MMMMEE--111100110033
USER
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S MANUAL
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TWO-HEAD AUTOMATIC
EMBROIDERY MACHINE
FOUR-HEAD AUTOMATIC
EMBROIDERY MACHINE
SIX-HEAD AUTOMATIC
EMBROIDERY MACHINE
EIGHT-HEAD AUTOMATIC
EMBROIDERY MACHINE
SIX-HEAD AUTOMATIC
EMBROIDERY MACHINE
(Compact Type)
SWF/E-Series
1. THIS IS AN INSTRUCTION FOR SAFE USE OF AUTOMATIC
EMBROIDERY MACHINES. READ THOROUGHLY BEFORE USE.
2. CONTENTS IN THIS INSTRUCTION MAY CHANGE, WITHOUT
PRIOR NOTICE, FOR IMPROVEMENT OF MACHINE QUALITY AND
THUS MAY NOT CORRESPOND TO THE MACHINE YOU
PURCHASED. CONTACT YOUR SALES AGENT FOR INQUIRIES.
3. THIS IS DESIGNED AND MANUFACTURED AS AN INDUSTRIAL
MACHINE. IT SHOULD NOT BE USED FOR OTHER THAN
INDUSTRIAL PURPOSE.
i
TABLE OF CONTENTS
CHAPTER 1 SAFETY RULES ................................................................................................................ 1-1
1-1) DELIVERY OF YOUR MACHINE........................................................................................1-1
1-2) INSTALLATION.....................................................................................................................1-2
1-3) MACHINE OPERATION ...................................................................................................... 1-3
1-4) REPAIR................................................................................................................................... 1-3
1-5) PLACEMENT OF WARNING STICKERS .......................................................................... 1-4
1-6) CONTENTS OF WARNING STICKERS ............................................................................. 1-5
CHAPTER 2 INSTALLATION AND MACHINE ASSEMBLY ............................................................ 2-1
2-1) ENVIRONMENT ................................................................................................................... 2-1
2-2) ELECTRICITY INSTALLATION ........................................................................................ 2-1
2-3) LEVELING THE MACHINE ................................................................................................ 2-2
2-4) ASSEMBLY OF PERIPHERAL DEVICES ......................................................................... 2-3
2-5) TABLE ASSEMBLY ............................................................................................................. 2-4
2-6) FRAME ASSEMBLY ............................................................................................................ 2-6
2-6-1) TUBULAR FRAME ............................................................................................... 2-6
2-6-2) BORDER FRAME .................................................................................................. 2-7
CHAPTER 3 PARTS OF THE MACHINE .............................................................................................. 3-1
3-1) SWF/E-U SERIES .................................................................................................................. 3-1
3-2) SWF/E-UH 1508-45 ............................................................................................................... 3-2
CHAPTER 4 FUNCTIONS AND FEATURES ....................................................................................... 4-1
CHAPTER 5
FUNCTIONS FOR BASIC MACHINE OPERATION ..................................................... 5-1
5-1) LAMP ON THREAD TENSION ADJUSTMENT BOARD ................................................ 5-1
5-2) NEEDLE STOP CLUTCH...................................................................................................... 5-2
5-3) LAMP ON COLOR CHANGE BOX(SWF/E-UH1508)........................................................ 5-3
5-4) UPPER THREADING AND TENSION ADJUSTMENT .................................................... 5-4
5-5) LOWER (BOBBIN) THREADING AND TENSION ADJUSTMENT ................................ 5-7
5-6) BOBBIN WINDER ................................................................................................................ 5-8
5-7) PRECAUTIONS IN USING FLOPPY DISKS OR USB MEMORY STICKS .................. 5-10
5-8) INSERTING FLOPPY DISKS AND USB MEMORY STICKS ........................................ 5-10
5-9) DELETING FLOPPY DISKS AND USB MEMORY STICK............................................. 5-11
5-10) READING AND WRITING OF EMBROIDERY DESIGNS ........................................... 5-11
5-11) RETURN TO PREVIOUS LOCATION IN UNEXPECTED BLACKOUTS................... 5-11
5-12) NEEDLE-HOOK TIMING CONTROL .............................................................................5-12
5-13) ASSEMBLY AND FUNCTIONS OF THREAD DETECTOR ........................................ 5-17
5-13-1) FUNCTIONS OF THREAD DETECTOR ......................................................... 5-17
5-13-2) DISASSEMBLING THREAD DETECTOR ..................................................... 5-17
ii
CHAPTER 6 MAINTENANCE AND INSPECTION ............................................................................. 6-1
6-1) CHECK POINTS FOR REGULAR INSPECTION .............................................................. 6-1
6-2) CLEANING ........................................................................................................................... 6-1
6-3) OIL SUPPLY ......................................................................................................................... 6-3
6-4) DRIVE BELT TENSION ....................................................................................................... 6-8
CHAPTER 7 MACHINE ADJUSTMENTS ............................................................................................ 7-1
7-1) ADJUSTING THE TRIMMERS ........................................................................................... 7-1
7-1-1) ADJUSTING THE POSITION OF THE TRIMMING CAM
(INSERT ANGLE OF MOVABLE BLADE) ........................................................ 7-1
7-1-2) ADJUSTING BLADE TENSION .......................................................................... 7-2
7-2) ADJUSTING THE TRIMMER RETURN SPRING ............................................................. 7-2
7-3) ADJUSTING UPPER THREAD HOLDING UNIT ...............................................................7-3
7-4) PICKER ADJUSTMENT ...................................................................................................... 7-4
7-5) ADJUSTING UPPER THREAD HOLDER .......................................................................... 7-5
7-6) ADJUSTING LOW-NOISE PRESSER FOOT ...................................................................... 7-6
7-7) RELATIONSHIP BETWEEN PRESSER FOOT AND NEEDLE ........................................ 7-7
7-8) CORRECT POSITION OF NEEDLE .................................................................................... 7-8
7-9) ADJUSTING HALF-TURN FILM FOR COLOR CHANGE ............................................... 7-9
7-10) JUMP MOTOR ADJUSTMENT ....................................................................................... 7-10
7-11) ADJUSTING DRIVE BELT TENSION ............................................................................ 7-11
7-11-1) Y-AXIS TIMING BELT ..................................................................................... 7-11
7-11-2) X-AXIS TIMING BELT ..................................................................................... 7-12
7-11-3) TIMING BELT ON MAIN SHAFT MOTOR .................................................... 7-12
7-12) LAMP (OPTIONAL) ......................................................................................................... 7-13
7-12-1) LAMP SOCKET ADJUSTMENT (4-HEAD) .................................................... 7-13
7-12-2) DISASSEMBLING CABLE COVER (4-HEAD) .............................................. 7-13
CHAPTER 8 TROUBLESHOOTING ..................................................................................................... 8-1
CHAPTER 9
BLOCK DIAGRAM .......................................................................................................... 9-1
SAFETY RULES
CHAPTER 1
1-1
The following set of safety rules categorized as , , and indicates possibilities of
physical or property damages if not fully observed.
: These safety instructions MUST be observed to be safe from danger when installing, delivering, or
repairing the machine.
: These safety instructions MUST be observed to be safe from machine injuries.
: These safety instructions MUST be observed to prevent predictable machine errors.
CAUTION
WARNING
DANGER
CAUTIONWARNINGDANGER
ONLY TRAINED AND EXPERIENCED PERSONS, FAMILIAR WITH THE
RELEVANT SAFETY INSTRUCTIONS, SHOULD HANDLE THE MACHINE.
MAKE SURE TO FULLY OBSERVE THE FOLLOWING INSTRUCTIONS.
1) Using a crane
Make sure that the crane is large enough to hold the machine. Use a nylon
rope of sufficient strength. Place a wooden block at either side of the
machine before tying the rope. The angle should be 40°Δ or less. Make sure
that the rope does not touch the table.
Make sure all persons
and obstacles are out
of the way of the
moving equipment.
[Fig.1-1]
1-1) DELIVERY OF
YOUR MACHINE
DANGER
wooden block
nylon rope
1-2
2) Using a Forklift
Make sure that size and weight of the forklift is sufficient to support the
machine. Use the pallet to place the machine so that its center is on the
forklift arm (see [Fig.1-2]). Lift the machine carefully so that the machine
does not tilt to either side.
[Fig.1-2]
Installation environment may incur machine malfunction or breakdown.
Make sure to meet the following conditions.
1) The foundation under the machine, i.e. table or desk, must be strong enough
to support the weight of the machine (approximately 1 ton).
2) Air conditioning can eliminate dust and humidity that can cause pollution
and corrosion of the machine. Make sure your machine is regularly cleaned.
3) Long exposure to direct sunlight can cause the paint of the machine to fade
or change of the machine shape.
4) Allow at least 50cm (20 inches) of space on each side of the machine for
convenient maintenance.
Please refer to for installation details.
