Weishi WS-8700 User manual

缝纫机系列
使用说明书
Sewing machine series Operation Manual
WS-8700/DDL-9000B
高速自动贴袋缝纫机
High-speed automatic sewing machine for pocket attaching
上海威士机械有限公司
S HANGHAI WEISHI MACHINERY CO.,LTD.

Preface
This manual is written for technical service staffs and operating
personnel.
In the Operation Manual for sewing machine preservers in the garment
factory and the sewing operators, we have made a thorough explanation on
how to use this sewing machine. So in this Service Manual, we will make
some explanations on particular and relevant functions, on the adjustment
methods for compiling, on the phenomenon resulted from changes in value
and other various functions.
In addition to this manual, please refer to other Operation Manuals
and parts list when preserving and repairing this machine.

Shanghai Weishi Mechanical CO.,LTD.
I
For a safe adjustment operation.
Before adjusting the sewing machine, the automatic machine
and the appendant devices (hereinafter called the machine), the
operator should read the machine’s “Important Safety Instructions" carefully and understand
it fully.
The "Important Safety Instructions" in this Service Manual explains some items which are not
included in the machinery specification you bought.
Besides, in order to make you fully understand this Service Manual and the warning signs stickup
in the machine body, the warning signs are used separately according to the following descriptions.
You should fully understand and consciously comply with its contents.
(1) Descriptions about the dangerous level
Danger
When operating and maintaining the machine, the dangerous parts which
could cause death or serious injury by the third person's misoperation
and the privies couldn't avoid.
Warning
The potential parts which could cause death or serious injury by the
third person's misoperation and the privies couldn't avoid when
operating and maintaining the machine.
Caution
The parts which could cause moderate or minor injury by the third
person's misoperation and the privies couldn't avoid when operating
and maintaining the machine.
(2) Descriptions about the indications of the warning patterns
Warning
patterns
Moving Parts:
be
cautious of the
industrial
accident.
Belt Drive:
be
cautious of
the
industrial
accident.
High Voltage
Parts: be
cautious of
electric shock.
Indication
Sign
Indicate the
correct
direction of
rotation
High
Temperature
Parts: be
cautious of
scalding
accident.
Indicate the
earth wire
that
should be
earthed.
Adjustments:Parts'
replacement, removal, repair,
assemble and other
operations.

Shanghai Weishi Mechanical CO.,LTD.
II
Important Safety Instructions
Danger
To prevent the electric shock, when it is necessary to open the electrical cabinet,
please cut off the power first and then open the electrical cabinet after at least
5 minutes.
Caution
1. To prevent human injury, please read and understand this Service Manual before operating.
Besides, in order to use this Service Manual easily at any time, please keep it properly.
2、 To prevent accidents caused by accidental start, please cut off the power before making
any adjustment. When it has to operate with the power on, please do not step on the pedal
or press the start button. When leaving the machine, it is necessary to cut off the power.
3、 To prevent human injury, please verify whether the connecting terminal, cable and other
thins are damaged, loosen and so on after making adjustments.
1. To prevent human injury when adjusting the operation, the person who is responsible should
be taught about the latest information and safety knowledge, and be trained to operate
according to this Service Manual and the Operation Manual.
1. To prevent the accidents caused by misadjustments， the adjustment should be made according
to this Service Manual and the Operation Manual by the maintenance technician who is
familiar with mechanistic relations and has been trained about the safety knowledge.
2. Please use the genuine components made by our company when replacing components.
Our company shall not bear the responsibility for the incidents caused by inappropriate
adjustment and for the using of the components which are not made by our company.
If the adjustment can't be made within the range of indication, you should terminate the
repairing work immediately and authorize the technician in our company or in the agency
shop to solve.
3. To prevent human injury, please verify whether the screws and nuts are loose after making
adjustment.
Accident: Refers to the physical and property damage.
Cut off the power: Refers to turn off the power switch and pull
out the power plug from the socket.
Basic
Education
Mechanical

