JUKI MO-2000QVP User manual

MO-2000QVP
2-Needle, 2/3/4-Thread Overlock Sewing Machine
IMPORTANT:
Read all safety regulations carefully and understand
them before using your sewing machine.
Retain this instruction manual for future reference.
INSTRUCTION MANUAL

1
“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 ma-
chine. 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.
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 off “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 off “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 power cord of this appliance is damaged, it must be replaced with a special cord by your
nearest authorized dealer or service center.
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.
“SAVE THESE INSTRUCTIONS”
“This overlock sewing machine is intended for household use only.”

2
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.
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 different 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:

3
● 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 off 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.

4
Safety regulations ·································· 1-3
Contents··················································4
Details of the machine····························· 5-7
• Accessories·········································· 6
• Thread stand ·········································7
Preparing the machine / Using the machine · 7,8
• Attaching the foot control··························7
• Waste collector ······································8
• Thread, cones, spools ·····························8
Using the machine
• Main Power/ light switch···························9
• Looper cover ·········································9
• Handwheel············································9
• Two step presser foot lifter······················ 10
• Changing the presser foot ······················ 10
• Upper knife is deactivated ······················ 10
• How to use the presser foot ···················· 11
• Inserting needles /
Needles and Threads ······················· 11, 12
Adjustments and settings
• Stitch length ········································ 13
• Cutting width ······································· 13
• Differential feed···································· 14
• Gathering············································ 15
• Roll hemming ······································ 15
• Presser foot pressure ···························· 15
Setting/ Practical sewing
• Preparation/Tips ··································· 16
Threading 4/3 Thread OL
• Lower looper ······································· 17
• Upper looper ······································· 18
• Right needle ········································ 19
• Left needle ·········································· 20
• How to use the looper threader················ 21
Trial sewing············································ 22
Thread tension ······································· 23
Practical Sewing-Overlock
• Sewing in tape ····································· 24
• Carrying out hemming and narrow
overlocking ········································· 24
• Wrapped overlocking with three threads ···· 25
• 2-/3-thread changeover attachment ·········· 25
• Cover stitch with three threads (atlock) ···· 26
• Thread breakage during sewing··············· 26
• Unpicking seams ·································· 26
Securing thread ends at the beginning and
end of sewing ···································· 27, 28
LCD indication ····································29-32
Stitch chart············································· 33
Maintenance
• Cleaning and lubricating························· 34
• Replacing the knife ······························· 34
Trouble shooting guide ························ 35, 36
Technical data ········································ 37
Optional accessories································ 37
Contents

5
Details of the machine
Details of the machine
1. Looper cover with built in knife guard
2. Looper cover opening indent
3. Cloth plate
4. Top cover
5. Thread take-up cover
6. Presser foot pressure regulating knob
7. Left needle thread tension dial
8. Right needle thread tension dial
9. Upper looper thread tension dial
10. Lower looper thread tension dial
11. Retractable support rod
12. Thread guide support
13. Open thread guide
14. Spool holder pin
15. Foam pad
16. Anti - vibration cone
17. Thread stand
18. Stitch length adjustment dial
19. Differential feed adjustment dial
20. Handwheel
21. Front cover
22. Machine socket
23. Main Power/Light switch
24. LCD screen
6
12
11
5
13
15
23
17
14
16
18
19
21
3
20
22
1
2
4
10
89
7
24
Details of the machine
1. Thread cutter
2. Automatic needle threader
3. Presser foot lifter
4. Stitch plate
5. Presser foot
6. Upper knife
7. Needle clamp
1
3
4
7
6
5
2

6
Details of the machine
View with looper cover open
1. Selection lever for overlocking or roll hemming
2. Cutting width adjusting dial
3. Upper looper
4. Lower looper
5. Threading hole
6. Air-control pushbutton
7. Threading changeover lever
8. Upper knife xing screw
9. Lower knife
10. Upper knife changeover knob
Caution:
Be sure to turn off the power
switch before opening the looper
cover.
10
1
9
34
8
2
6
5
7
Accessories
1. Needle set 130/705H (SCHMETZ)
2. Screwdriver
3. Tweezers
4. Brush/needle inserter
5. Electronic foot control
6. Nets
7. Spool caps
8. Looper threader
9. Accessory bag
10. Dust cover
11. Waste collector
12. Oiler
5
4
6
10
23
9
1
11
7
8
12

