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TO ENSURE SAFE USE OF YOUR SEWING MACHINE For the sewing machine, automatic machine and ancillary devices (hereinafter collectively referred to as "machine"), it is inevitable to conduct sewing work near moving parts of the machine. This means that there is always a possibility of unintentionally coming in contact with the moving parts.
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2. The content of this section includes items which are not contained in the specifications of your product. 3. Be sure to wear safety goggles to protect against accident caused by needle breakage. 4. Those who use a heart pacer have to use the machine after consultation with a medical specialist. Safety devices and warning labels 1. Be sure to operate the machine after verifying that safety device(s) is correctly installed in place and works normally in order to prevent accident caused by lack of the device(s). 2. If any of the safety devices is removed, be sure to replace it and verify that it works normally in order to prevent accident that can result in personal injury or death. 3. Be sure to keep the warning labels adhered on the machine clearly visible in order to prevent accident that can result in personal injury or death. If any of the labels has stained or come unstuck, be sure to change it with a new one. Application and modification 1. Never use the machine for any application other than its intended one and in any manner other than that prescribed in the instruction manual in order to prevent accident that can result in personal injury or death. JUKI assumes no responsibility for damages or personal injury or death resulting from the use of the machine for any application other than the intended one. 2. Never modify and alter the machine in order to prevent accident that can result in personal injury or death. JUKI assumes no responsibility for damages or personal injury or death resulting from the ma- chine which has been modified or altered. Education and training 1. In order to prevent accident resulting from unfamiliarity with the machine, the machine has to be used only by the operator who has been trained/educated by the employer with respect to the machine oper- ation and how to operate the machine with safety to acquire adequate knowledge and operation skill. To ensure the above, the employer has to establish an education/training plan for the operators and edu- cate/train them beforehand. Items for which the power to the machine has to be turned off Turning the power off: Turning the power switch off, then removing the power plug from the outlet. This applies to the following. 1. Be sure to immediately turn the power off if any abnormality or failure is found or in the case of power failure in order to protect against accident that can result in personal injury or death.
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Transportation 1. Be sure to lift and move the machine in a safe manner taking the machine weight in consideration. Refer to the text of the instruction manual for the mass of the machine. 2. Be sure to take sufficient safety measures to prevent falling or dropping before lifting or moving the machine in order to protect against accident that can result in personal injury or death. 3. Once the machine has been unpacked, never re-pack it for transportation to protect the machine against breakage resulting from unexpected accident or dropping. Unpacking 1. Be sure to unpack the machine in the prescribed order in order to prevent accident that can result in personal injury or death. In the case the machine is crated, in particular, be sure to carefully check nails. The nails have to be removed. 2. Be sure to check the machine for the position of its center of gravity and take it out from the package carefully in order to prevent accident that can result in personal injury or death. Installation (I) Table and table stand 1. Be sure to use JUKI genuine table and table stand in order to prevent accident that can result in per- sonal injury or death. If it is inevitable to use a table and table stand which are not JUKI genuine ones, select the table and table stand which are able to support the machine weight and reaction force during operation. 2. If casters are fitted to the table stand, be sure to use the casters with a locking mechanism and lock them to secure the machine during the operation, maintenance, inspection and repair in order to prevent accident that can result in personal injury or death. (II) Cable and wiring 1. Be sure to prevent an extra force from being applied to the cable during the use in order to prevent electrical-shock, earth-leakage or fire accident. In addition, if it is necessary to cable near the operating section such as the V-belt, be sure to provide a space of 30 mm or more between the operating section and the cable. 2. Be sure to avoid starburst connection in order to prevent electrical-shock, earth-leakage or fire accident. 3. Be sure to securely connect the connectors in order to prevent electrical-shock, earth-leakage or fire accident. In addition, be sure to remove the connector while holding its connector section.
