When using this machine, basic safety precautions should always be followed including the following.
Read all instructions before using the machine
A DANGER
The machine should never be left unattended when plugged in. Always unplug the machine from the
electric outlet immediately after using and before cleaning.
- To reduce the risk of electric shock:
A WARNING -To reduce the risk of burns, fire, electric shock or iniury lo persons:
• Be sure that the electrical voltage of the electric outlet (wall receptacle) is the same as the rated voltage of
the motor.
. Use this machine only for its intended use as described in this Operator’s Guide. Use only attachments
recommended by the manufacturer as contained in the Operator's Guide
• To disconnect, turn all controls to the off (“0") position, then remove plug from outlet.
. Disconnect the power line plug from the socket outlet or switcti tlie machine oft when making any adjustments
in the needle area, such as threading needle and loopers, changing needle, changing throat plate or
changing presser foot, etc.
. Always unplug the machine from the electrical outlet when removing covers, lubricating, or when making
any other user servicing adjustments mentioned in the Operator's Guide
• Do not attempt to adjust the motor belt. Contact your nearest Service Center should any adjustment be
required.
• Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.
- Handle the foot controller with care and avoid dropping it on the floor. Be sure not to place anything on top
of it.
. Always use the proper throat plate The wrong plate can cause the needle to break
• Do not use bent needles.
. When sewing, keep fingers away from all moving parts. Special care is required around the sewing
machine needle.
• Do not pull or push fabric while stitching. It may deflect the needle causing it to break.
. Use only the handle to lift and move the machine.
. Never operate the machine if it has a damaged cord or plug, if it is not working properly, if it has been
dropped or damaged, or dropped into the water. Return the machine to the nearest authorized dealer or
Service Center for examination, repair, electrical, or mechanical adjustment.
- Never operate the machine with any air openings blocked. Keep ventilation openings of the machine and
foot controller free from the accumulation of lint, dust and loose cloth.
. Never drop or insert any object into any opening.
+ Do not use outdoors.
* Do not operate where aerosol (spray) products are being used or where oxygen is being administered.
» Do not allow to be used as a toy. Close attention is necessary when the machine is used by or near
children.
* Do not expose the machine or machine plastic case to sunlight directly. Also, do not keep it in a very warm
or damp place.
» Do not touch the machine, toot controller and power line cord with wet hand, wet cloth or with anything wet.
♦ Do not connect power line cord to one of the many cords connected to one power outlet with adapters.
• Use machine on flat and stable table.
V Be sure to close the cylinder cover and looper cover before operating the machine.
• Keep presser foot and needles away from children’s reach.
« Do not dismantle or modify the machine yourself.
♦ Be sure to turn off the power switch and disconnect the power line plug before caring for your machine as
instructed in the operator's guide.
SAVE THESE INSTRUCTIONS
Servicing should be performed by an authorized service representative.
This product is not intended for industrial use.
FOR EUROPEAN AND SIMILAR TERRITORIES:
Machines for Great Britain and some other countries having similar wiring standards are shipped from the
factory without a plug for connection to the mains. The wires in this mains lead are colored In accordance with
the following code.
Blue: neutral (N) Brown: live (L)
As the colors of the wires in the mains lead of this appliance may not correspond with the colored markings
identifying the terminals in your plug, proceed as follows:
The wire which Is colored blue must be connected to the terminal which is marked with the letter N or colored
black. The wire which is colored brown must be connected to the terminal which is marked with letter L or
colored red. If a 13 Amp. (BS 1363) plug is used, a 3 Amp. fuse must be fitted, or if any other type of plug is
used, a 5 Amp. fuse must be fitted either in the plug or adaptor or at the distribution board.
Neither cord is to be connected to the earth terminal of a Ihree-pin plug.
CONTENTS
Page
1. Selection of Stitches..............................................5
This machine is capable of producing various types of stitches according to the combination ot needle positions,
threading methods, tension adjustment,
Stitch Type
Reference
Pages
1. Two-thread
wrapped edge
overtook
2. Two-thread
standard rolled
hem stitching
3. Three-thread
Overlock
4. Three-thread
Flatlock
4?
miimm
(502)
(503)
(504)
1-needle 2-thread stitch is used for
light weight or knits fabrics. Also.a
3.5mm and 5.7mm wrapped overlock
seam width can be obtained by
changing the needle position.*
1-needle 2-thread stitch is used for
overedge seaming.blindstitch
hemming on edge finishing operations.