7
Thread stand
Push the support rod rmly into the socket on the back of the
machine.
Raise the support rod (A) fully, turning slightly until the po-
sition catches engage. Position the thread guide (B) on the
thread stand so that the arrow is to the front.
AB
B
A
Attaching the foot control
Plug foot control into the machine socket (A) and then into
main socket (B). The foot control regulates the sewing speed.
The sewing speed can be adjusted by increasing or decreas-
ing the pressure 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, re-
verse the plug. If it still does not t, contact a qualied electri-
cian to install the proper polarized main socket. Do not modify
the plug in any way. (for USA, Canada only)
Preparing the machine / Using the machine
Details of the machine
Polarized plug
(for USA, Canada only)
Polarized main socket

8
Waste collector
Clip the waste collector into the opening on the looper cover.
It catches the cut-off fabric as you sew, keeping your working
area neat and tidy.
Preparing the machine / Using the machine
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-vibra-
tion 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 downwards.
Thread net
If the threads slip and get
twisted, cover the looper
spools with the net supplied in
the accessory bag.

9
Using the machine
Looper cover
To open, press to the right with your thumb in the indent
provided and tilt the cover towards you. To close push it
up and press lightly to the right. The cover engages auto-
matically.
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 sewing 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.
0 = Off
I = On with light
Handwheel
The handwheel turns forward, i.e. in the same direction as
on a household sewing 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.

10
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 (A and B), the front of the foot is auto-
matically lifted.
Note:
When the presser foot is raised, all the tensions are released
making it easier to thread the machine.
Changing the presser foot
Switch the machine off (power switch”0”) and deac-
tivate 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 cov-
er.
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 press-
er 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.
B
A
D
C
Using the machine
To carry out sewing without cutting the material
(the upper knife is deactivated)
Turn off the power switch before deactivating the
upper knife.
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 activate the upper knife, bring the upper knife changeover
knob at position E. Turn the handwheel by two revolutions by
hand.
E

11
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 lower knife adjusting knob is set
at scale mark “1.5”)
The knife position represents the position at which the
material is cut.
8.5mm
10mm
F
G
H
Inserting the needles
Needles can be inserted quickly and easily with the practical
needle inserter (A).
Switch the machine off (Power switch to “0”)
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 small screwdriver, loosen the needle setscrews and
remove the needles (B).
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 nee-
dle in the same way and tighten both setscrews (C).
A
B
C

12
Needles
Needles must be in perfect condition.
Problems can occur if needles:
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.
Needle and thread
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.

13
Adjustments and settings
Stitch length
It can be adjusted while sewing.
The stitch length is innitely variable from 1-4mm. Most over-
lock work is done with a basic setting of 2.5mm.
For roll hemming or narrow overlocking, it is best to set the
dial at “1 to 1.5”.
For blind stitch which requires the “use of separately-available
presser foot”, set the dial at “4”.
8
A
注意
AB
8
A
注意
Cutting width
Switch the machine off (Power switch to “0”)
Disconnect machine from electricity supply.
• Raise the upper knife.
• Turn cutting width adjustment dial in the desired direction.
• Lower upper knife.
1 = 3–5 mm seam width
2 = 4–6 mm seam width
3 = 5–7 mm seam width
4 = 6–8 mm seam width
5 = 7–9 mm seam width
The position of the lower knife determines the width of the
seam.
Reduce the cutting width if the edges of fine fabric curl up
when being sewn (A).
Increase the cutting width if the loops seem to be too loose (B).
WARNING
Do not carry out sewing with a marking pin stuck in
the material. In addition, do not attempt to cut any-
thing other than fabric and thread with the upper/
lower knives. Be aware that doing so can cause nee-
dle break or personal injury.

14
Adjustments and settings
DC
2
1.5
N(1)
0.7
E
F
Differential 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 differential feed prevents fluting or waving 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.
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 puckering. (F)
Adjusting the differential feed
The differential feed can be adjusted by simply turning the dif-
ferential feed adjustment dial in the direction desired. Always
make a trial run. The differential feed is innitely variable and
can be adjusted while sewing.
Adjusting the differential feed
Simply turn the dial in the direction desired for fully variable
adjustment while sewing. Test sew.
Effect 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
G H
JI

