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JUKI AW-3SD Instruction Manual

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AW-3SD
INSTRUCTION MANUAL
Ver ： 1.00
1

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Summary of Contents for JUKI AW-3SD

  • Page 1 AW-3SD INSTRUCTION MANUAL Ver ： 1.00...

  • Page 2: Table Of Contents

    3-5. Length of remaining thread to be removed ..............11 3-6. Device operation lamp ....................11 3-7. Behavior of the AW-3SD device when the power is turned ON ........ 12 3-8. Program mode list ......................12 3-9. Basic operation and setting ..................15 3-10.

  • Page 3: General

    AW-3's functions, thereby not only helps increase efficiency of sew- ing work but also improves convenience. Refer to the technical data on the JUKI industrial computer-controlled sewing machine PLK-J, "Sewing machine head", "Operation panel" and "Control device" for information about the main body of the sewing machine.

  • Page 4: Configuration

    1-2. Configuration * The illustration shows the PLK-J6040R. ❾ ❸ ❷ ❽ ❹ ❶ ❼ ❺ ❻ – 2 –...
  • Page 5 Name Function ❶ Main body of device It is mounted under the sewing machine bed and is the mechanical section of the device which carries out replacement of the bobbin, removal of thread remaining on the bobbin, winding of thread on a bobbin, threading, thread trimming and thread unraveling automatical- ❷...

  • Page 6: Installation

    2. INSTALLATION 2-1. Installing the AW-3SD Refer to the "Engineer's Manual for the AW-3SD" for details. 2-2. Installation location For the installation location, carefully check the following points. (1) This device uses an optical sensor. In order to protect the optical sensor from malfunctioning, do not in- stall the device near a window or in any other location where it is likely to be exposed to direct sunlight.

  • Page 7: Operation Procedure

    3. OPERATION PROCEDURE WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 3-1. Opening/closing the cover door It is necessary to open cover door ❶ on the top of the table to set up a bobbin in the device. When you want to open cover door ❶...

  • Page 8: Removing The Device Cover

    3-2. Removing the device cover It is necessary to remove device cover ❶ when passing the bobbin thread or conducting maintenance. Loosen hand-turned knob ❷ as shown in the figure. Then, shift device cover ❶ to the left to remove the de- vice cover ❶...

  • Page 9: How To Thread The Device With The Bobbin Thread

    3-3. How to thread the device with the bobbin thread In order to accurately measure the length of thread from the bobbin thread cone ❶ to be wound on a bobbin, guide the thread from the bobbin thread cone ❶ through the bobbin thread feeding unit and draw the thread out from the nozzle as illustrated in the figure.
  • Page 10 When the thread is put in thread path tube ❽ , it is sucked. Put the thread in the tube, while pulling the thread from the bobbin thread cone, until the length of thread coming out of the tip of nozzle  becomes approximately 13 cm.

  • Page 11: How To Set A Bobbin

    3-4. How to set a bobbin This device uses two bobbin cases each of which is fitted with a bobbin. (1) How to fit a bobbin in the bobbin case Fit a bobbin in the bobbin case so that clutch holes ❶...
  • Page 12 Take out the bobbin from bobbin setting section ❷ by hand. ❷ B icon on the AW When you press operation screen, the bobbin placed in the de- vice (or in the hook) is carried to bobbin setting section ❷ . Take out the bobbin from bobbin setting section ❷...

  • Page 13: Length Of Remaining Thread To Be Removed

    3-5. Length of remaining thread to be removed During the remaining-thread removal operation, bob- bin clutch holes ❶ turn as the bobbin rotates. The device recognizes that the remaining thread is being removed by detecting turning of the bobbin clutch holes ❶...