2. Machine Installation and Assembly
1-2) INSTALLATION
CAUTION
[WARNING]
Make sure to maintain the weight balance in machine deliveries,
especially when unloading the machine from a forklift or crane, in
order to prevent injury or machine damages.
1-3
Only SWF-trained and selected repair engineers should do repair work.
1) Turn OFF the power before cleaning or repairing the machine. Wait for 4
minutes so the machine electricity is completely discharged.
2) Do not change the settings or any parts on the machine without
confirmation from SWF. Such change may cause safety accidents.
3) Use only SWF parts when repairing your machine.
4) Replace all safety covers when you are finished with your repair.
1-4) REPAIR
DANGER
The SWF Automatic Embroidery Machine is designed for applying
embroidery to fabric and other similar materials.
Pay careful attention to the and stickers on certain
parts of the machine. Make sure to observe the following when operating
the machine:
01) Read thoroughly and fully understand the manual before operating the
machine.
02) Dress for safety. Long and unbound hair, jewelry such as necklaces,
bracelets, and wide sleeves can get caught in the machine. Wear shoes
with non-slip soles.
03) Clear all persons from the machine before turning on the power.
04) Keep your hands or head away from the moving parts of the machine such
as needle, hook, take-up lever, and pulley when the machine is in
operation.
05) Do not remove the safety cover on the pulley or shaft when the machine is
in operation.
06) Be sure the main power is turned off and the power switch is set to OFF
before opening the cover of any electrical component or control box.
07) Be sure the main switch is OFF before manually turning the main shaft.
08) Turn the machine off when threading needles or inspecting the finished
embroidery.
09) Do not lean against the cradle or place your fingers near the guide grooves
of the frame.
10) The machine noise may exceed 85db when it is run at a maximum speed.
It is not higher than the standard level, but you may need earplugs or
sound-proof facilities for the operator and other workers.
CAUTIONWARNING
1-3) MACHINE
OPERATION
[CAUTION]
It takes about 10 minutes after turning off the main switch before the
electricity is fully discharged from X/Y main shafts and the drive box.
WARNING
1-4
Observe the directions on ALL warning stickers placed on the machine as
reminders for your safety.
1) Location of Warning Stickers
1-5) Placement of
Warning Stickers
Fire or death may be caused by
high voltage electric shock.
Don’t open the cover except for
service man assigned by SWF.
When open the cover turn off
power and wait for 6 minutes.
Open the upper shaft cover of
each head and supply the
designated oil.
Injury may be caused by winding.
Be sure to turn off the power
before cleaning, lubricating,
adjusting or repairing.
Physical damage may be
caused by winding.
Don’t put your hands near the
arrow while the main shaft is
rotating
Injury may be caused by moving
needle.
Ensure that the machine is in a
stop condition before changing,
threading or rethreading of
needies or changing of needles.
Turn off the main power before
rotating the main shaft by hand!
Do not remove covers during
operation!
Turn off the main power before
opening electricity-related boxes!
Physical damage may be caused
by interposition.
While embroidery frame is running
according to the direction of
embroidery frame may be injured
your hands by gap between fixed
body and embroidery frame.
Physical injury may be caused
by crevice.
Don t put your finger in a groove
on the table.
[Fig.1-3 Front]
[Fig.1-4 From top]
1-5
1) Warning
1-6) Contents of
Warning Stickers
Injury may be caused by moving
needle.
Ensure that the machine is in a stop
condition before changing, threading or
rethreading of needies or changing of
needles.
Fire or death may be caused by high
voltage electric shock.
Don’t open the cover except for service
man assigned by SWF.
When open the cover turn off power and
wait for 6 minutes.
[ Notice ]
Safety cover in the WARNING refers to all covers
near the operating parts of the machine.
Injury may be caused by winding.
Be sure to turn off the power before
cleaning, lubricating, adjusting or
repairing.
2-1
Install your machine in an appropriate environment and with adequate electrical supply. Failure to follow the
directions may result in machine malfunction.
2-1) ENVIRONMENT
1) Temperature: ① 0∼40°C (32∼104°F) when the machine is in operation
②－25∼55°C (－13∼131°F) when the machine is not in operation
2) Humidity: 45∼90% (relative)
3) Grounding: Ensure the electricity is properly grounded.
4) Close any doors and windows near the machine to prevent direct light, dust, and humidity.
5) Foundation under the machine must be a sufficiently strong and flat concrete to support the weight of the
machine.
2-2) ELECTRICITY INSTALLATION
Check if the input voltage of the machine is in the right range of the voltage supply before installing or operating
the machine. The voltage required is as follows:
1) Input voltage (to be adjusted when installing): 110V, 220V
2) Allowed range of voltage: within ±10% of the voltage set
3) Electric capacity and voltage consumption: 640VA 440W
4) Insulation resistance: over 10M ohms (measured with 500V insulation tester)
INSTALLATION AND MACHINE ASSEMBLY
CHAPTER 2
[CAUTION]
Do not let moisture drops on the machine.
Provide air conditioning to control humidity and to prevent dust and corrosion.
DANGER
WARNING
Properly ground the machine to avoid the possibility of electric shock. Use three-wire
grounding (grounding resistance below 100 ohms).
Check the voltage supply where the machine will be installed.
Install the cable away from the operator’s work space to prevent accident or injury.
2-2
2-3) LEVELING THE MACHINE
The machine must be accurately leveled (especially front and back) to prevent the needle from moving out of
position.
1) Use the adjusting bolts installed at the four stands to level the machine (front, rear, left, and right). Use a level
gauge.
① Check the voltage supply where the machine will be installed.
② Install the cable away from the operator’s work space to prevent accident or injury.
③ If the difference in heights of the four bolts is over 10mm, place spacers beneath the lower adjusting bolts to
make the heights even.
2) The machine must be horizontally balanced on all four sides - front, rear, right, and left.
3) Using the level gauge
Use a nut to fully fasten the adjusting bolts when the machine is leveled.
[CAUTION]
The level gauge does not measure accurately on a square pipe or a table.
[Fig.2-2]
[Fig.2-3]
[Fig.2-1]
Level gauge
Level gauge
Adjusting bolts
Level base
2-3
2-4) ASSEMBLY OF PERIPHERAL DEVICES
1) Assembling Upper Thread Stand
2) Assembling Operation Box
[Fig.2-4]
[Fig.2-5] [Fig.2-6]
Spool plate
thread holder
Operation box
support
2-4
2-5) TABLE ASSEMBLY
1) Unscrew the eight clamps underneath the table and the bolts to disassemble the table.
2) Adjust the table support at an appropriate height and fasten the bolts.
[Fig.2-7]
[Fig.2-8]
Clamp
Clamp
Clamp
Table support
Table
Table support
bolts
Bolts
Table height
Work type
board tubular cap
2-5
3) Insert the table and fasten the bolts and the clamps.
[Fig.2-9]
[Fig.2-10]
[CAUTION]
The table should not be higher than the upper side of the needle plate by 0.5mm for board frame
work. If the height difference is over 0.5mm, unfasten the table support bolts, adjust the height, and
fasten the bolts back.
Clamp
Clamp
Clamp
Table support
Bolts
height difference
if gap is larger
than 0.5mm
Table support
Bolts
2-6
2-6) FRAME ASSEMBLY
2-6-1) Tubular Frame
1) Unfasten screws on the tubular frame 2/3, install the tubular frame in the groove of the frame connection plate,
and fasten the bolt.
2) Insert the frame into the tubular frame. Use the screws to adjust the space.
[Fig.2-11]
Tubular frame
Frame connection plate
Fixing hole
Fixing bolt
[CAUTION]
Do not install the tubular frame too close from the X frame. Keep the space at around 2mm.
2-7
[Fig.2-12]
[Fig.2-13]
Tubular frame
Fixing bolts
Screws
Fixing bolts
2-6-2) Border Frame
1) Unfasten screws on the tubular frame 2/3 and remove the frame.
2) Adjust the table height at an appropriate level for border frame work. (See 2.5) TABLE ASSEMBLY)
3) Unfasten screws on the border frame 2/3 and install the border frame in the groove of the X frame connection
plate. Fasten the bolt.
[CAUTION]
At this time, don't keep a border frame close to the X-frame by force and tighten the bolt while
maintaining the gap of about 2mm between the two frames.
PARTS OF THE MACHINE
CHAPTER 3
3-1
[Fig.3-1]
Machine Body
Table
Upper thread stand
Main shaft drive motor
Rotary hook base
Trimming cam box
Arm
Color Change
Upper thread holder
Head
Thread tension
adjustment board
Sub-controller
X-axis driving system
Y-axis driving system
Emergency stop
S/B button
Tubular frame
Border frame
Controller box
Operation box
Encoder
Main power switch
Leveling base
Sub support
Thread detector
Emergency power
switch
3-1) SWF/E-U SERIES
3-2
Main Body
Table
Upper thread stand
Main shaft drive
motor
Rotary hook base
Trimming cam box
Arm
Color Change
Upper thread holder
Head
Thread tension
adjustment board
Sub-controller
X-axis driving system
Y-axis driving system
Emergency stop
S/B button
Tubular frame
Border frame
Controller box
Operation box
Encoder
Main power switch
Leveling base
Sub support
Thread detector
Emergency power
switch
3-2) SWF/E-UH1508-45
[Fig.3-2]
4-1
01) EXPANDED MEMORY SIZE
The machine can store a maximum of 100 designs. The basic memory size is 2 million stitches.
