Baby Lock Diana BL480A Instruction manual

PREFACE
Thank you for your purchase of this Combination Overlock, Chain Stitch and Cover Stitch
Machine. This machine, that is intended for household use will provide you with excellent
performance in sewing from light to heavy material (lawn to denim).
Please refer to this Instruction manual for proper use and optimum service. To get the most out
of your serger, read the entire Instruction manual before attempting to operate the machine.
Then familiarize yourself with the machine by following the Instruction manual page by page.
To ensure that you are always provided with the most modern serging capabilities, the
manufacturer reserves the right to change the appearance, design or accessories of this
sewing machine when considered necessary without notification or obligation.
For additional product information and updates, visit our website at www.babylock.com
1
“IMPORTANT SAFETY INSTRUCTIONS”
When using overlock machine, basic safety precautions should always be followed,
including the following.
Read all instructions before using this overlock machine.
DANGER - To reduce the the risk of electric shock:
1. The overlock machine should never be left unattended when plugged in. Always unplug this overlock
machine from the electrical outlet immediately after using and before cleaning.
WARNING - 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 the sewing machine is used by or near
children.
.
2. Use this overlock 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 overlock 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 water. Return the overlock machine to the nearest authorized dealer of
service center for examination, repair, electrical or mechanical adjustment.
.
4. Never operate the overlock machine with any air openings blocked. Keep ventilation openings of the overlock
machine and foot controller 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 the main switch to the symbol “O” position which represents off, 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 overlock machine needle.
.
11. Always use the proper needle plate. The wrong needle plate can cause the needle to break.
.
12. Do not use bent needles.
.
13. Do not pull of push fabric while stitching. It may deflect the needle(s) causing it to break.
.
14. Switch the overlock machine to the symbol "O" position when making any adjustments in the needle area,
such as threading needle, changing needle, threading looper, or changing presser foot, and the like.
.
15. Always unplug the overlock machine from the electrical outlet when removing covers, lubricating, or when
making any of the user servicing adjustments mentioned in the instruction manual.
.
16. Keep fingers away from moving parts, especially the area near the blades.
.
17. Please note that on disposal, this product must be safely recycled in accordance with relevant National
legislation relating to electrical / electronic products. If in doubt please contact your retailer for guidance.
.
18. The appliance is not intended for use by young children or infirm persons without supervision.
.
19. Young children should be supervised to ensure that they do not play with the appliance.
“SAVE THESE INSTRUCTIONS”
“This overlock machine is intended for household use.”
2
TABLE OF CONTENTS
Page
Page
1. Principal Parts......................................................... 4
2. Accessories............................................................. 6
3. Needle Information.................................................. 6
4. How to Open Front Cover....................................... 7
5. Principal Parts Behind the Front Cover................ 7
6. Connecting Machine to Power Supply.................. 7
7. Removal and Replacement of Waste Tray............ 8
8. Preparation for Threading...................................... 9
Setting up the thread antenna................................... 9
Thread Net................................................................ 9
Spool cap.................................................................. 9
9. How to Disengage Movable Upper Knife............. 10
10. To Convert Upper Looper to 2-Thread Converter 11
To use the 2-Thread converter................................ 11
To disengage to upper looper.................................. 11
11. Standard Overlock and Rolled Hem Stitching.... 12
To sew standard overlock........................................ 12
To sew rolled hem.................................................... 12
12. How to Remove and Insert Needles..................... 13
Needle position........................................................ 13
To remove needle(s)................................................ 13
To insert needle(s)................................................... 13
13. Threading the Machine.......................................... 14
Threading diagram sequence.................................. 14
Tension color code................................................... 14
To thread the machine correctly............................... 15
Threading the upper looper (Green)........................ 15
Threading the lower looper (Blue)............................ 16
Threading the chain/ cover stitch looper (Purple).... 18
Threading the overlock right needle (Yellow)........... 19
Threading the chain stitch needle (Red).................. 21
Threading the cover stitch needles.......................... 23
23
Threading the cover stitch left needle (Red)
Threading the cover stitch middle/chain stitch
needle (Yellow)....................................................... 24
Threading the cover stitch right needle(Green)..... 26
14. How to Change Threads / Tie on Method........... 28
15. How to Adjust the Seam Width............................ 29
Width adjustment by changing needle position...... 29
Width adjustment with adjustment knob................. 29
16. How to Adjust the Stitch Length.......................... 30
17. How to Adjust the Presser Foot Pressure.......... 30
18. Differential Feed.................................................... 31
Gathered overedge................................................. 31
Stretch overedge..................................................... 32
22. Selection Stitches & Auto Tension................... 34
23. Handy Reference Chart..................................... 37
24. Suggested Tension Setting............................... 39
Chain Stitch.......................................................... 39
2-Thread Wrapped Edge Overlock...................... 40
2-Thread Overlock (Narrow/ Wide)...................... 41
3-Thread Overlock............................................... 42
3-Thread Flatlock................................................. 43
3-Thread Mock Safety Stitch............................... 44
4-Thread Mock Safely Stitch................................ 45
4-Thread Chain Stitch-2-Thread Overlock........... 46
5-Thread Chain Stitch-3-Thread Overlock........... 47
25. How to Sew a Cover Stitch............................... 48
Machine set up................................................ 48
26. How to Sew a Rolled Hem................................. 53
3-Thread Narrow Hem ........................................ 54
3-Thread Rolled Hem ......................................... 54
2-Thread Narrow Hem............ ............................ 55
2-Thread Rolled Hem.......................................... 55
27. Stitch Variations and Sewing Techniques....... 57
Decorative Flatlocking......................................... 58
How to sew an overlock blindhem...................... 59
How to sew a pin tucks....................................... 59
Turning square corners....................................... 60
Pin placement..................................................... 61
Securing the thread chain................................... 61
How to reinforce a seam...................................... 62
Braiding by chaining off...................................... 62
28. Machine Maintenance........................................ 63
Cleaning the machine.......................................... 63
Oiling the machine............................................... 63
How to replace the moveable knife..................... 64
How to change light bulb..................................... 65
29. Snap On Presser Foot Removal/Repiacement 66
30. Optional Presser Feet.........................................67
Elastic Foot ........................................................ 67
Blindhem Foot .................................................... 67
Ruffling Foot ....................................................... 67
Beading Foot........................................................ 67
Cording Foot........................................................ 67
Taping Foot.......................................................... 67
31. Troubleshooting Chart...................................... 68
32. Fabric, Thread and Needle Guide.......................69
19. Presser Foot Markings.......................................... 33
20. Presser Foot Lifter................................................. 33 33. Specification....................................................... 70
21. Chaining Off and Test Sewing.............................. 33
3
1. PRINCIPAL PARTS
1. Thread antenna
2. Handle
3. Left needle thread tension fine tuning (red)
4. Right needle thread tension fine tuning (yellow)
5. Upper looper thread tension fine tuning (green)
6. Lower looper thread tension fine tuning (blue)
7. Chain stitch looper thread tension fine tuning (purple)
8. Needle plate
9. Side cover
10. Front cover
11. Power & light switch
12. Stitch length dial
13. Handwheel
14. Spool stand
15. Cone adaptor
16. Spool pin
17. Waste tray
3 4 5
18. Auto tension dial
19. Machine socket
1
2
6
7
16
18
15
8
14
12
9
13
10
11
17
4
19
20. Presser bar lifter and tension release
21. Differential feed adjusting dial
22. Width adjustment dial
23. Foot pressure adjusting dial
24. Knife cover
25. Seam guide plate
26. Seam width finger lever
23
20
21
26
22
24
25
26
N
R
5
2. ACCESSORIES
Accessories are contained in the accessory case
1. Screw driver (large size)
2. Knife (movable)
3. Spool cap(s)
4. Thread net(s)
5. Oiler
6. Allen wrench (small)
7. Tweezers
8. Needle set
9. Brush
10. 2-Thread converter
11. Seam guide plate
1
1
5
5
1
1
1
1
1
1
1
Accessories in box with machine
12. Spool holder
13. Waste tray
14. Machine cover
15. Instruction manual
16. Foot controller/Power cord
17. Thread Antenna
18. Knife cover
5
1
1
1
1
1
1
1
6
2
3
7
8
4
5
10
9
Optional Accessories
1. Elastic foot..........................
2. Blindhem foot ....................
3. Ruffling foot........................
4. Beading foot.......................
5. Cording foot........................
6. Taping foot..........................
BL408A-EF
BL408A-BHF
BL408A-RF
BL408A-BF
BL408A-CF
BL408A-TF
11
12
13
15
14
3. NEEDLE INFORMATION
This overlock uses a flat shank needle that eliminates
the possibility of inserting the needle backwards.
16
17
HAx1 needle size 14/90 is furnished with the machine.
HAx1/ ELx705
Only use Needle HAx1/ ELx705 in size 14/90 and 11/80.
6
Overlock needle
18
4. HOW TO OPEN FRONT COVER
CAUTION
1
Be sure to turn off power switch.
CAUTION
Be sure front cover is closed when
sewing.
2
1
Push the cover to the right as far as it will go.
2
Pull cover down toward you.
5. PRINCIPAL PARTS BEHIND THE FRONT
COVER
1
Upper looper
2
Moveable Upper knife
3
Presser foot
4
Fixed lower knife
5
Lower looper
6
Chain/Cover looper
7
Rolled Hem
8
Upper looper clutch / Driving clutch
7
2
3
1
5
6
4
8
6. CONNECTING MACHINE TO POWER
SUPPLY
2
1
1 Connect the machine/foot control plug to the machine
receptacle.
2 Plug power line into electric outlet.
3 Power Switch: Push " l " mark side to turn "ON"
Push "O" mark side to turn "OFF"
OFF
ON
4 To run the machine and control the speed, press
the controller.
3
The harder you press, the faster the machine will sew.
