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Juki Symaskin PLC-2760NVM

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PLC-2760NVM

INSTRUCTION MANUAL

CONTENTS

1. Specications ................................................................................................................. 1

2. Threading the machine head ......................................................................................... 2

3. Take-up thread guide ..................................................................................................... 3

4. Pneumatic components (when the pneumatic center guide is used) ....................... 4

5. Setting the incidental device ......................................................................................... 6

5-1. Setting the ON/OFF status of the center guide ................................................... 6

5-2. Setting the optional input for the the center guide ............................................. 8

5-3. Setting the optional output for the center guide ................................................ 9

6. Adjusting the hook needle guard ................................................................................ 10

7. Adjusting the bobbin case opening lever .................................................................. 10

8. Adjusting the timing of the opener ............................................................................. 11

9. How to correct the main shaft reference angle ......................................................... 12

10. Position of the thread trimmer cam .......................................................................... 14

11. Adjusting the position of the moving knife .............................................................. 15

12. Adjusting the position of the clamp spring ............................................................. 16

13. 17 How to adjust the cam timing ....................................................................................

13-1. 17 Timing of the vertical feed cam ........................................................................

13-2. Top feed cam timing .......................................................................................... 18

14. 20 Needle sway (Adjusting the bottom feed amount) ..................................................

15. Tension correction ..................................................................................................... 21

15-1. Tension correction and sewing speed ............................................................. 22

15-2. Tension correction and remaining amount of bobbin thread ........................ 23

16. Thread clamp device .................................................................................................. 25

16-1. How to install the thread clamp device ............................................................ 25

16-2. How to set up the thread clamp device ............................................................ 28

16-3.

How to set the thread clamp operation while the presser foot is in its upper

position.................................................................................................................... 31

17. How to replace the hook cover ................................................................................. 32

18. How to install the oil lter .......................................................................................... 34

19. 35 Counter function .........................................................................................................

19-1. 35 Displaying the sewing screen under the counter display mode ...................

19-2. Types of the counter .......................................................................................... 35

19-3. 36How to set the counter ......................................................................................

19-4. 40How to reset the count-completion state .........................................................

CAUTION

This Instruction Manual for the PLC-2760NVM only describes their differences from the

standard models (PLC-2760V).

For safety-related information, carefully read and fully understand "Safety precautions"

described in the Instruction Manual for the standard models before using your sewing ma-

chine.

– 1 –

1. Specications

PLC-2760NVMA70BBZ

No. Item Application

1 Model PLC-2760NVM

2 Model name 2-needle, post-bed, unison-feed, lockstitch machine with vertical-axis hook

3 Application Medium- to heavy-weight materials, car seat, furniture

4 Sewing speed Max. 2,500 sti/min

(Refer to "10. SEWING SPEED TABLE" in the Instruction Manual for the standard

model.)

5 Needle Ferd. SCHMETZ 134 - 35 (Nm 100 to Nm 180) (Standard : Nm 140)

6 Applicable thread size for sewing #30 to #5 (Europe 60 / 3-20 / 3)

7 Applicable thread size to be cut #30 to #5 (Europe 60 / 3-20 / 3)

8 Stitch length Max. 12 mm (forward/reverse feed)

However, the machine is shipped with its stitch length restricted to 7 mm.

9 Presser foot lift 20 mm

10 Presser foot pressure control Electric control (driven by a pulse motor)

11 Horizontal feed control Electric control (driven by a pulse motor)

12 Alternate vertical feed control Electric control (driven by a pulse motor)

13 Reverse stitch adjusting method Pulse motor driving (with touch-back switch)

14 Number of patterns Sewing pattern ............................ 99 patterns (For the polygonal shape sewing, as

many as 10 patterns can be registered.)

Cycle sewing pattern 9 patterns ...................

Custom-pitch pattern 20 patterns ...................

Condensation custom pattern 9 patterns .....

15 Thread take-up Link thread take-up

16 Needle bar stroke 40 mm

17 Amount of the alternate vertical

movement

MAX. 9 mm

However, the machine is shipped with its stitch length restricted to 6.5 mm.

18 Needle thread tension Electric control (driven by a solenoid)

19 Hook Vertical-axis 1.6-fold hook (Latch type)

20 Feed mechanism Box feed

21 Driv e syst em/Top a nd b otto m

vertical axis drive

Main shaft direct drive system/Timing belt

22 Lubrication Automatic lubrication by semi-dry head plunger pump (with oil gauge)

23 Lubricating oil JUKI New Defrix Oil No. 1 (equivalent to ISO standard VG7)

or JUKI MACHINE OIL No. 7

24 Bed size 643 mm × 178 mm

25 Space under the arm 347 mm × 298 mm

26 Hand wheel size Outer diameter : ø123 mm

27 Motor/Control box DD motor : 800W AC servomotor

Control box : SC-952

28 Machine head weight 88 kg

29 Rated power consumption 600 VA

30 Noise - Equivalent continuous emission sound pressure level (L

pA) at the

workstation:

A-weighted value of 83.5 dB; (Includes K

pA = 2.5 dB); according to ISO

10821- C.6.2 - ISO 11204 GR2 at 2,500 sti/min.

- Sound power level (L

WA);

A-weighted value of 90.5 dB; (Includes K

WA = 2.5 dB); according to ISO

10821- C.6.2 - ISO 3744 GR2 at 2,500 sti/min.

Produktspecifikationer

Varumärke:	Juki
Kategori:	Symaskin
Modell:	PLC-2760NVM
Färg på produkten:	Zilver
Sladdlängd:	1.5 m
Husmaterial:	Aluminium
Antal lampor:	1 gloeilamp(en)
Strömlampa:	10 W
Internationell säkerhetskod (IP):	IP44
Lichtstroom:	600 lm
Lampans livslängd:	30000 uur
Färg ljus:	Neutraal wit
Färgtemperatur:	6400 K
Lämplig för utomhusbruk:	Ja
Totala tillgångar:	50 W
Kompatibla lamptyper:	LED
Strålvinkel:	110 °
Lampteknologi:	LED
Energieffektivitetsklass kompatibel lampa (gammal):	A, A+, A++
Energieffektivitetsklass ingår lampa (gammal):	A
Detekteringsvinkel:	- °