JUKI DDL-9000B, SC-920 Instruction Manual
DDL-9000B Series
INSTRUCTION MANUAL
CONTENTS
SPECIFICATIONS ................................................1
1. INSTALLATION ............................................2
2. ADJUSTING THE HEIGHT OF THE KNEE
LIFTER ..........................................................4
3. INSTALLING THE THREAD STAND ............4
4. LUBRICATION (DDL-9000B-S , -M ) ........5
5. ATTACHING THE NEEDLE ..........................6
6.
SETTING THE BOBBIN INTO THE BOB-
BIN CASE ........................................................ 6
7. ADJUSTING THE AMOUNT OF OIL (OIL
SPLASHES) IN THE HOOK
(DDL-9000B-S , -M ) ..................................7
(1) How to conrm the amount of oil (oil splash-
es) .................................................................... 7
(2) Sample showing the appropriate amount of oil 7
8. ADJUSTING THE AMOUNT OF OIL IN
THE HOOK (DDL-9000B-S , -M ) ..............8
9. THREADING THE MACHINE HEAD ............9
10. THREAD TENSION ......................................9
(1) Adjusting the needle thread tension ................ 9
(2) Adjusting the bobbin thread tension ............... 9
11. WINDING THE BOBBIN THREAD .............10
12. PRESSER FOOT PRESSURE ...................11
13. ADJUSTING THE STITCH LENGTH .........11
14.
ADJUSTING THE THREAD TAKE-UP
SPRING AND THE THREAD TAKE-UP
STROKE ...........................................................12
15. ADJUSTING THE NEEDLE STOP POSI-
TION ............................................................13
(1) Stop position after thread trimming ................ 13
(2) Adjusting procedure of the needle up/down
stop position .................................................. 13
16. PEDAL PRESSURE AND PEDAL
STROKE .....................................................14
(1) Adjusting the pressure required to depress
the front part of the pedal .............................. 14
(2) Adjusting the pressure required to depress
the back part of the pedal ............................. 14
(3) Adjusting the pedal stroke ............................ 14
17. ADJUSTMENT OF THE PEDAL ................14
(1) Installing the connecting rod .......................... 14
(2) Adjusting the pedal angle .............................. 14
18. PEDAL OPERATION ..................................15
19. NEEDLE-TO-HOOK RELATIONSHIP ........16
20. ONE-TOUCH TYPE REVERSE FEED
STITCHING MECHANISM ..........................17
21. ADJUSTING THE POSITION OF THE
WIPER (DDL-9000B- -WB, -0B) ..........18
22. COUNTER KNIFE .......................................19
23. HEIGHT AND TILT OF THE FEED DOG ....20
(1) Standard value of the height of the feed dog . 20
(2) Adjusting the height and tilt of the feed dog ...20
24. ADJUSTING THE FEED TIMING ...............21
25. THREAD TENSION RELEASE RELEAS-
ING MECHANISM .......................................21
26. MICRO-LIFTING MECHANISM OF THE
PRESSER FOOT ........................................22
27. SEWING CONDENSED STITCHES ...........23
28. FEED CONVERSION SPRING MECHA-
NISM (DDL-9000B-S , -M ) ......................23
29. CARE ..........................................................24
(1) Conrmation of the amount of oil in the hook
oil tank. .......................................................... 24
(2) Cleaning ....................................................... 24
30. APPLYING GREASE .................................. 25
(1) Sections to which grease is to be replen-
ished .............................................................. 25
(2) Releasing procedure of the grease-up warn-
ing for SC-920 ............................................... 26
i
S : Micro-quantity lubrication
M : Semi-dry
D : Dry
SPECIFICATIONS
DDL-9000B-
S :
Medium-weight materials
H : Heavy-weight materials
A : Light weight materials
-SS -MS -DS -SH -MA
Max. sewing
speed
Thread trimming
speed
Stitch length 5 mm
Presser foot lift
(by knee lifter)
Needle
Lubricating oil
Noise
*2
JUKI NEW DEFRIX OIL No. 1
SS, MS, MA ;
'- Equivalent continuous emission sound pressure level (LpA) at the workstation:
A-weighted value of 77 dBA ; (Includes KpA = 2.5 dBA) ; according to ISO 10821- C.6.2 -ISO 11204
SH ;
'- Equivalent continuous emission sound pressure level (LpA) at the workstation:
A-weighted value of 77 dBA ; (Includes KpA = 2.5 dBA) ; according to ISO 10821- C.6.2 -ISO 11204
DS ;
'- Equivalent continuous emission sound pressure level (LpA) at the workstation:
A-weighted value of 79 dBA ; (Includes KpA = 2.5 dBA) ; according to ISO 10821- C.6.2 -ISO 11204
5,000sti/min 4,000 sti/min 4,500 sti/min 5,000 sti/min
500 sti/min (100 to 500 sti/min)
10 mm (standard) 15 mm (max.)