4
WARNING:
To stop the machine from sewing, remove your foot
from the controller.
Use only foot controller provided with this machine.
(Type 4C-316B for U.S.A. & CANADA only)
Be sure to make reference to "Warning" on following
Page.
Note: Always make sure that the machine is in the off
position, before connecting to power supply.
7
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 way. If the plug does
not fit fully in the outlet, reverse the plug. If it still does not fit contact a qualified electrician
to install the proper outlet. Do not modify the plug in any way.
Warning:
* 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 when leaving the machine unattended. This eliminates the possibility of starting the machine
by accidentally pressing the controller.
7. REMOVAL AND REPLACEMENT OF
WASTE TRAY
Replacement
1 Insert the waste tray under the looper cover.
2
2 Be sure the left side of clean pocket is mounted near the
cutter where the scraps drop.
1
Removal
3 To remove, hold the waste tray as shown and pull it outward.
3
8
8. PREPARATION FOR THREADING
Setting Up the Thread Antenna
Take out the thread antenna from the top of styrofoam,
and insert it as shown in first illustration.
This machine is shipped with the thread antenna on the
top of styrofoam.
Fully extend the thread antenna.
The two joints on the telescope will click into place
when they are correctly positioned as shown in second
illustration
Center the thread guides above the spool pins.
Place thread over the cone adapters on the spool pins.
Note: Your new machine is threaded to sew Triple Cover
Stitch. Refer to Page 28 for instructions on tying on
to the threads.
Thread Net
When using synthetic threads that easily spill off the cone,
slip the thread net furnished with the machine over the thread
from the bottom of the cone leaving the thread end hanging free
at the top as shown on the right.
Thread
Spool cap
Spool Cap
When using a regular thread spool, fit the spool cap supplied
with the machine onto the thread spool as shown at right.
Press in
Thread spool
9
9. HOW TO DISENGAGE MOVABLE UPPER KNIFE
Caution: Be sure to turn off power switch.
To place movable knife in nonworking position
1
1 Open front cover (page 7). Pull the movable knife holder to
the right as far as it will go.
2
2 Turn the holder counter clockwise until the knife clicks into the
locked position.
To place movable knife in working position
1
2
Open front cover. Pull the movable knife holder to the right
as far as it will go.
1
Turn the holder clockwise until the knife clicks into the
working position
2
Caution: Always close front cover before operating
machine.
10
10. TO CONVERT UPPER LOOPER TO 2-THREAD
CONVERTER
Caution: Be sure to turn off power switch
When not threading the upper looper, the 2-thread converter
must be engaged into the upper looper eye.
To Use the 2-Thread converter
1
1 To engage the 2-Thread converter, insert the point of the
converter into the back of the eye of upper looper.
2 Straddle the square part of the converter over the upper
looper and lower the converter till it lightly snaps into position.
See illustration.
2
To Disengage 2-Thread converter
3 To disengage the 2-Thread converter, raise the square end of
the converter and remove from the upper looper. See illustration.
Note: When using the upper looper, the 2-Thread converter must be
disengaged.
3
11
11. STANDARD OVERLOCK AND ROLLED HEM
STITCHING
To Sew Standard Overlock
Set seam width finger lever N to move seam width finger
to standard overedge sewing position.
Note: Be sure to push seam width finger lever as far as it
will go in the direction of setting N.
N
R
To Sew Rolled Hem
Set seam width finger lever to R to retract the seam width
finger and set it for rolled hem.
N
Note: Be sure to push seam width finger lever as far as it
will go in the direction of setting R.
12
R
12. HOW TO REMOVE AND INSERT NEEDLES
Overedge left needle
Overedge right needle
Needle Position
With this machine, five needles can be inserted into the needle
clamp as shown in the drawing but only one, two or three
needles are to be used at one time.
The Instruction manual refers to different needle positions by
illustrating the needle clamp at right.
Note: When both the left and right overedge needles are
inserted, the left needle will be slightly higher than
the right. When all cover stitch needles are inserted,
the left needle will be slightly higher than the others.
A
B
D
Cover stitch right needle
Cover stitch middle needle
/ Chain stitch needle
E
Cover stitch left needle
C
C D E
To Remove Needle (s)
Right overedge
needle thread
Left, middle and right cover
stitch needle thread
B
Caution: Be sure to disconnect the machine from the
Left and right
overedge needle
thread
D
Chain stitch
needle thread
A B
electric outlet before removing needle(s).
A
Turn the handwheel toward you until the needles are at their
highest position.
B
Hold the needles with your fingers
Loosen, but do not remove the needle set screws with the small
allen screwdriver.
E
Lower the needles and remove from the machine.
C
A. Overedge left needle
B. Overedge right needle
C. Cover stitch left needle
D. Cover stitch middle needle
E. Cover stitch right needle
Flat surface to the rear
D
Attention:
After removing the needle which is not currently being used for
sewing, remember to retighten the set screw in the needle clamp.
Please do not over-tighten the set screw to prevent needle clamp
damage.
To Insert Needle (s)
Hold the needle with the flat surface to the back.
Insert the needle into the needle socket as far as it will go.
To tighten
When inserting a needle, if you first lower it down into the hole
in the needle plate it will line up with the needle socket. Then
direct it upwards
Note: When inserting needles into the A or B sockets it is
necessary to loosen both A & B Allen screws. After
inserting the needles equally tighten both screws.
13
To loosen
13. THREADING THE MACHINE
5
Threading Diagram Sequence:
5-Thread Chain Stitch-3-Thread overlock
4
1
2
3
Chain stitch
Overlock
A color coded threading diagram is located inside the front cover
for quick reference.
Thread the machine in the order 1 to 5 as shown at right.
Note: Threads go through the take-up lever cover for Overlock
and Chain stitching as shown.
C
L
1
2
Tension Color Code:
5-Thread Chain Stitch-3-Thread overlock
1. Upper looper thread............................ Green
2. Lower looper thread............................ Blue
3. Chain stitch looper thread................... Purple
4. Right needle thread............................ Yellow
5. Chain stitch needle thread.................. Red
4
3
5
4
3
2
1
Threading Diagram Sequence: Triple Cover Stitch
A color coded threading diagram is located inside the front cover
for quick reference.
Thread the machine in the order 1 to 4 as shown at right.
Note: Threads go through the top of take-up lever cover for Cover
stitch as shown.
C
L
3
2
Tension Color Code : Triple Cover Stitch
1
1. Cover stitch looper thread............. Purple
2. Right needle thread....................... Green
3. Middle needle thread..................... Yellow
4. Left needle thread..........................Red
4
14
To Thread The Machine Correctly
1
Caution: Be sure to turn off power switch.
2
1) Threading the Upper Looper (Green)
3
Open the front cover and thread the upper looper as indicated in
steps 1 through 9.
- Raise the presser foot to release tension discs.
- Thread the upper looper area of the machine following the green
color-coded thread guides.
4
9
5
8
7
6
1
Pass thread from back to the front through thread guide.
1
2
3
Thread the top cover
thread guide by pulling
the thread towards the
left until it slips under
guide. Then pull thread
along the right side of
pretension disc as
illustrated.
2
2
While holding thread with fingers, pass it between the tension
discs and pull thread down to make certain it is properly
located in between the tension discs.
3
3
4
4
Place the thread from right to left into thread guide.
5
Place the thread from right to left and position thread behind
finger on thread guide.
5
15
6
7
8
Thread the balance of the upper looper area of the machine
following the green color coded thread guides.
4
8
9
9
cm
10
)
(4" 9
Thread the hole in the upper looper from front to back. Make
sure thread passes behind lower looper. Pull about 10cm
(4 inches) of thread through the looper and place to the back
of the needle plate.
5
8
6
7
Note: Use tweezers provided in the accessory case to aid in
threading the looper.
1
2) Threading the Lower Looper (Blue)
Turn the handwheel toward you until the lower looper extends
out 5~10mm from the needle plate edge.
2
Open the front cover and thread the lower looper as indicated in
steps 1 through 10.
- Raise presser foot to release Tension discs.
- Turn the handwheel toward you until the lower looper eye
extends out 5-10 mm from the needle plate edge.
- Thread the lower looper area of the machine following the bule
color-coded thread guides.
3
4
5
10
9
8
7
C
6
L
1
1
Pass thread from back to the front through thread guide.
2
Thread the top cover
thread guide by pulling
the thread towards the
left until it slips under
guide. Then pull thread
along the right side of
pretension disc as
illustrated.
2
2
16
3
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
3
4
Thread the looper area of the machine following the blue color
coded thread guides 4~10.
10
5
9
8
7
6
C
L
4
Place the thread from right to left into thread guide.
5
Place the thread from right to left into thread guide.
4
8
6
7
8
9
10
Thread the balance of the lower looper area of the
machine following the blue color-coded thread guides,
placing thread in guides.
7
5
Thread the looper eye (A) from front to back. Pull about
10cm (4 inches) of thread and position into V cutout (B)
on threader. Firmly hold thread tail with left hand and pull
threader lever (C) up to place thread into correct position
(D) for sewing.
10
9
10c
m
(4")
A
D
B
Note: Use tweezers provided in the accessory case to aid in
threading the looper.
C
17
6
3) Threading the Chain and Cover stitch Looper (Purple)
1
Open the front cover and thread the chain stitch/ cover stitch
looper as indicated in steps 1 through 11.
2
- Raise presser foot to release Tension discs.
- Turn the handwheel toward you until the chain stitch looper
eye extends out 5-10 mm from the needle plate edge.
- Thread the chain looper area of the machine following the
purple color-coded thread guides.
3
4
10
5
11
9
6
7
C
8
L
1
1
Pass thread from back to the front through thread guide.
2
Thread the top cover
thread guide by pulling
the thread towards the
left until it slips under
guide. Then pull thread
along the right side of
pretension disc as
illustrated.
3
2
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
3
18
Thread the looper area of the machine following the purple
color-coded thread guides 4~11.