Shanghai Weishi Mechanical CO.,LTD.
III
4. To prevent human injury, when unexpected things happen during adjustment or machine still
can't work normally after adjustment, please stop operating immediately.
5. To prevent human injury, when adjusting, the safety devices removed or damaged should be
installed at its original place and verify whether they are normal and valid.
6. To prevent human injury, the warning signs stickup in the machine should be able to see
clearly at any time. When they are desquamated or contaminated, you should replace a new
one immediately.
1. To prevent accidents and electric shock, please authorize the specified person with
electrical knowledge or the technician in our company or in the agency shop to make the
adjustment.
2. To prevent human injury, if the fuse blows out, please cut off the power, find out the
cause, eliminate the trouble, and then replace a new fuse with the same capacity
(specification).
3. To prevent human injury, please verify whether the connecting terminal, cable and other
things are damaged, loose and shed after making adjustments.
1. To prevent accidents caused by accidental start, when using air cylinder and other
air-pressure components to make adjustment, please cut off the air supply and drain the
internal compressed air first.
2. To prevent accidents caused by faulty action, please verify whether there is water in
cylinder and air tube.
1. After cutting off the power, the clutch motor will continue to spin because of its inertia.
To prevent human injury, please start to adjust after verifying the motor has stopped.
1. To prevent human injury, do not make any adjustment or transformation which is not complied
with the specifications of the machine. Our company shall not bear any responsibility for
the accidents caused by such adjustment or transformation.
2. To prevent human injury, do not operate exceeding the machine's using range or the usage
specified in this Service Manual and the Operation Manual. Our company shall not bear any
responsibility for the accident caused by such operation.
Electrical
Air-pressure
Mechanical adjustment in clutch motor
Mechanical application and transformation

Shanghai Weishi Mechanical CO.,LTD.
IV
Machinery Part
Caution
1、 To prevent human injury, please use two or more than two persons to lift this machine
and use a moped to move it.
2、 To prevent human injury, please adopt sufficient safety precautions to prevent accidental
drop and turnover when lifting or moving.
3、 We have made a thorough explanation about the installation in the Operation Manual, please
read carefully and fully understand before operating.
1、 To prevent human injury, please replace the component under the direction of this Service
Manual and the Operation Manual.
2、 To prevent occupational injury and human injury, please operate after cutting off the
power.
3、 To prevent human injury, please operate after the machine has been installed steadily.
Meanwhile, it is necessary to choose appropriate tools.
4、 To prevent human injury, please verify whether the screws and nuts are loose, whether they
have unexpected contact with other components after finishing operation.
5、 Please use the genuine components made by our company to replace.
Our company shall not bear any responsibility for the accidents caused by the using of
the components which are not by our company.
If you couldn't replace the components normally under the direction, please stop repairing
and contact with the technicians in our company or the agency shop.
1、 To prevent human injury, please make adjustments within the range indicated in this
Service Manual and the Operation Manual.
2、 To prevent human injury, please operate after the machine has been installed steadily.
Meanwhile, it is necessary to choose appropriate tools.
3、 To prevent human injury, please verify whether the screws and the nuts are loose, whether
they have unexpected contact with other components after finish operating.
4、 To prevent human injury, when it has to operate with the power on, please be careful
enough and do not press the button accidentally.
5、 To prevent human injury and being involved in the machine, please be careful enough and
do not let your hair or clothes touch the transmission part when operating sewing test.
Precautions in various stages
Move
Component Replacement
Adjustmen

Shanghai Weishi Mechanical CO.,LTD.
V
1. To prevent human injury, please make adjustments within the range indicated in this Service
Manual and the Operation Manual.
2. To prevent human injury, please operate after the machine has been installed steadily.
3. To prevent human injury, please verify whether there is unexpected contact between
components after finishing assemble.
4. To prevent human injury, when solidifying the screw and the nut, if there is specified
torsional moment, please solidify in coincidence with the requirement; if there is no such
requirement, please solidify in an appropriate torsional moment.
5. To prevent human injury, please verify whether the direction of rotation is correct during
trial running.
6. To prevent human injury during trial running, please be careful enough and do not let
your hair or clothes touch the transmission part.
Disassemble, Assemble

