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JUKI DDL-8700A-7 Instruction Manual

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ENGLISH
DDL-8700a-7
INStructIoN MaNuaL


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Summary of Contents for JUKI DDL-8700A-7

  • Page 1 ENGLISH DDL-8700a-7 INStructIoN MaNuaL...

  • Page 2: Table Of Contents

    coNtENtS !. SPEcIFIcatIoNS ..................1 @. SEt-uP ...................... 3 1. Installation ........................3 2. Installing the pedal sensor ..................4 3. Installing the power switch ..................4 4. attaching the connecting rod ................... 6 5. Winding the bobbin thread ..................7 6.
  • Page 3 11. Setting of the auto lifter function ................. 44 12. Selecting procedure of the key-lock function ............. 45 13. removing the rear cover ..................46 14. connection of the pedal of standing-work machine .......... 48 15. External input / output connector ................ 48 16.

  • Page 4: Specifications

    DB x  (#4) #9 to 8 DB x  (#2) #20 to 23 Lubrcatng ol JUKI MACHINE OIL #7 JUKI MACHINE OIL #7 • the sewing speed will vary depending on the sewing conditions. • the sewing speed preset at the time of shipping ..aS-7 : 4,000sti/min.
  • Page 5 DraWING oF taBLE – 2 –...

  • Page 6: Set-Up

    @. SEt-uP 1. Installation Carry the sewng machne wth two persons as Do not put protrudng artcles such as the screw- shown in the figure above. drver and the lke at the locaton where the sew- (caution) Do not hold the handwheel. ng machne s placed.

  • Page 7: Installing The Pedal Sensor

    2. Installing the pedal sensor The explanaton apples to the case the pedal sensor s nstalled on the table for the DDL-8700A-7. Install the pedal sensor on the table by means of mountng bolt asm. 1 suppled wth the unt. At ths tme,...
  • Page 8 1ø 100V-120V Pedal sensor cable ac cable Power switch White 220V-240V Staples (large) Green/ Black Yellow cable draw-out Staples (small) Pedal sensor hole White 3ø 200V-240V Frstly attach the staple suppled wth the unt as accessores to the cable. Then, hammer them nto the sewng machne table.

  • Page 9: Attaching The Connecting Rod

    4. attaching the connecting rod WarNING : to protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and a lapse of 5 minutes or more. Fx connectng rod 1 to nstallng hole B of 3) The pressure ncreases as you turn reverse de- pedal lever 2 wth nut 3 .

  • Page 10: Winding The Bobbin Thread

    5. Winding the bobbin thread Insert the bobbn deep nto the bobbn wnder spndle 1 untl t wll go no further. Pass the bobbn thread pulled out from the spool rested on the rght sde of the thread stand following the order as shown in the figure on the left.

  • Page 11: Adjusting The Height Of The Knee Lifter

    6. adjusting the height of the knee lifter WarNING : Be sure to turn the power oFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine. The standard heght of the presser foot lfted usng the knee lfter s 0 mm. You can adjust the presser foot lft up to 3 mm usng knee lfter adjust screw 1 .

  • Page 12: Lubrication

    2,000 sti/min or less. 2. For the oil for hook lubrication, purchase JuKI NEW DEFrIX oIL No. 1 (Part No. : MD- FrX1600c0) or JuKI MacHINE oIL #7 (Part No. : MML007600ca).
  • Page 13 (2) adjusting the amount of oil (oil spots) in the hook ) Turnng the ol amount adjustment screw attached on the hook driving shaft front bushing in the “+” drecton (n drecton A ) wll ncrease the amount of oil (oil spots) in the hook, or in the “–” direction (in drecton B ) wll decrease t.

  • Page 14: Attaching The Needle

    (5) adjusting the amount of oil supplied to the face plate parts Adjust the amount of ol suppled to the thread take-up and needle bar crank 2 by turnng ad- just pn 1 . The mnmum amount of ol s reached when marker dot A s brought close to needle bar crank 2 by turnng the adjust pn n drecton B .

  • Page 15: Setting The Bobbin Into The Bobbin Case

    11. Setting the bobbin into the bobbin case Pass the thread through thread slt A , and pull the thread n drecton C . By so dong, the thread wll pass under the tenson sprng and come out from notch B . Check that the bobbn rotates n the drecton of the arrow when thread s pulled.

  • Page 16: Adjusting The Height Of The Presser Bar

    15. adjusting the height of the presser bar WarNING : Be sure to turn the power oFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine. Loosen setscrew 1 , and adjust the presser bar heght or the angle of the presser foot.