Also.a 3.5mm and 5.7mm standard
rolled hem seam width can be obtained
by changing the needle position.*
1-needle 3-thread stitch is used for
overedging and seaming on common
fabrics. Also, a 3 5mm and 5.7mm
overlook seam width can oe obtained by
changing the needle position "
1-needle 3-thread stitch is used for butted
or lapped seams and ornamental stiiching
with decorative thread. Also, a 3.5mm and
5.7mm flatlock width can be obtained by
changing the needle position.'
30
31
32
33
(505)
5. Three-thread
Wrapped Edge
Overlook
1-needle 3-thread stitch is used for sewing
narrow rolled hems or ornamental edges.
Also, a 3.5mm and 5.7mm wrapped
34
overlook seam width can be obtained by
changing the needle position *
6. Four-thread
Stretch Mock
Safety Stitch
(514)
* Depending on the needle positions used, this machine can sew 3-thread standard width 3.5mm overedge and
a 5.7mm wide overedge seams.
2-needle 4-thread stitch which is ideal lor
medium to heavy weight stretchy fabrics
such as double knits and swim wear.
35
Also, for overedging heavyweight fabrics, the seam width can be increased still more by turning the overedge
seam width adjustment knob. (See page 21)
Tension Dial: Numbers shown are average
settings on medium weight fabric with
standard #80 polyester spun thread
BlueGreenOrangeYellow
4.02.0
3.51.0
0.56.0
0.5
3.0
3.03.03.0
0.55.0
0.55.07.0
3.0
5.008.5
3.03.0
1.0
5.0
7.0
7.0
spreader
Spreader
Spreader
Spreader
Spreader
Upper
looper
Upper
looper
Upper
looper
Upper
looper
Upper
looper
Upper
looper
Page
30
31
32
33
34
Stitch Type
Two-Thread
Wrapped Edge
Overiock
1
Two-Thread
Standard Rolled
2
Hem Stitching
Three-Thread
Overlock
3
Three-Thread
Flatlock
4
Three-Thread
Wrapped Edge
5
Overlock
Needle
Positions
3.5mm
5.7mm
(602)
3.5mm
5.7mm
(503)
3.5mm
5.7mm
(504)
3.5mm
S
5.7mm
(505)
3.5mm
S
5.7mm
Four-Thread Ultra-
Stretch Mock
6
Safety Stitch
3.03.03.03.0
(514)
Upper
looper
35
The thread tension becomes tighter as the dials are turned to higher numbers. The tension sellings shown on
this page as well as throughout the operator's manual are suggested guides. Adjust thread tensions to suit the
fabric and size of thread used. For host results make tension adjustments in small increments of no greater
than half a number at a time.
3. ACCESSORIES
Accessories are contained in the accessory case in
the cloth plate.
• Power Switch: Push mark side to turn “ON".
Push “O" mark side to turn “OFF".
• To run the machine and control the speed, press
the controller.
• The harder you press, the faster the machine will
•
sew.
• To stop the machine from sewing, remove your foot
from the controller.
WARNING:
Use only foot controller provided with this
machine. (YC-482 for U.S.A. & CANADA only)
Be sure to make reference to "Warning" on
following page.
POLARIZED PLUG INFORMATION (FOR U.S.A. & CANADA ONLY)
This appliance has a polarized plug (one blade wider than the other). To reduce the risk of
electric shock, this plug is intended to 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 tit, contact a qualified
electrician to install the proper outlet. Do not modify the plug in any way.
Warning;
A
* Be sure that the electrical voltage of the electric outlet (wall receptacle) is the same as the rated
voltage of the motor.
* Handle the foot controller with care and avoid dropping it on the floor. Be sure not to place
anything on top of it when not in use.
* Disconnect the power line plug from the electric outlet when changing needles, presser feet or
throat plates, or when leaving the machine unattended. This eliminates the possibility of starting
the machine by accidentally pressing the controller.
9. PREPARATION FOR THREADING
Setting Up the Thread Guide Holder
This machine is shipped with the thread guide bolder
in the lowered position.