02) MIRROR IMAGE CONVERSION AND DESIGN DIRECTION
You can turn the design from 0°to 359°in the increments of 1°and also reverse the design in the X direction
(mirror image).
03) ENLARGING AND REDUCING DESIGN
You can reduce or enlarge the embroidery design in size from 50% to 200% by 1% along the X and Y axis.
04) AUTOMATIC SELECTION OF NEEDLE BAR
You can select the order of the needle bars up to the 300th bar.
05) GENERAL REPETITION WORK
The same design can be repeated up to 99 times along the X and Y axis.
06) AUTOMATIC OFFSET
The frame automatically returns to the offset point when the embroidery is finished to make it easier for you to
switch the frames. You can select AUTOMATIC OFFSET at PARAMETER SELECT MODE to move the frame
automatically to the desired point, making it easier to do appliques and to switch the frames.
07) MANUAL OFFSET
You can manually move the frame to the pre-selected point to do appliques or change the frames during embroidery
work. The frame can be moved back to its original place by simply pressing the right buttons.
08) RETURN TO START
The frame can be moved back to the start point of the design during the embroidery work.
09) NON-STITCHING
The frame and the needle bar can move back and forth by the units of 1, 100, 1000, and 10000 stitches and by color
without stitching.
10) FRAME REVERSAL
When the thread breaks or runs out of track, you can move the needle bar back to the starting point of the design in
the units of one to ten stitches.
11) AUTOMATIC TRIMMING
The automatic trimming function, determined by the design and the machine set-up, enhances work productivity and
quality of the finished product.
FUNCTIONS AND FEATURES
CHAPTER 4
4-2
12) AUTOMATIC DETECTION OF UPPER AND LOWER THREAD BREAKS
① Spring Type
① The upper and the lower threads are detected by two separate devices. The machine stops automatically when the
upper thread breaks or the lower thread is out of the needle (lower thread detector is optional for all machines
except for single-head).
② Wheel Type
② Wheel and wheel sensor board are installed in the tension adjustment board to detect both the upper and the lower
threads. The machine stops automatically when the upper thread breaks or the lower thread is out of the needle.
13) AUTOMATIC RETURN TO STOP POINT IN UNEXPECTED BLACKOUT
When the power fails unexpectedly, the frame moves back to the exact point where the stitching stopped. This helps
reduce the number of defects.
14) 3.5”FLOPPY DRIVE (EMBEDDED)
A 3.5”floppy drive is embedded in the operation panel for you to read or store designs. Both 2DD and 2HD disks
can be used.
15) EDITING
You can delete, change, or insert stitch data and function codes (jump, finish, trimming).
16) AUTOMATIC STORAGE OF DESIGN SET-UP
The machine automatically stores “basic set-up”for each design and calls the set-ups when a specific design is
called. This reduces your preparation time.
17) INDIVIDUAL HEAD OPERATION
You can work on the specific head with a broken thread.
18) MACHINE STOPPAGE
The screen will indicate why the machine has stopped.
19) RPM
The screen indicates rpm.
20) FRAME SPEED SET-UP
You can adjust the frame speed to high, medium, or low.
21) UNUSED MEMORY
The screen indicates the memory available for use.
22) TAPE CODE COMPATIBILITY
2-binary and 3-binary tape codes can be edited.
23) CODES FROM OTHER BRANDS
The machine can automatically read designs of various formats stored in the floppy disk. These formats include
SST/ DST, DSB, DSZ/ TAP/ FMC, FDR/ ZSK/ 10O/ EXP.
5-1
FUNCTIONS FOR BASIC MACHINE OPERATION
CHAPTER 5
5-1) LAMP ON THREAD TENSION ADJUSTMENT BOARD
1) Switch
① For normal operation, turn the toggle switch on to turn on the indicator lamp.
② If the machine stopped after detecting a thread break, move the frame back to the location of the thread break
using STOP button and restart the machine to pick up stitching (design edit).
③ To set the needle bar so a specific head does not work, turn the toggle switch off.
2) Thread Break Detector Lamp
Lamp on a specific head will blink when thread break is detected at the head, while lamps on other heads will be
turned off. You cannot turn the lamp on or off on the other heads using the toggle switch.
[Fig.5-1]
[CAUTION 2]
Foreign substances around the thread detector roller may block smooth rotation of the roller and
cause wrong detection of thread break.
[CAUTION 1]
The take-up lever continues to operate even when the head is turned off. This movement can cause
the upper thread to come out of the holder. Use a rubber magnet to fix the unused upper thread.
[NOTE]
If you want to move the frame back for any reason when a thread break has NOT occurred, press
the toggle twice (OFF and ON again).
ON
Thread detection
delete
Lamp
Toggle switch
ON
Thread sensor roller
OFF
OFF
5-2
3) Deletion of Thread-Break Detection Function
Poor function of the thread detecting roller due to foreign substances around it may result in wrong and frequent
detections, causing inefficiency of work. In this case, you can turn off the detecting function by turning off the
toggle switch at the end of the thread tension adjustment board. This will turn off the detecting function on the
head you are working with.
5-2) NEEDLE STOP CLUTCH
As illustrated in [Fig.5-2], the needle bar will not move when you pull the jump clutch lever. Push the level to the
opposite direction of the operator to do move needle bar up and down.
Jump manual clutch lever
[Fig.5-2]
CAUTION
The trimmer and the take-up lever continue to move even when the needle bar is
stopped by the clutch. Avoid any operations, i.e. threading the needle or changing
thread.
Long-time operation of the needle bar with the clutch may damage the bar controller.
5-3
5-3) LAMP ON COLOR CHANGE BOX
Needle position lamp on the color change box blinks at the needle bar currently in operation. Needle set lamp blinks
when the needle reaches the center of the needle hole on the plate (roller is positioned at the straight line of the color
change cam) (see [Fig.5-3] on relationship between the lamp and the line of the color change cam). The needle bar
moves when both the needle position lamp and the needle set lamp blink, preventing machine damage from incorrect
needle position or color change malfunction.
(SWF/E-UH1508)
[Fig.5-3]
[Fig.5-4]
[NOTE]
Adjust the half-turn film if either of the lamps is off (see 11-8. ADJUSTING HALF-TURN FILM FOR COLOR
CHANGE).
Color change motor
Needle set lamp
Needle position lamp
Needle bar
Roller
Needle position lamp
relationship between the lamp and
the line of the color change cam
Needle set lamp
ON
ON
OFF
ON
OFF
ON
OFF
ON
Head
Half-turn film cover
5-4) UPPER THREADING AND TENSION ADJUSTMENT
1) Upper Threading
5-4
[NOTE]
Do not stand on the table when threading the upper thread stand. The table may be damaged.
Upper thread
stand
Upper thread
(from the upper
thread stand)
Sub thread
adjuster
Thread tension
adjustment board
Thread detecting
roller
Thread detecting
board
Rotary tension disk
Main thread
tension adjuster
Upper thread guide
Thread guide
(upper)
Take-up lever
Thread guide
(middle)
Presser foot
Needle
[Fig.5-5]
Take-up lever spring
Upper thread
holder
5-5
Adjusting nut
Sub-tension
adjuster
Main
tension
adjuster
2) Upper Thread Tension Adjustment
① The upper thread tension is controlled by the
sub and main thread tension adjusters. Turn
clockwise to increase the tension and counterclockwise to decrease the tension.
② The sub-tension adjusters should control about
2/3 of the thread tension while the main adjuster
should handle the other 1/3. Set the sub-tension
adjuster so the upper thread flows smoothly
through the rotary tension disks and into the
rollers of the main tension adjuster.
[CAUTION]
If tension at the sub adjuster is too loose,
the detector roller may not rotate well and
make wrong detections.
After adjusting the tension, check if the
upper thread tension is what can be pulled
with little force of around 100-120g.
[CAUTION]
After adjusting the tension, pull the upper
thread to see if the detector roller rotates
well.
Adjust the tension according to the type of
thread and fabric used.
Thread tension adjustment is critical for producing high quality of the embroidery. A balance of 2/3 upper
thread and 1/3 lower thread generally indicates good tension. If the tension is too loose, the upper thread
will loop, causing thread tangles or breaks. If the tension is too tight, puckering may occur as well as
thread and needle breaks.
