JUKI DDL-9000C-S Series Quick start guide

40177390
No. E424-00
ENGINEER’S MANUAL
DDL-9000C Series
(DDL-9000C-F, S Series)
Direct-drive, High-speed, Sewing system
with Automatic Thread Trimmer

PREFACE
This Engineer’s Manual is written for the technical personnel who are responsible for the service and mainte-
nance of the machine.
The Instruction Manual for these machines intended for the maintenance personnel and operators at an
apparel factory contains operating instruction in detail. And this manual describes “Standard Adjustment”,
“Adjustment Procedures”, “Results of Improper Adjustment”, and other important information which are not
covered in the Instruction Manual.
When carrying out the maintenance work on the sewing machine, be sure to refer also to the Instruction
Manual and the Parts List. Further, refer to Engineer’s Manual.
In addition, for the motor for the sewing machine with thread trimmer, refer to the separate Instruction Manual
or This manual gives the “Standard Adjustment” on the former page under which the most basic adjustment
value is described, and on the latter page “Results of Improper Adjustment” under which stitching errors and
troubles arising from mechanical failures and “How to adjust” are described.

i
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 of this
engineer's manual before using/maintaining the machine. The content of the Safety precautions of this
engineer's manual 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 of this engineer's manual and the product. Be sure to fully understand the following description
and strictly observe the instructions.
(I) Explanation of risk levels
(II) Explanation of pictorial warning indications and warning labels
Warning label
❶
❷
❸
❶
• 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.
❷• To perform sewing work with safety guard.
• To perform sewing work with safety cover.
• To perform sewing work with safety protection device.
❸
• Be sure to turn the power OFF before carrying out "machine-head threading,"
"needle changing," "bobbin changing" or "oiling and cleaning.
❸
❷
❶
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 contact-
ing 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 contact-
ing 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 indicat-
ed.
There is a risk of contact between
your head and the sewing ma-
chine.
Connection of a earth cable is
indicated.
TO ENSURE SAFE USE OF YOUR SEWING MACHINE
Adjustment :
It means replacement of parts,
disassembly, and repair assembly.

ii
Basic precaution
1. Be sure to read the engineer's manual and other explanatory documents supplied with accessories of
the machine before using the machine. Carefully keep the engineer's 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.
5. Turn OFF the power before starting the work in order to protect against accident that can result in per-
sonal injury.
If it is inevitable to carry out work with the power ON, utmost care should be taken to prevent from de-
pressing the foot pedal or pressing the start switch by mistake.
6. Make sure, after the completion of replacement work, that neither connectors nor cables are damaged,
slipped off or loosened in order to protect against accident that can result in personal injury.
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 engineer's 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 oper-
ation 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
Turning the power off: Turning the power switch off, then removing the power plug from the outlet. This
applies to the following.
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 thread-
ed, 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.
PRECAUTIONS TO BE TAKEN IN VARIOUS OPERATION STAGES
Accident means "to cause
personal injury or death or
damage to property."
CAUTION
DANGER
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.

iii
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 engineer's manual for the mass of the machine.
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
(I) Table and table stand
1. Be sure to use JUKI genuine table and table stand in order to prevent accident that can result in personal
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.
(II) Cable and wiring
1. Be sure to prevent an extra force from being applied to the cable during the use in order to prevent electri-
cal-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
accident. In addition, be sure to remove the connector while holding its connector section.
(III) 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.
(IV) 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 re-
moving 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.

iv
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amma-
tion 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 car-
ried out by a service technician who is thoroughly familiar with the machine within the scope dened in
the engineer's 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
accident 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
replace 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.
10. In order to prevent accidents resulting in personal injury or death, adjustments have to be carried out
within the instructions described in this Engineer's Manual and in the Instruction Manual by the person-
nel who have been well trained by the employer with respect to the latest knowledge and safety for the
machine.
11. Make sure that water is contained in cylinders and pipes, then remove water from them in order to pre-
vent accidents due to a malfunction of the machine.
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°C to 35°C
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 water droplet in order to prevent accident caused by breakage or malfunction of the electrical compo-
nents.
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. In order to ensure the work environment, local laws and regulations in the country where the sewing
machine is installed shall be followed.
In the case the noise control is necessary, an ear protector or other protective gear should be worn ac-
cording to the applicable laws and regulations.
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.