Fully extend the thread guide holder.
The two joints on the telescope will click into place
when they are correctly positioned.
Center the thread guides above the spool pins.
Place thread over the cone adapters on the spool
pins.
Note: If the machine is threaded, straighten the
threads to prevent tangling.
i
SlftfOfill
O
10
10. HOW TO REMOVE AND INSERT
NEEDLES
To Remove Needle(s)
Caution ;
l\ Be sure to disconnect the machine from the
A
electric outlet before removing needle(s).
Turn the hand wheel toward you until the needle is
at its highest position.
Loosen, but do not remove the needle set screw
with the small screwdriver.
1 Left needle set screw
2 Right needle set screw
3 Left needle
4 Right needle
Remove the needle(s).
To Insert Needle(s)
Caution :
|\ Be sure to disconnect the machine from the
A
• Hold the needle with the flat surface to the back.
• Insert the needle into the needle clamp as far as it
• Securely tighten the needle set screw.
electric outlet before replacing needle(s).
will go.
Note: » This machine uses #2022 needles. Refer
to page 7 lor additional needle information.
* Remove the cloth plate if you find it difficult
to remove and replace the needle.
11. THREADING THE MACHINE
Threading Diagram
• A color coded threading diagram is located inside
the looper cover for quick reference.
• Thread the machine in the order 1 to 4 as shown.
4 Left needle thread............................ Blue
................
................
.................
Orange
Yellow
Green
To Thread The Machine Correctly
Caution :
A
Be sure to turn off power switch.
1) Threading the Upper Looper (Orange^______
• Thread the upper looper as indicated 1 ~ 8 .
12
Pass thread from back to the front through the
thread guide 1
• Thread the top cover thread
guide by pulling the thread
downward until it slips
under thread guide 2 .
While holding thread with finger, pass it between
the tension discs and pull thread down to make
certain it is properly located in between the
tension discs 3 ,
r
Thread the looper area of the machine following the
orange color coded thread guides ( 4 ~ 7 ).
Thread the hole in the upper looper from front to
back 8 .
Note: Use of tweezers provided in the accessory
set to aid in threading the looper.
Pull about 10cm (4 inches) of thread through the
looper and place to the back of the throat plate.
13
2) Threading the Lower Looper (Yellow)
• Thread the lower looper as indicated 1 ~ 9 .
Pass thread Irom back to the front through the
thread guide 1 .
Thread the top cover thread
guide by pulling the thread
downward until it slips under
thread guide 2 .
While holding thread with finger, pass it between
the tension discs and pull thread down to make
certain it is properly located in between the
tension discs 3 .
14
• Turn the hand wheel toward you until the lower
looper is at the far right.
Thread the looper area of the machine following
the yellow color coded thread guides 4 ~ 7 .
Note: Use the tweezers provided in the accessory
set to aid in threading the looper.
Grasp the thread with the tweezers 4 cm (1-1/2
inches) from thread guide 7.
Place the thread with the point of the tweezers
slightly under and to the left of threading guide 8.
Pull the thread up and into thread guide 8.
• Pass the thread behind and over the top end of
left looper 9-A.
♦ Then pull it downward gently so that it will slip
into the slot in the looper 9-B.
Pick up the thread and pass it through the hole in
the end of the looper 10 .
Note : Use the tweezers provided in the
accessory set to aid in threading the
looper.
The thread should be positioned in the groove of
the lower looper.
Pull about 10cm (4 inches) of thread through the
looper and place it over the top of the upper
looper and to the back of the throat plate.
15
3) Threading the Right Needle (Green^
• Thread the right needle as indicated 1 ~ 8.
Pass thread from back to the front through the
thread guide 1 .
Thread the top cover
thread guide by pulling the
thread downward until it
slips under thread guide
2.
While holding thread with finger, pass it between
the tension discs and pull thread down to make
certain it is properly located in between the
tension discs 3.
16
Continue to thread points 4 ~ 7 .
Note; Be sure to pass the thread through upper
thread path of the thread guide 6.
• Thread the eye of the right needle 8 .
Note; Use of tweezers in the accessory set will
make needle eye threading easy.
• Draw about 10cm (4 inches) of thread through
needle eye to hang free.
• Place the thread to the back, under the presser
foot.