  • Page 17: Thread Tension

    17. thread tension (1) adjusting the needle thread tension The length of thread remanng at the needle tp after thread trmmng s shortened by turn- ng tenson regulatng nut No.  1 clockwse n drecton A . It s lengthened by turnng the nut counterclock- wse n drecton B .

  • Page 18: Needle-To-Hook Relationship

    20. Needle-to-hook relationship WarNING : Be sure to turn the power oFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine. (1) adjust the timing between the needle and the hook as follows : Turn the handwheel to brght the needle bar down to the lowest pont of ts stroke, and loosen setscrew 1 .

  • Page 19: Tilt Of The Feed Dog

    22. tilt of the feed dog WarNING : Be sure to turn the power oFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine. The standard tlt (horzontal) of the feed dog s obtaned when marker dot A on the feed bar shaft s algned wth marker dot B on feed rocker 1 .

  • Page 20: Cunter Knife

    24. cunter knife WarNING : Be sure to turn the power oFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine. If the knfe does not cut thread sharply, mmedately re-sharpen counter knfe 1 as llustrated n Fg. C and re-nstall t properly.

  • Page 21: Adjustment Of The Pedal

    26. adjustment of the pedal WarNING : Be sure to turn the power oFF before the following work in order to prevent personal injury due to unintentional starting of the sewing machine. (1) Installing the connecting rod Move pedal 3 to the rght or left as llustrated by the arrows so that motor control lever 1 and connectng rod 2 are straghtened.

  • Page 22: For The Operator

    #. For tHE oPErator 1. operating procedure of the sewing machine ) Press ON button 1 of the power swtch to turn ON the power. (caution) If the backlight of the operation panel does not light up after the power switch is turned oN, immediately turn the power oFF and check the voltage.
  • Page 23 Reverse feed sttchng at the begnnng of sew- ng, reverse feed sttchng at the end of sewng and varous sewng patterns can be set on bult- n panel 6 of the machne head. 5) For some types of the sewng machne heads, reverse feed s performed by pressng touch-back swtch 7 .

  • Page 24: Built-In Panel Of The Machine Head

    2. Built-in panel of the machine head swtch : Used for changng over effectve/neffectve of the reverse feed sttchng pattern. swtch : Used for changng over effectve/neffectve of the overlapped sttchng pattern. switch : Used for confirming the contents of setting and for changing over effective/ineffective of the reverse feed sttchng at sewng start.

  • Page 25: Operating Procedure Of The Sewing Pattern

    3. operating procedure of the sewing pattern (caution) refer to the Instruction Manual for each operation panel for how to operate sewing patterns us- ing other operation panel than the built-in panel of the machine head. (1) reverse feed stitching pattern Reverse feed sttchng at sewng start and reverse feed sttchng at sewng end can be separately pro- grammed.
  • Page 26 (2) overlapped stitching pattern Overlapped sttchng pattern can be programmed. A : Number of sttches of normal sttchng settng 0 to 5 sttches B : Number of sttches of reverse sttchng settng 0 to 5 sttches C : Number of sttches of normal sttchng settng 0 to 5 sttches D : Number of tmes of repetton 0 to 9 tmes...

  • Page 27: One-Touch Setting

    4. one-touch setting A part of functon settng tems can be easly changed n the normal sewng state. (caution) For the setting of functions other than those covered in this part, refer to "#-6. Setting of func- tions" p. [one-touch setting procedure] Keep swtch 7 held pressed for one second to place the panel n the functon settng mode.

  • Page 28: Production Support Function

    5. Production support function The producton support functon conssts of three dfferent functons (sx dfferent modes) such as the produc- ton volume management functon, operaton measurng functon and bobbn counter functon. Each of them has ts own producton support effect. Select the approprate functon (mode) as requred. ■...
  • Page 29 Sewing can be performed with the production support data displayed on the control panel. [Basic operation of the production support modes] When switch 7 is pressed in the normal sewing state, LED E lights up to enter the pro- duction support mode. Production support function can be changed over by pressing switch 3 or...
  • Page 30 table 2: Mode resetting operation Swtch 5 (held pressed for 2 Swtch 5 (held pressed for 4 sec- Mode name seconds) onds) Target No. of pcs. dsplay mode Resets the actual number of peces Resets the dfference between target (F00) number of peces and actual number of peces Target/actual No.

  • Page 31: Setting Of Functions

    6. Setting of functions Functions can be selected and specified. (caution) refer to the Instruction Manual for each operation panel for how to operate sewing patterns us- ing other operation panel than the built-in panel of the machine head. Turn ON the power wth swtch 7 held pressed.

