JUKI DDL-8100B-7 Instruction Manual
DDL-8100B-7 Series
INSTRUCTION MANUAL
CONTENTS
I. SPECIFICATIONS ........................................................................................ 1
II. SET-UP ........................................................................................................ 3
1. Installation ..........................................................................................................................................3
2. Installing the pedal sensor ................................................................................................................ 4
3. Connecting the connector .................................................................................................................4
4. How to install the power plug ...........................................................................................................5
5. Attaching the connecting rod ...........................................................................................................5
6. Winding the bobbin thread ................................................................................................................ 6
7. Adjusting the height of the knee lifter ..............................................................................................7
8. Installing the thread stand ................................................................................................................7
9. Lubrication .......................................................................................................................................... 8
10. Adjusting the amount of oil (oil splashes) .......................................................................................8
11. Attaching the needle ........................................................................................................................ 10
12. Setting the bobbin into the bobbin case ........................................................................................ 11
13. Adjusting the stitch length .............................................................................................................. 11
14. Presser foot pressure ...................................................................................................................... 11
15. Hand lifter ......................................................................................................................................... 11
16. Adjusting the height of the presser bar ......................................................................................... 12
17. Threading the machine head ..........................................................................................................12
18. Thread tension .................................................................................................................................13
19. Thread take-up spring .....................................................................................................................13
20. Adjusting the thread take-up stroke ...............................................................................................13
21. Needle-to-hook relationship ............................................................................................................14
22. Height of the feed dog .....................................................................................................................14
23. Tilt of the feed dog ...........................................................................................................................15
24. Adjusting the feed timing ................................................................................................................ 15
25. Cunter knife ......................................................................................................................................16
26. Pedal pressure and pedal stroke .................................................................................................... 16
27. Adjustment of the pedal ..................................................................................................................17
28. Marker dots on the handwheel .......................................................................................................17
III. FOR THE OPERATOR ............................................................................. 18
1. Operating procedure of the sewing machine ................................................................................ 18
2. Operation panel built in the machine head .................................................................................... 19
3. Operating procedure of the sewing pattern .................................................................................. 20
4. Setting of functions .........................................................................................................................22
5. Digital types operation ....................................................................................................................23
6. User Parameter & Technician Parameter .......................................................................................23
7. Details of setting of the main functions ......................................................................................... 26
8. Stitch balance of back-tacking for lockstitch machine ................................................................ 29
9. Error code list ................................................................................................................................... 32
i
I. SPECIFICATIONS
Supply voltage Single phase 220V
Frequency 50Hz/60Hz
Operating environment
Input 210VA
Max. sewing speed 4,000 sti/min
Thread trimming speed 210 sti/min
Stitch length 5 mm
Presser foot lift (by knee lifter) 13 mm
Needle DB x 1 (#14) #14 to 18
Lubricating oil JUKI MACHINE OIL #7
Temperature : 5 to 35˚C
Humidity 35 - 85 % or less
– 1 –
DRAWING OF TABLE
(Hinge side only)
ϕ18 Drilled hole
Drilled hole
0.5
±
40±0.5通し穴
ϕ40
depth 30
depth 10
3-ϕ13
Drilled hole
2-ø3.5 bottom surface, depth 10
Installing position of drawer stopper
(on the reverse side)
4-ϕ3.4 bottom surface, depth 20
(Drill a hole at the time of set-up.)
– 2 –
II. SET-UP
1. Installation
1) Carry the sewing machine with two persons as
shown in the gure above.
(Caution) Do not hold the handwheel.
❽
❸
❶
23.5mm
❷
❶
❹
A
B
❸
❶
19.5mm
❸
2) Do not put protruding articles such as the screw-
driver and the like at the location where the
sewing machine is placed.
3) Adjust so that the oil pan is supported at the four
corners of the table. Mount rubber hinge seat ❽
on the table and x it on the table with a nail.
4
) Two rubber seats ❶ for supporting the head por-
tion on the operator side A are xed on the extended portion of the table by hitting the nail ❷ ,
and the other two rubber cushion seats ❸ on the
hinge side B are xed by using a rubber-based
adhesive. Then, oil pan ❹ is placed.
❻
❾
❼
❽
❼
5) Fit knee lifter pressing rod ❻. Fit hinge ❼ into the opening in the machine bed, and t the machine head
to table rubber hinge ❽ before placing the machine head on cushions ❾ on the four corners.
6) Securely attach head support rod to the table until it goes no further.
* Be sure to install the machine head support bar supplied with the unit.
7) Draw out cable of the control box through cable draw-out hole to route it to the underside of the
sewing machine table.
– 3 –
2. Installing the pedal sensor
❶
3. Connecting the connector
WARNING :
• To protect against personal injury resulting from abrupt start of the sewing machine, be sure to turn the
power OFF, unplug the machine and wait for ve minutes or more before installing the pedal sensor.