[Fig.5-6]
[Fig.5-7]
Thread Guide Disk
(Pass through the
middle of shaft)
Rotary Tension Disk
Thread holder
spring
Thread guide
(lower)
Threading the sub
tension adjuster
Threading the main
tension adjuster
Threading the thread
detector roller
Threading around the
needle
Wrap the thread 1.5 times
around the rotary tension
disk (V-shaped groove.)
Wrap the thread
clockwise around the
thread guide disk.
Wrap the thread around
the detector roller one
time.
Fix the upper thread
between the thread
holder spring of the lower
thread guide.
Thread Sensing
Roller
One turn
One and
half turn
5-6
3) Take-Up Spring
[CAUTION 2]
After adjusting the operating capacity of the
take-up spring, check if the spring connects
with the stopper.
① Take-up Spring Functions
Difference in the length of the upper thread pulled by the take-up lever and pulled by the hook creates tension
or looping. When the tension is too weak, the take-up spring handles the leftover length of the upper thread.
Increase the tension or the stroke of the spring to form tight stitches on the embroidery.
② Take-up Spring Adjustment
ⓐ If the spring tension is too weak:
Turn the tension adjusting stud clockwise to
increase the tension.
ⓑ If the spring tension is too tight:
Turn the tension adjusting stud counter-clockwise to
decrease the tension.
③ Adjusting stroke of the take-up spring:
To adjust the stroke of the spring during embroidery
work, move the take-up spring stopper to right or
left as shown in [Fig.5-9].
Stopper
Thread
tension
adjusting
stud
CORRECT
WRONG
Take-up spring
[Fig.5-9]
[Fig.5-8]
Take-up spring unable to connect with the stopper
(due to dust or foreign substances in the stopper.)
Connect between the take-up spring and the stopper.
[CAUTION 1]
Keep the area clean for connection between
the spring and the stopper.
5-7
[Fig.5-10]
[Fig.5-11]
5-5) LOWER (BOBBIN) THREADING AND
TENSION ADJUSTMENT
1) Lower Threading
① Use cotton yarn (#80－#120) for your lower thread.
② Threading the bobbin:
ⓐ Insert the threaded bobbin into the bobbin case with
the thread coming out from the case slot. Pull the
thread through the thread guide. Check if the bobbin
is rotating ([Fig.5-10]).
ⓑ Thread the lower thread holder and trim the thread
to 3-4cm before inserting the bobbin and the case
into the hook assembly. Long tail can cause the
thread to tangle during stitching.
2) Lower Thread Tension Adjustment
Adjust the tension of the lower thread using the nut on the
tension spring on the bobbin case. Turn the nut clockwise
to increase the tension and counterclockwise to decrease
the tension.
[CAUTION 1]
Direction of the Bobbin Rotation
Make sure that the bobbin rotates clockwise
when you pull the thread holding the bobbin case
in your left hand([Fig 5-10]).
[CAUTION 2]
For adequate bobbin thread tension, hold a thread
from the bobbin and jiggle the bobbin case lightly up
and down([Fig 5-11]). The case should drop and the
tension should be 25-35g.
Lower thread
holder
Bobbin
Slot
3~4 cm
Screw
Tension spring
Bobbin case
Driver
Thread guide
5-8
5-6) THREAD WINDER
1) Lower thread winding
① Insert the bobbin into the thread winder shaft as in [Fig. 5-12]. Wind the bobbin 5-6 times by hand in the
thread winding direction. Then press the start button, and the thread winding begins.
② If the thread winding status is poor, press the stop button. Then the winding stops immediately.
2) Adjustment of bobbin thread volume
① When winding thread around the bobbin, the thread volume should be some 80% of the bobbin size in terms of
diameter as in [Fig. 5-13].
② Bobbin thread volume is adjusted by the thread
winder knob. When the knob is turned clockwise,
the bobbin thread gets thicker. When the knob is
turned counter-clockwise, the bobbin thread gets
thinner.
[Fig.5-12]
min
TIMER
START
STOP
max
Knob
Tension adjusting holder
Tightening screw for the tension adjusting holder
Bobbin axis
Bobbin
Thread tension adjusting nut
[Fig.5-13]
[Fig.5-14]
80%
Decrease
Increase
Knob
[CAUTION]
1. If the bobbin thread volume is too high, the
lower thread is not properly released.
2. When the lower thread is wound by 80% of
the standard bobbin size, it means some 80m.
5-9
[Fig.5-16]
[CAUTION 1]
Winding the bobbin off-center or uneven as shown below can cause thread breaks, skipped stitches,
or thread tangles.
[CAUTION 2]
Too tight tension of the bobbin thread may block smooth pulling of the thread and cause thread breaks or
short tails.
3) Adjustment of bobbin thread status
① The thread should be wound around the bobbin in
parallel. Otherwise, loosen the tightening screw
for the thread winder's tension adjusting holder
and move the thread guide body left or right for
adjustment.
② The tightening level of the bobbin thread can be
adjusted with the tension adjusting nut.
[Fig.5-15]
Thread tension
adjusting nut
Tension adjusting holder
Tightening screw for the tension
adjusting holder
5-10
5-7) Precautions in using floppy disks or USB memory sticks
Make sure to meet the following conditions when using the above devices.
▶ When using floppy disks
– Keep the disks away from objects with magnetic fields, i.e. televisions, radios.
– Protect the disks from excess heat, humidity, and direct sunlight.
– Do not place heavy objects on the disks.
– Do not remove the disk from the drive while formatting, reading, or writing the disk.
– Do not open the cover of the disk drive.
– Data cannot be written onto the write-protected disks.
– Repetitious reading and writing on a single disk may cause errors.
– Save your important data on more than one disk for back up.
▶ When using USB memory sticks
– Do not delete USB memory from the USB port when reading and writing with USB.
CAUTION
1) You can use pre-formatted disks, but be sure to use disks of recognized quality.
2) You can use USB memory sticks of FAT 16 (file system). The machine does not
accommodate FAT 32.
5-8) Inserting floppy disks and USB memory
sticks
– Inserting floppy disks
Insert the disk in the indicated direction.
– Inserting USB memory sticks
Insert the USB memory into the USB port.
[Fig.5-17]
Floppy disk
USB memory
5-11
5-9) Deleting floppy disks and USB memory stick
– To take out the disk from the floppy drive, press the OUT button.
– For USB, close the input/output window and delete the USB memory.
5-10) Reading and writing of embroidery designs
You can use external devices, such as floppy disks, USB memory, CF cards, and serial port to read designs into
the operation box. For writing the designs onto floppy disks and USB memory sticks are available.
CAUTION
Be careful not to remove the floppy disk from the drive when formatting, reading, or writing in
order to prevent loss of data.
5-11) RETURN TO PREVIOUS LOCATION IN UNEXPECTED BLACKOUTS
Your SWF machine goes back to the location of stop to pick up stitching when the power comes back on after
unexpected blackouts.
[CAUTION]
Make sure to turn OFF the power in unexpected blackouts until the power comes back on.
5-12
5-12) NEEDLE-HOOK TIMING CONTROL
1) Needle
① It is very important to select the right needle for the type of thread and fabric used.
② Inappropriate needle may cause bad embroidery, thread breaks, skipped stitches, etc.
③ For normal embroidery, use a DB×K5 needle.
2) Relationship between Needle and Thread
① Inadequate selection of thread and needle may result in thread breaks, skipped stitches, as well as in bad-
quality embroidery.
② Refer to the following table of threads and needles used for normal embroidery.
3) Changing the Needle
① Make sure the needle is completely clear of the needle plate before attempting to change it. If the needle is not
clear of the plate, manually turn the main shaft with a hand lever to put the needle in the right location for
change.
[CAUTION]
Needle and thread most commonly used in embroidery are DB K5 #11 and rayon yarn 120d/2.
[Fig.5-18]
NEEDLE SIZE
THREAD SIZE
US
0.25
0.27
0.29
0.32
0.34
0.36
Japan
9
10
11
12
13
14
Germany
Cotton Silk
100~120
80~100
60~70
Nylon
130~150
100~130
80~100
Rayon
70~100
100~130
70~80
Needle
Needle plate
50~60
50~60
65
70
75
80
85
90
130~150
CAUTION
[CAUTION]
DB K5 needle has an eye twice larger than that of DB1 (used for normal sewing). Use DB X K5 for
normal embroidery.
STOP the machine before
turning the shaft manually.
Immediately remove the lever
afterward: it is dangerous to
operate the machine with the
lever inserted.
Main shaft
lever
5-13
② When inserting the needle, make sure that the groove
of the needle is facing front. Shaft of the needle should
be inserted completely into the needle bar.
[CAUTION 1]
For special threads such as artificial silk, turn the
needle slightly to the right to prevent thread breaks
(see [Fig.5-20]).
[CAUTION 2]
If the needle is not inserted all the way to the top of the needle bar hole, timing of the machine will go
off, causing broken needles and thread breaks.
