SunStar SPS/E-BH3100 User manual

USER S MANUAL
SPS/E-BH3100
R
Direct Drive, Electronically
Controlled Lock Stitch Button
Hole Sewing Machine
(Mechanical Part)

Best Quality
Best Price
Best Service
SunStar CO., LTD.
R
1. Thank you for purchasing our product. Based on the rich expertise and
experience accumulated in industrial sewing machine production, SUNSTAR
will manufacture industrial sewing machines, which deliver more diverse
functions, high performance, powerful operation, enhanced durability, and
more sophisticated design to meet a number of user’s needs.
2. Please read this user’s manual thoroughly before using the machine. Make
sure to properly use the machine to enjoy its full performance.
3. The specifications of the machine are subject to change, aimed to enhance
product performance, without prior notice.
4.
This product is designed, manufactured, and sold as an industrial sewing
machine. It should not be used for other than industrial purpose.

Lock Stitch Button Hole Sewing Machine Model
SPS/E-BH3100 -
④ Material Type
G : General
K : For Knit
③ Model Name
① Sunstar
Pattern
System
② Series

1. Machine Safety Regulations ......................................................................................................... 4
2. Specifications of the machine ..................................................................................................... 7
3. Constitution of the machine ......................................................................................................... 8
1) Nomenclatures of each part of the machine ..................................................................................... 8
4. Installation of the machine ............................................................................................................ 9
1) Conditions to install the machine ...................................................................................................... 9
2) Electrical installation conditions ......................................................................................................... 9
3) How to mount the table of the machine ............................................................................................. 9
4) Assembling the peripheral constituents .......................................................................................... 10
5. Preparations before operating the machine ......................................................................... 11
1) How to supply oil ............................................................................................................................. 11
2) How to attach needles ..................................................................................................................... 11
3) How to thread the upper thread ...................................................................................................... 12
4) Threading the lower thread ............................................................................................................. 12
5) How to take the bobbin case on and off ......................................................................................... 13
6) Adjusting the upper thread tension ................................................................................................. 13
7) Adjusting the upper thread sensor .................................................................................................. 13
8) Adjusting the lower thread tension .................................................................................................. 14
9) How to wind the lower thread .......................................................................................................... 14
6. How to repair the machine .......................................................................................................... 15
1) Adjusting the height of the needle bar ............................................................................................ 15
2) Adjusting the needle and the hook .................................................................................................. 15
3) Adjusting the position of hook holder .............................................................................................. 15
4) Adjusting the pressure of the presser foot ...................................................................................... 16
5) How to adjust the cutter .................................................................................................................. 16
6) Adjusting the upper thread trimmer ................................................................................................ 16
7) Adjustment of the lower thread press plate .................................................................................... 17
8) Adjustng the lower trimmer base ..................................................................................................... 17
9) Adjusting the timing of the lower thread hook plate ......................................................................... 18
10) How to adjust the bobbin capture .................................................................................................. 18
11) Adjusting the bobbin winder device ............................................................................................... 19
12) How to install and adjust a motor of direct drive type .................................................................... 19
7. Troubleshooting ............................................................................................................................ 20
8. Table ................................................................................................................................................... 21
9. Gauge List ........................................................................................................................................ 22
1) Cutter .............................................................................................................................................. 22
2) Presser Foot ................................................................................................................................... 23
3) Needle Plate ................................................................................................................................... 24
4) Feed Plate ....................................................................................................................................... 25
Contents