v
Transportation
1. Be sure to lift this machine with four or more workers and use a carriage for moving it in order to pre-
vent personal injury.
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. Installation is described in the Instruction Manual. Be sure to fully understand the description before
putting the machine into operation.
Replacement of parts
1. In prevention of accident that can result in personal injury, be sure to carry out disassembly/assembly
work within the specied range given in this Engineer's Manual and in the Instruction Manual.
2. Turn OFF the power before starting the work in order to protect against accident that can result in per-
sonal injury.
If it is inevitable to carry out work with the power ON, utmost care should be taken to prevent from de-
pressing the foot pedal or pressing the start switch by mistake.
3. Be sure to carry out replacement work after having installed the machine in a stable state in order to
protect against accident that can result in personal injury.
In addition, be sure to select appropriate tools.
4. In prevention of accident that can result in personal injury, make sure, after the completion of adjust-
ment work, that neither screws nor nuts are loosened or come in contact with other parts.
5. Be sure to use JUKI genuine parts when replacing any of the machine parts.
JUKI assumes no responsibility for any accident caused by any part other than JUKI genuine one.
In addition, in the event you cannot replace parts within the specied range, immediately stop the re-
placement work and ask JUKI or distributor in your area for replacement of the parts.
Adjustment
1. Be sure to adjust according to the instructions given in this Engineer's Manual and in the Instruction
Manual in order to protect against accident that can result in personal injury.
2. Be sure to carry out replacement work after having installed the machine in a stable state in order to
protect against accident that can result in personal injury.
In addition, be sure to select appropriate tools.
3. In prevention of accident that can result in personal injury, make sure, after the completion of adjust-
ment work, that neither screws nor nuts are loosened or come in contact with other parts.
4. Turn OFF the power before starting the work in order to protect against accident that can result in per-
sonal injury.
If it is inevitable to carry out work with the power ON, utmost care should be taken to prevent from de-
pressing the foot pedal or pressing the start switch by mistake.
5. In prevention of accident that can result in personal injury or entanglement accident, be sure to ensure
safety at the time of test run. In addition, be sure to take care not to allow hair or cloths to come in con-
tact with the machine belt.
Disassembly/assembly
1. In prevention of accident that can result in personal injury, be sure to carry out disassembly/assembly
work within the specied range given in this Engineer's Manual and in the Instruction Manual.
2. Be sure to carry out replacement work after having installed the machine in a stable state in order to
protect against accident that can result in personal injury.
In addition, be sure to select appropriate tools.
3. In prevention of accident that can result in personal injury, make sure, after the completion of adjust-
ment work, that neither screws nor nuts are loosened or come in contact with other parts.
4. In prevention of accident that can result in personal injury, be sure to tighten screws and nuts in assem-
bly work with a specied torque, if specied, or with an appropriate torque, if not specied.
After the completion of assembly work, be sure to check that screws and nuts are not loosened before
starting test run.
5. In prevention of accident that can result in personal injury, be sure to check whether the direction of
rotation is correct at the time of test run.
6. In prevention of accident that can result in personal injury or entanglement accident, be sure to ensure
safety at the time of test run. In addition, be sure to take care not to allow hair or cloths to come in con-
tact with the machine belt.
PRECAUTIONS TO BE TAKEN IN VARIOUS OPERATION STAGES
MECHANICAL COMPONENTS
CAUTION