[Fig.5-19]
[Fig.5-20]
Needle insert hole
Front groove of the
needle groove
5-14
4) Relationship between Needle and Hook
① Adjusting Timing between Needle and Hook
Default timing of the needle and the hook is set by the main shaft angle of 200° and varies as below.
② Adjusting Gap between Needle and Hook Point
• Gap between the hook point and the scarf of the needle
should be 0.1∼0.3 mm minimum.
• Thread skip occurs due to thread looping or inadequate
balance/gap between the needle and the hook. The closer
the hook point is to the needle, the hook point will be
inside the loop and threading will be more stable.
[Fig.5-21]
[Fig.5-23]
Hook point
0.1~0.3mm
[Fig.5-22]
Top point of hook
circumference
Top edge of
needle eye
Needle tip
Top edge of the needle eye
Hook allowance
(gap)
Hook point
Lower dead stop
of the needle
Hook point
a. At lower dead stop of the needle bar
2.3
3.7 mm
1.8
2.2 mm
0.5
1.5 mm
The figures may change according
to needle specification/number.
b. At needle-hook timing
c. At needle-hook timing
[CAUTION]
The hook can move right and left if there is an allowance in
the lower shaft gear. Eliminate the allowance (gap) by
turning the hook clockwise. Then adjust the timing.
5-15
[Fig.5-24]
[Fig.5-25]
Back groove
Needle eye
Front groove
[CAUTION]
Functions by Needle Shape
① Size of the hole and groove differs by needle.
• Front groove: protects the thread from the heat of the
sewing friction (which may cause thread breaks).
• Back groove: helps regulate the hook timing and
prevents looping.
Prevention of looping is important for stitching. Adjust the hook point as close to the needle as possible to achieve
the perfect thread position.
② If thread breaks or stitches are unstable, turn the needle slightly
to the right.
[NOTE]
Shape of the loop varies by the type of thread or fabric. Unstable shape of the loop may result in skipped
stitches. The following pictures show different shapes of loop formed by different types of thread.
Hook point
Cotton thread loop
Synthetic thread loop
Hook point
[Fig.5-26]
5-16
5) Relationship between the Take-up Lever and the Hook
Hook point timing is directly related to thread tension and thread breaks. The following pictures show the location
of hook when the take-up lever starts to move up from the lower dead stop (main shaft rotation angle: 292°).
[CAUTION]
In normal hook timing, the hook should be in the (C) range in the picture below.
FAST HOOK TIMING
SLOW HOOK TIMING
[Fig.5-27]
too small
too large
[Fig.5-28]
[Fig.5-29]
(B)
(C)
(A)
Groove of the hook is in the (A) range. The
hook point will take up the thread when the loop
is too small. Stitching will be faster than the
take-up movement. As a result, the thread
tension will be too loose, upper thread loop will
be too small, and skipped stitches will occur.
Groove of the hook is in the (B) range. The hook
point will take up the thread when the loop is too
large, so there may not be skipped stitches.
However, the take-up movement will be faster
than the stitching and thread breaks may occur.
5-17
5-13) ASSEMBLY AND FUNCTIONS OF THREAD DETECTOR
5-13-1) Functions of Thread Detector
Detection of the breaks of upper or lower threads prevents ill quality embroidery. The thread- break detector unit
contains rollers that sense the smooth feeding of the thread. Any dust, thread remnants, etc. will interfere the
rollers’rotation and may cause wrong detection.
5-13-2) Disassembling Thread Detector
You will need to disassemble the thread-break detector unit to clean. Remove the cover of the thread tension
adjusting plate, separate the cables and unfasten the roller base joint screw. The entire unit will be disassembled
including the rollers and bush bearing.
[CAUTION]
Make sure to correctly place the thread detecting roller to have the unit properly function. Check
between the sensor groove and the film. If needed, unfasten the board base screw to adjust the board.
Roller base screw
Thread detector roller
Bush bearing
Roller base
Film
[Fig.5-30]
6-1
MAINTENANCE AND INSPECTION
CHAPTER 6
6-1) CHECK POINTS FOR REGULAR INSPECTION
① Clean, oil, and grease the set parts of the machine on a regular basis.
② Inspect tension of each driver belt.
③ Failure to perform regular inspections may cause the following:
• Corrosion of P/C circuit board
• Damage to the semi-conductor on P/C circuit board
• Malfunction of the floppy disk drive
• Ill connection of the connector
• Abnormal wear-out of machine parts due to insufficient oiling and greasing
6-2) CLEANING
Consumable parts shall not be guaranteed even in warranty period.
CAUTION
Safety rules must be observed during the inspection.
Turn OFF the main power before inspecting or cleaning of the following parts.
Clean your machine according to the usage condition and surounding
environment
CAUTION
Sun Star is not responsible for machine damages or malfunctions caused by insufficient
cleaning or oiling.
CAUTION
1
2
3
①
②
③
Reference Fig.
NO
Important Parts for Cleaning
Cleaning cycle
Every day
Once a week
[How to Clean]
Remove the needle plate and pull the
movable blade forward (see picture).
Use the SWF brush to remove dirt and dust.
Around the hook
Guide rail to the take-up lever
Around the movable blade and the fixed blade
Once in 3-7 days
6-2
[Fig.6-1]
Hook
Guide rail to the
take-up lever
Movable
blade
Fixed
blade
6-3
[Fig.6-2]
5
6
6-3) OIL SUPPLY
1) Oil supply
Use the SWF sewing machine oil (Spindle Oil) or ISO-standard VG18.
2) Manual oil supply
[CAUTION]
1. Excess oil may stain the thread and the fabric.
2. Run the machine without stitching for 2-3 minutes after oiling.
3. Excessive oiling in the hook may cause trimming problems and thread breaks.
1
2
3
Take the bobbin case out of the hook. Feed small
amount of oil on the raceway.
Needle bar and needle bar shaft
Inside the arm
3-4 times a day
,
Once a week
Once a week
4
Guide rail to the take-up lever
3 oil holes on the bed cover
Juncture of the movable blade and the fixed blade in
the trimming unit
Once a week
Once in 3 days
Once in 2-3 weeks
Where to Oil Oiling cycle
Ref. Fig.
No.
CAUTION
Make sure to turn the power OFF during oil supply.
Over twice a day for the first
month
CAUTION
Sun Star is not responsible for machine damages or wear-outs caused by insufficient oiling.
Bed
Head
Arm
Oil hole
Hook
Raceway
Bobbin case
6-4
3) Oiling
① Cored drip-feed lubrication [Standard Type]
㉠ Location and Cycle of Oiling
[CAUTION]
• Use the SWF sewing machine oil (Spindle Oil) or ISO-standard VG18.
• Oil just enough to damp the tape in the oil tank.
[Fig.6-3]
1
Once in 2 days
Where to oil
Oiling cycle
No.
Inside arm
a. driver pin of take-up lever
b. driver pin of presser foot
c. driver shaft of needle bar
6-5
[CAUTION]
• Use the SWF sewing machine oil (Spindle Oil) or ISO-standard VG18.
• Make sure to fill the oil tank to the middle point between HIGH and LOW.
• Do not oil with both of the and levers open.
② Oiling via Pump [Option Type]
㉠ Location and Cycle of Oiling
[Fig.6-4]
2
1
Inside arm
a. driver pin of take-up lever
b. driver pin of presser foot
c. driver shaft of needle bar
Needle bar
Twice a day
Where to oil
Oiling cycle Reference Fig.
No.
CLOSE
OPEN
Oiling lever
Oil
tank
Oil tank
cover
6-6
Use high-quality mineral-based lithium grease.
Places for supplying synthetic TM grease
[CAUTION]
Regular greasing prevents machine noise and abnormal wear-out.
③ Grease supply
[Fig.6-5]
Make sure to turn OFF the main power during the grease supply.
CAUTION
Trimming cam driver box
Arm
Head
1
2
3
4
Inside the arm
Take-up lever drive cam
Needle bar drive cam
Needle bar controller
Driving plate for the upper thread holder
Hook gear and lower gear in the rotary hook base
Once in 3 months
Gears in the blade cam and trimming cam box
Once in 3 months
Once in 3 months
Once in 3 months
Once in 1 months
Where to Grease
Greasing cycle Reference Fig.
NO
1
2
Color change cam, color change head roller
Hinge screw
Once in 1 months
Once in 3 months
Where to Grease
Greasing cycle Reference Fig.
NO
6-7
Use lithium-type grease (JIS No.2) - Albania No.2.
[CATUION]
Do NOT grease the parts not indicated (needle bar, hook, etc.)
[Fig.6-6]
1
2
3
4
X-axis LM guide (2 on each side)
Y-axis LM guide (2 on each side)
Sub Y drive LM guide (1 on one side)
Head drive LM guide
Once in 2 months
Once in 2 months
Once in 2 months
Once in 2 months
Where to Grease
Greasing cycle
Reference Fig.