Safety instruction on this manual are defined as Danger, Warning and Notice.
If you do not keep the instructions, physical injury on the human body and machine damage might be occurred.
: This indication should be observed definitely. If not, danger could be happen during the installation,
conveyance and maintenance of machines.
: When you keep this indication, injury from the machine can be prevented.
: When you keep this indication, error on the machine can be prevented.
Danger
Warning
Notice
1-1) Machine
Transportation
Danger
1-2) Machine Installation
Warning
1-3) Machine Repair
Notice
Those in charge of transporting the machine should know the safety regulations very well.
The following indications should be followed when the machine is being transported.
ⓐMore than 2 people must transport the machine.
ⓑTo prevent accidents from occurring during transportation, wipe off the oil on the machine
well.
The machine may not work well or breakdown if installed in certain places, Install the machine
where the following qualifications agree.
ⓐRemove the package and wrappings starting from the top. Take special notice on the nails
on the wooden boxes.
ⓑDust and moisture stains and rusts the machine. Install an airconditioner and clean the
machine regularly.
ⓒKeep the machine out of the sun.
ⓓLeave sufficient space of more than 50cm behind, and on the right and left side of the
machine for repairing.
ⓔEXPLOSION HAZARDS
Do not operate in explosive atmospheres. To avoid explosion, do not operate this machine
in an explosive atmosphere including a place where large quantities of aerosol spray
product are being used or where oxygen is being administered unless it has been
specifically certified for such operation.
ⓕThe machine were not provided with alocal lighting due to the feature of machine.
Therefore the illumination of the working area must be fulfilled by end user.
When the machine needs to be repaired, only the assigned troubleshooting engineer educated at
the company should take charge.
ⓐBefore cleaning or repairing the machine, close down the motive power and wait 5
minutes till the machine is completely out of power.
ⓑNot any of the machine specifications or parts should be changed without consulting the
company. Such changes may make the operation dangerous.
ⓒSpare parts producted by the company should only be used for replacements.
ⓓPut all the safety covers back on after the machine has been repaired.
4
1
Machine Safety Regulations

SPS/E-BH3100 Series is made to sew button hole on fabrics and other similar material for
manufacturing.
Follow the following indications when operating the machine.
ⓐRead through this manual carefully and completely before operating the machine.
ⓑWear the proper clothes for work.
ⓒKeep hands or other parts of the body away from the machine operation parts (needle,
hook, thread take-up lever, cutter and upper thread trimmer mes etc.) when the machine
is being operated.
ⓓKeep the covers and safety plates on the machine during operation.
ⓔBe sure to connect the earthing conductor.
ⓕClose down the electric motive power and check if the switch is turned“off”before opening
electric boxes such as the control box.
ⓖStop the machine before threading the needle or checking after work.
ⓗDo not step on the pedal when turning the power on.
ⓘDo not insert multiple motor plugs into one electric outlet.
ⓙIf possible, install the machine away from source of strong electrical noise such as high
frequency welding machines
Be careful when the presser foot comes down to press. Otherwise, the finger or hand
might be hurt at smacking.
1-4) Machine Operation
Warning
Notice
ⓐSafety label : It describes cautions duing operating the machine.
ⓑThread take-up cover : It prevents from any contact beween body and take-up lever.
ⓒMotor cover: It is a protective device against potential accidents which might occur during
motor's rotation.
ⓓFinger guard : It prevent from contacts between a finger and needle.
ⓔSafety plate : It protects eyes against needle breaks.
1-5) Devices for Safety
5
ⓒ
ⓑ
ⓐ
ⓔ
ⓓ

Caution
Caution mark is attached on the machine for safety.
When you operate the machine, observe the directions on the mark.
Position of Warning Mark
1)
2)
CAUTION
경고
Do not operate without finger guard
and safety devices. Before threading,
changing bobbin and needle, cleaning
etc. switch off main switch.
손가락 보호대와 안전장치 없이 작동하지 마
십시오.
실, 보빈, 바늘교환시나 청소전에는 반드시
주전원의 스위치를 꺼 주십시오.
CAUTION
경고
Hazardous voltage will cause injury.
Be sure to wait at least 360 seconds
before opening this cover after turn
off main switch and unplug a power
cord.
고압 전류에 의해 감전될 수 있으므로 커버
를 열 때는 전원을 내리고 전원 플러그를 뽑
고 나서 360초간 기다린 후 여십시오.
Warning
CAUTION
경고
Do not operate without finger guard and
safety devices. Before threading, changing
bobbin and needle, cleaning etc. switch off
main switch.
손가락 보호대와 안전장치 없이 작동하지
마십시오.
실, 보빈, 바늘교환시나 청소전에는 반드시 주
전원의 스위치를 꺼 주십시오.
CAUTION
경고
Hazardous voltage will cause injury.
Be sure to wait at least 360 seconds before
opening this cover after turn off main switch
and unplug a power cord.
고압 전류에 의해 감전될 수 있으므로 커버를
열 때는 전원을 내리고 전원 플러그를 뽑고 나
서 360초간 기다린 후 여십시오.
3)
1-6) Caution Mark
Position
1-7) Contents of Marks
6

