JUKI DSC-245 Instruction Manual
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- Specifications (4 pages) ,
- Handbook (257 pages) ,
- Handbook (272 pages)
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Summary of Contents for JUKI DSC-245
- Page 1 DSC-245,-4,-7 DSC-245V,-4,-7 INSTRUCTION MANUAL NOTE : Read safety instructions carefully and understand them before using. Retain this Instruction Manual for future reference. No.02 40092228...
- Page 3 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.
- Page 4 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.
- Page 5 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.
- Page 6 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.
- Page 7 Precautions to be taken so as to use the DSC-245,-4,-7,DSC-245V,-4,-7 more safely 1. To avoid personal injury, never put your fingers under the needle when you turn ON the power switch or operate the sewing machine. 2. To avoid personal injury, never put your fingers into the thread take-up cover while the sewing machine is in operation.
- Page 8 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. •...
- Page 9 DSC-240 Series Model Description Industrial Sewing Machine Function make stitches and sew Applied harmonized standards, in particular : EN ISO12100, EN ISO10821, EN 50581 Manufacturer : JUKI CORPORATION 2-11-1, Tsurumaki, Tama-shi, Tokyo, Japan...
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Page 10: Table Of Contents
16.ADJUSTING THE WALKING FOOT AND THE PRESSER FOOT ........9 17.NEEDLE-TO-HOOKRELATIONSHIP ................... 10 18.AUXILIARY THREAD TENSION CONTROLLER (DSC-245-4,-7, DSC-245V-4,-7) .... 10 19.ADJUSTING THE PRESSURE OF THE FIXED KNIFE (DSC-245-4,-7, DSC-245V-4,-7) ... 11 20.ONE-TOUCH TYPE REVERSE FEED STITCHING MECHANISM (DSC-245-4,-7, DSC-245V-4,-7) .................... 11 21.ADJUSTING THE THREAD TRIMMING CAM .............. -
Page 11: Specifications
SPECIFICATIONS Model DSC-245 DSC-245-4,-7 DSC-245V DSC-245V-4,-7 Type of sewing Cylinder-bed, Cylinder-bed, Cylinder-bed, Cylinder-bed, machine head 1-needle,unison-feed 1-needle,unison-feed 1-needle,unison-feed 1-needle,unison-feed lockstitch machine lockstitch machine with lockstitch machine lockstitch machine with an automatic thread (horizontal drop feed) an automatic thread trimmer trimmer (horizontal drop... -
Page 12: Setting Up The Sewing Machine
1.SETTING UP THE SEWING MACHINE ひざ上げ支え止め穴（４ヶ） Knee lifter supporting hole (4 ea.) Hole 鎖穴 Machine setting hole ミシン止め穴（４ヶ） (4ea.) 1. Mounting position of the knee lifter (Caution) ❶ The knee lifter should be mounted before the motor is installed. 2. Carry the sewing machine with two persons. ❹... -
Page 13: Installing The Belt Cover And The Bobbin Winder
3.INSTALLING THE BELT COVER AND THE BOBBIN WINDER WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. (Installing procedure) ❶ 1. Insert support ❶ of the belt cover into the tapped hole in the machine arm. -
Page 14: Attaching The Needle
● Lubricating the bed support base 1. Pour JUKI Defrix Oil No.1 into the bed support base until H mark ❶ is reached. 2. If the level of the oil surface has come down below L mark ❷ ,add some amount of oil accordingly. -
Page 15: Threading The Bobbin Case
7.THREADING THE BOBBIN CASE ● Removing the bobbin case Raise the bobbin case latch to remove the bobbin case. ● Threading the bobbin case ❶ 1. Pass the thread through threading slit in the bob- bin case,and route it under tension spring ❷ . 2. -
Page 16: Thread The Machine Head
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. (For the DSC-245-7,DSC-245V-7) (For the DSC-245,DSC-245V) Thread the machine head in the order of ❶ through to . -
Page 17: Thread Tension
12.THREAD TENSION WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. ● Adjusting the needle thread tension Turning tension nut ❶ clockwise (toward A) increases the needle thread tension. Turning it counterclockwise (toward B) decreases the tension. -