4
4
Place the thread from right to left into thread guide.
5
Place the thread from right to left into thread guide.
6
Thread the balance of the lower looper area of the machine
following the purple color-coded thread guides, placing
thread in guides.
7
8
9
5
9
6
7
8
10
Thread the looper eye (A) from front to back. Pull about
10cm (4 inches) of thread and position into V cutout (B)
on threader. Firmly hold thread tail with left hand and pull
threader lever (C) up to place thread into correct position
(D) for sewing.
11
10
A
D
B
C
Note: Use the tweezers provided in the accessory case to
aid in threading the looper.
4) Threading the Overlock Right Needle (Yellow)
(B on needle clamp)
1
Thread the right needle as indicated in steps 1 through 9.
- Raise presser foot to release tension discs.
2
3
6
7
8
5
9
19
4
10
(4 cm
")
1
Pass thread from back to the front through thread guide.
1
2
3
Thread the top cover
thread guide by pulling
the thread towards the
left until it slips under
guide. Then pull thread
along the right side of
pretension disc as
illustrated.
2
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
3
5
Slip thread behind metal guide and into rear slot on thread
guide.
6
Pass thread into the slot of take-up lever cover.
4
7
6
7
Position thread into the right guide located at base of take-up
lever cover.
8
Slip thread from left to right into the thread guide located
on bottom of the needle clamp. Position the thread into the
right section of the guide.
4
Note: Before threading eye of needle, slip thread behind thread
guide located on the bottom of the needle clamp.
20
8
5
9
9
Thread the eye of the right needle from front to back. Draw
about 10cm (4 inches) of thread through needle eye toward
the rear of machine and place thread to the back, under the
presser foot.
Note: Use tweezers provided in the accessory case to aid in
threading the looper.
9
10cm
(4")
5) Threading the Chain Stitch Needle (Red)
(D on needle clamp) CENTER NEEDLE
1
Thread the center needle as indicated in steps 1 through 9.
-Raise Presser foot to release Tension discs.
2
3
6
7
8
5
4
9
1
1
Pass thread from back to the front through thread guide.
2
Thread the top cover
thread guide by pulling
the thread towards the
left until it slips under
guide. Then pull thread
along the right side of
pretension disc as
illustrated.
2
2
21
3
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
3
5
Slip thread behind metal guide and into center slot on thread
guide.
6
Pass thread into the slot of take-up lever cover.
7
Position thread into the center slot on the guide located at
base of take-up lever cover.
4
8
Slip thread from left to right into the thread guide located
on bottom of the needle clamp. Position the thread into the
center section of the guide.
7
6
4
8
5
Note: For 4 thread overlock left needle: Use needle A.
Before threading eye of needle, slip thread behind thread guide
located on the bottom of the needle clamp.
9
Note: For chain stitch :Use needle D.
Before threading eye of needle, make sure thread is in front of
thread guide located on the bottom of the needle clamp.
9
Thread the eye of the center needle.
The position of the thread must be behind the thread
guide for overlock stitching.
Draw about 10cm (4 inches) of thread through needle eye
to hang free.
9
Place the thread to the back, and slightly to left under the
presser foot.
Note: Use of tweezers in the accessory case will make
needle threading easy.
22
10cm
(4")
6) Threading the Cover Stitch Needles
(1) Threading the Cover Stitch Left Needle (red)
( C on needle clamp)
1
Thread the cover stitch left /chain stitch needle as indicated in
steps 1 through 9.
2
3
- Raise presser foot to release tension discs.
6
7
8
5
4
9
1
1
Pass thread from back to the front through thread guide.
2
Thread the top cover
thread guide by pulling
the thread towards the
left until it slips under
guide. Then pull thread
along the right side of
pretension disc as
illustrated.
3
2
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
3
23
5
Slip thread behind metal guide and into rear slot on thread
guide.
6
Pass thread into the slot of take-up lever cover.
7
Position thread in the left guide located at base of
take-up lever cover.
4
7
8
6
Slip thread from left to right into the thread guide located
on bottom of the needle clamp. Position the thread into the
left section of the guide.
4
8
5
Note: Slide thread into rear slot on thread guide 5 and slot of
take-up lever cover 6. Then slip thread into left slots of
thread guides 7 and 8.
9
Before threading eye of needle, make sure thread is in front of
thread guide located on the bottom of the needle clamp, for
cover stitch and for chain stitch.
9
Thread the eye of the left needle.
Draw about 10cm (4 inches) of thread through needle eye
to hang free.
Place the thread to the back, and slightly to left under the
presser foot.
9
Note: Use of tweezers in the accessory case will make needle
threading easy.
10cm
(4")
(2) Threading the Cover Stitch Middle / Chain Stitch Needle
(Yellow) (D on needle clamp)(center needle)
1
Thread the center needle as indicated in steps 1 through 9.
- Raise presser foot to release tension discs.
2
3
6
7
8
9
24
5
4
1
1
Pass thread from back to the front through thread guide 1.
2
Thread the top cover
thread guide by pulling
the thread towards the
left until it slips under
guide. Then pull thread
along the right side of
pretension disc as
illustrated.
3
2
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
3
5
Slip thread behind metal guide and into center slot on thread
guide.
6
Pass thread into the slot of take-up lever cover.
4
7
7
Position thread into center guide located at base of take-up
lever cover.
8
Slip thread from left to right into the thread guide located
on bottom of the needle clamp. Position the thread into the
center section of the guide.
Note: Before threading eye of needle, make sure thread is in front of
thread guide located on the bottom of the needle clamp for
Cover stitch and for Chain stitch.
25
6
4
8
5
9
9
Thread the eye of the middle needle.
Draw about 10cm (4 inches) of thread through needle eye to
hang free.
Place the thread to the back, and slightly to left under the
presser foot.
9
Note: Use of tweezers in the accessory case will make needle
threading easy.
10cm
(4")
(3) Threading the Cover Stitch Right Needle (Green)
(E on needle clamp)
1
Thread the cover stitch right needle as indicated in steps 1
through 9.
2
3
- Raise presser foot to release tension discs.
6
7
8
5
4
9
1
Pass thread from back to the front through thread guide.
2
Thread the top cover
thread guide by pulling
the thread towards the
left until it slips under
guide. Then pull thread
along the right side of
pretension disc as
illustrated.
1
2
2
26
3
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
3
5
Slip thread behind metal guide and into front slot on thread
guide.
6
Pass thread into the slot of take-up lever cover.
4
7
7
Position thread into right guide located at base of take-up
lever cover.
8
Slip thread from left to right into the thread guide located
on bottom of the needle clamp. Position the thread into the
right section of the guide.
6
4
8
5
Note: Before threading eye of needle, make sure thread is in
front of thread guide located on the bottom of the needle
clamp for cover stitch.
9
9
Thread the eye of the right needle.
Draw about 10cm (4 inches) of thread through needle eye to
hang free.
Place the thread to the back, and slightly to left under the
presser foot.
9
Note: Use of tweezers in the accessory case will make needle
threading easy.
27
10cm
(4")
14. EASY THREAD CHANGE: TIE ON METHOD
To easily change thread type or color, clip thread near the spool,
and remove old spool of thread.
.
Place new thread on stand.
Tie new thread and old thread ends together with a square knot.
Clip thread tails to 2~3cm (1 inch) length. If clipped too short,
threads may come untied.
Firmly pull both threads to test knot security.
-Raise presser foot to release tension discs.
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 needles, STOP when the knot is in
front of the needle.
Cut the thread, and insert, in the eye of the needle.
28
15. HOW TO ADJUST THE SEAM WIDTH
Overlock seam width can be adjusted from narrow (using right
needle) to wide (using left needle) and also with the width
adjustment dial.
Needle Position Width
Overedge seam width can be adjusted from narrow (using right
needle) to wide (using left needle).
a) When using left needle.................................6 mm (15/64 inch)
6.0 mm
4.0 mm
8.8 mm
(15/64")
(10/64")
(11/32")
b) When only right needle is used....................4 mm (10/64 inch)
c) When using chain stitch needle.................8.8 mm (11/32 inch)
Left needle
Right needle
Chain stitch
needle
Width adjusting dial
As shown on the illustration, turn the dial counter clockwise to
increase width of cutting, and clockwise to decrease width of
cutting.
N
5.5
N
6.5
Use of width adjustment dial will permit further adjustment within
the width range shown below.
a) When using left needle..........5 ~ 7mm (13/64 ~ 17/64 inch)
b) When only right needle is used....3.0 ~ 5.0 mm (1/8 ~ 3/16 inch)
c) When using chain stitch needle....7.8 ~ 9.8 mm (5/16 ~ 3/8 inch)
5 mm
3 mm
7.8 mm
(13/64")
(1/8")
(5/16")
7 mm
5 mm
9.8 mm
(17/64")
(3/16")
(3/8")
Left needle
29
Right needle
Chain stitch
needle
16. HOW TO ADJUST THE STITCH LENGTH
The stitch length dial should be set on the N setting for most
sewing conditions.
4
Adjust the stitch length to N~ 4 when sewing heavy weight fabrics.
3
Adjust the stitch length to 2~N when sewing lightweight fabrics to
obtain excellent seams without puckering.
N
2
17. HOW TO ADJUST THE PRESSER FOOT
PRESSURE
The presser foot pressure of this machine is pre-adjusted 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, such as when sewing lightweight and heavyweight
fabrics.
In such case, N for normal, 1 for the less pressure, and 5 for more
perssure.
For lightweight fabric...Increase the pressure by turning the dial
toward the 5.
For heavyweight fabric...Decrease the pressure by turning the dial
toward the 1.
30
1
2
N
4
5
18. DIFFERENTIAL FEED
Differential feed is a system which "stretches" or “gathers" the
fabric, when the amount of feed of front feed dogs in relation to
the rear feed dogs is changed.