• To prevent damage of device caused by maloperation and wrong specications, be sure to connect
all the corresponding connectors to the specied places. (If any of the connectors is inserted into a
wrong connector, not only the device corresponding to the connector can break but also it can start
abruptly, inviting the risk of personal injury.)
• To prevent personal injury caused by maloperation, be sure to lock the connector with lock.
• As for the details of handling respective devices, read carefully the Instruction Manuals supplied
with the devices before handling the devices.
The explanation applies to the case the pedal sensor
is installed on the table for the DDL-8100B-7.
1) Install the pedal sensor to the table with mounting
screws ❶ supplied with the unit. It is necessary
to install the pedal sensor at such a position that
the connecting rod is perpendicular to the table.
2) After the completion of installation of the pedal
sensor on the table, place the sewing machine
head on the table.
❶
Connector connection diagram
Auto-lifter
Underside of the table
Solenoid &
LED/TB unit
Pedal
❷
Do not insert the power plug into the wall
outlet.
Check to be sure that the power switch is
turned OFF.
1) Connect pedal sensor cable ❶ and AC input
cable ❷ supplied with the unit to the control box.
Refer to the connector connection diagram for
connecting ports of the cables.
Be sure to fully insert the connectors into
the corresponding ports until they are
locked.
AC power
supply input
2) Fix the pedal cable and AC input cable
with a staple.
Pedal sensor
Pedal sensor cable
AC cable
Staples
– 4 –
4. How to install the power plug
WARNING :
1. Be sure to attach the ground wire (green/yellow) to the specied location (on the ground side).
2. Take care not to allow terminals to come in contact with each other.
1ø 220V to 240V
Blue
Brown
Green / Yellow
(ground wire)
❶
5. Attaching the connecting rod
AC
220V to
240V
1) Connect the power cord to the power plug.
As shown in the gure, connect the brown and
blue wires to the power supply side and the
green/yellow one to the grounding side.
1. Be sure to prepare the power plug ❶
which conforms to the safety standard.
2. Be sure to connect the ground lead
(green/yellow) to the grounding side.
2) Check that the power switch is in the OFF state.
Then, insert the power plug coming from the pow-
er switch into the plug receptacle.
In prior to the connection of the power plug,
re-check the supply voltage specication
indicated on the control box.
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and a lapse of 5 minutes or more.
❸
❹
❸
❶
Fix connecting rod ❶ to installing hole B of pedal
lever ❷ with nut ❸.
– 5 –
6. Winding the bobbin thread
1) Insert the bobbin deep into the bobbin winder
❽
❸
B
❶
❷
❹
A
C
❻
❼
D
❻
❺
E
❻
6) In case that the bobbin thread is not wound evenly on the bobbin, remove the handwheel, loosen screw
❺ and adjust the height of bobbin thread tension ❽.
• It is the standard that the center of the bobbin is as high as the center of thread tension disk ❻.
• Adjust the position of thread tension disk ❻ to the direction of D when the winding amount of the bobbin
thread on the lower part of the bobbin is excessive and to the direction E when the winding amount of the
bobbin thread on the upper part of the bobbin is excessive.
After the adjustment, tighten screw ❺.
7) To adjust the tension of the bobbin winder, turn the thread tension nut ❼.
spindle ❶ until it will go no further.
2) Pass the bobbin thread pulled out from the
spool rested on the right side of the thread stand
following the order as shown in the gure on the
left. Then, wind clockwise the end of the bobbin
thread on the bobbin several times.
(In case of the aluminum bobbin, after winding
clockwise the end of the bobbin thread, wind
counterclockwise the thread coming from the
bobbin thread tension several times to wind the
bobbin thread with ease.)
3) Press the bobbin winder trip latch ❷ in the direc-
tion of A and start the sewing machine. The bob-
bin rotates in the direction of C and the bobbin
thread is wound up. The bobbin winder spindle ❶
automatically as soon as the winding is nished.
4) Remove the bobbin and cut the bobbin thread
with the thread cut retainer ❸.
5) When adjusting the winding amount of the bobbin
thread, loosen setscrew ❹ and move bobbin
winding lever ❷ to the direction of A or B. Then
tighten setscrew ❹.
To the direction of A : Decrease
To the direction of B : Increase
1. When winding the bobbin thread, start the winding in the state that the thread between the
bobbin and thread tension disk ❻ is tense.
2. When winding the bobbin thread in the state that sewing is not performed, remove the needle
thread from the thread path of thread take-up and remove the bobbin from the hook.
3. There is the possibility that the thread pulled out from the thread stand is loosened due to
the inuence (direction) of the wind and may be entangled in the handwheel. Be careful of the
direction of the wind.
– 6 –
7. Adjusting the height of the knee lifter
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.
❶
❸
❷
1) The standard height of the presser foot lifted using the knee lifter is 10 mm.