  • Page 32: Function Setting List

    7. Function setting list Item Descrpton Settng range Indcaton of functon settng Ref. page Soft start The number of sttches to be sewn at a low speed when the soft- functon start functon s used at the start of sewng. 0 to 9 0 : The functon s not selected.
  • Page 33 Item Descrpton Settng range Indcaton of functon settng Ref. page 22 Needle up/down Functon of the needle up/down correcton swtch s changed correcton over. swtch 0 : Needle up/down compensaton changeover  : One sttch compensaton functon 25 Thread trmmng Thread trmmng operaton after movng the needle away from operaton after ts upper or lower poston by turnng the handwheel by hand s...
  • Page 34 Item Descrpton Settng range Indcaton of functon settng Ref. page 50 Pedal Type of pedal sensor s selected. specification 0 : KFL  : PFL “#-10. Selection of the pedal specifications” p.43. Refer to 5 Compensaton of Compensaton of startng the solenod for reverse feed sttchng solenod-on tmng when reverse feed sttchng at the start of sewng s performed.
  • Page 35 Item Descrpton Settng range Indcaton of functon settng Ref. page Pedal curve s selected. (Improvng pedal nchng operaton) 87 Functon of pedal curve selecton Number of rotations 0//2 Pedal stroke Automatc UP stop functon s set mmedately after turnng ON the 90 Intal moton up power.

  • Page 36: Detailed Explanation Of Selection Of Functions

    8. Detailed explanation of selection of functions 1 Selection of the soft-start function (Function setting No. 1) The needle thread may fal to nterlace wth the bobbn thread at the start of sewng when the sttchng ptch (stitch length) is small or a thick needle is used. To solve such problem, this function (called “soft-start”) is used to lmt the sewng speed, thereby assurng successful formaton of the startng sttches.
  • Page 37 8 Selection of the optional input/output function (Function setting No. 12) Select functon settng No. 2 wth the operatng pro- cedure of functon settng procedures ) through 3). Select the tems of "End", "n" and "ouT" wth keys 5 and 6 . [When "in"...
  • Page 38 Input function list Functon Abbreva- Functon tem Remarks code ton No functon (Standard settng) Needle up / down compensatng Every tme the swtch s pressed, normal feed sttchng sttchng by half sttch s performed. (Same operaton as that of up / down compensatng sttchng swtch on the panel.) Back compensatng sttchng Reverse feed sttchng s performed at low speed whle the...
  • Page 39 Input function setting connectors Connector No. Pn No. Dsplay No. Intal value of functon settng CN36 noP (No functon settng) CN54 noP (No functon settng) CN50 SoFT (Soft-start speed lmt nput) CN36 bT (Reverse feed sttchng swtch nput) CN50 LnH (Input of prohbton of depress on front part of pedal) TSW (Thread trmmng swtch nput) LSSW (Low-speed revoluton swtch nput) CN39...
  • Page 40 9 Sewing counting function (Function setting No. 14) The functon counts up every tme thread trmmng s completed and counts the number of completon of the sewng process. 0 : off Sewng countng functon s noperatve.  : on Sewng countng functon s operatve. (Every tme thread trmmng s performed) 2 : on External sewng counter swtch nput.
  • Page 41 !3 Function of reverse feed stitching on the way (Function setting Nos. 30 to 33) Functons of the lmt of number of sttches and thread trmmng command can be added to the touch back swtch on the sewng machne head. Functon settng No.
  • Page 42 !5 Holding time of lifting presser foot (Function setting No. 47) Ths functon automatcally lowers the presser foot when the tme set wth the settng No. 47 has passed after lftng the presser foot. When the pneumatc type presser foot lfter s selected, the holdng tme control of lftng presser foot s lmt- less regardless of the set value.
  • Page 43 !7 Foot lift function after thread trimming (Function setting No. 55) Ths functon can automatcally lft the presser foot after thread trmmng. Ths functon s effectve only when t s used n combnaton wth the AK devce. 0 : off Functon of automatcally lftng the presser foot s not provded.
  • Page 44 @2 Function of soft-down of presser foot (with aK device only) (Function setting No. 70 and 49) Ths functon can softly lower the presser foot. Ths functon can be used when t s necessary to decrease contact nose, cloth defect, or slppage of cloth at the tme of lowerng the presser foot.
  • Page 45 @ 7 Initial motion uP stop position move function (Function setting No. 90) Effectve/neffectve of automatc return to UP stop poston mmedately after turnng ON the power can be set. 0 : Ineffectve  : Effectve @8 Function added to the needle up / down compensating switch (Function setting No. 93) One sttch operaton can be performed only when the needle up / down compensatng swtch s pressed at the tme of upper stop mmedately after turnng ON the power swtch or upper stop mmedately after thread trmmng.

