of
this
machine
can
be
adjusted
by
four
thread
tension
adjusting
dials
of
the
two needle
threads,
looper
thread
and
spreader
thread.
The
correct
thread
tension
varies
with
the kind
of
fabric,
thickness
of
threads,
etc.
So,
adjust
the
thread
tension
as
required
in
each
particular
case.
By
turning
the
dials
clockwise
the
tension
will
increase
and
by
turning
counterclockwise
the
tension
will
slacken.
Adjusting
the
thread
tension
(1)
Select
the
correct
tension,
referring
to
the
above
illustration.
(2)
If
you
cannot
find the
proper
tension,
refer
“An
e\amp(e’
on
page.
the
following
Correct
Thread
Tension
(A)
Double-chain
stitch
(B)
Overlock
stitch
-
LJppr
thread tension
dial
erIock
stitch)
Upper
thread
tension
dial
(for
double-chain
stitch)
Lower
thread
tension
dial
(for
overlock stitch)
-
*Adjust
the
four
tension
dials
together
in
order
to
get
a perfect
sewing
stitch.
*
Less
tension of
looper
thread for
double-chain
stitch
is
required.
1
8