JUKI LZ-2290CS User manual

LZ-2290C-S/SC-956A
INSTRUCTION MANUAL

CONTENTS
1. SPECIFICATIONS............................................................................................................ 1
1-1. Specications of the sewing machine head ..................................................................... 1
1-2. Specications of the control box....................................................................................... 1
2. SET UP............................................................................................................................. 2
2-1. Drawing of table................................................................................................................... 2
2-2. Cautions when setting up the sewing machine................................................................ 3
2-2-1. How to carry the sewing machine ............................................................................................3
2-2-2. Caution when placing the sewing machine............................................................................. 3
2-3. Installation............................................................................................................................ 3
2-4. Removing the needle bar stopper...................................................................................... 5
2-5. Attaching the knee-lifter...................................................................................................... 5
2-6. Adjusting the height of the knee lifter ............................................................................... 5
2-7. Installing the thread stand.................................................................................................. 6
2-8. Installing the thread guide pin ........................................................................................... 6
2-9. Installing the electrical box ................................................................................................ 7
2-9-1. Preparing for installation of the control box (Only for the EU type models) ....................... 7
2-9-2. Installing the electrical box.......................................................................................................7
2-10. Installing the reactor box (Only for the EU type models) .............................................. 8
2-11. Connecting the power switch cable................................................................................. 8
2-11-1. Installing the power switch .....................................................................................................8
2-11-2. Connecting the power source cord........................................................................................9
2-12. Installing the accessory ring core (Only for the EU type models)................................ 9
2-12-1. Installing the accessory ring core supplied with the electrical box ................................... 9
2-13. Connecting the cords...................................................................................................... 10
2-13-1. Connecting the cords coming from the sewing machine ..................................................10
2-13-2. Screwing the underside cover ground wire to the underside cover (Only for the EU
type models)............................................................................................................................. 11
2-14. Handling the cords .......................................................................................................... 11
2-15. Attaching the connecting rod......................................................................................... 12
2-16. Adjustment of the pedal.................................................................................................. 13
2-16-1. Installing the connecting rod................................................................................................ 13
2-16-2. Adjusting the pedal angle ..................................................................................................... 13
2-17. Pedal operation................................................................................................................ 13
2-18. Lubrication ....................................................................................................................... 14
2-19. How to use the operation panel (Basic explanation) ................................................... 15
2-19-1. Selection of the language (operation to be done at rst) ..................................................15
2-19-2. Names and functions of the panel keys ..............................................................................17
2-19-3. Basic operation ......................................................................................................................19
3. PREPARATION BEFORE SEWING .............................................................................. 20
3-1. Attaching the needle ......................................................................................................... 20
3-2. Removing the bobbin case............................................................................................... 20
3-3. Placing the bobbin case and the bobbin......................................................................... 21
3-4. Winding a bobbin .............................................................................................................. 22
3-5. Threading the machine head............................................................................................ 23
i

4. ADJUSTING THE SEWING MACHINE ......................................................................... 24
4-1. Thread tension................................................................................................................... 24
4-1-1. Adjusting the needle thread tension .....................................................................................24
4-1-2. Adjusting the bobbin thread tension ..................................................................................... 24
4-2. Thread take-up spring....................................................................................................... 24
4-2-1. Adjusting the thread take-up spring strength.......................................................................24
4-2-2. Adjusting the thread take-up amount of the thread take-up spring.................................... 24
4-3. Presser foot........................................................................................................................ 25
4-3-1. Adjusting the pressure of the presser foot ........................................................................... 25
4-3-2. Adjusting the height of the presser bar.................................................................................25
4-3-3. Micro-lifting mechanism of the presser foot ........................................................................25
4-4. Adjusting the stitch length ............................................................................................... 26
4-5. Changing the sewing speed ............................................................................................. 26
4-6. LED hand light ................................................................................................................... 27
4-7. Reverse feed stitching ...................................................................................................... 27
4-8. Custom switch ................................................................................................................... 28
4-9. Mirror stitching .................................................................................................................. 30
4-10. Fagot stitch ...................................................................................................................... 32
4-11. Adjusting the amount of oil in the hook ....................................................................... 33
5. HOW TO USE THE OPERATION PANEL ..................................................................... 34
5-1. Explanation of the sewing screen (when selecting a sewing pattern) ......................... 34
5-2. Sewing patterns................................................................................................................. 38
5-2-1. Sewing pattern conguration ................................................................................................. 38
5-2-2. List of sewing patterns............................................................................................................ 39
5-2-3. Reverse feed stitching (at start) pattern ................................................................................41
5-2-4. Reverse feed stitching (at end) pattern .................................................................................46
5-2-5. Editing the sewing patterns ....................................................................................................47
5-2-6. List of pattern functions.......................................................................................................... 50
5-2-7. Teaching function ....................................................................................................................60
5-2-8. One-touch utility changeover function ..................................................................................62
5-2-9. Registration of a new sewing pattern .................................................................................... 63
5-2-10. Copying a pattern ..................................................................................................................65
5-2-11. Narrow-down function...........................................................................................................66
5-3. Setting of the sewing shape ............................................................................................. 67
5-3-1. 2-step zigzag, 3-step zigzag and 4-step zigzag stitch .......................................................... 67
5-3-2. Scallop stitching ...................................................................................................................... 70
5-3-3. Blind stitch sewing .................................................................................................................. 73
5-3-4. Custom pattern stitching ........................................................................................................74
5-3-5. T stitch, left...............................................................................................................................74
5-3-6. T stitch, right ............................................................................................................................ 76
5-3-7. Pattern 1....................................................................................................................................79
5-3-8. Pattern 2 (fagoting) ..................................................................................................................81
5-3-9. Pattern 3....................................................................................................................................83
5-3-10. Pattern 4..................................................................................................................................85
5-4. Counter function................................................................................................................ 87
5-4-1. Displaying the sewing screen under the counter display mode .........................................87
5-4-2. Types of the counter................................................................................................................ 87
5-4-3. How to set the counter ............................................................................................................ 88
5-4-4. How to reset the count-completion state ..............................................................................91
5-5. Simplied chart of panel displays ................................................................................... 92
ii