Page 18: Height Of The Feed Dog (Dsc-245,-4,-7)
15.HEIGHT OF THE FEED DOG (DSC-245,-4,-7) WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Feed dog ❸ is factory-adjusted to jut out 0.8 mm from the surface of throat plate ❶ .How to adjust the height of the feed dog. -
Page 19: Adjusting The Walking Foot And The Presser Foot
16.ADJUSTING THE WALKING FOOT AND THE PRESSER FOOT WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. ● Alternate vertical motions of the walking foot and the presser foot 1. -
Page 20: Needle-To-Hookrelationship
When installing the hook,tighten the throat plate frame after checking that the protruding portion of the hook stopper in the throat plate frame are properly inserted in the slot in the bobbin case retainer. 18.AUXILIARY THREAD TENSION CONTROLLER (DSC-245-4,-7, DSC-245V-4,-7) 1. Adjust the auxiliary thread tension using nut ❶ . -
Page 21: Adjusting The Pressure Of The Fixed Knife (Dsc-245-4,-7, Dsc-245V-4,-7)
19.ADJUSTING THE PRESSURE OF THE FIXED KNIFE (DSC-245-4,-7, DSC-245V-4,-7) WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1. Loosen two setscrews ❶ of the fixed knife and move adjusting plate ❷... -
Page 22: Adjusting The Thread Trimming Cam
2. Turn the thread trimming cam until first screw ❸ in the thread trimming cam aligns with cam roller shaft ❹ in the cam roller arm,and tighten the screw at the aligned position. 22.ADJUSTING THE CAM ROLLER ARM AND THE CAM ROLLER ARM PRESSER (DSC-245-4,-7, DSC-245V-4,-7) WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. -
Page 23: Adjusting The Operating Stroke Of The Picker (Dsc-245-4,-7, Dsc-245V-4,-7)
24.ADJUSTING THE OPERATING STROKE OF THE PICKER (DSC-245-4,-7, DSC-245V-4,-7) WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1. Turning the handwheel, align the red marker dot in the machine arm with the white marker dot in the handwheel. -
Page 24: How To Change From Elliptical Feed To Horizontal Feed
Feed bar block A ★ B1603245000 Feed bar rocker arm B163224500C Upper/lower feed pin (Caution) 1．The parts attached with an asterisk(*) are the exclusive parts for the DSC-245-4 or 7. 2．★ marks mean the parts used succeedingly after replacement. – 14 –... - Page 25 For attaching a broad tape MAQ09207000 Walking foot For attaching a narrow tape MAQ09307000 Walking foot For attaching a broad tape (Caution) The parts attached with an asterisk(*) are the exclusive parts for the DSC-245-4 or 7. – 15 –...
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Page 26: How To Change From Horizontal Feed To Elliptical Feed
27.HOW TO CHANGE FROM HORIZONTAL FEED TO ELLIPTICAL FEED WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. This model can be changed to elliptical feed by changing the related parts accordingly. 1. - Page 27 2. Installation process 1) Fit spring over screw . In this state, fix feed bar hinge stud . 2) Attach feed driving pin in place. 3) Attach feed bar block A on feed bar oscil- lating arm .
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Page 28: Motor Pulley And Sewing Speed (Dsc-245, Dsc-245V)
28.MOTOR PULLEY AND SEWING SPEED (DSC-245, DSC-245V) 1 . Use the 3-phase 400 W AC clutch motor. 2 . Use an M type V belt. 3 . The following table shows the relationship among the motor pulley and the sewing speed. -
Page 29: Troubles And Corrective Measures
29.TROUBLES AND CORRECTIVE MEASURES Trouble Cause Corrective measures ① The thread path,needle point,hook point or bobbin 1. Thread breakage ○ Remove the scratches on the hook point using a fine sand (Thread frays or case positioning finger has scratches. paper. Buff the bobbin case positioning finger. ②... - Page 32 Please do not hesitate to contact our distributors or agents in your area for further information when necessary. Copyright © 2012-2013 JUKI CORPORATION ＊ The description covered in this instruction manual is subject to change for improvement of the commodity without notice.