NO
Turn OFF the main power during the grease supply.
CAUTION
Timing belt
grease hole
Timing belt
grease hole
grease hole
2 sides
LM Guide Rall
X-axis
Bed #2
X-axis LM guide (4 spots)
Y-axis LM guide (4 spots)
Sub Y drive LM guide (1 spots)
Head drive LM guide (upper cover opened)
Where to grease
Where to
grease
Where
to
grease
6-8
6-4) DRIVE BELT TENSION
Too weak or too tight tension on the drive belt may cause machine malfunction or damages (abnormal wear-out of
drive unit). Inspect the driver belt on a regular basis.
[CAUTION]
Inspect the tension in the direction of the arrows in the picture below.
[Fig.6-7]
Location for inspection
Belt on main shaft
motor
Belt on main shaft
motor
Others
Inspection cycle
Once in 3
months
Once in 3
months
Once in 3
months
Reference
check belt tension
check for belt crack
check for belt wear-out
check for bearing damage
check for wear-outs of rotating & sliding parts
NO
CAUTION
Turn OFF the main power when inspecting drive belt tension.
1
2
3
Idler
X frame plate
Driven pulley
Tension adjusting screw
Tension base screw
LM block plate screw
Tension adjusting screw
LA block plate
X-drive motor
7-1
MACHINE ADJUSTMENTS
CHAPTER 7
7-1) ADJUSTING THE TRIMMERS
7-1-1) Adjusting the Position of the Trimming Cam (Insert Angle of Movable Blade)
The movable blade is started by the trimmer cam in the angle it is inserted. As one of the basic trimming
functions, it arranges the upper thread tails in the needle after trimming.
1) Adjusting the position of the movable blade
① Check if the movable blade is in the correct
position.
② Cutting point of the movable blade should be
inserted 1mm at the end of the fixed blade.
Incorrect position of the movable blade can
cause trimming errors or deviation of the upper
thread.
③ Unfasten the crank screw to adjust the location
of the movable blade (see [Fig.7-1]).
2) Adjusting the angle of the movable blade
① Unfasten two screws on the blade cam. Adjust
the upper shaft rotary angle at 290°.
② Insert the trimming cam roller into the trimming
cam. Turn the cam and when the roller aligns
with the curve of the cam, fasten the two screws
back.
③ Run the manual handle and check if the movable
blade is well-inserted at 290°. Always check
after the adjustment.
[Fig.7-1]
WARNING
Turn OFF the main power when adjusting the machine.
app.
1mm
Screw
Trimming
drive crank
Blade cam
Roller
Roller
Direction of
cam
movement
[Fig.7-2]
7-2
7-1-2) Adjusting Blade Tension
Make sure to check and adjust the cross-tension of the movable and the fixed blades after replacement or repair.
① Checking the cross tension
Manually move the movable blade and cut the upper
and the lower threads. Check the cross-section of the
thread cut.
② Adjusting the cross tension
Adjust the cross tension using fixed blade tension
control screws (see [Fig.7-3]). Manually move the
movable blade and adjust that it crosses in parallel with
the cutting line of the fixed blade from its entry point
to its return point.
[NOTE]
Avoid excess cross-tension. It may cause the movable blade to wear out from overload at its entry or
return point.
[Fig.7-3]
[Fig.7-4]
Movable blade
Tension
control
screw
Fixed blade
Sensor
Sensor screw
Sensor
2mm
1mm
7-2) ADJUSTING THE TRIMMER RETURN
SPRING
1) Function
The trimmer return spring detects if the movable blade
returns to the correct position after trimming. If the
machine operates without the blade returned to its correct
position, the needle and the blade may be damaged. The
trimmer return spring detects and stops the machine if the
blade has not returned.
2) Adjustment
① Unfasten the spring shaft screw so that the center of the
spring hole is around 2mm away from the surface to
which the screw is attached (see [Fig.7-4]). Save the
location of the spring. Turn the spring holder #1 to
adjust the tension of the return spring and refasten the
screw.
② Adjust the return spring so that the surface and the
spring are around 1mm apart.
7-3
7-3) ADJUSTING UPPER THREAD HOLDING UNIT
1) Checking the assembly of upper thread holding lever and upper thread holder plate
① Stroke of the upper thread holder driver plate in the upper thread holder base should be 1mm from the base
when the upper thread holding solenoid is on.
② If the space is shorter than 1mm, adjust the position of the upper thread holding solenoid up and down so
that the stroke of the plate is 1mm.
③ If the solenoid is not adjusted with the above measure, you must adjust the position of the upper thread
holding lever.
④ To adjust the upper thread holding lever, remove the arm protection plate from the arm. Adjust the upper
thread holding solenoid over the center, and unscrew the lever. Support the arm protection plate with a flat
plate so the lever touches the flat plate. Fasten the screw of the upper thread holding lever. Make sure that
the upper thread holding lever is touching the axis of the upper thread holding solenoid.
⑤ Check if the lever moves smoothly left and right when you manually operate it.
⑥ Install the arm protection plate and go through ① and ② to complete.
[CAUTION]
If the upper thread holding unit does not function well, check if the upper thread holder driver plate of the unit
moves smoothly when you manually move it. If not, adjust the position of the upper thread holding base.
[Fig.7-5]
Upper thread holding solenoid
Upper thread holding lever
Arm protection
(right)
Upper thread holding lever screw
1mm
Upper thread holder base
Upper thread holder
driver plate
7-4
7-4) PICKER ADJUSTMENT
If the position or the starting height of the picker is incorrect, the machine may not be able to separate the upper
and the lower thread and cut them both, resulting in short upper thread.
① Adjusting the picker position
Manually move the picker so it touches the bobbin. Using the picker screws, adjust so the tip of the picker is
in the correct position as in [Fig.7-5].
② Adjusting the starting height
Loosen the screw for the picker stopper and adjust the picker to be 0.2~0.5mm apart from the bobbin when the
picker is pressed. Make left and right adjustments for the picker stopper. When all the adjustments are done,
tighten the screw for the picker stopper.
③ Adjusting picker standby position
Unfasten the screws on the picker solenoid cover. Adjust the position of the solenoid cover so that the tip of
the picker is around 20mm away from the bobbin.
Picker screw
Correct position
of the picker
Picker
Bobbin case
[Fig.7-6]
Picker
Screws on the picker solenoid cover
Picker solenoid
[Fig.7-7]
[Fig.7-8]
Picker stopper
[CAUTION]
After adjusting the picker standby position, check if the bobbin case moves smoothly.
7-5
7-5) ADJUSTING UPPER THREAD
HOLDER
① Adjusting the sensor springs (when wiper
does not return)
Ⓐ Open the wiper motor cover. Of the two
sensor rings, align the center of the rear
sensor spring with #1 carve on the block
on the shaft. Align the center of the front
sensor spring with #2 carve on the block.
Ⓑ Adjust so that the head of the sensor
spring is 1-1.2 mm apart from the wiper
return sensor. Make sure to check if the
wiper return sensor blinks.
[Fig.7-9]
② If the wiper does not operate smoothly, unfasten the screws on the drive link. Move the wiper lever up and down
and unfasten the bracket screws so the wiper is not loaded by the upper thread holder bracket. Fasten the screws
back when the wiper moves smoothly.
③ After the adjustment, run the color change function to check if the wiper operates well at each needle bar.
④ If trimming error or jump error occurs on a certain head during the embroidery, run the wiper clutch to protect the
embroidery and the wiper.
• Press and turn the wiper clutch counterclockwise to run it. Turn it clockwise to stop.
[Fig.7-11]
Wiper return sensor
Rear sensor spring
Front sensor spring
#2 carve
#1 carve
Sensor
adjustment ring
Cam block
[Fig.7-10]
Upper thread holding bracket
Bracket screw
Driver ring crank
Wiper clutch
7-6
7-6) ADJUSTING LOW-NOISE PRESSER FOOT
1) Assembly of Presser Foot Cam
① Set the main shaft at 178° and install two reference pins (ф3) into the assembly hole of the presser foot
driver cam (ф3) as shown in [Fig.7-12]. Insert the pins then into the assembly hole of the take-up lever
driver cam.
② Adjust the presser foot driver cam to where the reference pins freely move left and right. Fix the three
screws (M4×L35).
[CAUTION]
1. The assembly pin should smoothly move right and left with the three screws fastened.
2. The assembly unit and the assembly pin are not for commercial sale.
3. Contact your SWF dealer if you must adjust the location of the cam.
[Fig.11-12]
Reference pins ( 3)
Hole ( 3)
Presser foot
drive cam
Take-up lever
drive cam
7-7
2) Adjusting the Height of the Presser Foot
① Check the relationship between the presser foot
and the needle/embroidery material. Turn the
main shaft lever to position the needle at the
lowest point (178°). Remove the head cover and
unfasten the screws on the presser foot so it
moves up and down. Place a 1mm-thick gauge
on the needle plat and lightly press the presser
foot. Fasten the screws snugly when the presser
foot touches the gauge.