  • Page 14: Behavior Of The Aw-3Sd Device When The Power Is Turned On

    3-7. Behavior of the AW-3SD device when the power is turned ON When is pressed after the power is turned ON, the AW-3SD carries out its initialization opera- tion if it is operated for the first time. This device operates on the premise that bobbins wound with thread are placed in the hook and bobbin setting section when the power is turned ON.
  • Page 15 ● AWRC : Determination of the bobbin thread remaining amount, AWMV：Manual threshold for the determination of the bobbin thread remaining amount "3-11-1. Bobbin thread remaining amount determination method" p.20. Refer to ● AWWL : Setting of the bobbin thread winding length Refer to "3-11-2.
  • Page 16 ● AWRL : Setting of the upper limit of the remaining thread removal amount If the remaining thread length exceeds 8 m, set this item to "1: Not limited". ● AWDP : Setting of the stop position at the time of threading When conducting threading after winding a bobbin, the thread sometimes slips out of the tension spring.

  • Page 17: Basic Operation And Setting

    3-9. Basic operation and setting The PLK-J is provided with the independent operation function for carrying out setup of the AW-3SD and the setting function related to the automatic bobbin changing. Open the AW operation screen when carrying out the independent operation, or the AW thread information setting screen when carrying out setting.

  • Page 18: Operating The Aw

    3-10. Operating the AW A on the standard screen 2, When you press the AW operation screen is displayed. At this time, the bobbin check screen is displayed when no bobbin is loaded in the device, or the error screen is displayed when an AW error has occurred. On these screens, the error will be reset by complet- ing loading of a bobbin.
  • Page 19 Ⓐ : Bobbin change icon This button is used for winding a bobbin with new thread in the case of changing the thread, etc. When ❶ Ⓐ , the bobbin placed in hook ❶ you press is changed with the bobbin in bobbin setting section ❷...
  • Page 20 Ⓓ : Threaded bobbin loading icon This button is used for loading a threaded bobbin in the hook ❶ . Be sure to check the bobbin to be loaded in the hook ❶ is wound with Ⓓ . If thread before pressing an empty bobbin is loaded in the hook ❶...

  • Page 21: Setting The Aw Number-Of-Stitches Input Mode, Aw Operation Mode And Remaining-Thread Allowance Length

    3-11. Setting the AW number-of-stitches input mode, AW operation mode and remaining-thread allowance length A on the standard screen 2, When you press the AW thread information setting screen is dis- played. On the AW thread information setting screen, the Ⓐ...
  • Page 22 3-11-1. Bobbin thread remaining amount determination method Ⓐ , the bobbin thread remaining amount determination method setting screen is dis- When you press played. On this screen, the method of determining the bobbin thread remaining amount can be set to the Manual or Auto.
  • Page 23 In the case of the Auto, settings of the respective data items are as shown in the table given below. Average pitch of the pattern Average pitch of the pattern x Thread consump- tion allowance rate Bobbin thread winding length Remaining thread allowance length Number of stitches to be sewn before changing a bobbin = (Bobbin thread winding length - Remaining thread allowance length) ÷...
  • Page 24 3-11-3. Remaining thread allowance length Ⓑ , the remaining thread When you press allowance length setting screen is displayed. The remaining thread allowance length can be set to 0 (zero) to 3.5 m in in increments of 0.01 m. The remaining thread allowance length is used in the case the bobbin thread remaining length determina- tion method is set to the Auto.
  • Page 25 3-11-6. Thread consumption allowance rate Ⓕ , the thread consumption When you press allowance rate setting screen is displayed. The thread consumption allowance rate can be set to 100 to 200%. The thread consumption allowance rate is used in the case the bobbin thread remaining length deter- mination method is set to the Auto.

