JUKI AKANE MO-3000QVP User manual

MO-3000QVP
INSTRUCTION MANUAL
MANUAL DE INSTRUCCIONES
MANUEL D’INSTRUCTIONS
2-Needle, 2/3/4-Thread Overlock Sewing Machine
Maquina de coser Sobreorilladora de 2 Agujas, 2/3/4 Hilos
Surjeteuse-Raseuse 2 Aiguilles, 2/3/4 Fils
EN
IMPORTANT:
Read all safety regulations carefully
and understand them before using your
sewing machine.
Retain this instruction manual for future
reference.
IMPORTANTE:
Lea cuidadosamente todas las reco-
mendaciones con respecto a la segu-
ridad y comprendalas perfectamente
antes de usar su maquina.
Guarde este libro de instrucciones para
referencias futuras.
IMPORTANT:
Avant de mettre la machine en marche,
lire attentivement et assimiler les regles
de securite de ce manuel.
Conserver le manuel an de pouvoir le
consulter ul terieurement.
ES
FR

“IMPORTANT SAFETY INSTRUCTIONS”
When using an electrical appliance, basic safety precautions should always be followed, including
the following: Read all instructions before using this sewing machine.
“DANGER ___ To reduce the risk of electric shock:”
1. The appliance should never be left unattended when plugged in.
2.
Always unplug this appliance from the electric outlet immediately after using and before cleaning.
“WARNING ___ To reduce the risk of burns, re, electric shock, or injury to persons:”
1. Do not use the appliance as a toy. Caution is advised when the appliance is used by children, or
near children. This sewing machine can be used by children aged from 8 years and above and
persons with reduced physical, sensory or mental capabilities or lack of experience and knowl-
edge if they have been given supervision or instruction concerning use of the sewing machine
in a safe way and understand the hazards involved. Children shall not play with the sewing
machine. Cleaning and user maintenance shall not be made by children without supervision.
2. Use this appliance only for its intended use as described in this manual. Use only attachments
recommended by the manufacturer as contained in this manual.
The power cord and foot controller supplied in the accessory bag are for this model only.
Do not use the power cord and foot controller other than those supplied.
3. Never operate this appliance 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 appliance to the nearest au-
thorized dealer or service center for examination, repair, electrical or mechanical adjustment.
4. Never operate the appliance with any air openings blocked. Keep ventilation openings of the
sewing machine and foot control free from the accumulation of lint, dust, and loose cloth.
5.
Keep ngers away from all moving parts. Special care is required around the sewing machine needle.
6. Always use the proper stitch plate. The wrong plate can cause the needle to break.
7. Do not use bent needles.
8. Do not pull or push fabric while stitching. It may deect the needle causing it to break.
9. Do not carry out sewing with a marking pin stuck in the material since doing so can cause knife/
needle breakage. In addition, do not attempt to cut anything other than fabric and thread with
the upper/lower knives.
10. Switch the sewing machine o󰀨 “O” when making any adjustments in the needle area, such as
threading needle, changing needle, threading looper, or changing presser foot and the like.
11. Always unplug the machine from the electrical outlet when removing covers, when covers are
opened to thread the loopers, when lubricating or when making any other user servicing adjust-
ments mentioned in the instruction manual.
12. Never drop or insert any object into any opening.
13. Do not use outdoors.
14.
Do not operate where aerosol (spray) products are being used or where oxygen is being administered.
15. To disconnect, turn all controls to the o󰀨 “O” position, then remove plug from outlet.
16. Do not unplug by pulling on cord. To unplug, grasp the plug, not the cord.
17. Basically, the machine should be disconnected from the electricity supply when not in use.
18. If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or sim-
ilarly qualied persons in order to avoid a hazard.
19. (Except USA/Canada) This machine is provided with double insulation.
Use only identical replacement parts. See instructions for servicing Double-Insulated machine.
“SERVICING DOUBLE-INSULATED PRODUCTS
(Except USA / Canada)”
In a double-insulated product, two systems of insulation are provided instead of grounding. No
grounding means is provided on a double-insulated product nor should a means for grounding be
added to the product. Servicing a double-insulated product requires extreme care and knowledge
of the system and should only be done by qualied service personnel. Replacement parts for a
double-insulated product must be identical to those parts in the product. A double-insulated product
is marked with the words DOUBLE INSULATION or DOUBLE INSULATED.
The symbol may also be marked on the product.
1