The differential feed ratio ranges from 1:0.6~1:2.0. Adjustment is
made by means of the differential feed adjusting dial pictured at
right.
2.0
1.5
N
1. 5
N
0.8
Use of differential feed is very effective in overedging stretch
fabrics and fabrics cut on the bias.
0.6
Setting "N" is differential feed adjusting dial 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 dial for gathering
Set differential feed adjusting dial above setting "N". Setting of
adjusting dial depends on material being sewn as well as the
amount of desired gather. Lightweight fabrics will gather more
than heavier fabrics. Therefore set dial to suit the fabric and test
sew before sewing your garment.
2.0
1.5
N
0.8
Note: For normal overedge stitching, set differential feed adjusting
dial to "N".
31
0.6
1. 5
N
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 dial for stretch
Set differential feed adjusting dial below setting "N".
2.0
1.5
1. 5
N
0.8
0.6
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 dial closer to
the center mark, or adjust width dial slightly to a larger
number.
*Be sure to reset the differential feed adjusting dial to “N" for
normal overedge stitching.
32
N
19. PRESSER FOOT MARKINGS
A mark to indicate the needle location is provided on the front of
the presser foot on this machine. Use these marks as a guide
when sewing.
20. PRESSER FOOT LIFTER
Put the presser foot lifter in the raised position to lower the presser
foot for sewing.
Swing the presser foot lifter down to lift the presser foot.
For bulky fabrics, pull forward on the presser foot lifter to allow
additional clearance under the foot.
Mark
21. CHAINING OFF AND TEST SEWING
Note: The following instructions do not apply to cover stitch.
For instructions on cover stitch, see page 48 "How to
Sew a Cover Stitch."
When the machine is completely threaded, bring all of the threads
across the needle plate and slightly to the left under the presser
foot.
Hold the threads and apply a slight tension.
Turn the handwheel toward you 2 or 3 complete turns to start the
thread chain.
Lower presser foot.
Continue holding the chain and press on the foot controller until
the chain is 5~7.5 cm (2~3 inches) in length.
Place fabric under the front of the presser foot and sew a test
sample.
Note: Do not pull on the fabric while sewing as this may deflect
the needle, causing it to break.
At the end of the sample, continue to run the machine with the
presser foot down until the chain reaches 15 ~20 cm
(6~8 inches) in length.
Note: In case it is difficult to chain off when stitching, pull the
fabric lightly backward.
Cut thread.
Note: Anytime you have rethreaded the machine always chain
off and sew a sample to test tensions and make
adjustments as necessary.
33
5~
7
(2 .5cm
~3
")
22. SELECTION OF STITCHES & AUTO TENSION
This machine is capable of producing various types of stitches according to the combination of Auto Tension
Selected, needle positions, threading methods, and the use of convertible right looper/converter.
Stitch Type
1. Chain Stitch
ATD: D
2. 2-Thread
Wrapped Edge
Overlock
ATD: D Narrow
ATD: G Wide
3. 2-Thread
Overlock
ATD: E
4. 3-Thread
Overlock
ATD: A Narrow
ATD: B Wide
5. 3-Thread
Flatlock
ATD: F
6. 3-Thread Mock
Safety Stitch
Overlock
ATD : Auto Tension Dial Selected
Reference
Page
A 1-needle 2-thread straight stitch is used
for construction or decorative stitching.
Seams also can be sewn at desired
distance from edge of fabric by
disengaging the right looper and movable
knife.
39
1-needle 2-thread stitch is used for
seaming lightweight or stretch fabrics.
It is also ideal for rolled and blind hemming.
A 4 mm and 6 mm overlock seam width
can be obtained by changing the needle
position.
40
1-needle 2-thread stitch is used for
overedging common fabrics. It is also
ideal for flatlock (butted or lapped) seams
and blind hemming. A 4 mm and
6 mm overedge seam width can be
obtained by changing the needle position.
1-needle 3-thread stitch is used for
overedging and seaming on common
fabrics. A mm and 6 mm overlock seam
width can be obtained by changing the
needle position.
1-needle 3-thread stitch is used for
butted or lapped seams and ornamental
stitching with decorative thread. Also,
a 4 mm and 6 mm flatlock width can
be obtained by changing the needle
position.
2-needle 3-thread stitch that is ideal for
lightweight, extremely stretchy fabrics
such as tricot and spandex.
41
42
43
44
ATD: G
7. 4-Thread Mock
Safety Stitch
Overlock
ATD: A
2-needle 4-thread stitch that is ideal
for medium to heavyweight stretchy
fabrics such as double knits and swim
wear.
34
45
Stitch Type
8. 4-Thread
Chain Stitch2-Thread
Overlock
Reference
Page
ATD : Auto Tension Dial Selected
The 4-thread stitch is a safety stitch
made up of combined 2-thread
overedge and double chain stitch.
46
ATD: I
9. 5-Thread
Chain Stitch3-Thread
Overlock
ATD: A
The 5-thread stitch is a safety stitch
made up of combined 3-thread overlock
and double chain stitch.
A wide seam is formed by using left needle.
Overedge and seaming can be done in one
operation on non-stretch fabrics.
47
Narrow
ATD: B
Wide
10. Cover Stitch
ATD: K
Narrow
(2.8mm)
ATD: H
Wide
(5.6mm)
11. Triple Cover
Stitch (5.6mm)
ATD: J
12. 3-Thread
Rolled Hem
(4.0mm)
The 5-thread stitch is a safety stitch
made up of combined 3-thread
overlock and double chain stitch.
A narrow seam is formed by using right
needle Overedge and seaming can be dane
in one operation on non-stretch fabrics.
2-needle, 3-thread cover stitch is
suitable for stretchy fabrics such as
knits, etc.
47
50
A narrow seam is formed by using left
and middle needles.
2-needle 3-thread cover stitch is
suitable for stretchy fabrics such as
knits, etc.
50
A wide seam is formed by using left
and right needles.
3-needle 4-thread cover stitch is
suitable for stretchy fabrics such as
knits, etc.
51
A triple seam is formed by using left,
middle, and right needles.
1-needle 3-thread stitch is used for sewing
narrow rolled hems.
ATD: C
35
54
Depending on the needle positions used, this machine can sew 2-thread and 3-thread standard width 4 mm
overedge and a 6 mm wide overedge seams.
Also, for overedging heavyweight fabrics, the seam width can be increased still more by turning the overedge
seam width adjustment dial. (See page 29)
Overedge width
Needle used
Needle thread
tension dial
4.0 mm
6.0 mm
Overedge right needle
Overedge left needle
Red
Yellow
36
23. HANDY REFERENCE CHART
Stitch Type
A
T
D
S
L
D
F
L
/
C
Tension Dial Selected : As select ATD option,
the tension dial are set automatically.
Needle
Position
Red
Yellow
Green
Blue
Page
Purple
D
N
N
C
D
2
N
L
4.0mm
narrow
converter
40
G
2
N
L
6.0mm
wide
converter
40
E
2
N
L
4.0mm
narrow
converter
41
E
2
N
L
6.0mm
wide
converter
41
A
N
N
L
4.0mm
narrow
B
N
N
L
6.0mm
wide
F
2
N
L
narrow
F
2
N
L
wide
3-Thread Mock Safety
Stitch Overlock
G
2
N
L
7 4-Thread Mock Safety
A
N
N
L
8 4-Thread Chain Stitch-
I
N
N
L
A
N
N
L
narrow
47
B
N
N
L
wide
47
K
N
N
C
narrow
H
N
N
C
wide
J
N
N
C
C
1
N
L
1 Chain Stitch
2
3
4
2-Thread Wrapped
Edge Overlock
39
2-Thread Overlock
3-Thread Overlock
42
42
4.0mm
5
6
3-Thread Flatlock
Stitch Overlock
2-Thread Overlock
5-Thread Chain Stitch9
3-Thread Overlock
43
6.0mm
43
converter
44
45
converter
46
2.8mm
10
Cover Stitch
Narrow/ Wide
50
5.6mm
50
5.6mm
11 Triple Cover Stitch
Three - Thread
12 Rolled Hem
51
4.0mm
ATD: Auto Tension Dial Selection
DF: Differential Feed
54
SL: Stitch Length
L / C: Upper Looper driving clutch position
*When option 2, 3, 6, 8 selected, use converter.
*When option 1, 10, and 11 selected, turn upper knife down, move seam width finger knob to setting R, and change front cover
attached cover (A) into (B).
*Auto tension settings are based on medium weight fabric and standard # 60 polyester spun thread. It can satisfy most requirements
for sewing. If using different thread number or fabric and the result is not you expected, please adjust in small increments.
37
Caution: Be sure to turn off the power switch.
1
1
Move knife into nonworking position
1
2
See page 10 for instructions on placing upper knife in
nonworking position.
2
To disengage upper looper
Turn handwheel till drive shaft is at its most right position.
2
3
Push clutch button to the left and up for cover stitch / chain
stitch.
3
C
L
To re-engage upper looper
C
L
Turn handwheel till drive shaft is at its most right position.
Push clutch button to the left and down for overlock.
4
4
To install the seam guide plate
Open front cover
1
Knife cover
To remove knife cover lift tab and pull toward you.
2
Tab
3
Seam guide plate
Place the two tabs of the seam guide plate in the slots on the
front cover then snap into place.
4
The markings on the seam guide plate indicate the distance
from the chain stitch needle and the fabric edge. Use this as
a reference guide between the needle and edge of fabric.
Chain stitch
needle
25mm
(1")
2
3
1
Start and end of sewing
When starting to sew, pull the thread chain lightly to the rear
of machine until the needle penetrates the fabric.
When starting to sew after threading the machine, sew 2 ~ 3
cm on a scrap fabric and chain-off to make a chain.
At end of sewing, pull the fabric lightly to the rear of machine
and chain-off.