vi
Transportation
1. Be sure to lift this machine with four or more workers and use a carriage for moving it in order to pre-
vent personal injury.
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. Installation is described in the Instruction Manual. Be sure to fully understand the description before
putting the machine into operation.
Replacement of parts
1. 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 replacement of
electrical components.
2. 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 caused by un-
familiarity with the machine or electrical-shock accident. In addition, do not carry out replacement work
with wet hands in order to prevent electrical-shock accident.
3. Be sure to replace parts according to the instructions given in this Engineer's Manual and in the Instruc-
tion Manual in order to protect against accident that can result in personal injury.
4. Be sure to carry out replacement work after having installed the machine in a stable state in order to
protect against accident that can result in personal injury.
In addition, be sure to select appropriate tools.
5. Make sure, after the completion of replacement work, that there is no loose soldering, no contact with
other parts, inadequate contact between connectors and receptacles, and loose screws/nuts in order to
protect against accident that can result in personal injury.
6. Make sure, after the completion of replacement work, that neither connectors nor cables are damaged,
slipped off or loosened in order to protect against accident that can result in personal injury.
It should be remembered that some parts have been factory-insulated with tubes or tapes, or oated
above the PWB for safety's sake. In addition, internal wiring has been factory-routed or -clamped in such
a way that it does not come close to high-voltage parts. Be sure to re-place those parts as they are at the
time of delivery.
7. Be sure to use JUKI genuine parts when replacing any of the machine parts.
JUKI assumes no responsibility for any accident caused by any part other than JUKI genuine one.
In addition, in the event you cannot replace parts within the specied range, immediately stop the re-
placement work and ask JUKI or distributor in your area for replacement of the parts.
8. If the fuse has blown, be sure to turn the power off and eliminate the cause of blowing of the fuse and
replace the blown fuse with a new one in order to prevent accident that can result in personal injury or
death.
Adjustment
1. 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 adjustment of
electrical components.
2. 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 caused by un-
familiarity with the machine or electrical-shock accident. In addition, do not carry out adjustment work
with wet hands in order to prevent electrical-shock accident.
3. In prevention of accident that can result in personal injury, adjust adjustment variable resistor or the like
installed on PWB within the specied range given in this Engineer's Manual and in the Instruction Manu-
al.
4. Be sure to carry out replacement work after having installed the machine in a stable state in order to
protect against accident that can result in personal injury.
In addition, be sure to select appropriate tools.
5. In prevention of accident that can result in personal injury, make sure, after the completion of adjust-
ment work, that neither screws nor nuts are loosened or come in contact with other parts.
6. Make sure, after the completion of replacement work, that neither connectors nor cables are damaged,
slipped off or loosened in order to protect against accident that can result in personal injury.
7. In prevention of accident that can result in personal injury or entanglement accident, be sure to ensure
safety at the time of test run. In addition, be sure to take care not to allow hair or cloths to come in con-
tact with the machine belt.
Disassembly/assembly
1. In prevention of accident that can result in personal injury, be sure to carry out disassembly/assembly
work within the specied range given in this Engineer's Manual and in the Instruction Manual.
PRECAUTIONS TO BE TAKEN IN VARIOUS OPERATION STAGES
ELECTRICAL COMPONENTS
CAUTION

vii
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 disassembly/as-
sembly of electrical components.
3. 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 caused by unfa-
miliarity with the machine or electrical-shock accident. In addition, do not carry out disassembly/assem-
bly work with wet hands in order to prevent electrical-shock accident.
4. Be sure to carry out replacement work after having installed the machine in a stable state in order to
protect against accident that can result in personal injury.
In addition, be sure to select appropriate tools.
5. In prevention of accident that can result in personal injury, be sure to tighten screws and nuts in assem-
bly work with a specied torque, if specied, or with an appropriate torque, if not specied.
After the completion of assembly work, be sure to check that screws and nuts are not loosened before
starting test run.
6. In prevention of accident that can result in personal injury, make sure, after the completion of adjust-
ment work, that neither screws nor nuts are loosened or come in contact with other parts.
7. Make sure, after the completion of replacement work, that neither connectors nor cables are damaged,
slipped off or loosened in order to protect against accident that can result in personal injury.
It should be remembered that some parts have been factory-insulated with tubes or tapes, or oated
above the PWB for safety's sake. In addition, internal wiring has been factory-routed or -clamped in such
a way that it does not come close to high-voltage parts. Be sure to re-place those parts as they are at the
time of delivery.
8. In prevention of accident that can result in personal injury, be sure to check whether the direction of
rotation is correct at the time of test run.
9. In prevention of accident that can result in personal injury or entanglement accident, be sure to ensure
safety at the time of test run. In addition, be sure to take care not to allow hair or cloths to come in con-
tact with the machine belt.