Danger
warning
which is not
specied
There is a
risk of elec-
trical shock
There is a
risk of re
There is a
risk of inju-
ry to hands,
etc.
Prohibit-
ed matter
which is not
specied
Disassem-
bly/alteration
is prohibited
Do not
place n-
gers under
the needle
Do not pour
oil, etc.
Generally
required
behavior
Disconnect
the power
plug
Congratulations on your purchase of a JUKI sewing machine.
Please be sure to read safety precautions in “To use the sewing machine safely” in the Instruction
Manual before use to fully understand the functions and operating procedures of the sewing ma-
chine so as to use the sewing machine for a long time.
After you have read the Instruction Manual, please be sure to keep it together with the warranty so
that you can read it whenever necessary.
The warranty does not apply to any failures under conditions other than normal state use (failures
that occur in the case the sewing machine is used without following the Instruction Manual or pre-
cautions given on the labels attached to the main body), and consumable parts (such as needles
and knives). For warranty information, check the contents of the separate warranty.
To use the sewing machine safely
Marks and pictographs included in the Instruction Manual and shown on the sewing machine are
used so as to ensure safe operation of the sewing machine and to prevent possible risk of injury to
the user and other people.
Warning marks are used for di󰀨erent purposes as described below.
WARNING Indicates that there is a possible risk of death or serious injury if this
mark is ignored and the sewing machine is used in a wrong manner.
CAUTION Indicates the operation, etc. which can cause a possible risk of person-
al injury and/or physical damage if this mark is ignored and the sewing
machine is used in a wrong manner.
Pictographs mean the following:
“SAVE THESE INSTRUCTIONS”
“This overlock sewing machine is intended for household use only.”
2

● Do not wipe the sewing machine with solvent
such as thinner.
When the sewing
machine is soiled, put
a small quantity of
neutral detergent on a
piece of soft cloth and
carefully wipe o󰀨 the
sewing machine with it.
● Be sure to use the sewing machine in the
temperature range from 5ºC to 40ºC.
If the temperature is excessively low, the
machine can fail to operate normally.
WARNING
For the combination of the material and the thread and needle, in particular, refer to the explanation
table in “Replacement of the needle”.
If the needle or thread does not match the material used such as in the case that an extra heavy-
weight material (e.g., denim) is sewn with a thin needle (#11 or higher), the needle can break re-
sulting in an unexpected personal injury.
Other precautions
● Do not put the sewing machine under the
direct sunlight or in a humid place.
Be aware that the following state can take place since the sewing machine incorporates semi-con-
ductor electronic parts and precise electronic circuits.
* The operating temperature of the sewing machine is between 5ºC and 40ºC. Do not use the sew-
ing machine under the direct sunlight, near the burning things such as a stove and candle, or in a
humid place. By so doing, the temperature in the interior portion of the sewing machine can rise or
the coating of the power cord can melt, causing re or electrical shock.
Please scan the QR code with your movile phone/tablet to access the operation
support video or visit our video site.
https://www.youtube.com/playlist?list=PLY0cKTfgy6QyzRxeIR4qTQ6xs0VGid9Hg
3

