JUKI MS-1261A-DWS User manual

MS-1261A-DWS
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. SETUP.............................................................................................................................. 2
2-1. Setting up the sewing machine.......................................................................................... 2
2-1-1. Adjusting the sewing machine head........................................................................................ 2
2-1-2. Changing the position of the operation panel ........................................................................3
2-2. Installing the thread stand.................................................................................................. 3
2-3. Oiling and draining of oil .................................................................................................... 4
3. PREPARATION BEFORE SEWING ................................................................................ 5
3-1. Attaching the needle ........................................................................................................... 5
3-2. Threading the machine head.............................................................................................. 6
3-3. Adjusting the thread tension.............................................................................................. 7
3-4. Adjusting the stitch length ................................................................................................. 8
3-5. Adjusting the needle guard ................................................................................................ 9
3-6. Adjusting the looper thread cam...................................................................................... 10
3-7. Adjusting the feed dog height.......................................................................................... 10
3-8. Adjusting the take-up thread tension control lever........................................................ 11
3-9. Adjusting the position of the intermediate tension release lever and needle thread
tension controller .............................................................................................................. 11
3-10. How to adjust the cloth puller .......................................................................................... 12
3-10-1. Adjusting the cloth puller belt and its longitudinal position ............................................. 12
3-10-2. Adjusting the inclination of the cloth puller belt.................................................................13
3-11. LED hand light ................................................................................................................... 13
3-12. To use the sewing machine with a cloth puller for sewing heavy-to medium-weight
materials............................................................................................................................. 14
3-12-1. Replacing the feed dog .........................................................................................................14
3-12-2. Changing the throat plate .....................................................................................................14
3-12-3. Adjusting the difference in height of the presser foot ...................................................... 15
3-12-4. Replacing the needle thread guide ......................................................................................15
3-13. Table of replaceable gauges............................................................................................. 16
3-14. Adjusting the material edge detector .............................................................................. 17
3-15. Needle cooler ..................................................................................................................... 18
3-15-1. Adjusting the position of the blow pipe............................................................................... 18
3-15-2. Adjusting the air ow.............................................................................................................18
3-16. Chain-off thread cutter (suction of thread waste) .......................................................... 18
4. HOW TO USE THE OPERATION PANEL ..................................................................... 19
4-1. Explanation of the operation panel switch ..................................................................... 19
4-2. Operation to be done at rst ............................................................................................ 20
4-2-1. Selection of the language .......................................................................................................20
4-3. How to select a sewing pattern........................................................................................ 23
4-4. How to change the sewing data ....................................................................................... 24
4-4-1. Method of changing the sewing data.....................................................................................24
4-4-2. Method of selecting a specic sewing data item..................................................................24
4-4-3. How to change the part number, process or comment for the sewing pattern data......... 26
i

4-4-4. How to carry out teaching of the multi-layered section of material....................................27
4-4-5. Sewing data on a free sewing pattern ................................................................................... 28
4-4-6. How to edit a step sewing pattern..........................................................................................34
4-4-7. How to carry out the teaching of the number of stitches ....................................................38
4-4-8. List of sewing data...................................................................................................................39
4-5. How to edit/check the data other than sewing data ....................................................... 44
4-5-1. Memory switch data.................................................................................................................45
4-5-2. Counter function ......................................................................................................................50
4-5-3. How to copy / newly create a pattern.....................................................................................54
4-5-4. How to use the warning function ...........................................................................................56
4-5-5. How to use the F key ...............................................................................................................59
4-5-6. Checking the version information..........................................................................................62
4-5-7. Adjusting the contrast of the LCD of the operation panel ...................................................62
4-5-8. Communication function......................................................................................................... 63
4-6. Information......................................................................................................................... 64
4-6-1. Simple lock ...............................................................................................................................64
4-7. List of errors ...................................................................................................................... 65
4-8. External interface .............................................................................................................. 69
4-8-1. USB ...........................................................................................................................................69
4-8-2. NFC............................................................................................................................................70
5. CARE ............................................................................................................................. 71
5-1. Oil quantity in the oil tank................................................................................................. 71
5-2. Lubricating the chain off thread cutter............................................................................ 71
5-3. Changing the cloth puller belt.......................................................................................... 72
5-4. Cleaning ............................................................................................................................. 73
5-5. Replacing the fuse............................................................................................................. 74
ii