38
4
5
2
6
24. SUGGESTED TENSION SETTING
1) Chain stitch
How to Sew
NEEDLE POSITION
The chain stitch is sewn with 2 threads, one needle and one
looper. Normally, the machine trims the fabric edge while the
seam is being sewn. However, a chain stitch seam can be placed
at a desired distance from edge of fabric by putting the knife in a
nonworking position, disengaging the upper looper and installing
the chain stitch seam guide plate
AUTO TENSION DIAL
D
SEAM WIDTH FINGER LEVER
R
2~4
STITCH LENGTH
DRIVING CULTCH POSITION
C
CONVERTER
Tension settings may be effected by:
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
N/A
Tension Dial
Fabric
Red
Yellow Green
Blue
Purple
Medium weight
Stitch length for chain stitch should be set at over 2mm.
Note: These are suggested tension settings only.
Correct Balance
Set auto tension dial to D shown at right and test sew on a
sample of your fabric.
Needle thread
Topside
Chain stitch
looper thread
Underside
How to Balance
1
1 When the chain stitch needle thread tension is too loose;
-Turn the needle thread tension fine tuning lever (yellow)
toward the “+”.
-Or, turn the chain stitch looper thread tension fine tuning
lever (purple) toward the “-”.
Needle thread
Topside
Note: If the tension needs to be increased gently move the
tension adjustment lever toward the “+” mark in
increments indicated by the smaller white dots on the
colored fine tuning label on front cover.
If the tension needs to be decreased gently move the
tension adjustment lever toward the “-” mark in
increments indicated by the smaller white dots on the
colored fine tuning label on front cover.
39
Chain stitch
looper thread
Underside
2) 2-Thread Wrapped Edge Overlock
NARROW
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
WIDE
NEEDLE POSITION
AUTO TENSION DIAL
Note: These are suggested tension settings only.
D or G
N
SEAM WIDTH FINGER KNOB
2~4
STITCH LENGTH
L
DRIVING CULTCH POSITION
CONVERTER
Fabric
NARROW
USE
Tension Dial : D
Red
Medium
weight
Fabric
WIDE
Yellow Green
Blue
Purple
Converter
Tension Dial : G
Red
Medium
weight
Yellow Green
Blue
Purple
Converter
Correct Balance
Set auto tension dial to D or G shown at right and test sew on a
sample of your fabric.
Needle thread
Topside
Lower looper thread
Underside
How to Balance
1
When the lower looper thread tension is too tight or needle
thread tension is too loose;
-Turn the lower looper thread tension fine tuning lever (Blue)
toward the “+”.
-Or, turn the needle thread tension fine tuning lever (Red or
Yellow) toward the “-”.
1
Needle thread
Lower looper thread
2 When the lower looper thread tension is too loose;
-Turn the lower looper thread tension fine tuning lever (Blue)
toward the “+”.
Note:
If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
40
Topside
Underside
2
Needle thread
Lower looper thread
Topside
Underside
3) 2-Thread Overlock (NARROW-WIDE)
NARROW
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
WIDE
NEEDLE POSITION
AUTO TENSION DIAL
E
N
SEAM WIDTH FINGER KNOB
See page 11 for instructions on converting upper looper to
converter.
2~4
STITCH LENGTH
L
DRIVING CULTCH POSITION
Note: These are suggested tension settings only.
CONVERTER
Fabric
NARROW
USE
Tension Dial
Red
Medium
weight
Fabric
WIDE
Yellow Green
Blue
Purple
Converter
Tension Dial
Red
Medium
weight
Yellow Green
Blue
Purple
Converter
Correct Balance
Set auto tension dial to E shown at right and test sew on a
sample of your fabric.
Lower looper thread
Topside
Needle thread
Underside
How to Balance
1
When the upper looper thread lies on the underside of the
fabric;
-Turn the upper looper thread tension fine tuning lever
(Green) toward the “+”.
- Or, turn the lower looper thread tension fine tuning lever
(Blue) toward the “-”.
1
Needle thread
Topside
2 When the lower looper thread appears on the top of the
fabric;
-Turn the lower looper thread tension fine tuning lever
(Blue) toward the “+”.
-Or, turn the upper looper thread tension fine tuning lever
(Green) toward the “-”.
Note:
If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
Lower looper thread
Underside
2
Lower looper thread
Topside
Needle thread
Underside
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
41
4) 3-Thread Overlock
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
NARROW
WIDE
NEEDLE POSITION
AUTO TENSION DIAL
Note: These are suggested tension settings only.
A or B
SEAM WIDTH FINGER KNOB
N
STITCH LENGTH
N
DRIVING CULTCH POSITION
L
CONVERTER
N/A
Tension Dial : A
Fabric
NARROW
Red
Yellow Green
Red
Yellow Green
Blue
Purple
Medium
weight
Tension Dial : B
Fabric
WIDE
Blue
Purple
Medium
weight
Upper looper thread
Correct Balance
Set auto tension dial to A or B shown at right and test sew on a
sample of your fabric.
Needle thread
Topside
Lower looper thread
Underside
How to Balance
1
Upper looper thread
When the upper looper thread lies on the underside of the
fabric;
-Turn the upper looper thread tension fine tuning lever
(Green) toward the “+”.
- Or, turn the lower looper thread tension fine tuning lever
(Blue) toward the “-”.
2 When the lower looper thread appears on the top of the
fabric;
-Turn the lower looper thread tension fine tuning lever
(Blue) toward the “+”.
-Or, turn the upper looper thread tension fine tuning lever
(Green) toward the “-”.
1
Needle thread
Underside
Upper looper thread
2
Needle thread
3 When the needle thread is too loose, turn the needle tension
fine tuning lever (Red or Yellow) toward the “+”, or loosen
both looper tensions equally toward the “-”.
Note:
If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
42
Lower looper thread
Topside
Topside
Lower looper thread
Underside
Upper looper thread
3
Needle thread
Topside
Lower looper thread
Underside
5) 3-Thread Flatlock
NARROW
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
WIDE
NEEDLE POSITION
AUTO TENSION DIAL
F
N
SEAM WIDTH FINGER KNOB
Note: These are suggested tension settings only.
2~4
STITCH LENGTH
L
DRIVING CULTCH POSITION
CONVERTER
Fabric
NARROW
N/A
Tension Dial
Red
Yellow Green
Red
Yellow Green
Blue
Purple
Medium
weight
Fabric
WIDE
Tension Dial
Blue
Purple
Medium
weight
Correct Balance
Set auto tension dial to F shown at right and test sew on a
sample of your fabric.
Needle thread
Upper looper thread
Topside
How to Balance
1
Needle thread
Lower looper thread
Underside
1
When the lower looper thread tension is too loose;
-Turn the lower looper thread tension fine tuning lever (Blue)
toward the “+”.
-Or, turn the needle thread tension fine tuning lever (Red or
Yellow) toward the “-”.
Needle thread
Upper looper thread
Topside
Needle thread
Lower looper thread
Underside
2
When the upper looper thread tension is too loose;
-Turn the upper looper thread tension fine tuning lever (green)
toward the “+”.
-Or, turn the needle thread tension fine tuning lever (Red or
Yellow) toward the “-”.
3 When the needle thread tension is too loose;
-Turn the needle thread tension fine tuning lever (Red or
Yellow) toward the “+”.
-Or, turn the upper looper thread tension fine tuning lever
(Green) toward the “-”.
Note:
If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
43
2
Needle thread
Upper looper thread
Topside
Needle thread
Lower looper thread
Underside
3
Needle thread
Upper looper thread
Topside
Needle thread
Lower looper thread
Underside
6) 3-Thread Mock Safety Stitch Overlock
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
NEEDLE POSITION
AUTO TENSION DIAL
G
N
SEAM WIDTH FINGER KNOB
Note: These are suggested tension settings only.
2~4
STITCH LENGTH
L
DRIVING CULTCH POSITION
CONVERTER
USE
Tension Dial
Fabric
Red
Medium weight
Yellow Green
Blue
Purple
Converter
Right Needdle thread
Correct Balance
Set auto tension dial to G shown at right and test sew on a
sample of your fabric.
Left Needle thread
Lower looper thread
Topside
1
Right Needdle thread
1
How to Balance
Underside
When the lower looper thread tension is too loose;
-Turn the lower looper thread tension fine tuning lever (Blue)
toward the “+”.
Left Needle thread
2 When the left needle thread tension is too loose;
-Turn the left needle thread tension fine tuning lever (Red)
toward the “+”.
Topside
Underside
Right Needdle thread
2
3 When the right needle thread tension is too loose;
-Turn the needle thread tension fine tuning lever (Yellow)
toward the “+”.
Left Needle thread
Topside
Note:
If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
44
Lower looper thread
3
Underside
Right Needdle thread
Left Needle thread
Topside
Lower looper thread
Lower looper thread
Underside
7) 4-Thread Mock Safety Stitch Overlock
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
NEEDLE POSITION
Note: These are suggested tension settings only.
AUTO TENSION DIAL
A
SEAM WIDTH FINGER KNOB
N
STITCH LENGTH
N
L
DRIVING CULTCH POSITION
CONVERTER
N/A
Tension Dial
Fabric
Red
Yellow Green
Blue
Purple
Medium weight
Upper looper thread
Correct Balance
Set auto tension dial to A shown at right and test sew on a
sample of your fabric.
Right Needle thread
Lower looper thread
Left needle thread
Topside
Underside
How to Balance
1
Upper looper thread
When the upper looper thread lies on the underside of the
fabric;
-Turn the upper looper thread tension fine tuning lever (Green)
toward the “+”.
-Or, turn lower looper thread tension fine tuning lever (Blue)
toward the “-”.
2 When the lower looper thread appears on the top of the
fabric;
-Turn the lower looper thread tension fine tuning lever (Blue)
toward the “+”.
-Or, turn the upper looper thread tension fine tuning lever
(Green) toward the “-”.