  • Page 46: Automatic Compensation Of Neutral Point Of The Pedal Sensor

    9. automatic compensation of neutral point of the pedal sensor Whenever the pedal sensor, sprng, etc. are replaced, be sure to perform followng operaton : Pressng swtch 4 , turn ON the power swtch. Compensated value s dsplayed on ndcator B . (caution) 1.

  • Page 47: Setting Of The Auto Lifter Function

    11. Setting of the auto lifter function WarNING : When the solenoid is used with the air drive setting, the solenoid may be burned out. So, do not mistake the setting. When the auto-lfter devce (AK) s attached, ths functon makes the functon of auto-lfter work. Turn ON the power swtch wth swtch 5 held pressed.

  • Page 48: Selecting Procedure Of The Key-Lock Function

    12. Selecting procedure of the key-lock function Settng of the number of sttches for a pattern can be prohbted by enablng the key lock functon. Turn ON the power swtch wth swtch 5 swtch 6 held pressed. "KEY LOCK" s dsplayed on ndcators A and B wth a blp to make the key-lock functon ef- fectve.

  • Page 49: Removing The Rear Cover

    13. removing the rear cover WarNING : to prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine, remove the cover after turning oFF the power switch and a lapse of 5 minutes or more. to prevent personal injuries, when a fuse has blown out, be sure to replace it with a new one with the same capacity after turning oFF the power switch and removing the cause of the blown-out of the fuse.
  • Page 50 Remove two screws 3 from the lower part of the rear cover. Remove screw 4 from the rear face of the rear cover. Move the rear cover backward and carefully tlt – 47 –...

  • Page 51: Connection Of The Pedal Of Standing-Work Machine

    DC5V, –5mA 2 SOFT Input Rotation speed is limited to the soft-speed while “L” signal is DC5V, –5mA beng nputted. 3 SGND JUKI genune part No. Connector : Part No. HK065030 Pn contact : Part No. HK06540000 – 48 –...

  • Page 52: Connection Of The Material End Sensor

    (caution) 1. Be sure to turn oFF the power before connecting the connector. 2. For the use of the material end sen- sor, refer to the Instruction Manual attached to the material end sensor. JUKI genune part number Connector HK04230040 Pn contact HK042340000...

  • Page 53: Initialization Of The Setting Data

    17. Initialization of the setting data All contents of functon settng of DDL-8700A-7 can be returned to the standard set values. Turn ON the POWER swtch wth all of swtch 4 , swtch 5 and swtch 6 held pressed. "rS" s dsplayed on ndcator B wth a blp to start ntalzaton.

  • Page 54: Maintenance

    $. MaINtENaNcE 1. replacing the fuse Check that the sew- ng machne s at rest. Press the OFF button of the power swtch to turn the power OFF. Check that the power swtch s n the OFF state. Remove the power cord from the plug receptacle.

  • Page 55: Adjusting The Machine Head

    2. adjusting the machine head (caution) When the slip between the white marker dot on the handwheel and the concave of the cover is excessive after thread trimming, adjust the angle of the machine head by the operation below. Smultaneously pressng swtch 4 and swtch 5 , turn ON the power swtch.

  • Page 56: Connector Layout Drawing

    3. connector layout drawing WarNING : • to protect against personal injury resulting from abrupt start of the sewing machine, be sure to turn the power OFF, unplug the machine and wait for five minutes or more before connecting the connectors.

  • Page 57: Error Codes

    4. Error codes In case of the followng, check agan before you judge the case as trouble. Phenomenon cause corrective measure When tltng the sewng machne, the When tltng the sewng machne wth- Tlt the sewng machne after turnng buzzer beeps and the sewng machne out turnng OFF the power swtch, Ac- OFF the power.

  • Page 58: Checking Procedure Of The Error Code

    In addton, there are the followng error codes n ths devce. These error codes nterlock (or lmt functon) and nform the problem so that the problem s not enlarged when any problem s dscovered. When you re- quest our service, please confirm the error codes. [checking procedure of the error code] Turn ON the power swtch wth swtch 3...
  • Page 59 Description of error detected cause of occurrence expected Items to be checked E302 Fall detecton swtch falure • When fall detecton swtch s nput n the • Check whether the machne head s tlted (When the safety swtch state that the power s turned ON. wthout turnng OFF the power swtch (sew- works) •...
  • Page 60 Description of error detected cause of occurrence expected Items to be checked E8 Overvoltage • When voltage hgher than guaranteed one • Check whether the appled power voltage s s nputted. higher than the rated voltage + (plus) 10% or •...

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