2
Specifications of the machine
7
Item
SPS/E-BH3100G SPS/E-BH3100K
Stitch type
Usage
Sewing Speed
Length of the cutter
Using needle
Stroke of the needle bar
Using hook
Ascent of the presser bar
Raising type of the presser bar
Drive type of the Y-transfer
Zigzag drive type
Drive type of the cutter
Safety device
Provided patterns
No. of stitches
Memory
Using motor
Power consumption
Proper temperature of machine running
Proper relative humidity of machine running
Voltage
Oil supply
Width
Length
Area of buttonhole
General fabrics such as shirts, blouse,
working dress, lady’s dress
Knit suits such as sweater, cardigan,
under ware, lingerie, etc.
Lock stitch
Max. 4,200spm(Normal 3600spm)
Max. 6mm
Max. 40mm(option 120mm)
6.4 ~ 31.8mm
DPx5 #14, #11
35mm
DP-Type Full Rotation (Standard) Hook
Max. 13mm
Driven by a 2-phase stepping pulse motor
Driven by a 5-phase stepping pulse motor
Driven by a 5-phase stepping pulse motor
Driven by a double tuned solenoid
Available to use an emergency stop function during the sew work
Max. 99 patterns (Standard : 4 patterns)
768 stitches per pattern
EP-ROM
Direct drive type AC servo-motor(550W)
600VA
5℃~ 40℃
20% ~ 80%
1-phase:100~240V, 3-phase:200~440V. 50/60Hz
Oil wick type

8
3
Constitution of the machine
1) Nomenclatures of each part of the machine
Arm
Emergency switch
Thread Stand
Operation Box
Power Switch
Control Box
Pedal

9
1) Conditions to install the machine
A. To prevent any accident caused by a malfunction, do not use the machine where the voltage is over the rated one 10%.
B. For safe operation of the machine, use it under the following conditions.
Ambient temperature during operation : 5 ~ 40
Ambient temperature during preservation : -10 ~ 60
C. Relative humidity : Within a range of 20 ~ 80% (Relative speed)
2) Electrical installation conditions
A. Electrical power supply voltage
The electrical power supply voltage shall be within a range of the rated 10%.
It is highly recommended that the electrical power frequency shall be within a range of the rated (50/60Hz) 1%.
B. Electron noise
It is highly recommended that an independent electrical power outlet separated from the products of a strong magnetic
field and high frequency shall be used and keep apart from such products.
C. Be sure to apply a low voltage when attaching the supplementary devices and accessories to the controller
D. Take care not to have water, coffee, etc. spill into the control box and the motor.
E. Do not drop the control box and the motor.
4
Installation of the machine
C. Place and properly arrange the bed on the bed base and
assemble the bed hinge support and the bed hinge
bracket using the bed hinge shaft .
Then fix them with the bed hinge shaft screw .
D. Fix the bed hinge bracket on the table by completely
fastening the clamping bolt of the bracket. Lay the rear part
of the sewing machine to the side and fix the oil pan on the
table, using the screw .
3) How to mount the table of the machine
A. Fix the control box and the electric power switch on
the table.
B. Place the bed base at the marked position on the table and
fix the hinge bracket to the hole.
Cautions
Those in charge of installing the machine should understand the safety regulations and rules very well.
Please commit the electrical wiring work to your SUNSTAR wholesaler or distributor or an electrical technician.
The weight of the machine is more than 40kg. More than 2 people must install it.
Do not connect the electrical power plug until the installation has been finished. If you work a pedal by mistake, the
machine shall operate, which shall cause an injury.
Be sure to connect the grounding conductors. The improper connection can give a cause to electrical shock or
malfunction.
Please mount the belt covers on the machine head part and the motor.
Cautions
Loosely fasten the clamping bolt of the bed
hinge bracket and tighten it completely after
joining it with the bed hinge shaft.
Danger
Make sure that the sewing machine is moved
by at least two persons to prevent any
possible accidents.
[ Fig. 1 ]
①
④
③
⑤
②
[ Fig. 2 ]
⑦
⑧
③
⑤
⑧