1
Right Needle thread
Lower looper thread
Left needle thread
Topside
Underside
Upper looper thread
2
Right Needle thread
Left needle thread
Lower looper thread
Underside
Topside
3 When the left needle thread tension is too loose;
-Turn the needle thread tension fine tuning lever (Red) toward
the “+”.
-Or turn both looper tensions equally toward the “-”.
4 When the right needle thread tension is too loose;
-Turn the right needle thread tension fine tuning lever (Yellow)
toward the “+”.
Upper looper thread
3
Right Needle thread
Underside
Topside
Note:
If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
Lower looper thread
Left needle thread
Upper looper thread
4
Right Needle thread
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
45
Left needle thread
Topside
Lower looper thread
Underside
8) 4-Thread Chain Stitch-2-Thread Overlock
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
NEEDLE POSITION
AUTO TENSION DIAL
I
N
SEAM WIDTH FINGER KNOB
Note: These are suggested tension settings only.
2~4
STITCH LENGTH
L
DRIVING CULTCH POSITION
CONVERTER
USE
Tension Dial
Fabric
Red
Yellow Green
Medium weight
Lower looper thread
Blue
Purple
Converter
Overedge Needle thread
Correct Balance
Set auto tension dial to I shown at right and test sew on a
sample of your fabric.
Chain stitch Needle thread
Topside
Chain stitch looper thread
Underside
Lower looper thread
How to Balance
1
Overedge Needle thread
1
When the lower looper thread appears on the top of the
fabric;
-Turn the lower looper thread tension fine tuning lever (Blue)
toward the “+”.
-Or, turn the upper looper thread tension fine tuning lever
(Green) toward the “-”.
Chain stitch Needle thread
Topside
2 When the right needle thread is too loose;
-Turn the right needle thread tension fine tuning lever (Yellow)
toward the “+”.
Chain stitch looper thread
Underside
Lower looper thread
Overedge Needle thread
2
3 When the chain stitch needle thread tension is too loose;
-Turn the chain stitch needle thread tension fine tuning lever
(Red) toward the “+”.
-Or, turn the chain stitch looper thread tension fine tuning
lever (Purple) toward the “-”.
Chain stitch Needle thread
Topside
Note:
If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
46
Chain stitch looper thread
Underside
Lower looper thread
Overedge Needle thread
3
Chain stitch Needle thread
Topside
Chain stitch looper thread
Underside
9) 5-Thread Chain Stitch 3-Thread Overlock
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
NARROW
WIDE
NEEDLE POSITION
AUTO TENSION DIAL
Note: These are suggested tension settings only.
A
B
SEAM WIDTH FINGER KNOB
N
STITCH LENGTH
N
DRIVING CULTCH POSITION
L
CONVERTER
N/A
Tension Dial
Fabric
Red
Yellow Green
Blue
Purple
Medium weight
Upper looper thread
Lower looper thread
Correct Balance
Set auto tension dial to B shown at right and test sew on a
sample of your fabric.
Overedge Needle thread
Chain stitch looper
thread
Topside
Chain stitch needle thread
How to Balance
1
Underside
Upper looper thread
When the upper looper thread lies on the underside of the
fabric;
-Turn the upper looper thread tension fine tuning lever (Green)
toward the “+”.
-Or, turn lower looper thread tension fine tuning lever (Blue)
toward the “-”.
1
Lower looper thread
Overedge Needle thread
Topside
Chain stitch looper thread
Underside
Chain stitch needle thread
2 When the lower looper thread appears on the top of the
fabric;
-Turn the lower looper thread tension fine tuning lever (Blue)
toward the “+”.
-Or, turn the upper looper thread tension fine tuning lever
(Green) toward the “-”.
3 When the left needle thread tension is too loose;
-Turn the left needle thread tension fine tuning lever (Yellow)
toward the “+”.
Upper looper thread
Lower looper thread
2
Overedge Needle thread
Chain stitch looper thread
Topside
Chain stitch needle thread
Upper looper thread
Underside
Lower looper thread
3
4 When the chain stitch needle thread tension is too loose;
-Turn the chain stitch needle thread tension fine tuning lever
(Red) toward the “+”.
-Or, turn the chain stitch looper thread tension fine tuning
lever (Purple) toward the “-”.
Overedge Needle thread
Topside
Chain stitch needle thread
Note:
If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
47
Chain stitch looper thread
Underside
Upper looper thread
Lower looper thread
4
Overedge Needle thread
Chain stitch looper thread
Topside
Chain stitch needle thread
Underside
25. HOW TO SEW A COVER STITCH
This machine can produce a 3-thread 5.6 mm wide bottom
cover stitch.
The cover stitch can be used for covering, binding or top-stitching
necklines and for hemming the bottom, of T-shirts and sweat suits,
etc. in addition to flat joining seams (plain seaming).
The cover stitch is most suitable for stretchy fabrics such as knit.
It also can be used in woven fabrics such as denim, but careful
attention must be paid to the tension settings or there is the
possibility of thread breakage and or skipping.
If you experience skipping or thread breakage sewing denim
change needles first and then adjust the tensions little by little
(1/4 number at a time).
Machine Set up
Caution: Be sure to turn off the power switch.
Open front cover. (See page 7)
Disengage upper looper. (See page 38)
Place the movable upper knife in the non working position.
(See page 10)
Set seam width finger lever on "R" side. (See page 12)
Set C/L clutch (see page 38).
C
B
D
Remove overlock right needle (B) and overlock left needle (A).
A
E
For Triple 5.6mm cover stitch, install cover stitch right needle (E),
cover stitch middle needle (D) and cover stitch left needle (C).
(See pages 23 ~ 27)
Install seam guide plate. (See page 38)
The graduations on seam guide plate indicate the distance from
cover stitch middle needle. Use it as a guide when positioning
fabric edge.
Close looper cover.
Cover stitch
middle needle
(D)
2
1
25mm
( 1" )
48
3
4
5
2
6
Additional Information About Cover Stitch
1
At start of sewing
1 Raise presser foot.
3
2 Place fabric under presser foot behind the needle.
3 Lower presser foot.
2
4 Note: When you start to sew from the middle of the
fabric, place the fabric at the desired of starting
point of sewing.
4
5
At end of sewing
stop sewing when the fabric is not under the needles
5 Raise presser feet.
6 Turns the handwheel toward you one circle (counter
clockwise) ,then turns handwheel one circle back.
(Clockwise)
6
7 Pull out the fabric lightly to rear of machine and cut
the threads to take out the fabric.
8 Note:
7
The instructions given when sewing cover stitches
because chaining-off at the end of sewing is not
possible.
All chain and cover stitches must be started with
fabric under needle.
8
49
10. Cover Stitch (3-Thread) Wide/Narrow
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
AUTO TENSION DIAL
Stitch length for cover stitch should be set at over N (2.5mm)
SEAM WIDTH FINGER KNOB
NARROW
WIDE
NEEDLE POSITION
K or H
R
STITCH LENGTH
N~4
C
DRIVING CULTCH POSITION
Note: These are suggested tension settings only.
N/A
CONVERTER
Tension Dial: K
NARROW
Cover stitch
looper Thread
Polyester
Red
Yellow Green
Red
Yellow Green
Blue
Purple
Woolly nylon
Correct Balance
Tension Dial: H
WIDE
Set auto tension dial to K or H shown at right and test sew on a
sample of your fabric.
Cover stitch
looper Thread
Polyester
Blue
Purple
Woolly nylon
Cover stitch right needle thread
How to Balance
1
Cover stitch
Left needle thread
When the cover stitch looper thread is too loose;
-Turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the “+”.
Topside
Cover stitch
looper thread
Underside
Cover stitch right needle thread
2
3
4
When the cover stitch left needle thread tension is too loose;
-Turn the cover stitch left needle thread tension fine tuning
lever (Red) toward the “+”.
-Or, turn cover stitch looper thread tension fine tuning lever
(Purple) toward the “-”.
When the cover stitch right needle thread tension is too loose;
-Turn the cover stitch right needle thread tension fine tuning
lever (Yellow) or (Red) toward the “+”.
-Or, turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the “-”.
When the top surface of fabric bulges between needle threads
and the seams on the underside of the fabric becomes tight;
-Turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the “-”.
Note: If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gentily move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
50
Cover stitch
looper thread
1
Cover stitch
Left needle thread
Topside
Underside
Cover stitch right needle thread
2
Cover stitch
looper thread
Cover stitch
Left needle thread
Topside
Underside
Cover stitch right needle thread
Cover stitch
looper thread
3
Cover stitch
Left needle thread
Topside
Underside
Cover stitch right needle thread
4
Cover stitch
looper thread
Cover stitch
Left needle thread
Topside
Underside
11. Triple Cover Stitch
Tension settings may be effected by :
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread
NEEDLE POSITION
Stitch length for cover stitch should be set at over N (2.5mm)
AUTO TENSION DIAL
J
SEAM WIDTH FINGER KNOB
R
N~4
STITCH LENGTH
C
DRIVING CULTCH POSITION
Note: These are suggested tension settings only.
CONVERTER
Cover stitch
looper Thread
N/A
Tension Dial
Red
Yellow Green
Blue
Purple
Polyester
Woolly nylon
Correct Balance
Set auto tension dial to J shown at right and test sew on a sample
of your fabric.
Cover stitch right needle thread
Cover stitch
middle needle thread
Cover stitch
looper thread
How to Balance
1
When the cover stitch looper thread is too loose;
-Turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the “+”.
2
When the cover stitch left needle thread tension is too loose;
-Turn the cover stitch left needle thread tension fine tuning
lever (Red) toward the “+”.
-Or, turn cover stitch looper thread tension fine tuning lever
(Purple) toward the “-”.
3
When the cover stitch middle needle thread tension is too
loose;
-Turn the cover stitch middle needle thread tension fine tuning
lever (Yellow) toward the “+”.