1738 Nm65 to 110
(DB×1 #9 to 18)
134 Nm65 to 110
(DP×5 #9 to 18)
or JUKI MACHINE OIL #7
GR2 at 4,000 sti/min.
GR2 at 4,000 sti/min.
GR2 at 4,000 sti/min.
*1
1738 Nm125 to 160
(DB×1 #20 to 23)
134 Nm125 to 160
(DP×5 #20 to 23)
- JUKI NEW DEFRIX OIL No. 1
or JUKI MACHINE OIL #7
1738 SAN10 Nm60 to 75
(DB×1 SF#8 to 11)
134 Nm60 to 75
(DP×5 #8 to 11)
*3
4mm
• The sewing speed will vary depending on the sewing conditions. The sewing speed preset at the time of shipping is 4,000sti/
min. The thread trimming speed can be changed within the range of ( ). The thread trimming speed preset at the time of
shipping is 420 sti/min.
1
*
: When stitch length exceeds 4 mm or more, set the max. sewing speed to 4,000 sti/min or less for use.
2
*
: Needle used depends on the destination.
3
*
: MA type is for light-weight materials. In the case the sewing machine is used with its speed of stitch set at 4,000 sti/min or
higher, the presser regulating spring and thread tension spring should be changed with S type ones.
– 1 –
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
❸
❶
3) The under cover should rest on the four corners
of the machine table groove. Mount rubber hinge
seat ❽ on the table and x it on the table with a
nail.
2) Do not put protruding articles such as the screw-
driver and the like at the location where the sewing
machine is placed.
❶
23.5 mm
❷
❹
19.5 mm
❸
A
B
4) Fix two rubber seats ❶ on side A (operator’s
side) using nails ❷ as illustrated above. Fix two
cushion seats ❸ on side B (hinged side) using a
rubber-based adhesive. Then place under cover
❹ on the xed seats.
5) Remove air vent cap ❺ attached to the machine
bed.
(Caution)
1. If the sewing machine is operated without
removing air vent cap ❺, oil leakage from
gear box portion C may occur.
2. Be sure to attach cap ❺ when transporting
the machine head in the state that the ma-
chine head is removed from the machine
C
❺
table.
– 2 –
❾
❻
❽
❹
❼
❼
6) 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.
7) Securely attach head support rod to the table
until it goes no further. Regarding the control
panel , remove two side plate xing screws ,
place the rubber packing , which is one of the
accessories of the control panel , between the
head section and control panel , then x them
together.
(Caution)
1. Do not use the screws supplied as accesso-
ries of control panel .
2.
Be sure to mount the machine head support
rod on the machine table so that its height
from the table surface becomes 55 to 60 mm.
For the sewing machine provided with the AK
device, be sure to mount the support rod
on the table so that its height from the table
surface becomes 38 to 43 mm.
8) Bundle cable clip band supplied as accessories
of the machine head at the root of the cable.
2.0 to 3.5 mm
9) Check to be sure that the table and the safety
switch arm are engaged with each other by 2.0
mm to 3.5 mm, with the sewing machine slightly
tilted.
(Caution) If the engagement between the table and
the safety switch arm is 2 mm or less, Error
302 may occur at the time of startup. Or, if the
aforementioned engagement is 3.5 mm or more,
safety switch arm may break.
10) If the engagement between the table and safety
switch arm is outside the range of 2.0 mm and
3.5 mm, loosen safety switch mounting screw
and tilt safety switch in the direction of the arrow
to adjust the engagement of safety switch arm
with the table.
– 3 –
2. ADJUSTING THE HEIGHT OF THE KNEE LIFTER
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
The standard height of the presser foot lifted using the
knee lifter is 10 mm.
You can adjust the presser foot lift up to 15 mm using
knee lifter adjust screw ❶.
(Caution)
1. Do not operate the sewing machine in the
❹
❶
❷
❸
state that the presser foot ❸ is lifted by 10
mm or more since the needle bar ❷ comes
in contact with the presser foot ❸.
2. Knee lifter initial position
If the adjustment screw ❹ is over tightened,
the sewing machine will operate in a state
where the presser foot is lifted up, causing
defective sewing or noise.
3. INSTALLING THE THREAD STAND
❷
❶
1) Assemble the thread stand unit, and insert it in the hole in the machine table.
2) Tighten nut ❶.