Shanghai Weishi Mechanical CO.,LTD.
VI
Electricity Part
Caution
1. To prevent human injury, please use two or more than two persons to lift this machine
and use a moped to move it.
2. To prevent human injury, please adopt sufficient safety precautions to prevent accidental
drop and turnover when lifting or moving.
3. We have made a thorough explanation about the installation in the Operation Manual, please
read carefully and understand fully before operating.
1. To prevent accidents and electric shock, please authorize the technicians with electrical
knowledge to operate.
2. To prevent the accidents and electric shock, when it is necessary to open the electrical
cabinet, please cut off the power first and then open the electrical cabinet after at least
5 minutes. Do not operate when your hands are wet.
3. To prevent human injury, please replace the components under the directions in this Service
Manual and the Operation Manual.
4. To prevent human injury, please operate after the machine has been installed steadily.
Meanwhile, it is necessary to choose appropriate tools.
5. To prevent human injury, please verify whether this component has unexpected contact with
other components after replacing and verify whether the connecting terminal and the plug
are poor contact, whether the screws and nuts are loose.
6. To prevent human injury, please verify whether the connecting terminal, cable head are
damaged, shed or loose after operating.
According to the request of security, there are some floating polyvinyl chloride tube,
insulating tape and other insulating materials, and the internal wiring adopt the circuitous
way in order to keep away from the high-tension line. And all of them should be repristinated
after operating.
7. Please use the genuine components made by our company to replace.
Our company shall not bear any responsibility for the accidents caused by the using of the
components which are not made by our company.
If you couldn't replace the components normally under the direction, please stop repairing
and contact with the technicians in our company or in the agency shop.
8. To prevent human injury, if the fuse blows out, please cut off the power, find out the
cause, eliminate the trouble, and then replace a new fuse with the same
capacity (specification).
Precautions in various stages
Move
Component Replacement

Shanghai Weishi Mechanical CO.,LTD.
VII
1. To prevent accidents and electric shock, please authorize the technicians with electrical
knowledge to operate.
2. To prevent the accidents and electric shock, when it is necessary to open the electrical
cabinet, please cut off the power first and then open the electrical cabinet after at least
5 minutes. Do not operate when your hands are wet.
3. To prevent human injury, please make adjustments on the adjustable components
(variable inductance, potentiometer, variable capacity) according to the indications in this
Service Manual and the Operation Manual only
4. To prevent human injury, please operate after the machine has been installed steadily.
Meanwhile, it is necessary to choose appropriate tools.
5. To prevent human injury, please verify whether the screws and the nuts are loose, whether
they have unexpected contact with other components.
6. To prevent human injury, please verify whether the connecting terminal, cable head are
damaged, shed or loose after operating.
7. To prevent human from injury and being involved in the machine, please be careful enough
and do not let your hair or clothes touch the transmission part when operating sewing
test.
1. To prevent human injury, please make adjustments within the range indicated in this Service
Manual and the Operation Manual.
2. To prevent the accidents and electric shock, when it is necessary to open the electrical
cabinet, please cut off the power first and then open the electrical cabinet after at least
5 minutes. Do not operate when your hands are wet.
3. To prevent human injury, please replace the components under the directions in this Service
Manual and the Operation Manual.
4. To prevent human from injury, please operate after the machine has been installed steadily.
Meanwhile, it is necessary to choose appropriate tools.
5. To prevent human injury, when solidifying the screw and the nut, if there is specified
torsional moment, please solidify in coincidence with the requirement; if there is no such
requirement, please solidify in an appropriate torsional moment.
6. To prevent human injury, please verify whether the screws and nuts are loose, whether
they have unexpected contact with other components.
7. To prevent human injury, please verify whether the connecting terminal, cable head are
damaged, shed or loose after operating.
According to the request of security, there are some floating polyvinyl chloride tube,
insulating tape and other insulating materials, and the internal wiring adopt the circuitous
way in order to keep away from the high-tension line. And all of them should be repristinated
after operating.
Adjustmen
Disassemble, Assemble

Shanghai Weishi Mechanical CO.,LTD.
VIII
8. To prevent human injury, please verify whether the direction of rotation is correct during
trial running.
9. To prevent human from injury during trial running, please be careful enough and do not
let your hair or clothes touch the transmission part.
Important Safety Instructions about WS-8700
1. To prevent electric shock, during the power supply importing
period, do not touch the components in the electrical cabinet
when the motor electrical cabinet is open.
2. After changing pattern, please verify the needle point. Once
the pattern exceeds the presser foot, the needle would run
into the presser foot and snap.
1. When power is on, but no display on the operation screen,
please cut off the power and verify the supply voltage and
the power source specification.
2. To prevent the accident caused by the accidental start,
before pressing the start button please verify there is no
barriers underneath when coiling.
3. When the power button is off, the setout button is on, and
the presser foot button is on, do not put your fingers beneath
the presser foot, because the presser foot will
automatically fall down.
Danger
Caution