-Or, turn cover stitch looper thread tension fine tuning
lever (Purple) toward the “-”.
4
5
When the cover stitch right needle thread tension is too loose;
-Turn the cover stitch right needle thread tension fine tuning
lever (Green) toward the “+”.
-Or, turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the “-”.
When the top surface of fabric bulges between needle threads
and the seams on the underside of the fabric becomes tight;
-Turn the cover stitch looper thread tension fine tuning lever
(Purple) toward the “-”.
Note: If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
51
Cover stitch
Left needle thread
Topside
2
1
3
Underside
4
Cover stitch right needle thread
Cover stitch
middle needle thread
Cover stitch
looper thread
Cover stitch
Left needle thread
Topside
Underside
5
Cover stitch right needle thread
Cover stitch
middle needle thread
Cover stitch
looper thread
Cover stitch
Left needle thread
Topside
Underside
Securing the seam end
1 Since the seams formed by cover stitch unravel when the
looper thread is pulled out at the end of sewing, secure the
seam end in the following manner.
2 When sewing through to the edge of fabric, among the threads
coming out of the fabric edge, knot the needle threads (2 or 3
threads) together first, as shown on the right illustration. Then,
tie these threads with the looper threads.
3 When sewing is stopped halfway, pull out the needle threads
(2 or 3 threads) on the underside of the fabric and knot the
threads in the same manner as described above.
4 Cut extra threads.
Note: Normally, the seams at the start of sewing do not unravel,
but it is safe to secure the seam end following the same
steps as described when sewing through to the edge of
fabric.
52
26. HOW TO SEW A ROLLED HEM
Rolled hemming is done by rolling and overedging the fabric edge.
Light weight fabrics such as lawn, voile, organdy, crepe, etc.
perform the best.
Rolled hemming is not suited for heavy or stiff fabrics.
Note: Rolled hemming can only be performed with the right needle.
Machine Set up
1
Caution: Be sure to turn off power switch.
R
Remove the left needle, chain stitch needle and cover stitch
needle(s).
N
1
R
2
2 Move the rolled hem lever to setting R.
3 Set the width adjustment dial to N.
N
3
5.5
N
6.5
4 Set stitch length dial to "1~2" and a fine seam will be sewn.
Thread: A variety of thread combinations can be used for rolled
hemming. Thicker threads require a longer stitch length, while
thinner threads sew well when using a shorter stitch length.
53
4
N
2
1
3-Thread Narrow Hem
Fabric edge will roll within stitching.
NEEDLE POSITION
Upper and lower looper threads will interlock at the edge of
stitching.
AUTO TENSION DIAL
A
SEAM WIDTH FINGER KNOB
R
1~2
STITCH LENGTH
L
DRIVING CULTCH POSITION
N/A
CONVERTER
Light Weight
fabric
Tension Dial
Red
Yellow Green
Blue
Purple
Polyester
Woolly nylon
Upper looper thread
Correct Balance
Set auto tension dial to A shown at right and test sew on a sample
of your fabric.
Note: If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
Needle thread
Lower looper thread
Topside
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
Underside
3-Thread Rolled Hem
NEEDLE POSITION
Fabric edge will roll within the stitching.
The lower looper thread will pull the upper looper thread to under
side of your fabric.
AUTO TENSION DIAL
C
SEAM WIDTH FINGER KNOB
R
1~2
STITCH LENGTH
L
DRIVING CULTCH POSITION
N/A
CONVERTER
Correct Balance
Set auto tension dial to C shown at right and test sew on a sample
of your fabric.
Light Weight
fabric
Tension Dial
Red
Yellow Green
Blue
Purple
Polyester
Woolly nylon
Note: For a beautiful rolled hem, thread the upper looper with wooly
nylon and the needle and lower looper with lightweight regular
thread.
Note: If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
Needle thread
Upper looper thread
Lower looper thread
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
54
Topside
Underside
Needle thread
Attach 2-Thread converter to upper looper (See page 11)
NEEDLE POSITION
2-Thread Narrow Hem
AUTO TENSION DIAL
Fabric edge will roll within stitching.
E
SEAM WIDTH FINGER KNOB
R
STITCH LENGTH
Upper and lower looper threads will interlock at the edge of
stitching.
1~2
L
DRIVING CULTCH POSITION
USE
CONVERTER
Light Weight
fabric
Tension Dial
Red
Yellow Green
Woolly nylon
Correct Balance
Set auto tension dial to E shown at right and test sew on a sample
of your fabric.
Blue
Purple
CONVERTER
Lower looper thread
Note: For a beautiful rolled hem, thread the lower looper with wooly
nylon and the needle with lightweight regular thread.
Note: If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
2-Thread Rolled Hem
Needle thread
Topside
Underside
NEEDLE POSITION
Fabric edge will roll within the stitching.
The lower looper thread will pull the upper looper thread to under
side of your fabric.
AUTO TENSION DIAL
D
SEAM WIDTH FINGER KNOB
R
STITCH LENGTH
1~2
L
DRIVING CULTCH POSITION
USE
CONVERTER
Light Weight
fabric
Tension Dial
Red
Yellow Green
Polyester
CONVERTER
Woolly nylon
CONVERTER
Blue
Purple
Correct Balance
Set auto tension dial to D shown at right and test sew on a sample
of your fabric.
Note: For a beautiful rolled hem, thread the lower looper with wooly
nylon and the needle with lightweight regular thread.
Note: If the tension needs to be increased gently move the tension
adjustment lever toward the “+” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
If the tension needs to be decreased gently move the tension
adjustment lever toward the “-” mark in increments indicated
by the smaller white dots on the colored fine tuning label on
front cover.
55
Needle thread
Topside
Lower looper thread
Underside
Additional Information About Rolled Hemming
Hold the thread chain when you begin sewing to keep it from
curling into the seam.
Turn the differential feed to 0.8 or 0.6 to eliminate puckering of
fine fabrics.
The minimum overedge stitch width that can be obtained for
rolled hemming is approximately 1.5 mm (1/16 inch) since the
cutting width cannot be set below 3.5 mm (9/64 inch).
To Secure the Rolled Hem Thread Chain
Apply a small drop of liquid seam sealant to the end of the seam.
Allow to dry, then cut the chain close to the stitches.
Note: Test the liquid seam sealant for color fastness before use.
56
27. STITCH VARIATIONS AND SEWING
TECHNIQUES
How to Sew a Flatlock Decorative Seam
A flatlock stitch is achieved by adjusting the tension of the 2-thread
or 3-thread overlock stitch, sewing the seam, and then pulling the
fabric apart to flatten the seam.
The flatlock stitch can be used as a construction and decorative
stitch or for ornamentation only.
Machine Set Up
Use either overedge right needle or left needle.
Begin with the machine threaded and tension balanced for the
2-thread overlock (page 41) or 3-thread flatlock stitch (page 43).
Flatlocking a Seam
Place the fabric wrong sides together to sew a decorative stitch
on the right side of the garment.
Sew the seam, trimming the excess fabric.
The needle thread (Red or Yellow) will form a V on the underside
of the fabric.
The lower looper thread will pull into a straight line at the fabric
edge.
Needle thread
Upper looper thread
Needle thread
Topside
Lower looper thread
Underside
Pull on opposite sides of the seam to pull the stitches flat.
57
Decorative Flatlocking
1
1
Place the movable upper knife in the nonworking position
(page 10). The fabric is not trimmed on this stitch.
1
2
2 Fold fabric wrong sides together.
2
Position the fabric so the seam is sewn with part of the stitch
extending off the fabric.
3 Pull on opposite sides of the stitch to flatten.
3
Additional Information About Flatlocking
The tensions must be correctly adjusted for the fabric to pull flat.
When sewing with 3-Thread flatlock. The upper looper thread is
the prominent thread in the flatlock stitch. Place a decorative
threading the upper looper and inconspicuous threads in the
lower looper and needle.
Needle Thread
For a ladder stitch, sew seam with right sides together. The needle
thread will be the prominent thread that creates the ladder.
Underside
Looper Thread
Topside
58
How to Sew an Overlock Blind Hem
The excess fabric is trimmed and the hem is sewn and the raw
edges are overlocked in one operation.
1
The overlock blind hem is best suited for sewing knit wear. It
provides a durable finish that is almost invisible.
1 Use right needle and adjust machine for a narrow 3-thread
overlock stitch. (See page 42)
Note: The three-thread flatlock stitch can also be used.
(See page 43)
2
2 Set the stitch length dial at 4.
4
3
Wrong Side
3 Fold the hem to the wrong side of the fabric, then back to the
right side with 6 mm (1/4 inch) beyond the fold.
3
Right Side
4 Stitch on the extended hem edge, allowing the machine needle
to barely catch the edge of the fold.
4
Note: An optional blindhem foot is available.(See page 67)
How to Sew Pin Tucks
1
Sew decorative pin tucks on the fabric before cutting out the
garment.
Use right needle and adjust machine for a narrow 3-thread
overlock stitch. (See page 42)
1
Note: The rolled hem can also be used for this technique.
2
1 Place the movable upper knife in the nonworking position.
(See page 10)
Mark the fabric with the desired number of pin tucks using a
water-soluble fabric marker.
59
2 Fold the fabric with the wrong sides together. Sew with the
stitches lying neatly on the edge of the fold.
3 Press the pin tucks in the same direction.
2
3
Turning Square Corners
Outside Corner
1
1 Cut out approximately 2cm (51/64 inch) from the corner, in line
with the overedge seam edge.
Cutting line
Sew one stitch beyond point (A) and stop.
A
Raise needle and presser foot.
2 cm
2 cm
2 Pull the fabric to the rear of the machine just enough to
release the thread caught on the finger of the throat plate.
2
Note: Presser foot has been removed to show detail.
Cutting line
A
3 Turn the fabric and lower the presser foot so that the knife
is positioned in line with the cut edge.