4
Safety regulations ................................1-3
Contents...................................................4
Details of the machine .........................5,6
• Accessories ................................................. 6
• Waste collector ............................................ 6
Operation buttons on the LCD screen...7
Editing and setting ...............................8,9
Preparing the machine / Using the ma-
chine............................................... 10,11
• Thread stand.............................................. 10
• Thread, cones, spools .............................. 10
• Attaching the foot control..........................11
Using the machine............................12-15
• Main Power/ light switch........................... 12
• Looper cover.............................................. 12
• Handwheel ................................................. 13
• Two step presser foot lifter with
integrated front foot lift .......................... 13
• How to use the knee lifting lever ............. 13
• Changing the presser foot........................ 14
• How to use the presser foot ..................... 14
• Upper knife is deactivated........................ 15
• Inserting the needles ................................ 15
Needle and thread .................................16
Adjustments and settings................17-22
• Stitch length............................................... 17
• Cutting width.............................................. 17
• Adjusting the stitch width nely .............. 18
• Di󰀨erential feed ......................................... 19
• Gathering ................................................... 20
• Roll hemming............................................. 20
• Presser foot pressure ............................... 21
• Setting the height of the presser foot with
the micro-lifter dial.................................. 21
• Automatic chain-o󰀨 thread cutting.......... 22
Contents
Threading preparations / Tips..............23
Stitch chart.............................................24
Threading 4/3 Thread OL .................25-31
• Lower looper......................................... 25,26
• Upper looper ......................................... 27,28
• Right needle............................................... 29
• Left needle ................................................. 30
• How to use the looper threader ............... 31
Trial sewing ............................................32
Practical Sewing - Overlock ............33-39
• 2-needle, 4-thread overlocking ................ 33
• 1-needle 3-thread overlocking ................. 34
• 1-needle 2-thread overlocking ................. 35
•
Rolled hemming and narrow overlocking .. 36
• Sewing in tape ........................................... 37
• Thread breakage during sewing .............. 37
• Unpicking seams....................................... 37
• Securing thread ends at the beginning
and end of sewing.............................. 38,39
Maintenance......................................40,41
• Cleaning and lubricating .......................... 40
• Replacing the knife ................................... 41
Error display ..........................................42
Trouble shooting guide....................43,44
Technical data........................................45
Optional Accessories............................46

5
LCD screen
Operation buttons
Chain-o󰀨 thread cutting button
Cloth plate
Details of the machine
 View with looper cover open
CAUTION Be sure to turn o󰀨 the power switch be-
fore opening the looper cover.
Thread cutter
Presser foot
lifter
Stitch plate
Needle clamp
Upper knife
Presser foot
Automatic needle threader
Thread guide support
Retractable support rod
Thread take-up cover
Open thread guide
Foam pad
Main Power/Light switch
Thread stand
Spool holder pin
Anti - vibration cone
Stitch length adjustment dial
Di󰀨erential feed adjustment dial
Side cover
Handwheel
Inlet of electric power cord
Looper cover with built in knife guard
Looper cover opening indent
Top cover
Knee lifting lever hole
Magnet needle tray
Micro-lifter dial
Threading hole
Upper knife
changeover knob Lower knife
Upper looper
Lower looper
Upper knife
xing screw
Cutting width adjusting dial
Air-control
switch
Threading change-
over lever
Selection lever for
overlocking or roll
hemming
Thread guide No. 1
Presser foot pressure regulating knob
Stitch changeover knob
Inlet of the controller
Looper thread tension ne
adjustment knob
Chain-o󰀨
thread cutter

6
Details of the machine
Accessories
Brush/needle inserter Tweezers
Electronic foot control
(Model No.: JC-001)
Dust cover
Accessory bag
Needle set
HA×1 No.80(No.12)×3
No.90(No.14)×2
Waste collector
Spool caps
Looper threader
・Instruction manual
(This manual)
Curve foot
Wool needle
Knee lifter lever
Screwdriver
T-shape
screwdriver
Oil
Waste collector
Insert the waste collector into the hole in the lower part of the looper
cover.
It catches the cut-o󰀨 fabric as you sew, keeping your working area
neat and tidy.
Thread guide
support
Retractable
support rod
Power cord

