JUKI DDL-8700A-7 User manual

ENGLISH
DDL-8700A-7
CAUTIONS FOR SAFETY

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For the sewing machine, automatic machine and ancillary devices (hereinafter collectively referred to as
"machine"), it is inevitable to conduct sewing work near moving parts of the machine. This means that there
is always a possibility of unintentionally coming in contact with the moving parts. Operators who actually
operate the machine and maintenance personnel who are involved in maintenance and repair of the
machine are strongly recommended to carefully read to fully understand the following Safety precautions
before using/maintaining the machine. The content of the Safety precautions includes items which are not
contained in the specications of your product.
The risk indications are classied into the following three different categories to help understand the meaning
of the labels. Be sure to fully understand the following description and strictly observe the instructions.
TO ENSURE SAFE USE OF YOUR SEWING MACHINE
(

) Explanation of risk levels
(
!
) Explanation of pictorial warning indications and warning labels
Warning label



 • There is the possibility that slight to serious injury or death may be caused.
• There is the possibility that injury may be caused by touching moving part.
• To perform sewing work with safety guard.
• To perform sewing work with safety cover.
• To perform sewing work with safety protection device.
 • Be sure to turn the power OFF before carrying out "machine-head threading,"
"needle changing," "bobbin changing" or "oiling and cleaning.



Electrical-shock
danger label
DANGER :
This indication is given where there is an immediate danger of death or serous injury if the person in charge or any third
party mishandles the machine or does not avoid the dangerous situation when operating or maintaining the machine.
WARNING :
This indication is given where there is a potentiality for death or serious injury if the person in charge or any third
party mishandles the machine or does not avoid the dangerous situation when operating or maintaining the machine.
CAUTION :
This indication is given where there is a danger of medium to minor injury if the person in charge or any third party
mishandles the machine or does not avoid the dangerous situation when operating or maintaining the machine.
Items requiring special attention
Pictorial warning indication
There is a risk of injury if
contacting a moving section.
Pictorial warning
indication
Be aware that holding the
sewing machine during
operation can hurt your hands.
There is a risk of electrical shock
if contacting a high-voltage
section.
There is a risk of entanglement
in the belt resulting in injury.
There is a risk of a burn if
contacting a high-temperature
section.
There is a risk of injury if you
touch the button carrier.
Be aware that eye deciency can
be caused by looking directly at
the laser beam.
Indication label
The correct direction is
indicated.
There is a risk of contact between
your head and the sewing
machine.
Connection of a earth cable is
indicated.

