Juki LK-1920 Handleiding
Juki
Naaimachine
LK-1920
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1
INSTRUCTION MANUAL
LK-1910, LK-1920
i
CONTENTS
1. SPECIFICATIONS 1
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2. CONFIGURATION 2
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2-1. Names of main unit 2
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2-2. Names and explanation of switches on the
operation panel 3
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3. INSTALLATION 4
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3-1. Installing the table 4
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3-2. Installation procedure of the electrical box 5
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3-3. Connecting the power source cord 6
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3-4. How to carry the sewing machine....................7
3-5. Installation of the sewing machine head.........7
3-6. Installing the motor cover.................................8
3-7. Pedal switch 8
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3-8. Tilting the sewing machine head 9 .....................
3-9. Installing the operation panel 9
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3-10. Connecting the cords 10
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3-11. Handling the cords
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11
3-12. Installing the eye protection cover
................
11
3-13. Installing the thread stand 12
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3-14. Installing the auxiliary throat plate cover 12
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3-15. Attaching and removing the bolt for
transportation 13
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4. OPERATION OF THE SEWING MA-
CHINE 14
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4-1. Lubrication 14
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4-2. Attaching the needle 15
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4-3. Threading the machine head 15
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4-4. Installing and removing the bobbin case 16
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4-5. Installing the bobbin 16
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4-6. Adjusting the thread tension 16
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4-7. Adjusting the thread take-up spring 17
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4-8. Adjusting the height of the intermediate
presser (Only for the LK-1920) 17
.......................
4-9. Adjusting the intermediate presser stroke (Only
for the LK-1920) 17
...............................................
5. OPERATION OF THE SEWING MA-
CHINE (BASIC) 19
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5-1. Model selection................................................19
5-2. Selection of language 19
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5-3. Setting the pattern number 20
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5-4. Setting the item data 20
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5-5. Checking the contour of a sewing pattern 23
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5-6. Sewing 24
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5-7. Changing the pattern to a different one 25
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5-8. Winding a bobbin 25
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5-9. Adjustment of the bobbin thread winder
components 27
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6. OPERATION OF THE SEWING MA-
CHINE (ADVANCED) 28
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6-1. Performing sewing using the pattern keys 28
...
6-2. Sewing using the combination function (cycle
sewing) 32
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6-3. Sewing through the use of the counter 35
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6-4. How to use the temporary stop 38
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6-5. Copying or deleting various kinds of pattern
data 39
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6-6. Communication 41
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6-7. Cautions in operation 43
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6-8. Setting enable/disable of standard pattern
invoking 44
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7. MAINTENANCE 45
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7-1. Adjusting the height of the needle bar 45
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7-2. Adjusting the needle-to-shuttle relation 46
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7-3. Adjusting the lift of the work clamp foot 47
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7-4. The moving knife and counter knife 47
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7-5. Adjusting the rising amount of the thread
tension disk 48
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7-6. Thread breakage detector plate 48
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7-7. Draining waste oil 49
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7-8. Replacing the fuse...........................................49
8. HOW TO USE THE MEMORY
SWITCH 50
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8-1. Method of changing memory switch data 50
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8-2. List of the memory switch functions 51
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9. OTHERS.............................................. 55
9-1. LK-1910/-1920 data ROM.................................55
9-2. Connection of the optional pedal 55
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9-3. Error list............................................................58
9-4. Troubles and corrective measures 62
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9-5. Table of the optional parts 63
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9-6. Silicon oil tank 64
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10. DRAWING OF THE TABLE 65
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－ 1 －
1 Sewing area X (lateral) direction 100 mm Y (longitudinal) direction 60 mm
2 Max. sewing speed 2500 sti/min* (When sewing pitches are less than 3 mm.)
3 Stitch length 0.1 to 10.0 mm (adjustable in 0.1 mm step)
4Feed motion of work clamp
foot Intermittent feed (2-shaft drive by stepping motor)
5 Needle bar stroke 41.2 mm
6 Needle DP × 5, DP × 17
7 Lift of work clamp foot 18 mm (standard) Max. 22 mm (Pneumatic type : max. 25 mm)
8 Hook 2-fold semi-rotary hook (oil wick lubrication)
9Intermediate presser
stroke
4 mm (standard)
(Adjustable in the range of 0 and 4 to 10 mm) (LK-1920 only)
10 Lift of intermediate presser 18 mm (LK-1920 only)
11 Lubricating oil New Defrix Oil No. 2 (supplied by oiler)
12 Data recording Memory in MAIN PCB (80 Kbyte)
EEP-ROM (32 Kbyte)
13
Enlarging / Reducing facility
20 % to 200 % (1% step) in X direction and Y direction respectively
14 Enlarging / Reducing
method Pattern enlargement / reduction can be done by increasing/decreasing the stitch length
15
Temporary stop function
Used to stop machine operation during a stitching cycle.
16 Thread breakage detection
function Used to detect needle thread breakage to automatically stop machine.
17 Max. sewing speed limita-
tion 200 to 2,500 sti/min* (100 sti/min steps)
18 Pattern selection
Standard patterns : 51
User patterns : 1 to 200
Old user patterns : 1 to 99
Media patterns : 1 to 999
19 Bobbin thread counter UP/DOWN type (0 to 9999)
20 Sewing machine motor Servo motor
21 Dimensions W : 1200 mm L : 700 mm H : 1160 mm
(Use the standard table and stand.)
22 Mass (gross mass) Machine head : 46 kg Control box : 5 kg
23
Power consumption
380 VA (Operation for 35 seconds at 2,500 sti/min; at rest for two seconds)
24 Operating temperature
range 5 ˚C to 35 ˚C
25
Operating humidity range
35 % to 85 % (No dew condensation)
26 Line voltage Rated voltage ±10% 50/60 Hz
27 Air pressure used 0.5 to 0.55 MPa (Only for the pneumatic type)
28 Air consumption 1.3 ℓ/min (Only for the pneumatic type)
29 Noise
- Equivalent continuous emission sound pressure level (L
pA) at the workstation :
A-weighted value of 77.5 dB; (Includes K
pA = 2.5 dB); according to ISO 10821- C.6.3
-ISO 11204 GR2 at 2,500 sti/min for the sewing cycle, 1.0s ON (Pattern : No.1).
- Sound power level (LWA) ;
A-weighted value of 77.5 dB; (Includes K
WA = 2.5 dB); according to ISO 10821- C.6.3
-ISO 3744 GR2 at 2,500 sti/min for the sewing cycle, 1.0s ON (Pattern : No.1).
* Reduce the max. sewing speed in accordance with the sewing conditions.
1. SPECIFICATIONS
Product specificaties
| Merk: | Juki |
| Categorie: | Naaimachine |
| Model: | LK-1920 |
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