15
Gathering
Using the differential feed, a single layer of fabric can be
gathered before sewing it to the garment.
For example, sleeve heads and lower edges, yokes, lace
edging or frills.
Adjustment:
• Stitch: 4-thread overlock
• Differential feed: 2
• Stitch length: 3-4
• Cutting width: 2-3
Increase the needle thread tension (6-8) for a tighter gather.
Adjustments and settings
Roll hemming
• Turn the handwheel towards you until the needles are fully
raised.
• For roll hemming, pull the overlocking width changeover
knob toward you and check that the overlocking claw re-
tracts. (C).
• For overlocking, push the overlocking width changeover
knob away from you to check that the overlocking claw proj-
ects. (D).
The roll hemmer is fully integrated in the machine. The edge
of the fabric will be automatically rolled over, producing a very
narrow, ne seam or hem.
Roll hemming is ideal for nishing edges on all ne fabrics,
such as evening clothes, lingerie, scarves, frills and also for
curtains and napkins.
D
C
Presser foot pressure
The presser foot pressure is factory adjusted to a medium
setting.
Align the marker line on the presser foot pressure regulating
knob with the upper end of the top cover.
Position of knob for normal pressure
(M) = Medium.
More pressure: for thick or stiff fabrics such as denim, tweed,
rm linen (H) = High.
Less pressure: for light-weight or sheer fabrics and knits (L) =
Low.
M
H
L

16
Threading preparations / Tips
1. Extend the retractable support rod tted with open
thread guide as far as it goes.
2. Raise the presser foot. (Tension disk opens.)
3. Open the looper cover.
4. Turn the power on.
Threading sequence
The thread guides can be threaded in any sequence.
The threading sections are color coded correspondingly.
Threading the thread guide No. 1
Bring down the thread which is put on the retractable support
rod to thread the thread guide No. 1 from its left side. Then,
route the thread downward to bring it toward you.
Lower looper thread (red markings)
Upper looper thread (purple markings)
Right needle thread (green markings)
Left needle thread (beige markings)

17
Lower looper thread, red markings
Place the spool on the spool holder pin as illustrated.
(1) Raise the threading changeover lever in the di-
rection of the arrow.
Turn the handwheel toward you until it clicks.
(2) Thread the thread guide which is located just
above the spool from back to front.
(3) Thread the thread guide No. 1.
(4) Pull the thread by both hands and thread the
thread guide.
(5) Thread the thread guide.
(6) Pull out the thread by 20 to 30 cm to let it sag
inside the looper cover.
(7) Pass the top end of thread through threading
hole by 1 to 2 cm.
(8) Press the air-control pushbutton.
(9) Check to be sure that the thread comes out from
the top end of the lower looper.
(10) Bring the pulled-out thread down from above
the upper looper to route it under the presser
foot and pull it out from its rear.
Note:
If the upper or lower looper thread breaks during
sewing, re-threading is necessary.
Remove both the broken and unbroken looper
threads. Then, set the threading lever to the thread-
ing side to carry out threading of the upper and lower
loopers.
1
2
3
4
5
1
6
7
8
20-30cm
9
10
Threading 4/3 Thread OL

18
Upper looper thread, purple markings
Place the spool on the spool holder pin as illustrated.
(1) Raise the threading changeover lever in the di-
rection of the arrow.
Turn the handwheel toward you until it clicks.
(2) Thread the thread guide which is located just
above the spool from back to front.
(3) Thread the thread guide No. 1.
(4) Pull the thread by both hands and thread the
thread guide.
(5) Thread the thread guide.
(6) Pull out the thread by 20 to 30 cm to let it sag
inside the looper cover.
(7) Pass the top end of thread through threading
hole by 1 to 2 cm.
(8) Press the air-control pushbutton.
(9) Check to be sure that the thread comes out from
the top end of the upper looper.
(10) Pull the thread by approximately 10 cm to route
it under the presser foot and pull it out from its
rear.
Threading 4/3 Thread OL
1
1
2
4
5
6
7
8
9
20-30cm
3
10

19
Right-hand needle, green markings
Switch the machine off (power switch”0”)
Place the spool on the spool holder pin as illustrated.
(1) Thread the thread guide which is located just
above the spool from back to front.
(2) Thread the thread guide No.1.
(3) Route the thread in the groove.
(4) Put the thread under the thread guide plate.
(5) Thread the thread take-up cover (marked in
green)
(6) Thread the thread guide (right-hand side).
(7) Thread the needle bar thread guide (right-hand
side).
(8) Turn the handwheel to align the “ ” marking on
it with the “ ” marking on the side of the front
cover.
(9) Set the right-/left-needle changeover lever to the
right needle side.
Be sure to move the right-/left-needle change-
over lever to the right needle side until it will go
no further.
(10) Lower the threading lever as far as it goes.
(11) Push the thread into section Awith both hands.
(12) The thread automatically passes through the
needle eyelet by pushing the threading lever
upward.
(13) Pull out the thread by approximately 10 cm to
route it under the presser foot and draw it out
from its rear.
Threading 4/3 Thread OL
1
3
4
5
7
7
6
6
12
13
9
8
2
10
11
A