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Turning the power off: Turning the power switch off, then removing the power plug from the outlet. This
applies to the following.
SAFETY PRECAUTIONS
1. When it is necessary to open the control box containing electrical parts, be sure to turn the power off and
wait for ve minutes or more before opening the cover in order to prevent accident leading to electrical
shock.
CAUTION
Basic precaution
1. Be sure to read the instruction manual and other explanatory documents supplied with accessories of
the machine before using the machine. Carefully keep the instruction manual and the explanatory docu-
ments at hand for quick reference.
2. The content of this section includes items which are not contained in the specications of your product.
3. Be sure to wear safety goggles to protect against accident caused by needle breakage.
4. Those who use a heart pacer have to use the machine after consultation with a medical specialist.
Safety devices and warning labels
1. Be sure to operate the machine after verifying that safety device(s) is correctly installed in place and
works normally in order to prevent accident caused by lack of the device(s).
2. If any of the safety devices is removed, be sure to replace it and verify that it works normally in order to
prevent accident that can result in personal injury or death.
3. Be sure to keep the warning labels adhered on the machine clearly visible in order to prevent accident
that can result in personal injury or death. If any of the labels has stained or come unstuck, be sure to
change it with a new one.
Application and modication
1. Never use the machine for any application other than its intended one and in any manner other than that
prescribed in the instruction manual in order to prevent accident that can result in personal injury or death.
JUKI assumes no responsibility for damages or personal injury or death resulting from the use of the
machine for any application other than the intended one.
2.
Never modify and alter the machine in order to prevent accident that can result in personal injury or death.
JUKI assumes no responsibility for damages or personal injury or death resulting from the machine
which has been modied or altered.
Education and training
1. In order to prevent accident resulting from unfamiliarity with the machine, the machine has to be used
only by the operator who has been trained/educated by the employer with respect to the machine opera-
tion and how to operate the machine with safety to acquire adequate knowledge and operation skill. To
ensure the above, the employer has to establish an education/training plan for the operators and edu-
cate/train them beforehand.
Items for which the power to the machine has to be turned off
Accident means "to cause
personal injury or death or
damage to property."
1. Be sure to immediately turn the power off if any abnormality or failure is found or in the case of power
failure in order to protect against accident that can result in personal injury or death.
2. To protect against accident resulting from abrupt start of the machine, be sure to carry out the follow-
ing operations after turning the power off. For the machine incorporating a clutch motor, in particular,
be sure to carry out the following operations after turning the power off and verifying that the machine
stops completely.
2-1. For example, threading the parts such as the needle, looper, spreader etc. which have to be
threaded, or changing the bobbin.
2-2. For example, changing or adjusting all component parts of the machine.
2-3. For example, when inspecting, repairing or cleaning the machine or leaving the machine.
3. Be sure to remove the power plug by holding the plug section instead of the cord section in order to pre-
vent electrical-shock, earth-leakage or re accident.
4. Be sure to turn the power off whenever the machine is left unattended between works.
5. Be sure to turn the power off in the case of power failure in order to prevent accident resulting of break-
age of electrical components.
DANGER
PRECAUTIONS TO BE TAKEN IN VARIOUS OPERATION STAGES
Transportation
1. Be sure to lift and move the machine in a safe manner taking the machine weight in consideration. Refer
to the text of the instruction manual for the mass of the machine.