17
4) Threading the Left Needle (Blue^
Thread the left needle as indicated 1 - 7.
• Pass thread from back to the front through the
thread guide 1 .
Thread the top cover thread
guide by pulling the thread
downward until it slips
under thread guide 2 .
r
V
While holding thread with finger, pass if between
the tension discs and pull thread down to make
certain It is properly located in between the
tension discs 3.
f j-
L'
Tii
U
T
L
SINCI
18
Continue to thread points 4 ~ 6 .
Note: Be sure to pass the thread through lower
thread path of the thread guide 5.
• Thread the eye of the left needle 7 .
Note: Use of tweezers in the accessory set will
make needle eye threading easy.
• Draw about 10cm (4 inches) of thread through
needle eye to hang free.
• Place the thread to the back, under the presser
foot.
Important Threading Information
• Always thread the needle(s) last to prevent
misthreading the lower looper.
• If the lower looper should come unthreaded;
1) Unthread the needle(s)
2) Thread the lower looper
3) Thread the needle(s)
* •
Correct
View
Wrong
View
19
12. HOW TO CHANGE THREADS /
TIE ON METHOD
To change thread type or color, clip thread near the
spool.
Place new thread on stand.
Tie new thread and old thread ends together.
Clip thread tails to 2 ~ 3cm (1 inch) length.
If clipped too short, threads may come untied.
Firmly pull both thread to test knot security.
Note tension dial settings.
Turn the tension dials down until the dial stops.
• Pull the threads through the machine one at a time.
• If threads do not pull easily, check for tangles on
thread guides or looping under thread stand.
• When pulling thread through the needle, STOP when
the knot is in front of the needle.
•
• Cut the thread, and insert it through the needle.
• Return tension dials to previous settings.
20
13. HOW то ADJUST THE STITCH
LENGTH
The stitch length dial should be set on the 3 mm
(1/8 inch) setting for most sewing conditions.
Adjust the stitch length to 4mm (5/32 inch) when
sewing heavy weight fabrics.
Adjust the stitch length to 2mm (5/64 inch) when
sewing light weight fabrics to obtain excellent seams
without puckering.
14. HOW TO ADJUST THE SEAM
WIDTH
• Overedge seam width can be achieved by
repositioning the needle position and also with the
width adjustment knob.
Width Adjustment by Changing Needle Position
Overedge seam width can be adjusted by changing
the needie position.
a) When only left needle is used.....................5.7 mm
(7/32 inch)
b) When only right needle is used
..................
3.5 mm
(9/64 inch)
Width Adjustment with Adjustment Knob
• Use of width adjustment knob will permit further
adjustment within the width range shown below,
a) When only left needle is used
b) When only right needle is used... 3.0 ~ 4.5 mm
..........
5.2 ~ 6.7 mm
(13/64 ~ 17/64 inch)
(1/8-11/64 inch)
(7/32")
Left/Right
needle
N 1
Й S !
0 \%
/ 1
1 < ;
¿ / •
> !
3.0 mm
(1/8")
4.5 mm
(11/64")
t
Ri»
*Sf
Left/Right
needle
Left needle
Right needle
J
21
Width adjustment knob
Caulion:
Before making adjustments, be sure to turn off
A
power switch
Opening the looper cover will make adjustment
easier.
Push the upper knife to the right and while maintain
the knife in this position.tum the knob away to adjusts
the desired seam width,using te graduations on the
throat plate as a guideline.
Caution:
A
Always close looper cover before operating
machine.
Push«
4.5
3.5/Rolled hem
(When shipped
from (octoty.)
3.0mm
ÎD
15. HOW TO ADJUST THE PRESSER
FOOT PRESSURE
The presser foot pressure of this machine is
preadjusted at the factory to suit the sewing of
medium weight fabrics.
Most of the materials do not require adjustment of
presser foot pressure however, there are some
instances where adjustment is necessary when
sewing lightweight and heavyweight fabrics.
In such case, insert screwdriver through access hole
(A) in top cover and into slot (B) in pressure
regulating screw and turn regulating screw as
required.
Note: Turn regulating screw counterclockwise until
It stops against the top cover. Then turn
screw clockwise 6 turns which will be the
standard presser bar pressure.
