Universal UN50 Manual de usuario
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Features
and
Parts
2
Needle
and
Thread
Chart
3
Inserting
the
Needle
4
Winding
the
Bobbin
4
Threading the
Bobbin
Case
5
Placing Bobbin
Case
in
Shuttle
5
Upper
Threading
6
Setting
the
Stitch
Length
7
Sewing
in
Reverse
7
Adjusting
the
Tensions
7-8
Feeding
of Fabric
8
Thin
or
Light Weight
Fabrics
9
Darning
and
Monogramming
9
Preparing to
Sew
10
Removing
the
Work
10
INDEX
Straight Stitching
11
Zigzag
Sewing
11-12
Satin
Stitch
12
Blind
Stitch
Hem
13
Sewing on
Buttons
14
Making
Buttonholes
15
Narrow
Hemmer
16-17
Embroidering
with
a
Hoop
17
Cording
&
Zipper
Foot
18
Quilting
Guide
19
Seam
Guage
or
Cloth
Guide
19
Care
and
Maintenance
of
Your
Machine
20
Cleaning
and
Oiling
the
Shuttle
21
Accessories
22
Check
Up
for
Smooth
Sewing
23
2
FEATURES
AND
PARTS
1.
Thread
Takeup
Lever
2.
Pressure
Release
(Darning>
3.
Arm
Thread
Guides
4.
Top
Plate
5.
Blind
Stitch
Lever
6.
Z-Bdial
7.
Bobbin
Winder
8.
Hand
Wheel
9,
Stitch
Length
Control
Dial
10.
Drop
Feed
Buttons
11,
Push
Button
Reverse
12.
Tension
Regulator
13.
Needle
Clamp
14.
Needle
Plate
15.
Feed
16.
Bobbin
Cover
Plate
17.
Presser
Foot
18.
Presser
Foot
Thumb
Screw
19.
Thread
Cutter
20.
Thread
Bar
and
Guide
21. Face
Plate
22. Lamp
Switch
23.
Presser
Bar
Lifter
24.
Head Hinge
Mounting
Holes
25.
Motor
Belt Cover
26.
Stop
Motion Knob
27.
Spool
Pins
I
Fig.
1
3
NEEDLE
THREAD
FABRIC
STITCHING
GUIDE
Machine
Silk
Needle
Stitches
Cotton
Mercerized
or
Fabric
No.
Per
Inch
Thread
Thread
Nylon
Extremely
heavy
6
10
tarpaulin,
sacking,
19
to
to
Heavy
Duty
canvas,
duck,
etc.
8
30
Heavy
upholstery
8
30
fabric, ticking,
18
to
to
Heavy
Duty
denim,
leatherette
10
40
Medium heavy
drapery
10
40
fabric, velveteen,
16
to
to
Heavy
Duty
suiting,
felt,
terry,
etc.
12
60
Medium
broadcloth,
12
60
percale,
gingham,
linen,
14
to
to
50
A
chintz,
taffeta,
sheer
14
80
wool,
shantung,
etc.
Sheer
voile,
lawn,
14
80
dimity,
crepe,
to
to
50
A
handkerchief
linen,
11
16
100
..
(Plastic
film)
plastic
film, etc.
8
to
10
Very
sheer
chiffon,
16
100
batiste,
lace,
organdy,
to
to
50
A
ninon,
net,
marquisett,
etc.
9
20 150
4
INSERTING
THE
NEEDLE
See
Fig.2.
Raise
the
needle
bar
(1’
to
its
highest
point,
i.JJ
turning
hand
wheel
toward
you
by
hand.
Then
loosen
the
needle
clamp
screw
and
the
needle
can
be
inserted
into
clamp
©.
Place
needle
(Fig.3,
flat
side
to
right)
in
the
needle
clamp
and
push
it
upward
as
far
as
it
will
go
into
the
needle
flat
side
clamp hole,
tightening
the
needle
clamp
screw
securely
with
a
screw
driver.
After
changing
the
needle,
make
one
complete
revolu
tion
of
the
hand wheel
by
hand
to
be
sure
the
needle
is
in
the
correct
position.