D. Drive the head part supporting rod ④into the table by
beating.
A. Atach the motor cover to the back side of the machine by
using fixing bolts (4 EA).
C. Install the thread stand ③on the table.
4) Assembling the peripheral constituents
B. Attach the safety plate to the back side of the arm.
10
[ Fig. 3 ]
①
②
[ Fig. 4 ]
Face Plate
Safety Plate
[ Fig. 5 ]
③
④
Cautions
To prevent any accidents related to safety, be
sure to attach those while working.
Cautions
Drive the head part supporting rod ④
into the table by beating until its end
perfectly.
If it has not been driven until its end
perfectly, it will be unsafe and danger
when the head part is lay down.

11
1) How to supply oil
A. If the machine is used for the first time or it remains unused
for a long term, please supply oil to the oil tank using the oil
supplying device.
2) How to attach needles
Move the needle bar to the highest position turning the hand
pulley, and unfasten the needle fixing screw in the needle
bar, and pull a needle into until that the upper end meets the end
of the needle inserting port in the state that the long groove of
needle faces forward, and then fix it using the needle fixing
screw .
5
Preparations before operating the machine
[ Fig. 7 ]
②
①
Cautions
Required needles: DP 5 #14. (G)
#11. (K)
[ Fig. 6 ]
Sillicon Tank
Sillicon Tank

4) Threading the lower thread
A. Insert the bobbin into the bobbin case as shown in Fig.10.
B. Pull out the lower thread from the groove of the bobbin
case, and then thread it through the thread hole passing
below the tension spring . Take out about 40mm of the
thread through the thread hole for Whip Stitch, and take out
the same length through the thread hole for Pure Stitch.
Pure Stitch (Seal Stitch)
Pure Stitch is a stitching type that while the upper thread is going along straight with the center of the sewing line by
varying the upper thread tension, the lower thread twists up with it in lateral.
Whip Stitch (Plain Stitch)
Whip Stitch is a stitching type that the upper thread moves
vertically on the sewing material with the zigzag shape. This
type is the same thing with the zigzag type of the drop feed
zigzag machine.
[ Fig. 9 ]
①
③
[ Cotton and Span ] [ Polyester ]
②
⑦ Whip Stitch
⑥ Pure Stitch
⑤
④
3) How to thread the upper thread
Place the thread take-up level on the highest position, and then hang up the upper thread as shown in Fig. 9.
In case of the thread guide of the needle bar, hang up the upper thread as shown in Fig. 9 according to the kinds of thread.
The proper length of the upper thread that puts forward from the thread hole of the needle is about 40mm from the needle.
[ Fig. 8 ]
12
Cautions
If the bobbin is inserted by reversing the front
and the back, it will run idle. Therefore, be
sure to insert it by turning clockwise when
seen from behind the bobbin case.

13
A. As in the figure when the secondary thread adjusting device
’s tension adjusting nut is turned clockwise, the upper
thread tension gets strong, and when it is turned otherwise,
the tension gets weaker.
B. When adjusting the tension of the thread take-up lever
spring, disassemble the emergency switch cover and move
the ball screw nut of the thread adjuster to the most right.
Properly place the nut at the groove on the thread tension
adjuster shaft edge and turn it clockwise using the thread
adjusting spanner.
6) Adjusting the upper thread tension
A. Unfasten the joint screw of the thread sensor pin in status
that a thread does not hang on the thread take-up spring,
and adjust to contact the thread take-up spring and the
sensor plate, and then fasten the joint screw.
B. Adjust to contact the thread spring and the sensor plate
certainly regulating the positions of the thread sensor plate
even when the stroke of the thread take-up spring has been
changed.
7) Adjusting the upper thread sensor
Hold the knob of bobbin case, and push it into the shuttle until
it makes a sound.
5) How to take the bobbin case on and off
The distance between the thread take-up
lever spring and the upper thread
adjusting lever should be adjusted to be
10mm.
Cautions
If you start operating the machine under the state
that the bobbin case is not perfectly installed, the
thread will be entangled or the bobbin case will
be protruded.
Cautions
Pay your attention not to contact any other
metals on the thread sensor plate except for
the thread take-up spring. It runs a chance of
failure to detect thread.
[ Fig. 11 ]
[ Fig. 12 ]
[ Fig. 10 ]
①
②
①
④
Thread take-up spring
Thread sensor plate
Joint screw
Spanner
10mm