7
Operation buttons on the LCD screen
Button name Function
󰿿Chain-o󰀨 thread cutting
button
Use this button to manually cut the chain-o󰀨 thread.
* Chain-o󰀨 thread is stitch-formed thread with no material.
󱀀
Edit button Displays the data edit screen.
With this button, the "maximum sewing speed", "automatic chain-o󰀨 thread cutting length",
"hand LED illumination", "hand LED color temperature", "LCD contrast", "Machine operation
when operating the foot switch" and "display language" can be edited.
󱀁
Stitch display button Displays the stitch display screen.
Four di󰀨erent types of stitches are available: "A: 2-needle 4-thread", "B: 1-needle
3-thread", "C: Narrow overlocking" and "D: Rolled hemming".
󱀂
Automatic chain-o󰀨 thread
cutting changeover button
Changes over ON/OFF of the automatic chain-o󰀨 thread cutting.
When this button is placed in ON, the material end is detected at the end of sewing and
chain-o󰀨 thread is automatically cut to the set length.
󱀃Enter button Conrms the content you have edited.
󱀄Left button Moves the selection bar on the LCD screen to the left.
󱀅Right button Moves the selection bar on the LCD screen to the right.
* The buttons are disabled while the sewing machine is in operation.
LCD screen display Display contents
󰴤///
Displays the stitch. Change over the stitch with the stitch changeover
knob.
󰴥Displays the stitch length. Adjust the stitch length by turning the stitch adjust-
ment dial .
󰴦Displays the di󰀨erential feed ratio. Adjust the di󰀨erential feed amount by turning the
di󰀨erential feed adjustment dial.
󰿿LCD screen 󱀃󱀂󱀁󱀀
󱀄 󱀅
Stitch changeover
Stitch length adjustment
Di󰀨erential feed adjustment
Stitch
changeover
knob
Stitch length
adjustment
dial
Di󰀨erential
feed adjust-
ment dial

8
󱤨 󱤫 󱤳 󱤴 󱤵 󱤶
󱤸
󱤷
Display contents
󱤨Maximum sewing speed
󱤩
Material detection sensor
ON (With a material)
OFF (Without a material)
(This parameter is displayed only
when the automatic chain-o󰀨 thread
cutting function is enabled.)
󱤪
Height of the presser foot by the
micro-lifter
(This parameter is displayed only
when the presser foot is in its upper
position.)
Editing and setting
Welcome screen
Press the chain-o󰀨 thread cutting button.
Sewing screen (parameter display) is displayed.
After a lapse of four seconds
■ LCD screen display
Selection screen
Editing screen
Display contents
󱤫Automatic chain-o󰀨 thread cut-
ting length
󱤬Stitch symbol
󱤭Stitch name
󱤮Stitch length
󱤯Di󰀨erential feed ratio
󱤰Number and positions of the
needles to be set
󱤱Position of the overlocking width
changeover knob
Display contents
󱤲Recommended value of stitch
width
󱤳Hand LED illumination
󱤴Hand LED color temperature
󱤵LCD contrast
󱤶Machine operation carried out
by depressing the foot switch
󱤷Display language
󱤸Selection bar
󱤹Set value
󱤹
1. At the startup of the sewing machine
Example) Maximum
sewing speed
(or after a lapse
of ve seconds)
󱤨
󱤫
Sewing screen (Stitch display)
󱤭󱤬
󱤰 󱤱 󱤲
󱤮
󱤯
󱤪󱤩
Sewing screen (parameter display)
CAUTION Be aware that the chain-o󰀨
thread cutter will move.

9
2. How to select the stitch
Change over the stitch to be sewn by turning the stitch changeover knob.
Data editing screen
Data selection screen
3. Items that can be set and setting method
The maximum sewing speed can be changed.
1: Slow → 10: Fast
The automatic chain-o󰀨 thread cutting length can be set.
1: 1cm → 10: 10cm
* The chain-o󰀨 thread cutting length is a rough guide. It
varies depending on sewing conditions such as the type
of thread and stitch length.
The illumination of the hand LED can be changed.
0: Dark → 10: Bright
The color temperature of the hand LED can be
changed.
0: Low (cold color system) → 10: High (warm color
system)
The contrast of the LCD can be changed.
1: High → 10: Low
It is possible to change the machine operation to be
carried out by depressing the foot switch.
: Half stitch/low-speed inching stitch
: Chain-o󰀨 thread cutting
The display language of the LCD can be changed.
Japanese, English, Spanish, German, French, Italian,
Dutch, Danish, Norwegian, Finnish, Swedish, Czech, Rus-
sian and Chinese
* Use the right needle.
* If you want to sew the
"1-needle 2-thread"
stitch, select "B".
◆Thread tension
This product has adopted the feeder type automatic thread tension controller.
Since this automatic thread tension controller supplies the required amount of
thread according to the stitch, material thickness, stitch length and knife width
you have selected, it is not necessary to adjust the thread tension.
* Select "A" when you want to
sew a 1-needle, 3-thread pat-
tern using the left needle. Stitch
changeover
knob
Stitch length
adjustment
dial
Di󰀨erential
feed adjust-
ment dial
Stitch length adjustment
Di󰀨erential feed adjustment
Stitch changeover
Selection bar
The selection bar blinks below
the item you have selected.
Press these buttons to select
or edit the item.
Press this button to
conrm the selection
or editing you have
carried out.
Press
After you have completed editing, press and to return the screen to the sewing screen.