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5. Be sure to turn the power off and check to be sure that the machine and motor completely stop before re- moving the belt cover and V-belt in order to prevent accident caused by abrupt start of the machine or motor. 6. If a servomotor is used with the machine, the motor does not produce noise while the machine is at rest. Be sure not to forget to turn the power off in order to prevent accident caused by abrupt start of the motor. 7. Never use the machine with the cooling opening of the motor power box shielded in order to prevent fire accident by overheat. Lubrication 1. Be sure to use JUKI genuine oil and JUKI genuine grease to the parts to be lubricated. 2. If the oil adheres on your eye or body, be sure to immediately wash it off in order to prevent inflamma- tion or irritation. 3. If the oil is swallowed unintentionally, be sure to immediately consult a medical doctor in order to pre- vent diarrhea or vomiting. Maintenance 1. In prevention of accident caused by unfamiliarity with the machine, repair and adjustment has to be carried out by a service technician who is thoroughly familiar with the machine within the scope defined in the instruction manual. Be sure to use JUKI genuine parts when replacing any of the machine parts. JUKI assumes no responsibility for any accident caused by improper repair or adjustment or the use of any part other than JUKI genuine one. 2. In prevention of accident caused by unfamiliarity with the machine or electrical-shock accident, be sure to ask an electrical technician of your company or JUKI or distributor in your area for repair and mainte- nance (including wiring) of electrical components. 3. When carrying out repair or maintenance of the machine which uses air-driven parts such as an air cyl- inder, be sure to remove the air supply pipe to expel air remaining in the machine beforehand, in order to prevent accident caused by abrupt start of the air-driven parts. 4. Be sure to check that screws and nuts are free from looseness after completion of repair, adjustment and part replacement. 5. Be sure to periodically clean up the machine during its duration of use. Be sure to turn the power off and verify that the machine and motor stop completely before cleaning the machine in order to prevent accident caused by abrupt start of the machine or motor.
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Precautions to be taken so as to use the TSN-421 and TSC-441 more safely 1. Keep your hands away from needle when you turn ON the power switch or while the machine is in operation. 2. Do not put your fingers into the thread take-up cover while the machine is operating. 3. Turn OFF the power switch when removing the belt cover or the V belt.
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BEFORE OPERATION CAUTION : Check the following so as to prevent maloperation of and damage to the machine. • Before you put the machine into operation for the first time after the set-up, clean it thoroughly. Remove all dust gathering during transportation and oil it well. • Confirm that voltage has been correctly set. Confirm that the power plug has been properly connected to the power supply. • Never use the machine in the state where the voltage type is different from the designated one. • The direction of normal rotation of the machine is counterclockwise as observed from the pulley side.
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18. ADJUSTING THE NEEDLE-TO-SHUTTLE RELATIONSHIP ........9 19. ADJUSTING THE WALKING FOOT AND THE PRESSER FOOT (THIS ITEM IS ONLY APPLIED TO THE TSC-441.) ........... 12 20. THE FEED DOG-TO-NEEDLE RELATIONSHIP ............13 21. MOTOR PULLEY AND SEWING SPEED ..............14...
56 mm weight materials wuth a semi-rotary Needle to be used Schmetz 794 large-capacity shuttle TSC-441: 1-needle, unison feed, long cylinder Needle system Nm 130 to Nm 280 (standard: Nm 230) bed, lockstitch machine for extra heavy- Thread #00 to #8...
4. INSTALLING THE BELT COVER WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior. 1.
7. LUBRICATION WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior. – 3 –...
8. HOW TO INSTALL THE NEEDLE WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior. 9.
10. HOW TO WIND A BOBBIN THREAD 11. HOW TO INSTALL THE BOBBIN WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior. –...
12. HOW TO THREAD THE MACHINE HEAD WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior. 13.
14. THREAD TENSION WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior. 15. THREAD TAKE-UP SPRING –...
16. ADJUSTING THE PRESSER FOOT PRESSURE 17. ADJUSTING THE HEIGHT OF THE FEED DOG WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior.
18. ADJUSTING THE NEEDLE-TO-SHUTTLE RELATIONSHIP WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior. –...
19. ADJUSTING THE WALKING FOOT AND THE PRESSER FOOT (THIS ITEM IS ONLY APPLIED TO THE TSC-441.) WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior.
20. THE FEED DOG-TO-NEEDLE RELATIONSHIP WARNING : To avoid possible personal injury due to abrupt start of the machine, turn off the power to the machine and check to be sure that the motor has totally stopped rotating in prior. –...
60 Hz 1,715 rpm ø 50 ø 154 50 Hz 1,430 rpm ø 85 TSC-441 800 sti/min 60 Hz 1,715 rpm ø 70 (Caution) The effective diameter of the motor pulley is obtained by subtracting 5 mm from the outside diameter.