Juki LS-2342 Bruksanvisning
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LS-2342, 2342-7
INSTRUCTION MANUAL
i
CONTENTS
1. SPECIFICATIONS 1 ............................................................................................................
2. INSTALLATION ................................................................................................................ 3
2-1. Attaching the drain container 3 ............................................................................................................
2-2. Installation of the sewing machine 3 ....................................................................................................
2-3. Pneumatic components 5 ......................................................................................................................
2-4. Installing the thread stand 6 .................................................................................................................
3. PREPARATION OF THE SEWING MACHINE 7 ................................................................
3-1. Lubrication 7 ...........................................................................................................................................
3-2. Attaching the needle 8 ...........................................................................................................................
3-3. Attaching and removing the bobbin 8 ..................................................................................................
3-4. Threading the hook 9 .............................................................................................................................
3-5. Winding a bobbin ................................................................................................................................ 9
3-6. Threading the machine head 10 ...........................................................................................................
3-7. How to set the model of the machine head .................................................................................... 11
3-8. Adjusting the machine head 12 ............................................................................................................
4. ADJUSTING THE SEWING MACHINE 14 .........................................................................
4-1. Adjusting the stitch length 14 ...............................................................................................................
4-2. Thread tension 15 ..................................................................................................................................
4-3. Thread take-up spring 16 ......................................................................................................................
4-4. Adjusting the pressure of the presser foot 16 .....................................................................................
4-5. Needle-to-hook relation 17 ....................................................................................................................
4-6. Adjusting the hook needle guard 18 ....................................................................................................
4-7. Adjusting the bobbin case opener 18 ..................................................................................................
4-8. Position of the counter knife and adjustment of the knife pressure (LS-2342S-7, 2342H-7) 19 .....
4-9. Adjusting the amount of the alternating vertical movement of the walking foot and the presser
foot 19 .....................................................................................................................................................
5. OPERATION OF THE SEWING MACHINE 20 ...................................................................
5-1. Hand lifter 20 ..........................................................................................................................................
5-2. Resetting the safety clutch 20 ..............................................................................................................
5-3. Fixing the feed adjusting dial 20 ...........................................................................................................
5-4. Normal-/reverse-feed stitch needle entry points alignment at the time of automatic reverse
feed stitching (LS-2342S-7, 2342H-7) 21 ..............................................................................................
5-5. Operation switches 22 ...........................................................................................................................
5-6. Knee switch (LS-2342S-7, 2342H-7) 24 .................................................................................................
6. SEWING SPEED TABLE 27 ...............................................................................................
7. TROUBLES IN SEWING AND CORRECTIVE MEASURES ......................................... 28
– 1 –
1. SPECIFICATIONS
No. Item Application
1 Model LS-2342S LS-2342S-7
2 Model name Cylinder-bed, 1-needle, unison-feed,
lockstitch machine
(Standard type)
Cylinder-bed, 1-needle, unison-feed,
lockstitch machine with automatic thread
trimmer (Standard type)
3 Application Medium- to heavy-weight materials, car seat, furniture
4 Sewing speed Max. 2,500 sti/min (See "6. SEWING SPEED TABLE" p.27.) *1
5 Needle SCHMETZ 134-35
(Nm 100 to Nm 180, Standard : Nm 140)
6 Applicable thread size for sewing #40 to #5
(US : #33 to #138, Europe : 90/3 to 20/3)
#30 to #5
(US : #46 to #138, Europe : 60/3 to 20/3)
7 Applicable thread size to be cut #30 to #5
(US : #46 to #138, Europe : 60/3 to 20/3)
8 Stitch length Max. 9 mm (forward/reverse feed)
9 Stitch length dial 1-pitch dial 2-pitch dial
10 Presser foot lift Hand lifter : 10 mm, Automatic presser foot lifter : 20 mm
11 Stitch length adjusting mechanism By dial
12 Reverse stitch adjusting method By lever Air cylinder type
(with touch-back switch)
13 Thread take-up Link type
14 Needle bar stroke 40 mm
15 Amount of the alternate vertical
movement
1 mm to 9 mm (Alternate vertical dial adjustment type)
16 Hook Full-rotary vertical-axis 1.6-fold hook (Latch type)
17 Feed mechanism Elliptical feed
18 Top and bottom feed actuation
mechanism
Timing belt
19 Thread trimming method Cam-driven scissors type
20 Lubrication Concentrated tank type oil wick lubrication (partially by manual)
21 Lubricating oil JUKI New Defrix Oil No. 2 (equivalent to ISO standard VG32)
22 Tube diameter 72 mm
23 Space under the arm 347 mm × 127 mm
24 Hand wheel size Outer diameter : ø123 mm
25 Motor/Control box SC-922B
26 Machine head weight 61 kg 63 kg
27 Rated power consumption 310VA
28 Noise - Equivalent continuous emission sound
pressure level (LpA) at the workstation:
A-weighted value of 83.0 dB; (Includes
KpA = 2.5 dB); according to ISO 10821-
C.6.3 - ISO 11204 GR2 at 2,500 sti/min.
- Sound power level (LWA);
A-weighted value of 89.5 dB; (Includes
KWA = 2.5 dB); according to ISO 10821-
C.6.3 - ISO 3745 GR2 at 2,500 sti/min.
- Equivalent continuous emission sound
pressure level (LpA) at the workstation:
A-weighted value of 77.5 dB; (Includes
KpA = 2.5 dB); according to ISO 10821-
C.6.3 - ISO 11204 GR2 at 2,500 sti/min.
*1 The speed setting according to the amount of the alternating vertical movement of the walking foot and presser
foot is automatically carried out.
Produktspecifikationer
| Varumärke: | Juki |
| Kategori: | Symaskin |
| Modell: | LS-2342 |
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