WINDING
THE
BOBBIN
Fig.3
Disengage
the
hand
wheel
(ID.
Fig.4)
from
the
stitching
mechanism
by
turning
the
clutch
((,
Fig.4)
toward
you
or
counter
clockwise.
Place
a
spool
of
thread
on
one of
the
spool
pins
and
lead
thread
around
one
set of
arm
thread
guide
(©.
Fig.
4).
Run
end
of
thread
through
a
hole
in
the
bobbin
edge
and
place
bobbin
on
spindle
of
bobbin
winder
(®..
Fig.
4)
fitting
the
notch
on
bobbin
over
small
pin
on
spindle.
Push
bobbin winder
lever
(,
Fig.
4)
against
bobbin.
Hold
thread
end loosely
and
start
machine
slowly.
Bobbin
will
stop
winding
when
it
is
filled.
Turn
clutch
away from
you
until
sewing
mechanism
is
again engaged
so
that
needle
moves
when
you
turn
the
hand
wheel.
Break
off
loose
thread
end
used
to
start
the
winding.
44
I
.‘
1
Fig.
4
5
THREADING
THE
BOBBIN
CASE
Step
1
(illustrated
in
Fig.
5)
Hold
bobbin
case
between
thumb
and
forefinger
of
left hand,
so
that
the
slot
in
the
edge
of
the
bobbin
case
is
on
top.
Take
the bobbin
between
thumb
and
forefinger
of
right
hand
so
that
the
thread
on
top
leads
from
left to
right.
Step
2.
Insert
bobbin into
bobbin
case,
pull
the thread
into
the
slot
of the bobbin
case
as
shown
in
Fig.
6,
and draw
it
under
the
Tension
spring and
into
the
fork-shaped
opening
of
the
spring
as
shown
in
Fig.
7.
PLACING
BOBBIN
CASE
IN
SHUTTLE
Open
bobbin
case
cover
plate
left
of
the
needle.
(See
,
Fig.
1)
See
Fig.
8.
Hold
the
bobbin
case
latch,
(J,
between
the
thumb
and
forefinger
of
the
left
hand, with
at
least
three
inches
of
thread
running
from
the
top
of
the
bobbin
case
to the
right.
Insert
and
center
the
bobbin
case
on
the
stud
of
the
shuttle
hook
.
Be
sure
the
bobbin
case
finger,
®,
is
opposite
the
shuttle
race
notch,
®.
Press
the
bobbin
case
©
into
the
shuttle
as
far
as
possible
until
latch
catches
on
the
center post
of
the
shuttle.
THEN
release
the
bobbin
case
latch,
.
Press
bobbin
case
again
after
latch
has
been released
to
make
sure
the
bobbin
case
is
locked
securely
in
place.
Close
the
cover
plate.
Fig.
5
Fig.
6
Fig.
7
Fig.
8
B
UPPER
THREADING
SINGLE
NEEDLE
1.
Turn
the
hand
wheel
toward
you
to
raise
the take-up
lever
and
needle
to
their
highest
position.
2.
Place spool
of
thread
on
spool pin,
3.
lead
thread through
hole
in
arm
thread
guide,
4.
down
and
around
one
set
of
tension
discs
from
right
to
left,
5.
into
notch
on
the
right
hand
side
of check
spring
over
threaded
discs
6.
under thread
guide bar
(©,
Fig.
10)
7.
Up
into
take-up
lever
from
right
to
I
left.
8.
Down
through
guide
in
thread
bar
again.
9.
Into
guide inside
face.
10.
Through needle
clamp
guide
and
into
needle from
left
to
right
pulling
three
or
four
inches
of
thread
through
needle.
Fig.9
Hold
the
end
of
upper
thread
loosely and
turn
hand
wheel
toward
you
until
the
needle
goes
all
the
way
down
and
comes
back
up.
A
loop
(Fig.
9) will
be
formed
over
the
upper
thread
which
then
can
be
pulled
out
straight.
Place
both
thread
ends
under
the
slot
of
the
presser
foot
and
draw
toward
the
back
of
the
machine,
leaving
both
threads
three-or
four
inches
long.