10
Preparing the machine / Using the machine
Thread stand
1. Insert retractable support rod (A) into thread guide support (B).
2. Draw out retractable support rod (A) to put it into the positioning
stopper until it clicks. Then, install open thread guide (C) so that it
is positioned directly above spool holder pin (D).
Positioning stopper
Thread / cones / spools
The anti-vibration cone should be
used with the wider edge at the
bottom on the spool holder pin
when sewing with cones.
Large spools
If large industrial spools are
used, position the anti-vibration
cone upside down on the spool
holder pin, i .e. with the wider
edge at the top.
Household spools
Remove the anti-vibration cones.
Place spools on spool holder
pins and push the spool caps
on with the rounded side down-
wards.
B
A
AC
D
Turn the arrow toward you.

11
Preparing the machine / Using the machine
Attaching the foot control
1. Insert the power cord plug into the machine socket.
2. Insert the controller plug into the controller plug-in port.
3. Insert the power cord plug into the indoor electrical outlet.
The foot control regulates the sewing speed. The sewing
speed can be adjusted by increasing or decreasing the pres-
sure on the foot control.
“WARNING’’
This appliance has a polarized plug (one blade wider than
the other).
To reduce the risk of electric shock, this plug is intended to t
in a polarized main socket only one way.
If the plug does not t fully in the polarized main socket,
reverse the plug. If it still does not t, contact a qualied
electrician to install the proper polarized main socket. Do not
modify the plug in any way. (for USA, Canada only)
CAUTION:
Turn OFF the power switch before plugging or
unplugging.
2
13
A
• Half stitch
It is possible to sew half stitches by lightly depressing
the foot switch (A).
• Low-speed inching stitch
Press and hold down foot switch (A) to carry out sew-
ing at a low speed.
■ Setting the foot switch
In the initial setting, the foot switch has been set to "half
stitch/low-speed inching stitch".
It is possible to select "chain-o󰀨 thread cutting" by chang-
ing the setting. (Refer to page 9)
: Half stitch/low-speed inching stitch
: Chain-o󰀨 thread cutting
It is possible to cut chain-o󰀨 thread by depressing the
foot switch (A).

12
Preparing the machine / Using the machine
Looper cover
To open, press to the right with your thumb in the indent pro-
vided and tilt the cover towards you. To close push it up and
press lightly to the right. The cover engages automatically.
Safety device: The sewing machine is equipped with a
safety device in order to prevent malfunction. In any of the
following cases, the safety device works to prevent the sew-
ing machine from running.
* When the looper cover is opened
* When the cloth plate is opened
* When the presser foot is raised
Main Power/light switch
The main power/light switch is conveniently placed on the
handwheel side of the machine in front of the socket.
I = On with light
O = O󰀨
CAUTION:
Perform these following steps when you are not using
your sewing machine.
1. Be sure to turn OFF the power switch.
2. Be sure to remove the power plug from the wall outlet.
3. Do not place a thing on the foot controller.

13
Using the machine
Handwheel
The handwheel turns forward, i.e. in the same direction as on
a household sewing machine.
Two step presser foot lifter with integrated front
foot lift
To raise the presser foot, lift the presser foot lever on the rear
of the machine, until it engages (A). It can be raised again to
the maximum height and held in this position to provide more
space between presser foot and stitch plate (B).
When the foot is raised (Aand B), the front of the foot is au-
tomatically lifted.
Note: When the presser foot is raised, all the tensions are
released making it easier to thread the machine.
* The needle is brought to its upper end by aligning the
“” marking on the side of the front cover with the “ ”
marking on the handwheel.
B
A
How to use the knee lifting lever
You can lift/lower the presser foot without taking your hands
o󰀨 the material.
1. Insert the protruding part of the knee lifting lever into the
recessed part of the mounting hole.
2. Press the knee lifting lever to the right to lift the presser
foot, or to the left to lower it.
* Do not touch the knee lifting lever during sewing. If you
touch it, the presser foot will go up to cause a deformation
of the seam.