viii
PRECAUTIONS TO BE TAKEN SO AS TO USE THE DDL-9000C
SERIES MORE SAFELY
1. To avoid personal injury, never put your ngers under the needle when you turn ON the
power switch or operate the sewing machine.
2. To avoid personal injury, never put your ngers into the thread take-up cover while the sew-
ing machine is in operation.
3. To avoid personal injury, turn OFF the power switch when you tilt the machine head.
4. To prevent possible personal injury caused by being caught in the machine, keep your n-
gers, 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.
5. To avoid personal injury, never operate the sewing machine with the nger guard removed.
6. To avoid personal injury, be careful not to allow your ngers in the machine when tilting the
machine head.
7. Be sure to mount the machine head support bar on the machine table so that its height
from the table surface becomes 63 to 68 mm. For the sewing machine provided with the
AK device, be sure to mount the support bar on the table so that its height from the table
surface becomes 33 to 38 mm.
1. For the safety, never operate the sewing machine with the ground wire for the power supply
removed.
2. Be sure to turn OFF the power switch in prior when connecting/disconnecting the power
plug.
3. When thunders occurs, stop the work for the safety and disconnect the power plug.
4. 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.
5. 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.
6. 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 oper-
ation. In addition, be sure to turn OFF the power to the machine when replacing the bobbin.
7. 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.
8. 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.
9. When tilting the sewing machine, secure the section marked with the down-pointing arrow
(⇩) to prevent the table from shifting.
10. When tilting or raising the sewing machine, hold the upper section of sewing machine with
both hands and carefully tilt/raise the sewing machine while taking care not to allow your
ngers and other parts of your body to be caught under the machine.
* When tilting/raising the sewing machine, neither push the operation panel nor put hands
on it.
⇩

ix
CAUTION :
To avoid malfunction and damage of the machine, conrm the following.
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.
11. For the purpose of protecting the operation panel, do not wipe it with a cloth dampened
with thinner or the like which contains volatile constituent, wet cloth or hard cloth.
12. 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.
13. When the sewing machine is used for the rst time after
delivery or after an extended time of disuse, remove rub-
ber 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.

x
In addition, be aware that the safety devices such as the "eye protection cover" and "nger guard" are
sometimes omitted in the sketches, illustrations and gures included in the Instruction Manual for the
explanation's sake.
In the practical use, never remove those safety devices.
CAUTION
SAFETY DEVICES AND WARNING LABELS
Thread take-up lever
cover
This is a cover for pre-
venting contact between
the human body and the
thread take-up lever.
Warning label (Refer to
the warn-
ing label
on page i.)
The label gives the minimum
precautions to be taken
when operating the sewing
machine.
Finger guard
This is a cover for
preventing contact
between ngers
and the needle.
Electrical-shock
danger label
(EU type)
(Refer to
"Electri-
cal-shock
danger
label" on
page i.)
In order to protect
against electrical
shock, safety
precautions to
be taken to avoid
danger are writ-
ten on this label.
Pulley cover
This is a cover for
preventing entangle-
ment of hands, hair
and clothes by the
hand pulley.
Warning label
against pinching
This is the caution
label to protect n-
gers, etc. from being
caught between the
bed and table during
maintenance.
Temperature warning label
This label warns that there is a risk
of a burn due to contact with the
high-temperature parts of the device.
Power switch
This is a switch for disconnecting the
power unit of the sewing machine from
the power supply.
Power switch (EU type)
This switch is used for discon-
necting the power unit of the
sewing machine from the power
supply. It is also used as the
emergency stop switch.
Selection of the power switch
Use the IEC60204-1-compliant power
switch with rated current of 20 A or more
and short-circuit breaking capacity of 120
A or more, which has the operating sec-
tion in red against the yellow background.
Warning label against
pinching
This is the caution label to
protect ngers, etc. from
being caught between the
thread take-up lever and
the thread take-up lever
cover.