9) How to wind the lower thread
A. Insert the bobbin into the thread winder drive shaft on the thread winder base attached to the upper cap.
B. Adhere the bobbin winder lever closely to a bobbin, and then let the machine run.
C. After the bobbin winder lever takes off from a bobbin, cut off the thread of bobbin using the winder mes .
[ Fig. 14 ]
※ Thread Tension Table
Please see the electronic manuals for more details.
8) Adjusting the lower thread tension
A. Whip Stitch (Plain Stitch)
Adjust the tension adjusting screw until the bobbin case
drops by its weight when you are waving it taking the end of
the thread.
B. Purl Stitch (Seal Stitch)
Adjust the tension adjusting screw until the bobbin case
starts dropping slowly by its weight when you are taking the
end of the thread.
①
[ Fig. 13 ]
14
①
④
②
③
Stitch type Tension of the lower thread Tension of the thread take-up spring
0.15~0.25N(15g~25g) 0.10N~0.20N
(10g~20g)
0.05~0.15N(5g~15g)
Whip stitch
Pure stitch
For the upper thread tension, refer to the table below and set the tension value on the OP panel accordingly.
(However, the applicable value might need to be adjusted depending on thread or fabric type.)
Stitch type
G-Type
Bartack
30
Bartack
37
Zigzag
30
Zigzag
37
Whip stitch
Pure stitch
K-Type
Bartack
29
Bartack
36
Zigzag
29
Zigzag
36

15
1) Adjusting the height of the needle bar
A. Lower the needle bar ①to the lowest position.
B. Unfasten the joint screw ③on the needle clamp after
removing the plate rubber cap ②.
C. After inserting the part of the needle bar setting gauge ④
between the lower plate of the needle and the upper plate of
the needle plate, adjust the height of the needle bar.
D. After fastening the joint screw on the needle bar clamp,block
it with the plate rubber cap ②.
2) Adjusting the needle and the hook
[ Fig. 15 ]
[ Fig. 16 ]
6
How to repair the machine
3) Adjusting the position of hook holder
Loosen the fastening screw ①. Adjust so that the needle and
the right side of the hook holder meet part A of the hook and
fasten the screw ①.
[ Fig. 17 ]
A. Fasten the joint screw on the hook joint ①.
B. Raise the needle bar ②from the lowest position by using the hand pulley, and insert the part 2 of the needle bar setting
gauge ④between the needle bar lower plate and the needle plate ③upper plate.
C. Fasten so that the hook point and the center of the needle meet together when the thread rod touches the thread rod
setting gauge ④.
D. Loosen the fastening screw and adjust the hook to make the distance between the hook point and the needle 0.01
~0.08mm.
②③
④
①
①
④
②
③
0.01~0.08
Distance between the needle
center and the hook point
Loweat
Position
①
󳟆
②

4) Adjusting the pressure of the presser foot
A. Unfasten the pressure adjusting screw ①.
B. Adjust the pressing pressure by turning the pressure adjusting
screw ②.
C. Fasten the pressure adjusting screw ①.
The standard height of the pressure adjusting screw is
30mm.
[ Fig. 18 ]
5) How to adjust the cutter
A. Adjustment of the cutter position
Separate the cutter solenoid shaft and the cutter link
bracket from the upper part of the Arm.
Loosen the fastening screw of the cutter adhering
plate and move the cutter holder to the front and back to
adjust the position of the cutter.
The standard position of the cutter is where its end is a
distance of 2.2 mm from the center of the needle.
Loosen the fastening screw of the cutter adhering
plate and move the cutter holder to the right and left to
adjust the position of the cutter.
B. Adjustment of the cutter height
Lower the cutter manually to its lowest point.
Adjust the distance between the upper part of the cutter
blade and the upper side of the needle plate to make it
3mm, and fasten the cutter, using the cutter fastening
screw .
[ Fig. 19 ]
②
②
③
0.5mm
①
30mm
①
6) Adjusting the upper thread trimmer
A. Adjusting the height of the thread trimmer mes.
Unfasten the joint screw ①.
After adjusting the interval between the thread trimmer
fixing mes ②and the presser foot to be 0.5mm, fasten
the joint screw ①.
[ Fig. 20 ]
②
③
④
2.2mm
2.2mm
3mm
①
Lowest
Position
Top of needle
Plate
16