– 1 –
Model MS-1261A △DWS MS-1261AM △DWS
Application For heavy- to extra-heavy-weight materials For medium- to heavy-weight materials
Max. sewing speed 5500 sti/min
Number of needle 3
Needle UY×128GAS #16 to 22
(Standard #21）
UY×128GAS #16 to 21
(Standard #19）
Cloth puller system Electronic control
Height of presser foot 10 mm
Stitch length 1.4 to 4.2 mm
Needle gauge 6.4 mm(1/4)
Circumference of cylinder 194 mm
Lubricating oil JUKI NEW DEFRIX OIL No. 1 or JUKI CORPORATION GENUINE OIL 7
Noise
- Equivalent continuous emission sound pressure level (LpA) at the workstation:
A-weighted value of 84.5 dB ; (Includes KpA = 2.5 dB) ; according to ISO 10821- C.6.2
-ISO 11204 GR2 at 4,500 sti/min.
- Sound power level (LWA);
A-weighted value of 91.0 dB; (Includes KWA = 2.5 dB); according to ISO 10821- C.6.2
-ISO 3744 GR2 at 4,500 sti/min.
1. SPECIFICATIONS
1-1. Specications of the sewing machine head
1-2. Specications of the control box
Supply
voltage
3-phase
220 to 240V
Single phase
220 to 240V
Single phase
220 to 240V CE
Frequency 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
Input 820VA 820VA 680VA
MS-1261A DWS
Sewing material type
Space Extra heavy-weight materials
(standard)
M Heavy-weight materials
Needle gauge
F 6.4mm(1/4)

❶❶
❶❶
– 2 –
2. SETUP
2-1. Setting up the sewing machine
Fix the sewing machine on the oor with adjuster
bolts ❶(four pieces).
2-1-1. Adjusting the sewing machine head
Loosen bolts ❶ (four pieces) and adjust the height of sewing machine.
1. Total weight of the sewing machine, machine table and control box is 110 kg or more. It is
necessary to adjust the sewing machine height with four or more persons.
2. Adjust the sewing machine height so that it is levelled.
Be sure to move the sewing machine with two or more persons.

❶
❷
❸
❶
– 3 –
1) Assemble the thread stand device. Fit it
in the hole in the table. Tighten locknut
❶ so that the thread stand does not uc-
tuate.
2) Fix thread stand bracket ❷on the table
with wood screw ❸.
2-2. Installing the thread stand
2-1-2. Changing the position of the operation panel
The operation panel has been installed on the undersurface of the sewing machine table at the time of deliv-
ery. When you install it on the top surface of the sewing machine table, it is necessary to pass panel cord ❶
through hole ❸in the lower section of motor cover ❷.
At the time of shipment
(undersurface of the sewing machine table)
In the case of changing the position of the operation
panel to the top surface of the sewing machine table
❶
❸
❷
❸
❷

❶
H
L
A
B
❶
❶
❷
❸
– 4 –
2-3. Oiling and draining of oil
Before putting your sewing machine into use, ll the oil tank with the oil supplied with the sewing machine.
1) Feeding oil
Detach oil sight window ❶.
Put JUKI New Defrix Oil
No. 1 or JUKI CORPORA-
TION GENUINE OIL 7 into
the oil tank through the oil
hole.
Fill the oil tank with the aforementioned oil until
the oil surface reaches between two indicator
lines (upper marker line A and lower marker line
B). After lling the oil tank, be sure to t oil sight
window ❶ back to its home position.
2) Draining the oil and changing the oil
Firstly, loosen wood screws ❶ (three pieces). Detach oil tank cover ❷. Then, loosen screw ❸. Discharge
the oil remaining in the oil tank completely. After discharging the oil, be sure to tighten screw ❸.
In order to increase durability of the sewing machine, it is recommended to change the oil with new oil af-
ter the rst four weeks have passed since the rst use of the sewing machine, then carry out an oil change
at an appropriate interval.
The waste oil must be disposed of properly according to the relevant laws and regulations in
your area.

– 5 –
Make a choice of the needle count in accordance
with thickness of the thread and type of the material
to be used.
1) Turn the hand wheel until the needle bar reaches
to the highest position of its stroke.
2) Loosen screw ❷in the needle clamp, and turn
needles ❶so that the long groove on the respec-
tive needles is brought in front of you.
3) Insert the needles into the needle clamp hole until
they will go no further.
4) Securely tighten needle clamp screw ❷.
❶
❷Long
groove
3-1. Attaching the needle
3. PREPARATION BEFORE SEWING
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.

❶
MA-1261A
MA-1261AM
a
b
c
a
b
c
a
b
c
a
b
c
a
b
c
a'
b'
c'
a'
b'
c'
a'
b'
c'
c'
b'
a'
a'
b'
c'
c'
b'
a'
❻
❹
❸
❷
①
❶
③
④
④
❷
②
❺
Pass the needle thread on the sewing machine head in numerical order form ①.
Pass the looper thread on the sewing machine head in numerical order from ❶.
a = Right-hand needle thread b = Intermediate needle thread c = Left-hand needle thread
a' = Right-hand looper thread b' = Intermediate looper thread c' = Left-hand looper thread
– 6 –
3-2. Threading the machine head
WARNING :
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.

– 7 –
1) Adjusting the needle thread tension
Turn thread tension nut ❶clockwise to increase or
counterclockwise to reduce the needle thread ten-
sion.
3-3. Adjusting the thread tension
❷
2) Adjusting the looper thread tension
Turn tension adjusting screw ❷clockwise to in-
crease or counterclockwise to reduce the looper
thread tension.
❶