xi
CONTENTS
1. Specications ............................................................................................ 1
2. Name of each component......................................................................... 2
3. Standard adjustment................................................................................. 4
(1) Feed dog height and gradient .................................................................................. 4
(2) Adjusting the needle and the hook.......................................................................... 6
(3) Operating timing of the feed..................................................................................... 8
1）DDL-9000C-F type...........................................................................................................................8
2）DDL-9000C-S type ..........................................................................................................................9
(4) Bobbin insertion...................................................................................................... 10
(5) Adjustment of inner hook presser position .......................................................... 12
(6) Lubrication............................................................................................................... 14
1) Method of lubrication ....................................................................................................................14
2) Method of lubrication to the oil tank ...........................................................................................16
3) Method of oil drainage from the oil tank......................................................................................16
4) Cleaning of the oil lter ................................................................................................................18
5) Adjusting the amount of oil in the hook ......................................................................................20
6) Hook oil adjustment procedures ..................................................................................................20
7) Essentials for hook oil adjustments ............................................................................................20
8) Replacement of the hook shaft oil wick.......................................................................................20
(7) Various origin adjustments ................................................................................... 22
1) Z-phase adjustment of a main motor ...........................................................................................22
2) Adjustment of the origin of a presser lifter motor ......................................................................26
3) Pitch motor adjustment.................................................................................................................28
4) Vertical feed motor adjustment ....................................................................................................30
5) Vertical feed link adjustment ........................................................................................................32
6) Adjustment of forward reverse stitches (correction function) ..................................................34
7) Adjustment of active tension (only the DDL-9000C-F) ...............................................................36
(8) Adjusting the needle thread presser device ......................................................... 40
1) Needle thread presser device .......................................................................................................40
2) Adjusting the remaining length of needle thread .......................................................................42
3) Length of needle thread remaining at the needle .......................................................................42
4) Response to problems occurring at the beginning of sewing ..................................................44
5) Response to problems occurring at the beginning of sewing ..................................................48
(9) Adjusting the thread trimming unit........................................................................ 52
1) Adjustment of the thread trimming cam position .......................................................................52
2) Adjustment of the thread trimming link stopper screw..............................................................52
3) Adjustment of the thread trimming cam position .......................................................................54
4) Adjusting the knife unit .................................................................................................................56
4) Adjusting the knife unit .................................................................................................................58
5）Adjustment of thread trimming speed........................................................................................58
4) Adjusting the knife unit .................................................................................................................59
6) Adjustment of rise of the second thread tension disc ...............................................................60
7) Adjustment of the picker ...............................................................................................................62
8) Adjustment of the driven part stopper ........................................................................................64
9) Adjustment of the driven part stopper.........................................................................................66
10) Installed length of the thread trimmer connector bar (asm.)...................................................66
11) Protrusion of the thread trimming shaft and stopper position ...............................................68
(10) Adjustment of thrust values of an upper shaft................................................... 70
(11) Adjustment of external parts ................................................................................ 72
1) Adjustment of the pulley cover.....................................................................................................72