14
Changing the presser foot
CAUTION When you want to change the presser foot, turn
OFF the power switch and lower the upper knife.
• Raise the presser foot.
• Turn handwheel towards you until needles are fully raised. Match the
matching up marks on handwheel and side cover.
Press the catch (C) to release the presser foot from the clamp. Raise the
presser foot shank to the highest position (B) and remove the presser foot
to the left. To attach the presser foot, place it under the shaft. The groove
in the shaft should line up exactly with the presser foot pin (D). Lower the
presser foot lifting lever and check that the groove in the shank should line
up exactly with the presser foot pin (D). If it is not lined up, press the catch (C)
to line up.
Using the machine
How to use the presser foot
Use the marker on the presser foot as a guide when placing the material
under the presser foot.
(F) Left needle position
(G) Right needle position
(H) Knife position (when the cutting width adjusting dial is set at scale mark
“3.0”)
The knife position represents the position at which the material is cut.
・
Curve foot
The curve foot is able to make small turns since it is smaller than the stan-
dard presser foot. It is useful for sewing small curves.
D
C
8.5mm
10mm
F
G
H

15
Magnet needle tray
Conrmation hole
Using the machine
To carry out sewing without cutting the material
(the upper knife is deactivated)
CAUTION Switch the machine o󰀨 (Power switch to “0”)
1. Lower the upper knife changeover knob in the direction of the arrow.
2. Check to be sure that the knife is lowered.
Caution:
To use the upper knife, place the upper knife changeover knob to the E
position and turn the handwheel by hand about two turns to lift the upper
knife.
Inserting the needles
CAUTION Switch the machine o󰀨 (Power switch to “0”)
Needles can be inserted quickly and easily with the practical needle insert-
er.
- Disconnect machine from electricity supply.
Turn handwheel towards you until needles are fully raised. Match the
matching up marks on handwheel and side cover.
Lower the presser foot.
Using the screwdriver, loosen the needle setscrews and remove the nee-
dles.
Place the right-hand needle, at side towards the back, into the hole of
the needle inserter and insert the needle as far as possible into the needle
clamp. Tighten the setscrew lightly and then insert the left-hand needle in
the same way and tighten both setscrews.
* You can check that the needle is fully inserted into the hole of the nee-
dle inserter through the conrmation hole.
* Be aware that the sheet metal inside the needle clamp may be bent if
you tighten the screw excessively. Take care not to excessively tighten
the screw.
・
Magnet needle tray
You can place the needle you have changed on this tray.
E

16
Needle and thread
Needles
Needles must be in perfect condition. Problems can occur if nee-
dles:
Aare bent.
Bare damaged or blunt.
Chave hooked points.
Needle and thread
The needle size used depends on the thread. The needles should be in accordance with thread used.
When sewing, the thread is fed through the long groove in the needle. If the needle is too ne, the thread does not t
into the groove and stitches will be skipped.
Use needles No. 70 - 90.
* It is recommended to use JLx2 needle, especially when sewing thick materials, overlapped section, etc, with overlock
machine.
Thread/decorative threads
Sewing and special overlock threads are manufactured in a wide variety of types, weights and combination of bres. It
is worth investing in good quality threads for perfect sewing results. Decorative threads specially made for overlockers
(available on cones) are also becoming widely available. We recommend following the basic guidelines when using
special threads on your overlocker:
- Purchase threads on cones or spools which are produced exclusively for overlocking.
- When using normal spools, use the spool caps (in accessory bag).
- Only use decorative threads in the loopers. The thread must move easily and without resistance through the thread
guides and looper eyes.
- The thicker the thread, the longer the stitch length (3-4).
- The thicker the thread, the looser the tensions.
- Sew slowly when using decorative threads. Pull the thread chain gently to the rear when starting to sew.
Always test sew decorative threads before starting to sew your work.
A
BC
Thread, needle, application table
Thread Needles Where Application
All purpose overlock thread 120/2 (polyester) 70-90 Needles and looper
threads For all overlock.
Polyester-continuous laments Loopers only Neatening edges
Woolly nylon Loopers only Soft seams in knits, rolled hems.
Spun Polyester 80-90 Needles, and looper
threads Seams in all fabrics.
Embroidery/darning and decorative threads 70-90 Loopers only Neatening edges, rolled hems.