For lightweight fabric ... Decrease the pressure
For heavyweight fabric ... Increase the pressure
s
22
16. DIFFERENTIAL FEED
• Differential feed is a system which “stretches" or
"gathers" the fabric, when amount of feed of front
feed dog in relation to the rear feed dog is changed.
• The differential feed ratio ranges from 1 ; 0.7 ~
1 : 2.0. Adjustment is made by means of the
differential feed adjusting lever pictured below.
• Use of differential feed is very effective in overedging
stretch fabrics and fabrics cut on the bias.
• Graduation “1.0" is differential feed adjusting lever
setting for ratio 1:1.
Gathered Overedge
Gathered overedge is most suited for shirring
sleeves, yokes, front and back bodices, skirt hems,
etc. in stretch fabrics such as knits and jersey before
assembling into garment.
To set the differential feed adjusting lever
• Set differential feed adjusting lever knob below
graduation “1.0". Setting of adjusting lever knob
depends on material being sewn as well as the
amount of gather therefore set knob to suit the fabric
and test sew before sewing your garment.
• When feed regulating dial is set at "3" or over, the
amount of feed of the main feed dog will change to
"3“ automatically when adjusting lever knob is set
to 2.0.
Note: For normal overedge stitching, set differential
feed adjusting lever knob to graduation "1.0".
* •
23
Stretch Overedge
stretch overedge is ideal for sewing decorative
collars, sleeves, skirt hems, etc. on loosely knit and
woven fabrics.
To set the differential feed adjusting lever
• Set differential feed adjusting lever knob above
graduation "1.0".
To sew a seam, apply gentle tension to the fabric
by holding the seam lightly in front and back of the
presser foot.
Note: * If amount of “stretch" is not correctly set in
relation to the fabric being sewn, the fabric
is apt to shift away from the needle
resulting in improperly sewn overedge
seam. In such case, reset differential feed
adjusting lever closer to the center mark.
* Be sure to reset the differential feed
adjusting lever to graduation "1.0" for
normal overedge stitching.
24
17. HOWTO DISENGAGE MOVABLE
UPPER KNIFE
Caution :
A
To place movable knife in nonworkina position
Be sure to turn off power switch.
• Turn handwheel over toward you and raise upper
knife to its highest position.
Open looper cover (page 9 ).
Push the movable knife holder to the right as far as
it will go.
Turn the knob away from you until the knife clicks
into a horizontal position.
Note: If the knife stops in the up position:
* Turn the hand wheel toward you until the
knife clears the top of the machine.
* Continue to rotate the knife to the horizontal
position.
To place movable knife in working position
• Open looper cover and push the movable knife
holder to the right as far as it will go.
• Turn the knob up and toward you until the knife
clicks into the working position.
Caution :
A
Always close looper cover before operating
machine.
* •
25
18. CONVERTING THE UPPER
LOOPER INTO SPREADER
Warning:
A
Switch off the machine before installing
or removing the spreader.
Installing the spreader
Insert the pin (A) of the spreader in the
hole (B) of the upper looper.
Put the positioning rib (C) in contact
with the upper surface of the looper.
Insert the point (D) in the hole (E)
of the upper looper.
Removing the spreader
• Remove the point (D) of the hole (E)
of the upper looper and take the
spreader off the looper.
Note: Put the spreader back to the
accessory storage.
26
19. FREE ARM SEWING
(TUBULAR WORK)
This machine become a free arm machine simply
by removing the cloth plate.
To remove the cloth plate
Slide cloth plate to the left and remove from machine
while pressing button (A) located on the underside.
This is especially suited for sewing hard to reach
garment areas such as armholes and overcasting
trouser cuffs.
Place garment over the free arm and sew.
To replace the cloth plate
Align projection on cloth plate with groove in cylinder
cover and slide to the right until tab on cloth plate
(front) snaps into slot in cylinder cover.
27
20. STANDARD OVEREDGE AND
ROLLED HEM STITCHING
To Sew Standard Overedge
Set seam width finger knob to S to move seam
width finger to projected position.
Note: Be sure to push seam width finger knob as
far as it will go in the direction of setting S .
To Sew Rolled Hem
Set seam width finger knob to R to retract the
seam width finger.
Note: Be sure to push seam width finger knob as
far as it will go in the direction of setting R .
28
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