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2. Be sure to take sufcient safety measures to prevent falling or dropping before lifting or moving the
machine in order to protect against accident that can result in personal injury or death.
3. Once the machine has been unpacked, never re-pack it for transportation to protect the machine against
breakage resulting from unexpected accident or dropping.
Unpacking
1. Be sure to unpack the machine in the prescribed order in order to prevent accident that can result in
personal injury or death. In the case the machine is crated, in particular, be sure to carefully check nails.
The nails have to be removed.
2. Be sure to check the machine for the position of its center of gravity and take it out from the package
carefully in order to prevent accident that can result in personal injury or death.
Installation
()Table and table stand
1. Be sure to use JUKI genuine table and table stand in order to prevent accident that can result in per-
sonal injury or death. If it is inevitable to use a table and table stand which are not JUKI genuine ones,
select the table and table stand which are able to support the machine weight and reaction force during
operation.
2. If casters are tted to the table stand, be sure to use the casters with a locking mechanism and lock
them to secure the machine during the operation, maintenance, inspection and repair in order to prevent
accident that can result in personal injury or death.
(!)Cable and wiring
1. Be sure to prevent an extra force from being applied to the cable during the use in order to prevent
electrical-shock, earth-leakage or re accident. In addition, if it is necessary to cable near the operating
section such as the V-belt, be sure to provide a space of 30 mm or more between the operating section
and the cable.
2. Be sure to avoid starburst connection in order to prevent electrical-shock, earth-leakage or re accident.
3. Be sure to securely connect the connectors in order to prevent electrical-shock, earth-leakage or re ac-
cident. In addition, be sure to remove the connector while holding its connector section.
()Grounding
1. Be sure to have an electrical expert install an appropriate power plug in order to prevent accident
caused by earth-leakage or dielectric strength voltage fault. In addition, be sure to connect the power
plug to the grounded outlet without exceptions.
2. Be sure to ground the earth cable in order to prevent accident caused by earth leakage.
()Motor
1. Be sure to use the specied rated motor (JUKI genuine product) in order to prevent accident caused by
burnout.
2. If a commercially available clutch motor is used with the machine, be sure to select one with an entan-
glement preventive pulley cover in order to protect against being entangled by the V-belt.
Before operation
1. Be sure to make sure that the connectors and cables are free from damage, dropout and looseness be-
fore turning the power on in order to prevent accident resulting in personal injury or death.
2. Never put your hand into the moving sections of the machine in order to prevent accident that can result
in personal injury or death.
In addition, check to be sure that the direction of rotation of the pulley agrees with the arrow shown on pulley.
3. If the table stand with casters is used, be sure to secure the table stand by locking the casters or with
adjusters, if provided, in order to protect against accident caused by abrupt start of the machine.
During operation
1. Be sure not to put your ngers, hair or clothing close to the moving sections such as the handwheel,
hand pulley and motor or place something near those sections while the machine is in operation in order
to prevent accident caused by entanglement that can result in personal injury or death.
2. Be sure not to place your ngers near the surround area of the needle or inside the thread take-up lever
cover when turning the power on or while the machine is in operation in order to prevent accident that
can result in personal injury or death.
3. The machine runs at a high speed. Never bring your hands near the moving sections such as looper,
spreader, needle bar, hook and cloth trimming knife during operation in order to protect your hands
against injury. In addition, be sure to turn the power off and check to be sure that the machine complete-
ly stops before changing the thread.
4. Be careful not to allow your ngers or any other parts of your body to be caught between the machine
and table when removing the machine from or replacing it on the table in order to prevent accident that
can result in personal injury or death.
5.
Be sure to turn the power off and check to be sure that the machine and motor completely stop before remov-
ing the belt cover and V-belt in order to prevent accident caused by abrupt start of the machine or motor.
6. If a servomotor is used with the machine, the motor does not produce noise while the machine is at rest.
Be sure not to forget to turn the power off in order to prevent accident caused by abrupt start of the motor.
7. Never use the machine with the cooling opening of the motor power box shielded in order to prevent re
accident by overheat.