17
Fabric
Upper knife
Lower knife
Right
needle and
cloth cutting
width (mm)
Left needle
and cloth
cutting
width (mm)
Scale marks on the cutting width
adjusting dial
Adjustments and settings
Stitch length
It can be adjusted while sewing.
The stitch length is innitely variable from 0.7 to 4 mm.
Most overlock work is done with a basic setting of 2.5
mm.
For roll hemming or narrow overlocking, it is best to set
the dial at “0.7 to 1.5”.
For blind stitch which requires the “use of separate-
ly-available presser foot”, set the dial at “4”.
Cutting width
CAUTION Switch the machine o󰀨 (Power
switch to “0”)
Set the seam width by turning the cut width adjustment
dial.
• Raise the upper knife.
• Turn cutting width adjustment dial in the desired direc-
tion.
• Lower upper knife.
The position of the lower knife determines the width of the
seam.
WARNING
Do not carry out sewing with a marking pin
stuck in the material. In addition, do not
attempt to cut anything other than fabric and
thread with the upper/lower knives. Be aware
that doing so can cause needle break or per-
sonal injury.
Left needle Right needle
To decrease
stitch length
To increase
stitch length

18
Adjustments and settings
AIf the looper thread tension is too low
→ Turn the knob clockwise.
WARNING
Do not carry out sewing with a marking pin
stuck in the material. In addition, do not
attempt to cut anything other than fabric and
thread with the upper/lower knives. Be aware
that doing so can cause needle break or per-
sonal injury.
Adjusting the stitch width nely
This sewing machine automatically controls the thread
tension. It should be remembered, however, that in some
cases the stitch formation can be improved by turning
the looper thread tension ne adjustment knob clockwise
or counterclockwise according to the type of material or
thread and the di󰀨erential feed adjustment amount.
BIf the looper thread tension is too high
→ Turn the knob counterclockwise.
A
B

19
Adjustments and settings
2
1.5
N(1)
0.7
E
F
Di󰀨erential feed
There are two feed dogs one front (C) and one rear (D).
The two feed dogs move independently and the distance
each feed dog travels during one complete movement can
be adjusted. The di󰀨erential feed prevents uting or wav-
ing in knitted or stretch fabrics and movements between
the layers of fabric. It also ensures pucker-free seams in
smooth fabric such as nylon or closely woven fabric.
Adjusting the di󰀨erential feed
Simply turn the dial in the direction desired for fully variable adjustment
while sewing. Test sew.
G H
JI
E󰀨ect Fabric
2Wave-free seams (G) Thick wool knits, hand knitted articles, very
stretchy fabrics
1.5 Wave-free seams (H) Cotton, silk, synthetic jersey, sweatshirt fabrics
and ne knits
N Normal feed (I) Woven fabrics
0.7 No puckering (J) Fine nylon jersey, closely woven fabrics, lining
fabric satin, poplin
DC
To increase
di󰀨erential feed
amount
To decrease
di󰀨erential feed
amount
Perfectly at seams in knits or stretch fabrics.
The distance travelled by the front feed dog should be greater than that of
the rear feed dog. The front feed dog, therefore, feeds an amount of fabric
which the rear feed dog can take up behind the needle without stretching
the fabric. (E)
Pucker - free seams in nylon or closely woven fabrics.
The distance travelled by the rear feed dog should be greater than that of
the front feed dog. The front feed dog, therefore, holds the fabric back so
that the rear feed dog can take it up behind the needle without any pucker-
ing. (F)
Adjusting the di󰀨erential feed
The di󰀨erential feed can be adjusted by simply turning the di󰀨erential feed
adjustment dial in the direction desired. Always make a trial run. The di󰀨erential
feed is innitely variable and can be adjusted while sewing.
*The thread tension may vary depending on the di󰀨erential feed adjustment
amount. In such a case, adjust the thread tension with the looper thread ten-
sion ne adjustment knob. (Refer to page 18).