7-7) Relationship between Presser Foot and
Needle
1) Relationship between Presser Foot, Needle, and
Embroidery Material
For stable stitching, the presser foot must be
pressing the embroidery material before the needle
pierces into the material. The same is true for when
the needle comes out of the material.
2) When the Presser Foot is Too High
① Needle In
[Fig.7-15] shows the presser foot fails to press
the work material when the needle pierces into
the fabric, causing an unstable needlework.
② Needle Out
[Fig.7-16] shows the presser foot fails to press the work material when the needle comes out of the fabric.
The embroidery material is lifted up along with the needle, making a gap between the fabric and the needle
plate. This may cause thread breaks, skipped stitches, or unstable stitching.
[Fig.7-13]
Presser foot
holder
Presser foot
Needle plate
Screw
1mm
[Fig.7-14]
Presser foot
Needle plate
Embroidery
material
Needle
out
Needle in
[Fig.7-16]
Needle Out
[Fig.7-15]
Needle In
7-8
7-8) CORRECT POSITION OF NEEDLE
① Make sure to check the position of the needle - it may change during machine delivery or leveling. First check
if the needle is bent. Then turn the main shaft lever to set the shaft at around 130°. Position the needle at the
lower dead stop and check if the needle is at the center of the needle hole on the plate.
② If the needle is not in the correct position, unscrew the brackets (two screws) to adjust the head and the needle
(see [Fig.7-17]).
[Fig.7-17]
L-wrench
Bracket screws
Head
Needle plate
Needle plate
[CAUTION]
Check the needle position on all heads.
7-9
7-9) ADJUSTING HALF-TURN FILM FOR COLOR CHANGE
① (For automatic color change) If the needle is not at the center of the needle hole on the plate, turn the lever and
adjust so that the roller is on the center of the color change cam on the straight line. Open the cover of the halfturn sensor and align the center of the half-turn sensor with the center of the film (see [Fig.7-18(a)]).
② For SWF/E-UH1508-45, the machine will stop automatically if any of the needle setting lamp or needle position lamp
blinks. In this case, use a box spanner to adjust the position of the color change cam so the roller is at the center of the
cam on the straight line (when the needle is at the center of the needle hole on the plate). Open the cover of the halfturn film and align the center of the half-turn sensor with the center of the film (see [Fig.7-18(b)]).
[CAUTION]
Manual color change must be performed at the upper shaft angle of 100°.
Manual color change at the upper shaft angles other than 100°may cause damage on the controller
and the take-up unit.
[Fig.7-18]
Roller
Half-turn sensor
Half-turn
sensor
(a) (b)
Color change cam
Color change
cam
Film screw
Half-turn
film
Half-turn
film cover
Half-turn
sensor
Box spanner
7-10
7-10) JUMP MOTOR ADJUSTMENT
Adjustment is required for new or malfunctioning jump motor.
1) Adjusting the Standby Position (adjusting
motor base)
① Unscrew motor base ([Fig.7-19]) and
adjust so that the jump crank roller is
0.3mm away from the controller. Fasten
the screw.
② If the gap is wider than 0.3mm, the
needle may not jump well. If the gap is
narrower than 0.3mm, the jump will
cause noise.
2) Adjusting Jump Manual Clutch
① Jump manual clutch is used to turn the
head off mechanically. If the clutch lever
doesn’t function properly, check the
clutch assembly.
② First, pull the clutch lever forward and
check if the carve on the clutch base is in
line with the center of the clutch pin and
the center of the motor shaft when in
standby (see [Fig.7-20]). If not, unscrew
and adjust the clutch body with the jump
crank roller attached to the stopper.
Fasten the screw back.
③ Pull the clutch lever forward and check if
the clutch body and the stopper are
completely attached. If not, adjust the
stopper to be completely attached to the
body.
[Fig.7-19]
Jump crank roller
Controller
Motor base screw
0.3mm
[Fig.7-20]
Jump
manual
clutch
shaft
Stopper
Clutch
lever
A side
Stopper
Center of motor
Manual clutch
base
Jump
manual
clutch
CAUTION
1. If you will not be using the head with the head ON/OFF switch, make sure to use the jump
manual clutch lever.
2. If the A side of the jump manual clutch does not touch the stopper, when you run the electric
jump you will hear a noise.
7-11
7-11) ADJUSTING DRIVE BELT TENSION
7-11-1) Y-Axis Timing Belt
① Push the X frame plate to the driven pulley ([Fig.7-21]) and check the drive belt tension on the Y-axis. Use the
sound wave tension gauge.
② Tension on the Y-axis belt should measure as below on the sound wave measurer when you pluck the middle of
the belt between the X-Y link bracket and the drive pulley with your finger.
③ Input data for the sound wave tension measurer:
④ Unfasten the tension base screws. Turn the bolts to adjust the tension. Turn clockwise to increase and
counterclockwise to decrease the tension.
[CAUTION]
Specification of Drive Belt Tension Adjuster
Model: U-305 Series Sound Wave Belt Tension Gauge - Standard
Manufacturer: UNITTA
[CAUTION]
Drive belt tension can be adjusted only by trained SWF engineers.
Make sure to turn OFF the machine during the adjustment.
[Fig.7-21]
Tension bolts
X-Y link bracket
Driven pulley
Tension base screw
Weight
Wide
Span
Tension
measurement
4.0gf/m
25.0mm/#R
480mm
18kgf
3.8gf/m
35.0mm/#R
510mm
18kgf
4.0gf/m
25.0mm/#R
900mm
18kgf
3.8gf/m
35.0mm/#R
535mm
25kgf
3.8gf/m
35.0mm/#R
510mm
18kgf
3.8gf/m
35.0mm/#R
924mm
21kgf
3.8gf/m
35.0mm/#R
512mm
21kgf
Type 2-head 4-head
6-head
compact
6-head
2 at both ends,
narrow
2 in the middle,
wide
8-head
2 at both ends,
narrow
2 in the middle,
wide
7-12
7-11-2) X-Axis Timing Belt
① Push the frame plate fully to the right ([Fig.7-22]). Check the drive belt tension on X-axis using the sound
wave tension gauge.
② Tension on the X-axis timing belt should measure as below on the sound wave measurer when you pluck the
middle of the belt with your finger.
③ Input data for the sound wave tension measurer:
7-11-3) Timing Belt on Main Shaft Motor
① Tension on the timing belt of the main shaft motor should measure as below on the sound wave measurer when
you pluck the middle of the belt with your finger.
② Input data for the sound wave tension measurer:
④ Unscrew LM block plate. Turn the tension bolts to
adjust the tension. Turn clockwise to increase and
counterclockwise to decrease the tension.
[Fig.7-23]
[Fig.7-22]
Weight
Type
004.0 gf/m 004.0 gf/m
015.0 mm/#R 015.0 mm/#R
0590 mm 0590 mm
18 Kgf 19 Kgf
Wide
Span
Tension measurement
4-head 6-head & 8-head
LM block
plate screw
Tension bolt
LM block plate
X-drive motor
Idler
Weight
Type
004.0 gf/m 004.0 gf/m
020.0 mm/#R 030.0 mm/#R
0405 mm 0405 mm
18 Kgf 18 Kgf
Wide
Span
tension measurement
4-head 6-head & 8-head
③ Unscrew the idler and adjust it right and left
to get the right tension. Turn the idler left to
increase the tension and right to decrease the
tension.
7-13
7-12) LAMP (OPTIONAL)
7-12-1) Lamp Socket Adjustment (4-head)
Standard lamp for SWF machines measures 580mm in length. If you have to use 590mm lamp for certain
purposes, adjust the lamp in the following order.
① Unfasten the three screws on the socket.
② Push the lamp socket fully to the right of the shell.
③ Install a new lamp and adjust the socket according to the length of the lamp. Fasten the socket screws.
7-12-2) Disassembling Cable Cover (4-head)
If you have to open the cable cover for machine repair, etc., follow the procedures below.
① Slightly unfasten the six screws underneath the lamp bracket.
② Take out the lamp and open the cover. Do repair or other necessary work.
③ When finished, re-assemble the cover, push the lamp forward and fasten the bracket screws.
[Fig.7-25]
[Fig.7-24]
Lamp
Socket
Lamp bracket
Lamp bracket screw
Lamp bracket
slider
Lamp bracket
slider screw
Lamp
Cable cover
8-1
TROUBLESHOOTING
CHAPTER 8
CAUTIONDANGER
Inspect/repair the machine by the guideline when in machine failures.
Error Type Cause
Loose belt tension / belt
damage
Power failure or short-circuit
of fuse
Failure to sense signals for
needle position or 1
rotation
Red light on X/Y drive box
Machine does not start at
START
Loose tension on main
driver belt
Incorrect position of
encoder or bad encoder
Adjust belt tension / change belt
Check fuse in main shaft motor
and change fuse
Run manual color change and
check if signal lamps (needle set
lamp & needle position lamp)
blinks at correct needle position.