5-6. List of memory switch data .............................................................................................. 93
5-7. List of errors ...................................................................................................................... 98
5-8. Memory switch data ........................................................................................................ 103
6. CARE ........................................................................................................................... 105
6-1. Cleaning ........................................................................................................................... 105
6-1-1. Cleaning the cooling fan installed on the under cover ...................................................... 105
6-1-2. Cleaning the hook section .................................................................................................... 105
6-1-3. Replacing procedure of the hook shaft oil wick ................................................................. 106
6-2. Applying grease............................................................................................................... 106
6-3. Replacing the fuse........................................................................................................... 107
6-4. Disposal of batteries ....................................................................................................... 107
7. ADJUSTMENT OF THE MACHINE HEAD (APPLICATION) ...................................... 108
7-1. Needle-to-hook relation (Hook timing adjustment mode) ........................................... 108
7-2. Adjusting height of the needle bar................................................................................. 109
7-3. Adjusting the needle-to-hook timing and the needle guard........................................ 110
7-4. Attaching / removing the hook........................................................................................111
7-5. Adjusting the thread trimmer ..........................................................................................111
7-6. Adjusting the needle thread feeding device ................................................................. 112
7-7. Height and inclination of the feed dog .......................................................................... 113
7-8. Grease shortage alarm.................................................................................................... 114
7-8-1. Regarding the grease shortage alarm ................................................................................. 114
7-8-2. E221 Grease-shortage error.................................................................................................. 114
7-8-3. Regarding K118 error resetting procedure.......................................................................... 115
8. HOW TO USE THE OPERATION PANEL (APPLICATION)........................................ 116
8-1. Management of sewing patterns.................................................................................... 116
8-1-1. Creation of a new pattern...................................................................................................... 116
8-1-2. Copying a pattern .................................................................................................................. 118
8-1-3. Deleting a pattern................................................................................................................... 119
8-2. Setting up the polygonal-shape stitching ..................................................................... 120
8-2-1. Editing a polygonal-shape stitching pattern .......................................................................120
8-2-2. Creating a new polygonal-shape stitching pattern............................................................. 126
8-2-3. Setting the step from which polygonal-shape stitching is started ................................... 126
8-3. Continuous sewing pattern ............................................................................................ 127
8-3-1. Selecting the continuous sewing pattern............................................................................ 127
8-3-2. Editing the continuous sewing pattern................................................................................ 128
8-3-3. Creating a new continuous sewing pattern......................................................................... 131
8-3-4. Setting the starting step of the continuous sewing pattern .............................................. 131
8-4. Cycle pattern.................................................................................................................... 132
8-4-1. Selecting the cycle pattern ...................................................................................................132
8-4-2. Editing cycle sewing data .................................................................................................... 133
8-4-3. Creating a new cycle pattern ................................................................................................ 134
8-4-4. Setting the step from which cycle sewing pattern is started ............................................136
8-5. Custom pattern ................................................................................................................ 137
8-5-1. Selecting the custom pattern................................................................................................ 137
8-5-2. Creating a new custom pattern ............................................................................................139
8-5-3. Editing the custom pattern ...................................................................................................142
8-5-4. Copying and deleting the custom pattern ...........................................................................143
iii