2) You can adjust the presser foot lift up to 13 mm using knee lifter adjust screw ❶.
3) When you have adjusted the presser foot lift to over 10 mm, be sure that the bottom end of needle bar ❷
in its lowest position does not hit presser foot ❸.
8. Installing the thread stand
1) Assemble the thread stand unit, and insert it in
the hole in the machine table.
2) Tighten nut ❶.
❶
– 7 –
9. Lubrication
WARNING :
1. Do not connect the power plug until the lubrication has been completed so as to prevent
accidents due to abrupt start of the sewing machine,
2. To prevent the occurrence of an inammation or rash, immediately wash the related portions if
oil adheres to your eyes or other parts of your body.
3. If oil is mistakenly swallowed, diarrhea or vomitting may occur. Put oil in a place where children
cannot reach.
❶
1) Before starting the sewing machine, ll oil pan ❶
A
with JUKI MACHINE OIL #7 up to HIGH mark A.
2) Add oil before the oil surface comes down to
reach the LOW mark B.
3) When you operate the machine after lubrication,
you will see splashing oil through oil sight window
B
❷
❷ if the lubrication is adequate.
4) Note that the amount of the splashing oil is unre-
lated to the amount of the lubricating oil.
1. When you use a new sewing machine or a sewing machine after an extended period of disuse,
use the sewing machine after performing break-in at 2,000 sti/min or less.
2. For the oil lubrication, purchase JUKI NEW DEFRIX OIL No. 1 (Part No. : MDFRX1600C0) or
JUKI MACHINE OIL #7 (Part No. : MML007600CA).
3. Be sure to lubricate clean oil.
4. When the oil surface is lower than the LOW mark, the oiling may be inconsistent. To prevent
inconsistent oiling, add oil before the oil surface comes down to reach the LOW mark.
10. Adjusting the amount of oil (oil splashes)
WARNING :
Be extremely careful about the operation of the machine since the amount of oil has to be checked
by turning the hook at a high speed.
(1) Conrmation of the amount of oil in the hook
Amount of oil (oil splashes) conrmation paper
①
25 mm
70 mm
Oil splashes conrmation paper
Position to conrm the amount of oil (oil splashes)
②
3 - 10 mm
Closely fit the
paper against the
wall surface of the
bed.
* When carrying out the procedure described below in 2, remove the slide plate and take extreme caution
not to allow your ngers to come in contact with the hook.
1) If the machine has not been sufciently warmed up for operation, make the machine run idle for approxi-
mately three minutes. (Moderate intermittent operation)
2) Place the amount of oil (oil spots) conrmation paper under the hook immediately after the machine stops
running.
3) Conrm the height of the oil surface in the oil reservoir is within the range between “HIGH” and “LOW”.
4) Conrmation of the amount of oil should be completed in ve seconds. (Check the period of time with a
watch.)
– 8 –
(2) Adjusting the amount of oil (oil spots) in the hook
1) Turning the oil amount adjustment screw attached
on the hook driving shaft front bushing in the “+”
direction (in direction A) will increase the amount of
oil (oil spots) in the hook, or in the “–” direction (in
B
A
direction B) will decrease it.
2) After the amount of oil in the hook has been prop-
erly adjusted with the oil amount adjustment screw,
make the sewing machine run idle for approximate-
ly 30 seconds to check the amount of oil in the
hook.
(3) Sample showing the appropriate amount of oil in the hook
Appropriate amount of oil (small)
Splashes of oil from the hook
should be nely adjusted in accordance with sewing
processes.
Be careful not to excessively increase/decrease the
amount of oil in the hook. (If the amount of oil is too
small, the hook will be seized (the hook will be hot).
1) The amount of oil shown in the samples on the left
1 mm
If the amount of oil is too much, the sewing product
may be stained with oil.)
Appropriate amount of oil (large)
Splashes of oil from the hook
2) Adjust the amount of oil in the hook so that the
oil amount (oil splashes) should not change while
checking the oil amount three times (on the three
sheets of paper).
2 mm
(4) Conrmation of the amount of oil supplied to the face plate parts
Amount of oil (oil splashes) conrmation paper
①
25 mm
70 mm
Position to conrm the amount of oil
②
(oil splashes)
Oil splashes
conrmation paper
* When carrying out the work described below in
2), remove the face plate and take extreme cau-
tion not to allow your ngers to come in contact
with the thread take-up lever.
1) If the machine has not been sufciently warmed
up for operation, make the machine run idle for
approximately three minutes. (Moderate intermit-
tent operation)
2) Place the amount of oil (oil spots) conrmation
paper under the hook immediately after the ma-
chine stops running.
3) Conrm the height of the oil surface in the oil
reservoir is within the range between “HIGH” and
“LOW”.
4) The time required for the conrmation of the
amount of oil (oil splashes) should be completed
in ten seconds. (Measure the period of time with
a watch.)
– 9 –
Loading...