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Lubrication
1. Be sure to use JUKI genuine oil and JUKI genuine grease to the parts to be lubricated.
2.
If the oil adheres on your eye or body, be sure to immediately wash it off in order to prevent inammation or irritation.
3. If the oil is swallowed unintentionally, be sure to immediately consult a medical doctor in order to pre-
vent diarrhea or vomiting.
Maintenance
1. In prevention of accident caused by unfamiliarity with the machine, repair and adjustment has to be
carried out by a service technician who is thoroughly familiar with the machine within the scope dened
in the instruction manual. Be sure to use JUKI genuine parts when replacing any of the machine parts.
JUKI assumes no responsibility for any accident caused by improper repair or adjustment or the use of
any part other than JUKI genuine one.
2. In prevention of accident caused by unfamiliarity with the machine or electrical-shock accident, be sure
to ask an electrical technician of your company or JUKI or distributor in your area for repair and mainte-
nance (including wiring) of electrical components.
3. When carrying out repair or maintenance of the machine which uses air-driven parts such as an air cyl-
inder, be sure to remove the air supply pipe to expel air remaining in the machine beforehand, in order to
prevent accident caused by abrupt start of the air-driven parts.
4. Be sure to check that screws and nuts are free from looseness after completion of repair, adjustment
and part replacement.
5. Be sure to periodically clean up the machine during its duration of use. Be sure to turn the power off and
verify that the machine and motor stop completely before cleaning the machine in order to prevent ac-
cident caused by abrupt start of the machine or motor.
6. Be sure to turn the power off and verify that the machine and motor stop completely before carrying out
maintenance, inspection or repair of the machine. (For the machine with a clutch motor, the motor will
keep running for a while by inertia even after turning the power off. So, be careful.)
7. If the machine cannot be normally operated after repair or adjustment, immediately stop operation and
contact JUKI or the distributor in your area for repair in order to prevent accident that can result in per-
sonal injury or death.
8.
If the fuse has blown, be sure to turn the power off and eliminate the cause of blowing of the fuse and re-
place the blown fuse with a new one in order to prevent accident that can result in personal injury or death.
9. Be sure to periodically clean up the air vent of the fan and inspect the area around the wiring in order to
prevent re accident of the motor.
Operating environment
1. Be sure to use the machine under the environment which is not affected by strong noise source (electro-
magnetic waves) such as a high-frequency welder in order to prevent accident caused by malfunction of
the machine.
2. Never operate the machine in any place where the voltage uctuates by more than "rated voltage ±10 %"
in order to prevent accident caused by malfunction of the machine.
3. Be sure to verify that the air-driven device such as an air cylinder operates at the specied air pressure
before using it in order to prevent accident caused by malfunction of the machine.
4.
To use the machine with safety, be sure to use it under the environment which satises the following conditions:
Ambient temperature during operation 5℃ to 35℃
Relative humidity during operation 35 % to 85 %
5.
Dew condensation can occur if bringing the machine suddenly from a cold environment to a warm one. So,
be sure to turn the power on after having waited for a sufcient period of time until there is no sign of wa-
ter droplet in order to prevent accident caused by breakage or malfunction of the electrical components.
6. Be sure to stop operation when lightning ashes for the sake of safety and remove the power plug in
order to prevent accident caused by breakage or malfunction of the electrical components.
7. Depending on the radio wave signal condition, the machine may generate noise in the TV or radio. If this
occurs, use the TV or radio with kept well away from the machine.
8. For the worker who is involved in the work to be done in the environment relevant to "noise value in the
working environment is 85 dB or more and less than 90 dB", be sure to take appropriate measures, as
required, such as the use of ear protection or the like to protect against health hazard. In addition, for the
worker who is involved in the work to be done in the environment relevant to "noise level in the working
environment is 90 dB or more," be sure to instruct him/her to wear ear protection without exceptions in
order to protect against health hazard, and display a sign explaining how to use the ear protection at an
easily viewable location for the worker.
9. Disposal of products and packages and treatment of used lubricating oil should be carried out properly
according to the relevant laws of the country in which the sewing machine is used.

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This model is intended for commercial use.
BEFORE OPERATION “IMPORTANT SAFETY INSTRUCTIONS”
When using the sewing machine, basic safety precautions should always be followed, including the following: Read all
instructions before using
DANGER –To reduce the risk of electric shock:
WARNING –To reduce the risk of bums, re, electric shock, or injury to persons:
1. Do not allow to he used as a toy. Close attention is necessary when this machine is used by or near
children.
2. Use this 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 machine if it is not working properly, if it has been dropped or damaged, or dropped
into water. Return the machine to the nearest authorized dealer or service center for examination, repair,
electrical or mechanical adjustment.
4. Never drop or insert any object Into any opening.
5. Do not use outdoors.
6. Do not operate where aerosol (spray) products are being used or where oxygen is being administered.
7. To disconnect, turn ail controls to the off position, then remove plug form outlet.
8. Never operate the machine unless its oil pan has been lled with oil.
OPERATION PRECAUTIONS “SAVE THESE INSTRUCTIONS”
1. Never operate the machine with any air openings blocked. Keep ventilation openings of the sewing
machine tree from the accumulation of lint, dust, and loose cloth.
2. Keep ngers away from all moving parts. Special care is required aroung the sewing machine needle.
3. Always use the proper needle plate. The wrong plate can cause the needle to break.
4. Do not use bent needles.
5. Do not pull or push fabric while stitching. It may deect the needle causing it to break.
6. Switch the sewing machine off when making any adjustments in the needle area, such as threading
needle, changing needle, threading bobbin, or changing presser foot, and the like.
7. Always disconnect power source from sewing machine when removing covers, Iubricating, or when
making any other user servicing adjustments mentioned in the Instruction manual.
8. Keep your hands away from the needle when you turn the power switch ON or while the machine is
operating.
9. Do not put your ngers into the thread take-up cover while the machine is operating.
10. Be sure to turn the power switch OFF before tilting the machine head or removing the V belt.
11. While the sewing machine is in operation, be careful not to allow your or any other person’s head or
hands to come close to the handwheel, V belt, bobbin winder or motor. Also, do not place anything close
to them. Doing so may be dangerous.
12. If your machine is provided with a belt cover, nger guard or any other protectors, do not operate your
machine with any of them removed.
13. To achieve security, be sure that the power supply earth wire has been connected before operating the
sewing machine.
14. No motor sound is heard when the sewing machine is not operating. So, do not forget to turn the power
OFF at the end of work.
15. When you move the unit from a cold place directly to a warm place, dew condensation may result. Turn
ON the power to the unit after you have conrmed there is no fear of dew condensation.
16. In case of thunder, be sure to stop the unit and remove the power plug from the receptacle for extra
safety.
17. Whenever you connect/remove the power connector or the like, be sure to turn OFF the power switch
beforehand.