  • Page 26: Example Of Operation

    3-12. Example of operation This clause gives an example of how to actually operate the device. (1) In the case both of the two bobbins have been taken out of the device or both of the two bobbins are empty Turn the power to the device.
  • Page 27 Set the method to determine the bobbin thread remaining amount. Ⓐ on the AW thread information Press setting screen. Select either Manual or Auto D . In the case of the Manual, set the number of stitches using the up/down arrow icon and num- ber icons.
  • Page 28 Place the first bobbin in the bobbin setting I . The bobbin is section. Then, press taken in the device. (Refer to "3-4. How to set a bobbin" p.9 for the bobbin setting proce- dure.) Subsequently, place the second bobbin in the bobbin setting section.
  • Page 29 (2) In the case both of the two bobbins have been taken out of the device or one (or both) of the two bobbins is wound with thread In this case, the steps of procedure to be taken up to step 5) are same with those in the case of (1).
  • Page 30 (3) In other case (In the case one or two bobbins are loaded in the de- vice (including the hook) other than the case (2).) Turn the power to the device. If a bobbin is loaded in the bobbin setting sec- tion, take it out.

  • Page 31: Turning Off Of The Power

    3-13. Turning OFF of the power Do not turn OFF the power to the device in the following cases unless there is an emergency. Device movement: ① While the device is engaged in the removal of thread remaining on the bobbin ②...
  • Page 32 Error code Description Error handling procedure ① Take out the relevant bobbin from the bobbin set- Thread twining When winding a bobbin, the fault device has failed to tangle the ting section. If any thread remaining on the bob- thread in the hook. bin, remove it by hand.

  • Page 33: Detection Of Errors Related To The Aw

    3-15. Detection of errors related to the AW 3-15-1. Error detection under the normal conditions A on the standard screen or try to If you press use the AW function in the state where no bobbin is loaded in this device (the state where two bobbins are not loaded), the AW error screen will be dis- played.

  • Page 34: List Of Errors

    3-16. List of errors AW-related errors are listed in the table below. Error No. Description of error How to recover M-376 Remaining-thread removal error Refer to "3-14. Error display and error handling procedure" p.29 (AW error screen) for the error resetting method. M-377 Thread twining fault Refer to...

  • Page 35: Cautions

    3-17. Cautions During the use of the AW-3SD, the setting table changeover in conjunction with the sewing pattern is not supported. Stitch length of the stitches produced by basting stitch (BAT code) is not counted in the thread con- sumption. If basting stitch is frequently used within one sewing pattern, you should carefully check the amount of thread remaining on the bobbin.

  • Page 36: Maintenance

    4. MAINTENANCE 4-1. Attaching / removing the cover WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Remove front cover ❶ from the device before carrying out cleaning, etc. "3-2.

  • Page 37: Cleaning

    4-2. Cleaning Periodically carry out cleaning of each section of the device with an air gun supplied with the unit as an ac- cessory. WARNING : In order to prevent the device from malfunctioning or being damaged, be sure to check the follow- ing items before using it.
  • Page 38 (3) Cleaning the mechanical section Carry out cleaning of the mechanical ❶ section once a twice a week. ❸ Carry out cleaning of each belt ❶ and pulley ❷ with an air gun. In addition, carry out cleaning of moving sections other than those shown in the figure appropriate- ❷...

  • Page 39: Replacing The Fuse

    4-3. Replacing the fuse DANGER : In order to prevent accidents due to an electrical shock, be sure to turn OFF the power switch and remove the power plug from the receptacle before replacing the fuse. In addition, be sure to attach the rated fuse.

  • Page 40: Adjusting The Air Flow For The Remaining Thread Guide

    4-5. Adjusting the air flow for the remaining thread guide WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. The initial adjustment value of the speed controller has been adjusted to the value which is obtained by Remaining thread Speed controller...

  • Page 41: Troubleshooting

    5. TROUBLESHOOTING If an error occurs while the device is in operation, the relevant error is displayed on the operation panel. Han- "3-14. Error display and error handling procedure" p.29. dle the error referring to If the error cannot be reset or the error recurs, it is assumed there is some cause of malfunctions. In such a case, handle the error according to the table given below.
  • Page 42 Description of Cause Error handling procedure error ① Obstacles such as dust, etc. Bobbin-thread ○ Carry out maintenance referring to "4-2. Cleaning" p.35. winding is not gather on the moving section. carried out nor- ② Thread of the bobbin thread ○...

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