xii
2) Clearance of the hand wheel ........................................................................................................72
3) Adjustment of the bobbin winder unit ........................................................................................74
4．Control panel.......................................................................................... 76
(1) Names and functions of the panel keys................................................................ 76
1) DDL-9000C-S ..................................................................................................................................76
2) DDL-9000C-F ..................................................................................................................................77
(2) To use the functions of the serviceperson level ................................................. 78
1) DDL-9000C-S ..................................................................................................................................78
2) DDL-9000C-F ..................................................................................................................................79
(3) External interface .................................................................................................... 80
1)USB ..................................................................................................................................................80
(4) Communication function ........................................................................................ 81
1) How to use the communication function (DDL-9000C-S) ..........................................................81
2) How to use the communication function (DDL-9000F-F) ...........................................................82
3) List of communication data formats.................................................................................... 85
(5) Function of formatting the USB device................................................................. 86
1) DDL-9000C-S ..................................................................................................................................86
2) DDL-9000C-F ..................................................................................................................................87
(6) Check program ........................................................................................................ 88
1) Function of the check program（DDL-9000C-S） ........................................................................88
2) Use a check program function.（DDL-9000C-S） ........................................................................89
3) Function of the check program（DDL-9000C-F） ........................................................................92
4) Use a check program function.（DDL-9000C-F） ........................................................................93
(7) Initialization of data................................................................................................. 95
1）DDL-9000C-S.................................................................................................................................95
2）DDL-9000C-F .................................................................................................................................96
(8) Brightness adjustment of a panel.......................................................................... 97
(9) Hand switch setting................................................................................................. 97
(10)Key customization.................................................................................................. 98
1) Assignable data..............................................................................................................................98
2) How to assign a function to a key ................................................................................................99
(11) Setting the key-lock and the password ............................................................. 101
5．Data list................................................................................................. 103
(1) List of pattern functions ....................................................................................... 103
1） Setting items under the pattern sewing mode .........................................................................103
2) Setting items for the polygonal-shape stitching steps ............................................................104
(2) List of memory switch data .................................................................................. 105
1) Level 1...........................................................................................................................................105
2） Level 2 .......................................................................................................................................... 111
(3) Details of a memory switch .................................................................................. 114
(4) List of errors .......................................................................................................... 118
6．Electrical component and the like..................................................... 122
(1) Construction of a control box and how to remove a board .............................. 122
1） Construction of a control box ....................................................................................................122
2) How to remove the CTL board assembly ..................................................................................122
3) How to remove the PWR board assembly .................................................................................122
(2) Various boards....................................................................................................... 123
1） FLT-T board assembly ................................................................................................................123
2） FLT-S board assembly ................................................................................................................123

xiii
3)PWR board assembly /PWR -CE board assembly....................................................................124
4)CTL board assembly /CTL -D board assembly .........................................................................125
5) INT board assembly ....................................................................................................................126
(3) Optional input-output connector ......................................................................... 127
1) How to set an optional input-output function（DDL-9000C-S） ............................................... 127
2) How to set an optional input-output function（DDL-9000C-F） ............................................... 130
3) Position where an optional input-output connector is placed ................................................131
7. Maintenance........................................................................................... 136
(1) Oil quantity check.................................................................................................. 136
(2) Cleaning ................................................................................................................. 136
(3) Application of appropriate grease ....................................................................... 138
1) Needle bar lower bushing and presser bar bushing ................................................................138
2) Feed bar mechanism ...................................................................................................................138
3) Face plate mechanism.................................................................................................................140
4) Inside a gear box..........................................................................................................................142
(4) Application of appropriate grease ....................................................................... 144
(5) Thread take-up lever mechanism......................................................................... 146
(6) Replacement of the motor .................................................................................... 148
(7) Replacement of the timing belt ............................................................................ 148
(8) Replacing the fuse................................................................................................. 150
(9) Changing the voltage 100V/200V ......................................................................... 150
(10) How to remove a panel ....................................................................................... 152
8. Screws for attachment and positions of external parts .................... 154
9. Dry hook................................................................................................. 155
10. Connection diagram of the head and electrical component ........... 156
(1) Digital type ............................................................................................................. 156
(2) Full digital type ...................................................................................................... 157
11.Troubles and corrective measures ..................................................... 158
(1) Mechanical components....................................................................................... 158
(2) Sewing performance ............................................................................................. 163
12．Drawing of table................................................................................. 180