Adjust the half-turn film.
Address the cause and press
RESET. Check if the lamp turns
green.
Check connection of START
switch
Adjust belt tension
Adjust encoder position or
change encoder
Inspection & Repair Reference
Operation failure
Incorrect Stop
Position
8-2
Error Type Cause
① Incorrect position of needle
stop
② Failure to sense signals for
needle position or 1 rotation
③ Incorrect position of needle
bar
④ Incorrect position of take-up
lever
⑤ Bad connection
Inspection & Repair
Refer to user’s manual
Run manual color change and
check if signal lamps (needle
set lamp & needle position
lamp) blinks at correct needle
position. Adjust the half-turn
film.
Set it to the correct position
Adjust so take-up lever is in
line with other levers in stop
position (upper shaft
angle:100°)
Change fuse F3 in joint board
or check connection
Set main shaft angle back at
100°, if you manually moved
it for cleaning, inspection or
repair.
※ Adjusting position of
take-up lever
Unscrew the lever and
adjust so it is in line with
other take-up levers on
the guide rail.
Check fuse spec.
Reference
Bad Color
Change
take-up
lever
screw
take-up
lever
8-3
Error Type Cause
Poor connection of takeup spring and thread
detector plate
Poor connection & quality
of tension adjusting plate
Bad Motor and bad motor
wiring
Bad connection
Switch failure on tension
adjusting board and bad
circuit board
Bad tape
Inadequate tension on XY belt
Foreign substance in X-Y
rail
Failure of X/Y driver board
Heavy load on frame
Inspection & Repair
Clean the spring and the plate,
or adjust the spring tension.
Check the plate connection and
change the circuit board
Check wiring and change motor
Check connection
Change switch and circuit board
Correct tape
Adjust tension
Clean the rail
Change circuit board
Reduce speed of main shaft
Reference
Poor detection
of upper thread
Bad jump
Bad stitch
quality
8-4
Error Type Cause
Stitch is too small/dense
for thread
Frequent thread break in
the same spot
Inadequate needle size
for thread
Needle damage (bent,
dent, worn)
Incorrect needle
installation (height,
direction, etc.)
Dirty needle (adhesive,
etc.)
Inspection & Repair
Re-punch design tape
Re-punch after checking
design
Correct the stitches on
operation box
Change needle
Change needle
Re-install needle
Clean or change needle and
hook
Check design
Use minimum adhesive for
applique
Reference
Thread breaks
8-5
Error Type Cause
Bad thread (weak,
uneven thickness, poorly
twisted, old)
Right-twisted thread
Excessive thread tension
Tension imbalance
between upper and lower
threads
Excessive tension &
stroke on take-up spring
Inspection & Repair
Change thread
Change to left-twisted thread
Adjust tension
Adjust tension and stroke
Check the thread used.
How to select thread.
•Select soft thread with
ever thickness and
stable tension.
•Choose left-twisted
thread.
Z-direction: left twist
S-direction: right twist
left-twist prevents
unraveling of the upper
thread in the
counterclockwise rotation
of the hook
Reference
8-6
Error Type Cause
Dent on thread path on
hook and bobbin case
Narrow space between
hook holder and groove
for hook holder (on hook)
Insufficient oil in hook
Poor timing of needle and
hook
Incorrect lower dead stop
Dent on thread path
Fabric moves on the
frame
Inadequate height of
presser foot
(does not press the work
material)
Inspection & Repair
Remove dent or change the
case
Adjust space
Oil the raceway of hook
Adjust timing
Adjust the lower dead stop
Check:
•Thread path in presser foot
•Around needle hole on
needle plate
•Thread guide on the head
•Thread path in tension
adjuster
Fix the material firmly
Adjust height
Set it at 0.5-0.7mm for
smooth feeding of upper
thread
Reference
8-7
Error Type Cause
Bent needle
Inadequate needle size
for thread
Incorrect installation of
needle
Poor timing of needle and
hook
Large gap between
needle groove and hook
point
Incorrect lower dead stop
Damaged hook point
Thread feeding is
interfered
Inadequate thread
(twist, elasticity, and
flexibility)
Excessive tension or
stroke on the take-up
lever spring
Fabric moves with needle
- weak or damaged
presser foot (spring)
Inspection & Repair
Change needle
Adjust installation
Adjust timing
Adjust the lower dead stop
Use whetstone to adjust hook
point or change hook
Adjust thread tension
For upper thread, change
bobbin or bobbin case
Select right thread for
embroidery
Adjust stroke or tension
Change presser foot spring
Reference
Skipped
Stitches
8-8
Error Type Cause
Weak upper thread
tension
Uneven upper thread
tension due to foreign
substances
Weak lower thread
tension
Uneven lower thread
tension
Thread thickness
Poor timing of needle and
hook
Insufficient oil in hook
Bent needle
Bad quality needle
Tip of the needle is worn
or bent
Needle touches the hook
point
Needle touches the hook
point
Incorrect installation of
needle
Needle touches the
needle hole on the plate
Inspection & Repair
Adjust tension
Clean main and sub tension
adjusters in the thread tension
adjusting plate
Adjust tension
Clean bobbin case and check
tension on bobbin spring
Change to quality thread
Adjust timing
Oil the raceway of hook
Change needle
Space the needle and the hook
point
Correct the installation
Check if needle plate is
unscrewed
Adjust the position of the
needle bar
Reference
Poor stitch
tension
Needle breaks
8-9
Error Type Cause
Excessive thread tension
Excessive pressure of
presser foot
Needle failure worn out/damaged needle
tip needle is too large for
thread
Needle hole is too large
for needle
Poor connection/quality of
trimming solenoid
Bad connection
Trimming driver TR
damaged
Inspection & Repair
Adjust tension
Change presser foot spring
Change needle
Use adequate size of needle
Check and change solenoid and
solenoid connection
Check connection
Change joint board
SWF/ needle holes
are 2.0mm
Reference
Puckering
Trimming failure
8-10
Error Type Cause
Poor connection of sensor
Bad circuit board
Bad sensor or sensor
position.
Dirty area around the
sensor.
Movable blade is too fast
or too slow to separate
the upper thread
Incorrect position of picker
Picker failure
Upper thread is too short
check main and sub
tension adjuster
dent or damage to
movable blade
Lower thread is too short
doesn’t unwind
smoothly
too weak or too elastic
Inspection & Repair
Check connection
Change circuit board
change sensor
clean around the sensor
adjust location of the sensor
unit
Adjust insert angle of movable
blade (295°)
Adjust picker position
Check and change fuse F1, F3
Check/change solenoid and
solenoid connection
Check connection and change
joint board
Adjust upper thread tension
remove dent using whetstone or
sandpaper or change movable
blade
adjust or change bobbin case
spring
clean/check for dent in thread
guide on the bobbin case
Change lower thread
Check fuse spec.
Too short lower thread
cannot make stitches
right after trimming
Reference
Trimmer return
failure
Short upper
thread after
trimming due to
separation
failure
Thread break
before trimming
Check for dent
8-11
Error Type Cause
Upper thread is trimmed
too short and comes
unthreaded
Upper thread is trimmed
too long and thread tail
remains on the embroidery
Failure of movable and
fixed blades
Loose cross tension of the
blades
Movable blade damaged
Incorrect return position of
movable blade
Poor connection/quality of
solenoid
Bad connection
Poor quality circuit board
Short strokes of upper
thread holder
Upper thread holder
overloaded
Cable fuse short-circuit
Circuit fuse short-circuit
Expired lifespan of the
lamp
Inspection & Repair
check upper thread tension
set or length
of trimmed thread in data setup
set or
length of trimmed thread in
data set-up
if upper thread is held due to
narrow velcro space in upper
thread holder, clean the
velcro
Check screws and crank driver
clamp screws of the movable
blade
Check tension of fixed blade
Change movable blade
Adjust the position of movable
blade
Check/change solenoid &
connection
Check connection
Change thread detecting plate
in sub controller
Adjust stroke
Adjust the workload
Replace the cable fuse
Replace the con. box lamp
ass’y fuse
Replace the fluorescent lamp
ShortMedium
MediumLong
The default is .
Change fuse spec
Change fuse spec
Change fuse spec
Medium
Reference
Short upper
thread after
trimming
Thread is not cut
(at specific
head)
Failure of upper
thread holder
solenoid
Failure to hold
upper thread
When the
fluorescent lamp
is not properly
operating, one
of the following
might be the
reason:
9-1
BLOCK DIAGRAM
CHAPTER 9
1) BLOCK DIAGRAM OF SWF/E-U SERIES (Excluding SWF/E-UH 1508-45)
9-2
2) Block Diagram of SWF/E-UH1508-45
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