3) For ceiling wiring, pass the power cord through spool rest rod ❷.
– 4 –
4. LUBRICATION (DDL-9000B-S , -M )
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
❸
❷
Upper
engraved
marker line
Upper
engraved
marker line
Fill the oil tank with oil for hook lubrication before op-
erating the sewing machine.
1) Remove oil hole cap ❶ and ll the oil tank with
JUKI NEW DEFRIX OIL No.1 (Part No. : MD-
FRX1600C0) or JUKI MACHINE OIL #7 (Part No.
: MML007600CA) using the oiler supplied with the
machine.
2) Fill the oil tank with the oil until the top end of oil
amount indicating rod ❸ comes between the upper
engraved marker line A and the lower engraved
marker B line of oil amount indicating window ❷.
If the oil is lled excessively, it will leak from the
air vent hole in the oil tank or proper lubrication
will be not performed. In addition, when the oil is
vigorously lled, it may overow from the oil hole.
So, be careful.
3) When you operate the sewing machine, rell oil if the top end of oil amount indicating rod ❸ comes down
to the lower engraved marker line of oil amount indicating window ❷.
(Caution)
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 for hook 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. Do not operate the machine with the oil hole cap ❶ removed. Never remove cap ❶ from the oil
inlet in any case other than oiling. In addition, take care not to lose it.
– 5 –
5. ATTACHING THE NEEDLE
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of
the sewing machine.
Use the specied needle for the machine. Use the
proper needle in accordance with the thickness of
D
❶
❷
C
4) Securely tighten screw ❷.
5) Check that long groove C of the needle is facing exactly to the left in direction D.
(Caution) When polyester lament thread is used, if the indented part of the needle is tilted toward oper-
ator's side, the loop of thread becomes unstable. As a result, hangnail of thread or thread breakage
may occur. For the thread that such phenomenon is likely to occur, it is effective to attach the needle
with its indented part slightly slanting on the rear side.
B
A
thread used and the kinds of the materials.
1) Turn the handwheel until the needle bar reaches
the highest point of its stroke.
2) Loosen screw ❷, and hold needle ❶ with its
indented part A facing exactly to the right in direction B.
3) Insert the needle fully into the hole in the needle
bar in the direction of the arrow until the end of
hole is reached.
6.
SETTING THE BOBBIN INTO THE BOBBIN CASE
1) Install the bobbin in the bobbin case so that the
A
2) Pass the thread through thread slit A, and pull
B
C
3) Check that the bobbin rotates in the direction of
thread wound direction is clockwise.
the thread in direction C. By so doing, the thread
will pass under the tension spring and come out
from notch B.
the arrow when thread is pulled.
– 6 –
7. ADJUSTING THE AMOUNT OF OIL (OIL SPLASHES) IN THE HOOK
(DDL-9000B-S , -M )
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) How to conrm the amount of oil (oil splashes)
❶ Amount of oil (oil splashes) conrmation paper
Approx. 25 mm
Approx. 70 mm
* Use any paper available regardless of the material.
❷ Position to conrm the amount of oil (oil splashes)
Hook
3 - 10mm
Oil splashes conrmation paper
* Place the amount of oil (oil splashes) conrmation paper under
the hook and keep it from the hook by 3 to 10 mm to conrm
the amount.
Hook driving shaft front bushing
Bed
Closely fit the
paper against the
wall surface of
the bed.
* When carrying out the procedure described below in 2), conrm the state that the needle thread
from the thread take-up lever to the needle and the bobbin thread are removed, the presser foot is
lifted and the slide plate is removed. At this time, 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 splashes) conrmation paper under the hook while the sewing machine is in
operation.
3) Conrm that oil exists in the oil tank.
4) Conrmation of the amount of oil should be completed in ve seconds. (Check the period of time with a
watch.)
(2) Sample showing the appropriate amount of oil
Appropriate amount of oil (small)
Splashes of oil from the hook
• DDL-9000B-SS, -M : 0.5 to 1 mm
• DDL-9000B-SH : 1 to 3 mm
1) The state given in the gure above shows the appropriate amount of oil (oil splashes). It is necessary to nely
adjust the amount of oil in accordance with the sewing processes. However, do not excessively increase/de-
crease 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). If the amount of oil is too much, the sewing product may be stained with oil.)
2) Check the oil amount (oil splashes) three times (on the three sheets of paper), and adjust so that it should
not change.
– 7 –
Appropriate amount of oil (large)
Splashes of oil from the hook
• DDL-9000B-SS, -M : 1 to 1.5 mm
• DDL-9000B-SH : 2 to 4 mm
Loading...