– 1 –
1. Specications
No.
Model DDL-9000C-SMS DDL-9000C-SSH DDL-9000C-FMS DDL-9000C-FSH
Item
Semi-dry for stan-
dard materials
(Digital type)
Minute-quantity lubrica-
tion for heavy-weight
materials
(Digital type)
Semi-dry for standard
materials
(Full digital type)
Minute-quantity lubrica-
tion for heavy-weight
materials
(Full digital type)
1 Max. sewing speed 5000sti/min
*1
4500sti/min
*2
5000sti/min
*1
4500sti/min
*2
2 Max. stitch length Difference of stitch length 5 mm
3 Needle bar stroke 30.7mm 35mm 30.7mm 35mm
4 Take-up lever stroke 110mm 113mm 110mm 113mm
5 Thread trimming method Double-edged rotary type
6 Lower bobbin winder unit Built-in the machine head (with bobbin thread holding plate)
7 Needle thread nipper
unit（NB type）
Electromagnetic
8 Horizontal feed control Electronic control
9 Vertical feed control Electronic control
10 Feed locus 4 kinds
11 Needle thread tension Spring type Active tension
12 Presser foot pressure Spring type Electronic control
13 Number of patterns Sewing pattern : 99 patterns
(For the polygonal shape sewing, as many as 10 patterns can be registered.)
Cycle sewing pattern : 9 patterns
Custom-pitch pattern 20 patterns
Condensation custom pattern 9 patterns
14
Data com- munication
NFC With
USB With
LAN Without With
15
Lubrication system
Plate (needle bar) Grease lubrication Oil wick lubrication Grease lubrication Oil wick lubrication
Hook Plunger pump type
Gearbox Grease lubrication+Special surface processing
16
Oil supply
Plate (needle bar) Grease lubrication +
Special surface
processing
Oil wick lubrication Grease lubrication +
Special surface pro-
cessing
Oil wick lubrication
Hook With oil tank (capacity: 150 ml)
17
Oil to be used
Plate (needle bar)
JUKI Grease A
(Part No.: 40006323)
No.1
or
7
*3
JUKI Grease A
(Part No.: 40006323)
No.1
or
7
*3
Hook No.1 or 7 *3
Gearbox
JUKI Grease A (product No.: 40006323)
18 Lifting amount of
presser
By hand：5.5mm、By knee：15mm
Auto：1st step 5.0mm
（*4：0.1 ～8.5mm）2nd step 8.5mm （*4：8.5 ～13.5mm）
19 Needle DB×1(#11)#9 ～18
1738 (Nm75) Nm65 to 110
DB×1(#21)#20 ～23
1738
（Nm130）Nm125 to 160
DB×1(#11)#9 ～18
1738（Nm75）Nm65 to 110
DB×1(#21)#20 ～23
1738
（Nm130）Nm125 to 160
DP×5(#11)#9 ～18
134（Nm75） Nm65 to 110
DP×5(#21)#20 ～23
134（Nm130） Nm125 to 160
DP×5(#11)#9 ～18
134（Nm75）Nm65 to 110
DP×5(#21)#20 ～23
134（Nm130）Nm125 to 160
20
Dimensions
From needle to
machine arm (width)
303mm
From needle to
machine arm (high)
137mm
Bed size 178mm×517mm
21 Machine head drive Compact AC servomotor：400W
that is directly connected to the main shaft（direct-drive system）
22 Machine head weight 40.5kg
23 Power consumption 520VA
24 Working temperature
and humidity
Temperature: 5 °C to 35°C, humidity: 35% to 85% (No dew condensation permissible)
25 Supply voltage and
frequency
Rated voltage ±10%, 50/60Hz
26
Noise SMS ;- Equivalent continuous emission sound pressure level (LpA) at the workstation:
A-weighted value of 81.5 dBA ; (Includes KpA = 2.5 dBA) ; according to ISO 10821- C.6.2
-ISO 11204 GR2 at 5,000 sti/min.
SSH ;- Equivalent continuous emission sound pressure level (LpA) at the workstation:
A-weighted value of 77.5 dBA ; (Includes KpA = 2.5 dBA) ; according to ISO 10821- C.6.2
-ISO 11204 GR2 at 4,500 sti/min.
*1： Stitch length 0.00 ～4.00：5,000sti/min, stitch length 4.05 ～5.00：4,000sti/min
*2： Stitch length 0.00 ～4.00：4,500sti/min, stitch length 4.05 ～5.00：4,000sti/min
*3：JUKI New Defrix Oil No. 1 or JUKI Machine Oil 7 (equivalent to ISO VG7)
*4：It's adjusted by a panel