DDL-8700A-7 for JA

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Precautions to be taken so as to use the DDL-8700A-7 Series
more safely
1. To avoid electrical shock hazards, neither open the cover of the electrical box for
the motor nor touch the components mounted inside the electrical box while the
power switch is ON.
2. To avoid personal injury, never put your ngers under the needle when you turn ON
the power switch or operate the sewing machine.
3. To avoid personal injury, never put your ngers into the thread take-up cover while
the sewing machine is in operation.
4.
To avoid personal injury, turn OFF the power switch when you tilt the machine head.
5. To prevent possible personal injury caused by being caught in the machine, keep
your ngers, head and clothes away from the handwheel and the thread take-up
while the sewing machine is in operation. In addition, place nothing around it.
6.
To avoid personal injury, never operate the sewing machine with the nger guard removed.
7. To avoid personal injury, be careful not to allow your ngers in the machine when
tilting the machine head.
1. So as to avoid personal injuries, never operate the machine with the safety devices
such as the belt cover and the eye-guard cover removed.
2. So as to avoid personal injuries caused by being caught in the machine, during
operation, be careful not to allow your or any other person’s head, hands or clothes
to come close to the handwheel, V-belt or motor. Also, do not place anything close
to them.
3. So as to avoid injuries to ngers and hands, be careful not to allow your or any
other person’s ngers to come close to the cloth cutting knife or the needle when
turning ON the power or during operation.
4. So as to avoid injuries to ngers and hands, do not place the ngers inside the eye-
guard cover.
5. So as to avoid personal injuries caused by abrupt start of the machine, turn OFF
the power switch and ascertain that the sewing machine does not run even if the
starting pedal is depressed when removing belt cover, motor pulley or V-belt.
6. So as to avoid personal injuries caused by abrupt start of the machine, turn OFF
the power switch and ascertain that the sewing machine does not run even if
the starting pedal is depressed when performing such works as inspection or
adjustment of the sewing machine, cleaning, threading, replacing the needle, etc.
7. So as to avoid electrical shock hazards, do not operate the machine with the power
supply earth wire removed.
8. So as to avoid electrical shock hazards and accidents caused by damaged
electrical components, be sure to turn OFF the power switch before inserting/
detaching the power plug.
9. So as to avoid personal injuries caused by abrupt start of the machine, turn OFF
the power switch when leaving the sewing machine table.
10. So as to avoid personal injuries caused by abrupt start of the machine, turn OFF
the power switch when the electricity fails.
11. So as to avoid personal injuries caused by being caught in the machine, the motor
pulley should be attached with the pulley cover as well as the catching protection
pin.
12. To change the set value described for the functions (attached with an asterisk (*))
for maintenance listed in the DDL-8700A-7 Function Setting List in the Instruction
Manual, separately purchase the Engineer's Manual and fully understand the
description in it. If the set valve is carelessly changed, it is in danger of causing the
machine to be broken or the performance to be deteriorated. So, be careful.
13. Be careful of handling this product so as not to pour water or oil, shock by
dropping, and the like since this product is a precision instrument.
14. When thunders occurs, stop the work for the safety and disconnect the power plug.
15. When the sewing machine is suddenly moved from a cold place to a warm place,
there is a case where dew condensation may occur. Turn ON the power after there
is no worry of the drop of water.