8-6. Condensation custom pattern........................................................................................ 144
8-6-1. Selecting the condensation custom ....................................................................................144
8-6-2. Creating a new condensation custom ................................................................................. 144
8-6-3. Condensation custom edit function..................................................................................... 146
8-6-4. Copying/deleting a condensation custom........................................................................... 147
8-7. Simple lock of the screen ............................................................................................... 148
8-8. Version information......................................................................................................... 148
8-9. Adjustment of brightness of the LED panel.................................................................. 149
8-10. Information..................................................................................................................... 150
8-10-1. Data communication............................................................................................................150
8-10-2. USB .......................................................................................................................................153
8-10-3. NFC........................................................................................................................................154
8-11. Key customization......................................................................................................... 155
8-11-1. Assignable data....................................................................................................................155
8-11-2. How to assign a function to a key ......................................................................................156
8-12. Maintenance management function ............................................................................ 158
9. SEWING SPEED TABLE ............................................................................................. 162
10. TROUBLES IN SEWING AND CORRECTIVE MEASURES..................................... 163
iv

– 1 –
Model LZ-2290CS LZ-2290CS-7
Application Light-weight materials to medium-weight materials
Max. sewing speed 5,000 sti/min (*1)
Max. zigzag width 10 mm (*2)
Max. feed pitch 5 mm (normal/reverse feed) (*3)
Stitch pattern 14 kinds 20 patterns
Needle SCHMETZ 438 #75 (Needle at the time of delivery)
Lubricating oil JUKI New Defrix Oil No. 1
Multi-layered portion detection function Without
Horizontal feed control Electronic control
Alternate vertical feed control -
Active tension function Without
Thread trimmer Without With
Wiper method Without Front sweeping method
Noise -Equivalent continuous emission sound pressure level (LpA) at the
workstation :
A-weighted value of 81.5 dB; (Includes KpA = 2.5 dB); according to ISO
10821- C.6.2 -ISO 11204 GR2 at 4,000 sti/min.
1. SPECIFICATIONS
1-1. Specications of the sewing machine head
1-2. Specications of the control box
Model SC-956A
Supply
voltage
Single phase
100 to 120V
3-phase
200 to 240V
Single phase
220 to 240V
Single phase
220 to 240V CE
Frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz
Operating
environment
Temperature : 0 to 35˚C
Humidity : 90% or less
Temperature : 0 to 35˚C
Humidity : 90% or less
Temperature : 0 to 35˚C
Humidity : 90% or less
Temperature : 0 to 35˚C
Humidity : 90% or less
Input 600VA 600VA 600VA 600VA
* 1. The max. sewing speed is set to 4,000 sti/min at the time of delivery (depending on the delivery area).
• The speed is limited by setting of the zigzag width of the sewing pattern and feed amount since the speed is
controlled by the amount of zigzag width per stitch and feed amount.
• Properly set the number of revolution in accordance with the product to be sewn and process.
* 2. Max. zigzag width is limited to 8 mm at the time of standard delivery.
* 3. Standard feed amount has been factory-set to 2.5 mm at the time of shipment.