– 2 –
2. Name of each component
󱢽
❷
❸
󱢸
❹
❺
❻
❽
❶
󱢴
❼
❾
󱢵
󱢶
󱢷
󱢺
󱢻
󱢼
󱢼
󱢳
󱢹
󱢽
❶Power switch 󱢵Reverse feed lever
❷Operation Panel 󱢶Minute adjustable presser lifting screw
❸Pulley cover (only for DDL-9000C-S)
❹Thread stand 󱢷Hand wheel
❺Control box (SC-950, SC-951) 󱢸Take-up lever cover
❻Operation pedal 󱢹Finger guard
❼One-touch type reverse feed button 󱢺Under cover
❽Needle thread presser device 󱢻1st thread tension
❾Bobbin winder unit 󱢼 2nd thread tension
󱢳LED hand light 󱢽Knee lifter
󱢴Oil ller port 󱢾Power switch (For CE)

– 3 –
❶Power switch
This switch turns on and off the power to the head unit motor, electric components, and operation panel.
❷Operation panel
It allows you to adjust the automatic reverse feed stitching speed and a head sewing speed and set a
feed pitch and so on.
❸Pulley cover
This cover protects the machine head motor.
❹Thread stand
❺Control box Control box (Fll digital type SC-950, Digital type SC-951)
The box contains the circuit that controls the head unit and motor, the output circuit that operates each
output (the thread trimming solenoid, back solenoid, wiper solenoid, etc.), the pedal sensor that detects
the pedal operation, and the power circuit that performs each function.
❻Operation pedal
This pedal allows users to conduct machine speed control, thread trimming, presser lifting motion (only
for AK-154), and more by depressing the front or back part of the pedal.
❼One-touch type reverse feed button
This button allows users to conduct reverse stitching.
❽Needle thread presser device
This device is able to tuck the needle thread on the wrong side of material under control of the signal
from the control box.
❾Bobbin winder unit
This unit is integrated into the head unit.
󱢳LED hand light
This is the LED hand light installed on the bottom of the arm jaw. The light illuminates the area sur-
rounding the needle entry. Its brightness can be adjusted with the hand switch. It should be adjusted to
match the sewing item and/or to your preference.
󱢴Oil ller port
This port is used for lubrication to the hook.
󱢵Feed lever
This lever allows users to conduct reverse stitching.
󱢶Minute adjustable presser lifting screw (only for DDL-9000C-S)
󱢷Hand wheel
󱢸Take-up lever cover
This cover prevents users from touching the take-up lever.
󱢹Finger guard
This guard prevents users (mainly thumb and ngers) from touching the needle.
󱢺Under cover
󱢻1st thread tension
󱢼 2nd thread tension
󱢽Knee lifter
󱢾Power switch (for CE)

Standard feed dog height
（panel setting value : 0）
DDL-9000C-FMS/SMS : 1mm
DDL-9000C-FSH/SSH：1.3mm
a
a
b
b
3. Standard adjustment
(1) Feed dog height and gradient
WARNING :
Be sure to turn the power OFF before the following work in order to prevent personal injury due to
unintentional starting of the sewing machine.
Standard adjustment
Medel DDL-9000C-FMS/SMS DDL-9000C-FSH/SSH
Seam speci-
cation
Medium-weight materials S type Heavy-weight materials H type
Depends on
the destina-
tion
AA GG BB EE AA GG BB EE
For general
export
For Chine For Europe For Japan For general
export
For Chine For
Europe
For
Japan
Needle plate B119012I0B
Four φ1.6
B1109552000
Four φ1.9
B119012I0B
Four φ1.6
11028008
Four φ1.9
40089605
Four φ2.6
11062007
Threeφ2.6
40089605
Four φ2.6
Opereter side (b) 1.0±0.05 1.3±0.05
Counter op-
erator side (a)
（1.0±0.1） （1.3±0.1）
Timing marker
dot position
on the hori-
zontal feed
bar shaft
① ②
Engraved
marker dot
position on
the horizontal
feed bar shaft
❶ ❷
❸
❹
②
①
– 4 –