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CAUTION BEFORE OPERATION
• Clean the sewing machine thoroughly before using it for the rst time.
• Remove all dust collected on the sewing machine during the transportation.
• Conrm that the voltage and phase are correct.
• Conrm that the power plug is properly connected.
• Never use the sewing machine in the state where the voltage type is different from the
designated one.
• The direction of rotation of the sewing machine is counterclockwise as observed from the
handwheel side. Be careful not to rotate it in reverse direction.
• Do not tilt the machine head toward this side since oil leakage or parts breakage occurs.
• A safety switch is installed so that the sewing machine cannot be operated with the machine
head tilted.
• When operating the sewing machine, turn ON the power switch after properly setting the head
on the table.
• Before starting a test run, remove the bobbin case and the needle thread from the machine.
• Operate the handwheel after the sewing machine has totally stopped.
WARNING :
To avoid malfunction and damage of the machine, conrm the following.
16. To prevent res, periodically draw out the power plug from the plug socket and
clean the root of the pins and the space between pins.
17. The hook rotates at a high speed while the machine is in operation. To prevent
possible injury to hands, be sure to keep your hands away from the vicinity of the
hook during operation. In addition, be sure to turn OFF the power to the machine
when replacing the bobbin.
18. The motor does not produce noise while the machine is at rest. To avoid possible
accidents due to abrupt start of the machine, be sure to turn OFF the power to the
machine.
19. When tilting or returning the sewing machine to the home position, hold the upper
side of the machine head with both hands and perform the work quietly so that
ngers or the like are not caught in the machine.
20. Never lower the needle bar when the picker is brought close to the bobbin. The
picker may be damaged by the needle, causing a stitching failure.
21. When the sewing machine is used for the first time after delivery or after an
extended time of disuse, remove rubber plug from the frame cover and apply a few
drops of oil to the needle bar. If the sewing machine is used with no oil added to
the needle bar, the needle bar may be seized due to abrasion of the needle bar or
intrusion of dust.
22. This is a Class A product. In a domestic environment this product may cause radio
interference, in which case the user may be required to make corrective actions.

viii
Safety devices and warning labels
In addition, be aware that the safety devices such as the "eye protection cover" and "finger
guard" are sometimes omitted in the sketches, illustrations and gures included in the Instruc-
tion Manual for the explanation's sake. In the practical use, never remove those safety devices.
CAUTION
Power switch
This is a switch for dis-
connecting the power
unit of the sewing ma-
chine from the power
supply.
Selection of the power
switch (EU type)
Be su r e to us e the
IEC60204-1-compliant
p o w e r s w i t c h w i t h
rated current of 20A or
more and short-circuit
breaking capacity of
120 A or more.
Thread take-up lever
cover
This is a cover for
preventing contact
between the human
body and the thread
take-up lever.
Finger guard
This is a cover for
preventing contact
between fingers
and the needle.
High-voltage
caution label
This label
warns that
there is a high-
voltage part
inside cover.
Pulley cover
This is a cover for pre-
venting entanglement
of hands, hair and
clothes by the hand
pulley.
Warning label
(Refer
to the
warning
label on
page i.)
The label gives
t h e m i n i m u m
precautions to be
taken when oper-
ating the sewing
machine.
Warning label against
pinching
This label warns that
fingers or other parts
of human body can be
pinched in the thread
take-up lever.