3
Knife
Pull slack threads up, then start to sew.
Cutting line
60
Inside Corner
1 Cut inside corner up to seam line as shown
1
Seam line
Cut
2
2 Sew along seam line.
Sew up to end of fold. (Leave needle in fabric)
Raise presser foot. (Leave needle in fabric)
Needle position
Spread fold and re-fold so that seam line is straight.
Lower presser foot.
3
3 Continue stitching on seam line.
Seam line
Pin Placement
Insert pins to the left of the presser foot. The pins will be easy to
remove and are away from the cutting action of the knives.
Caution: Sewing over pins will damage and /or destroy
the cutting edge of the knives.
Securing the Thread Chain
Thread a large eye, hand sewing needle (such as a tapestry
needle) with the thread chain.
Insert the needle into the end of the seam to secure thread.
Note: To secure a rolled hem thread chain, see page 56.
61
How to Reinforce a Seam
Inserting twill tape while overedge sewing will stabilize the seam.
1 Insert the tape through the hole in the front of the foot.
1
2 Position the tape under the foot to the back of the machine
and sew the garment seam.
2
3
3 The tape is attached as the seam is sewn.
Braiding by Chaining off
Place the movable upper knife in nonworking position.
1 Insert filler cord such as yarn or twill type through the hole in
the front of the foot.
1
Position the filler cord under the foot and chain off the desired
length.
2 Chained off braids can be used individually or woven into 3 or
4 ply braids.
62
2
28. MACHINE MAINTENANCE
An overlock machine requires more maintenance than a
conventional machine for two reasons:
1) A lot of lint is produced due to the cutting action of the knives.
2) An overlock runs at a very high speed and needs to be oiled
frequently to lubricate the internal working parts.
Cleaning the Machine
Danger: Before cleaning your machine, disconnect power
line plug from the wall receptacle.
Clean the lint from the looper and knife area often with a dry lint
brush.
oil
Oiling the Machine
Danger: Before lubricating your machine, disconnect power
line plug from the wall receptacle.
A
B
The oiling points shown in the diagram, should be oiled periodically.
Note: Use only sewing machine oil. Do not use any other oil or
damage could result.
C
63
D
How to Replace the moveable upper Knife
Danger: Before replacing the moveable upper knife,
disconnect power line plug from the wall
receptacle.
a
The moveable knife should be changed when it becomes dull.
b
Be sure that the power line plug is disconnected from the electric
source.
0.5~1mm
The moveable knife can be replaced according to the directions
provided, however if there are any difficulties experienced, consult
your dealer to make the replacement.
Open the front cover and set the moveable upper knife (a) in the
working position.
Loosen the moveable knife set screw (b) and remove the
moveable knife (a).
c
Turn the handwheel to lower the moveable knife holder to its
lowest position.
In this position, put a new moveable knife in the groove of the
moveable knife holder, making sure that the edge of the
moveable knife is approximately 0.5 to 1.0 mm below the surface
of the fixed cutting blade (c).
Tighten moveable knife set screw (b).
64
b
How to Change Light Bulb
1
Danger: Always unplug before re-lamping.
Light cover screw
Light bulb is available at your local retailer. Take old bulb to the
retailer and ask for same bulb.
If voltage indicated on the electrical rating plate of your machine is
120V, ask for light bulb conforming to following specification.
- Bayonet type: 110~120V, 15W
Glass shape: T-20
Lamp cap: E12
Overall length: 48mm
1 Remove light cover screw then while pushing the cover lightly
to the rear, swing cover to the left and remove from machine
as shown in the illustration. Turn bulb to the left to remove. To
replace the bulb, push bulb into the socket and turn to the right.
Caution: Be sure the light bulb has cooled off before
changing with a new one.
Warning: Replace the light cover first before connecting
the power line plug.
Replace
Remove
Replace
Remove
If voltage indicated on the electrical rating plate of your machine
is 220-240V, ask for light bulb conforming to following specification.
-Edison type (screw type): 220 ~240V, 15W
Glass shape: T-22
Lamp cap: E14
Overall length: 56mm
Remove light cover screw then while pushing the cover lightly to
the rear, swing cover to the left and remove from machine as
shown in the illustration. Turn bulb to the left to remove. To
replace the bulb, screw bulb into the socket and turn to the right.
65
29. SNAP ON PRESSER FOOT REMOVAL/
REPIACEMENT
The following optional presser feet specially prepared for this
machine are available at your local retailer.
Note: Do not use presser feet made for other machines. Use of
such presser feet may result in interference with the needle
and knife and can be hazardous.
The snap-on type presser foot of this machine permits easy
removal and replacement.
A
C
Caution: Be sure to disconnect the power line plug or turn
off the power switch when changing the presser
foot.
Snap-On Type Presser Foot
Removal
Raise presser foot and raise needle bar to its highest position.
Press red colored lever (A) located on back of clamp under the
presser foot shank, raise presser bar to its highest position and
while holding the presser bar in this position, remove the presser
foot.
B
Replacement
Place presser foot on needle plate under presser foot shank so
that hinge pin (C) will fit in slot (B) of the shank. Then lower
presser bar with lifter.
If presser foot can not be attached to presser foot shank easily,
raise presser bar lifter to its highest position and while holding it
in this position, place presser foot under the presser foot shank.
Then lower presser bar.
Raise presser bar and make sure the presser foot is properly
attached to the presser foot shank.
66
C
30. OPTIONAL PRESSER FEET
Elastic Foot
This foot is used for attaching elastic tape to the garment
while the amount of strech can be adjusted and remain
uniform.
Blindhem Foot
This foot is for sewing cuffs on knit fabrics, skirt and trouser
seams where seam should not be visible.
Ruffling Foot
This foot is most suited for gathering when sewing tiered
skirts, yokes, cuffs and frills on skirts, etc.
This foot is also suited for sewing two fabrics together and
gathering the bottom fabric in one operation.
Beading Foot
This foot is used for sewing on beads, etc.
Cording Foot
This sewing foot is suited for serging cording or piping
between two layers of fabric for a decorative touch.
Taping Foot
This sewing foot is suited for guiding ribbon and tapes.
67
31. TROUBLESHOOTING CHART
Problem
Solution
Page
Fabric does not feed well
- Lengthen stitch length.
- Increase presser foot pressure for heavy weight fabric.
- Decrease presser foot pressure for lightweight fabric.
29
30
30
Needle breaks
- Insert needle correctly.
- Do not pull fabric while sewing.
- Tighten needle set screw.
- Use a larger needle on heavy fabrics.
13
33
13
13
Thread breaks
- Check threading.
- Check for tangled or caught thread.
- Insert needle correctly.
- Insert new needle, current needle may be bent or have a blunt point.
- Use only high quality thread.
- Loosen thread tension.
Stitch skip
- Insert new needles, current needles may be bent or have a blunt point.
Use only recommended needles HAx1 / ELx705
6
13
- Tighten needle set screw.
13
- Insert needles correctly.
13
- Change type or size of needles.
14~27
- Check threading.
30
- Increase presser foot pressure.
69
- Use a high quality thread.
Irregular stitches
- Balance thread tension.
- Check for tangled or caught thread.
- Check threading.
39~48
28
14~27
Fabric puckers
- Loosen thread tension.
- Check for tangled or caught thread.
- Use high quality thread.
- Shorten stitch length.
- Decrease presser foot pressure for lightweight fabrics.
39~51
28
69
29
30
Irregular trimming
- Check alignment of knives.
- Replace one or both knives.
64
64
Fabric jams
- Close front cover before sewing.
- Check for tangled or caught thread.
- Compress thick layers of fabric with conventional machine before
sewing with overlock.
- Connect machine to power source.
7
28
Machine does not operate
68
14~27
28
13
6
69
32~48
7
32. FABRIC , THREAD AND NEEDLE GUIDE
Type of Fabric
Type of Thread
Needle
HAx1 / ELx705
WOVEN
Lightweight
Lawn, Organdy, Voile,
Crepe, etc.
Medium Weight
Muslin, Seersucker, Satin,
Gabardine, Broadcloth, etc
Heavy Weight
Oxford, Denim, Tweed,
Serge,Corduroy
Cotton: #100
Silk/ Rayon: #100
Spun: #80 ~ #90
Polyester: #80 ~ #100
Cotton: #60 ~ #80
Silk/ Rayon: #50
Spun: #60 ~ #80
Polyester: #60 ~ #80
Cotton: #40 ~ #60
Silk/ Rayon: #40 ~ #60
Spun:#60 ~ #80
Polyester: #50 ~ #80
#11/80
#14/90, #11/80
#14/90
KNIT
Tricot
Jersey
Wool (woven, knit)
Spun: #80 ~ #90
Polyester: #60 ~ #80
#11/80
Spun: #60 ~ #80
Polyester: #60 ~ #80
Cotton: #60 ~ #80
#14/90, #11/80
Spun: #60 ~ #80
Polyester: #50 ~ #60
Woolly nylon
Woolly Polyester
#14/90, #11/80
69
33. SPECIFICATION
Specification
Item
Sewing speed
1,300 spm maximum
Stitch length (feed amount)
1~4 mm (standard: rolled hemming 1-2, ordinary overedge N=2.5)
Differential feed ratio
1:0.6 ~ 1:2 (with differential feed machine)
Overedge stitch width
Rolled hemming 1.5 mm, ordinary overedge 3.0 ~ 9.8 mm
(standard 4 mm)
Cover stitch needle gauge
Two needles: 2.8 mm (narrow), 5.6 mm (wide)
Triple needles: 5.6 mm
Needle bar stroke
27 mm
Pressure foot rise
4.5 mm
Needle
HAx1 (130/705H) or ELx705 ( #14 or #11)
Number of threads
2~5
Machine dimensions (mm)
Width
Depth
Height
360
290
300
Weight (kg)
9.0Kgs /19.5Lbs
70