17
B. Adjusting the timing of the upper thread trimmer
After shutting off the preparation lamp by pressing the
preparation key in the operation box, press the
presser foot key to contact the presser foot on the
needle plate.
To adjust the opening speed of the upper trimmer,
loosen the tightening screw ③and adjust the open
cam A ④left or right to set the distance between the
upper trimmer's moving blade ①and the open cam B
②at 0.5mm.
The opening timing is adjusted by correcting the
distance between the lever return plate of the upper
thread trimmer and the return cap to be 2mm.
①
②
④③③
②
⑦
⑤
⑥
1mm
Approx. 0.5mm
2mm
④
Roller
⑤
①
③
B
A
8) Adjustng the lower trimmer base
A. Place the end part of the under thread presser ①on A
exactly.
B. Move the mes automatic lever ②arrow-directionally to
touch the lower thread trimmer's moving blade on B.
C. Adjust to touch the lower thread cover with the roller of
the lower hook plate by fastening the joint screw of the
lower thread cover and then fasten the joint screw .
[ Fig. 23 ]
[ Fig. 21 ]
2mm
About 3mm
7) Adjustment of the lower thread press plate
A. Loosen the fastening screw of the lower thread press plate.
Adjust the distance between the lower thread press plate 󳟆and
the center of the needle hole to make it 2 ~ 3mm.
B. Tighten the fastening screw of the lower thread press
plate.
[ Fig. 22 ]

10) How to adjust the bobbin capture
A. After shutting off the preparation lamp by pressing the
preparation key in the operation box, press the presser foot
key to contact the presser foot on the needle plate.
B. Unfasten the joint screw of the bobbin capture.
C. Adjust to put the contacting surface of the bobbin capture
into the hole of the bobbin case.
D. After making sure that the presser foot has placed its original
position, unfasten the nut . Adjust to correct the distance
from the bed edge to be 12.5mm by turning the joint screw
.
[ Fig. 25 ]
③
②
①
①④
12.5
Lower thread plate Y-Transfer axis Punched mark
①
9) Adjusting the timing of the lower thread hook plate
Adjust to correct the right end of the transfer arm support and the punched mark on the Y-transfer axis exactly by unfastening
the joint screw of the transfer arm support.
[ Fig. 24 ]
18

19
12) How to install and adjust a motor of direct drive type
A. Under the state that the joint screw no. 1 when attaching a
coupling to the servo motor is positioned correctly at the
surfacing part of the servo motor, adjust to make the interval
between the coupling and the servo motor to be 0.7mm and
then fasten the joint screw no. 1 of the coupling.
B. Under the state that the joint screw no. 1 of coupling when
attaching a coupling to the upper shaft is positioned
correctly at the surfacing part of the upper shaft, adhere it
toward the back bearing O-Ring in the upper shaft and
fasten the coupling no.1 joint screw. (The distance is about
2mm).
C. Take care to connect the two couplings by matching the
positions of joint screws each other.
If the positions of the coupling joint screws do not match
correctly each other, the needle will not stop at the
normal position.
[ Fig. 27 ]
No. 1 joint screw Servo motor
O-Ring
Upper shaft
Back bearing
on the upper
shaft
ARM
Coupling
Surfacing part
0.7
②
11) Adjusting the bobbin winder device
A. When the quantity of thread to be wound is big, unfasten
the joint screw on the thread winder adjusting plate and
turn it to A-direction by using the initial position of the
thread winder adjusting plate. And when the quantity is
small, get it turned to B-direction.
B. Adjust the position of the bobbin winding driving wheel to
make it a distance of 1mm from the upper collar and a
distance of 8mm from the hand pulley driving gear. Tighten
the fastening screw.
[ Fig. 26 ]
Bobbin Winder Adjusting Plate
Hand Pulley
Driving Gear
Bobbin Winder
Driving Wheel
Upper Shaft Collar
Upper Shaft Bushing
1mm
8mm