– 2 –
2×R20
116
320
156.5
VV
56
110.5
115
50
R20
R20
（525.4） 520
154.6
（138.5）
322
68.5±0.5
（172.5）
18
Q Q
VV
V
V
Z
Z
Ｚ
Ｚ
X X
X X
Ｙ
Ｙ
279±1
R18
Y
Y
T
T
U U
WW
V V
R242.5
R242.5
S
S
（40）
（15）
390
100
22.5 136
(22.5)
181
0
-1
110
(244)
80
80
80
R20
R22.5
R30
R30
R18
R22.5
29
R10
R10
R10
R10
R20
R22.5
29
50
50
90
1200
R22.5
40
70
535
R30
R30
R30
R30
R6
R6
141 139
43
86.5
21.5
21.5 84
18
75
52
9
14
17 55
27.5
195
52.5
90
R27.5
R27.5
360
810
R8
R8
R8
R8
R8
R8
126.4
54
55
40°
27
R2
C1
C1
R2
R2
40
R2
R2
（6）
W-W
40°
40°
R2
R2
R2
R2
R2
14
10
U-U
17.5±0.5
X-X
(２ヵ所）
Y-Y
（２ヵ所）
23.5±0.5
Z-Z
（２ヵ所）
19.5±0.5
T-T
1
∅8.5
8
∅26
V-V(1:1)
（４ヵ所）
1±0.5
X-X部ゴム取付参考図
1.2±0.5
1.2±0.5
Y-Y部ゴム取付参考図
21
+0.5 0
20 +0.5
0
S-S
Q-Q
30±1
∅16
󱤨
󱤩
󱤪
󱤫
󱤬
󱤭
󱤮
󱤯
󱤰
2. SET UP
2-1. Drawing of table
(2 locations) (2 locations) (2 locations) (4 locations)
Y-Y
Rubber cushion
installing drawing for
reference
X-X
Rubber cushion
installing drawing for
reference
󱤨4×ø3.4 on the bottom surface, depth 20 (Drill a hole at the time of set-up.) 󱤩Installing position of drawer stopper (on the reverse side) 󱤪ø17 drilled hole 󱤫3×ø13 drilled hole 󱤬2×ø3.5, depth 10 󱤭2×ø3.5, depth 10 󱤮 Through hole 󱤯2×ø3.4 on the bottom surface, depth 10 (Drill a hole at the time of set-up.) 󱤰 C1.5 to C2.5 (hinge side only)

– 3 –
2-2. Cautions when setting up the sewing machine
2-2-1. How to carry the sewing machine
Carry the sewing machine while holding the machine
arm with two persons as shown in the gure.
1. Never hold the handwheel since it
rotates.
2. Be sure to handle the sewing machine
with two persons or more since the sew-
ing machine weighs 49.5 kg or more.
3. Do not hold the operation panel por-
tion when you setting up the sewing
machine head.
2-2-2. Caution when placing the sewing machine
Place the sewing machine on a horizontal and plane
place when placing it and do not place any protrud-
ing thing such as a screwdriver or the like.
2-3. Installation
Thank you very much for the purchase of JUKI Industrial Sewing Machine this time. Make sure of items 2-1
through 2-19 before operating to use this sewing machine with ease.
1) The under cover 󱀂should rest on the four cor-
ners of the machine table groove. Mount rubber
hinge seat 󱀃 on the table and x it on the table
with a nail.
2) Fix two rubber seats 󰿿on side 󱤨(operator’s
side) using nails 󱀀as illustrated above. Fix two
cushion seats 󱀁on side 󱤩(hinged side) using a
rubber-based adhesive. Then place under cover
󱀂 on the xed seats.
󰿿
󱀁
󱀃
󰿿
󱀁
23.5 mm 19.5 mm
󰿿
󱀂
󱀁
󱤨󱤩
󱀀
1.2±0.5 mm
1.2±0.5 mm
1±0.5 mm

– 4 –
If the sewing machine is operated with-
out removing air vent cap 󱀄, oil leakage
from gear box portion 󱀅 may occur.
󱀇
󱀂󱀆
󱀄
󱀅
󱀃
󱢳
3) Remove air vent cap 󱀄attached to the machine
bed. (Be sure to attach cap 󱀄when transporting
the machine head in the state that the machine
head is removed from the machine table.)
Do not hold the handwheel.
4) Fit hinge 󱀆into the opening in the machine bed,
and t the machine head to table rubber hinge 󱀃
before placing the machine head on cushions 󱀇
on the four corners.
5) Attach head support rod 󱢳to the machine table.

– 5 –
2-4. Removing the needle bar stopper
220mm
󱀀󱀁
󰿿
󱀀
󱀁
󱀂
󰿿
󰿿
Keep the needle bar stopper which has
been removed, and install this nee-
dle bar stopper when transporting the
sewing machine. The needle bar stopper
may be cut when it is strongly drawn
out. Slightly move the needle bar to the
right or left and slowly draw out the nee-
dle bar stopper.
Remove needle bar stopper 󰿿for transportation.
Insert knee-lifter into attaching hole 󱀀and tighten it
with bolt 󱀁.
* Adjust the position of knee lifter pad 󰿿to a con-
venient place. For the reference dimension, the
position is 220 mm from the bottom face of table.
2-5. Attaching the knee-lifter
2-6. Adjusting the height of the knee lifter
1) The standard height of the presser foot lifted
using the knee lifter is 10 mm.
2) The lift of the presser foot can be adjusted with
knee lifter adjustment screw 󰿿.
Do not operate the sewing machine in
the state that presser foot 3 is lifted by
10 mm or more since needle bar 󱀀 and
presser foot 󱀁, or wiper 󱀂 and presser
foot 󱀁 come in contact with each other.