JUKI MO-735N User manual

MO-735N
2-Needle,2/3/4/5-Thread Overlock + Cover Stitch Sewing Machine
IMPORTANT:
Read all safety regulations carefully and under-stand
them before using your sewing machine. Retain this in-
struction manual for future reference.
INSTRUCTION MANUAL
EN

“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.
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.
“SAVE THESE INSTRUCTIONS”
“This overlock sewing machine is intended for household use only.”
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Danger warning
which is not speci-
ed
There is a risk of
electrical shock
There is a risk
of re
There is a risk of
injury to hands,
etc.
Prohibited matter
which is not speci-
ed
Disassembly/
alteration is pro-
hibited
Do not place
ngers 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
machine 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 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 personal injury and/or physical damage if this mark
is ignored and the sewing machine is used in a wrong manner.
Pictographs mean the following:
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● 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 result-
ing 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
sewing 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.
LED light
・
Rated Voltage: 9V
・
Maximum power consumption: 1.3W
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Safety instructions ········································1-3
Contents························································4
Details of the machine···································5-6
• Accessories·················································6
Preparing the machine / Using the machine ·······7-8
• Attaching the foot control································7
• Waste collector ············································7
• Thread stand ···············································8
• Placing the spool holder for the chain thread ······8
• Thread / cones / spools··································9
Using the machine
• Power/light switch·········································9
• Raising the upper knife ··································9
• Two step presser foot lifter with integrated front
foot lift······················································10
• Changing the presser foot ···························· 10
• Looper cover ············································· 11
• Cloth plate ················································ 11
• Handwheel················································ 11
• Inserting the needles ··································· 12
Needle and thread·········································13
Adjustments and settings
• Stitch length ··············································14
• Cutting width ·············································14
• Di󰀨erential feed·········································· 15
• Gathering··················································16
• Upper looper converter ································ 16
• Roll hemming ············································17
Settings, practical sewing
• Presser foot pressure ·································· 17
• Sewing in tape ··········································· 18
• Thread breakage during sewing····················· 18
• Unpicking seams ········································18
Threading preparations / tips ···························19
Stitch chart·············································· 20-21
Threading 4/3 Thread OL
• Upper looper ·············································22
• Lower looper ·············································23
• Right-hand needle ······································24
• Left-hand needle ········································25
Threading, Chain stitch and OL ··················· 26-28
Contents
Trial sewing, thread tension ·····························29
Thread tension ········································ 29-30
Cover/chain stitch functions·····························31
Cover/chain stitch functions and
general operating instructions ····················· 32-33
Threading 4 thread cover stitch
• Threading cover stitch looper ························34
• Cover stitch R needle ·································· 35
• Cover stitch C needle ·································· 36
• Cover stitch L needle··································· 37
Threading 3 thread cover stitch (wide) ···············38
Threading 3 thread cover stitch (narrow) ············39
Threading chain stitch ····································40
Sewing test and tension adjustment ··················41
Tension adjustments ······································42
Practical Sewing-Cover stitch
• Securing the seam end, cover stitch ···············43
• Unpicking seams ········································43
• Stitch plate with seam guide lines ·················· 43
• Simple hem ···············································44
• Flat joining seam ········································ 44
• Edges with elastic······································· 45
• Binding·····················································45
Top stitching seams /ribbing/yokes····················46
Practical Sewing-Chain stitch
• Gathering with chain stitch···························· 46
• Binding·····················································46
Maintenance
• Changing the upper knife ····························· 47
• Changing the lower knife······························ 47
• Cleaning and lubricating······························· 47
Trouble shooting guide ···································48
Technical data ··············································49
Optional Accessories ·····································50
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