Fig.
10
7
SETTING
THE
STITCH
LENGTH
The
length
of
the
stitch
is
regulated
by
the
stitch
length
control
dial
(),
Fig.
1)
Near
0
is
the
shortest
stitch
and
5
is
the
longest,
but the
control
dial
may
be
set
at
any
spot
between
marking
for
a
variety
of
lengths.
Turn
the
control
dial
to
the
right
to
lengthen
and
to
the
left
to
shorten
the stitch.
STITCH LENGTH
CHART
(Approximate)
Figures on
indicator
0
1
23
4
5
Number
of
stitches
par
inch
No
Feeding
30
15 10
7
6
SEWING
IN
REVERSE
When
you
wish
to
sew
backward
to tie
the
threads
at
the
beginning or
end
of
a
seam,
press
in
the
push
button
(0
,
Fig.
1)
as
far
as
it
will
go.
The
machine
will
sew
backward
as
long
as
the
button
is
held
in.
ADJUSTING
THE
TENSIONS
Always
adjust
the
upper
tension
with
the presser
foot
down,
as
the
tension
is
released
when
it
is
raised.
To
increase
the
tension
on
the
upper
thread,
turn
dial
(Fig.
11)
to
the
right,
or
clockwise. To decrease,
turn
to
the
left. The
higher
the
number
on
the
dial,
the
tighter
the
tension.
Before
adjusting
lower
tension
be
sure
that
the
machine
is
threaded
properly.
When
necessary
to
change
the bobbin
tension,
turn
small
screw
(Fig.
12)
on
side
of
the
bobbin
case
clockwise to
tighten,
counterclockwise
to
loosen.
Fig.
11
When
the upper
and
lower
tensions
are
properly
balanced,
a
perfect
stitch
will
be
formed
with
both
threads
interlocking
in
fabric
(Fig.
13).
When
the
upper
tension
is
too
tight,
the
lower
thread
is
pulled up
over
the
upper
thread
which
is
lying
flat
on
the
fabric
(Fig.
14).
When
the
upper
forms
loops over
the
(Fig.
15).
‘
c\\
c’
‘\
:\\‘
\\‘‘
“
‘
Fig.
14 Fig. 15
FEEDING OF FABRIC
The
height
of
the
feed
dog
may
be
regulated
according
to
the
thickness
of
the
material
being sewn,
by
proper
setting
of
the
push
buttons.
1.
In
sewing
on
thin
materials,
such
as
silk,
creape
de
chine
etc.,
push
the
button
marked
“DOWN”
down
as
far
as
the
while
line.
2.
In
sewing
on
thick
materials,
such as
overcoats,
push
the
button
marked “UP”
down
as
far
as it
will
go.
3.
When
it
is
necessary
to
turn
the
work
freely
as
in
embroidering
and
button
sewing,
push
the
button
marked
“DOWN”
as
far
as
it
will
,oosen
Fig. 12
;
‘%
-4
•y
/////
Q/
tension
is
too
loose,
the
upper
thread
lower
thread
lying
flat
under
the
fabric
Fig.
1
go.
Fig.
16
SEWING
THIN
OR
LIGHT
WEIGHT
FABRICS
When
lighter pressure
is
required
to
sew
satisfactorily
on
thin
silk
or
filmy
material,
the
pressure
cap
should
be
about
halfway
down,
Release
all
the
way
by
pressing
the
snap
lock,
((I),
Fig. 17)
and
then
press cap
(©,
Fig. 18)
down
again
to
halfway
spot.
DARNING
AND
MONOGRAMMING
In
order
to
move
the
fabric
freely
in
any
direction
for
darning,
mending
and
certain
kinds
of
free-hand
embroidery,
release
the
cap
(,
Fig.
18)
completely
by
pressing
down
on
the
snap
lock,
(a),
Fig. 17)
Press
“DOWN”
button
all
the
way
down,
which
drops the
feed
well
below
the
needle
plate.
To
return
feed
to normal,
press
“UP”
button,
push
cap
down.
(Fig.
18)
Fig. 18
9
Fig,
17
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