JUKI DDL-900A Instruction Manual
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JUKI DDL-900A Instruction Manual

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DDL-900A
INSTRUCTION MANUAL
COVERI

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Summary of Contents for JUKI DDL-900A

  • Page 1 DDL-900A INSTRUCTION MANUAL COVERI...

  • Page 2: Table Of Contents

    CONTENTS I. SPECIFICATIONS ..................1 II. SET-UP ......................3 1. Installation ............................3 2. Installing the pedal sensor ....................... 4 3. Installing the power switch (for CE) ....................4 4. Connecting the connector ....................... 5 5. How to install the power plug ......................6 6.

  • Page 3: Specifications

    DB × 1 (#14) #9 to 18, 134 (Nm 90) Nm 65 to 110 (for CE) Lubricating oil NEW DEFRIX OIL No.1 or JUKI CORPORATION GENUINE OIL 7 - Equivalent continuous emission sound pressure level (L ) at the workstation : A-weighted value of 81.0 dB;...
  • Page 4 DRAWING OF TABLE – 2 –...

  • Page 5: Set-Up

    II. SET-UP 1. Installation 1) Carry the sewing machine with two persons as 2) Do not put protruding articles such as the screw- shown in the figure above. driver and the like at the location where the sewing machine is placed. Do not hold the handwheel D.

  • Page 6: Installing The Pedal Sensor

    2. Installing the pedal sensor 1) Install the pedal sensor to the table with mounting screws ❶ supplied with the unit. It is necessary to install the pedal sensor at such a position that the connecting rod is perpendicu- lar to the table. 2) After the completion of installation of the pedal sensor on the table, place the sewing machine head on the table.

  • Page 7: Connecting The Connector

    4. Connecting the connector 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 installing the pedal sensor.

  • Page 8: How To Install The Power Plug

    5. How to install the power plug WARNING : 1. Be sure to attach the ground wire (green/yellow) to the specified location (on the ground side). 2. Take care not to allow terminals to come in contact with each other. 1) Connect the power cord to power plug ❶.

  • Page 9: Winding The Bobbin Thread

    7. Winding the bobbin thread 1) Insert the bobbin deep into the bobbin winder spindle ❶ until it will go no further. ❽ ❸ 2) Pass the bobbin thread pulled out from the ❶ spool rested on the right side of the thread stand following the order as shown in the figure on the left.

  • Page 10: Adjusting The Height Of The Knee Lifter

    8. 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. 1) The standard height of the presser foot lifted using the knee lifter is 10 mm.

  • Page 11: Lubrication

    If oil is added after the oil DEFRIX OIL No.1 (Part No. : 40157520) aligns with MAX. quantity exceeds MAX. or JUKI CORPORATION GENUINE OIL line B, the upper line B, neither blue line D nor red line E is shown.

  • Page 12: Adjusting The Amount Of Oil (Oil Splashes)

    11. Adjusting the amount of oil (oil splashes) WARNING : Be extremely careful about the operation of the machine since the amount of oil has to be checked by turning the hook at a high speed. (1) Confirmation of the amount of oil in the hook ①...
  • Page 13 (3) Sample showing the appropriate amount of oil in the hook 1) The amount of oil shown in the samples on the Appropriate amount of oil (small) left should be finely adjusted in accordance with Splashes of oil from the hook sewing processes.

  • Page 14: Attaching The Needle

    (6) Sample showing the appropriate amount of oil supplied to the face plate parts 1) The state given in the figure shows the appropri- Appropriate amount of oil (small) ate amount of oil (oil splashes). It is necessary to Splashes of oil from the thread take-up lever finely adjust the amount of oil in accordance with the sewing processes.

  • Page 15: Setting The Bobbin Into The Bobbin Case

    13. Setting the bobbin into the bobbin case 1) Pass the thread through thread slit A, and pull the thread in direction C. By so doing, the thread will pass under the tension spring and come out from notch B. 2) Check that the bobbin rotates in the direction of the arrow when thread is pulled.

  • Page 16: Adjusting The Height Of The Presser Bar

    17. 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. 1) Loosen setscrew ❶, and adjust the presser bar height or the angle of the presser foot.

  • Page 17: Thread Tension

    19. Thread tension (1) Adjusting the needle thread tension 1) The length of thread remaining at the needle tip ❶ after thread trimming is shortened by turning ten- sion regulating nut No. 1 ❶ clockwise in direction 2) It is lengthened by turning the nut counterclock- wise in direction B.

  • Page 18: Needle-To-Hook Relationship

    [For a DA needle] Loosen three setscrews of the hook, turn the Dimension F (mm) handwheel and align marker line D on ascending DDL-900A 0.04 to 0.10 the needle bar ❷ with bottom end of the needle bar lower bushing ❸.

  • Page 19: Tilt Of The Feed Dog

    24. 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. 1) The standard tilt (horizontal) of the feed dog is obtained when marker dot A on the feed bar shaft is aligned with marker dot B on feed rocker ❶.

  • Page 20: Counter Knife

    26. Counter 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. When sharpening again the counter knife ❶, extra special care must be taken on the handling of the knife.

  • Page 21: Adjustment Of The Pedal

    28. 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 1) Move pedal ❸ to the right or left as illustrated by the arrows so that motor control lever ❶...

  • Page 22: For The Operator

    III. FOR THE OPERATOR 1. Operating procedure of the sewing machine 1) Press power switch ❶ to turn the power ON. ❶ Power switch ❶ is in the ON state when the "I" mark side is pressed. It is in the OFF state when the "○"...

  • Page 23: Setting Procedure Of The Machine Head

    No. 95. switch . 2) Press 3) Select the machine head type by pressing switches ❾. For DDL-900A dL90 ❾ 4) After the selection of the type of the machine switch  to confirm the se- head, press lection.

  • Page 24: Operation Panel Built In The Machine Head

    3. Operation panel built in the machine head Ⓒ ❸ Ⓔ ❺ Display section A Ⓐ Ⓖ ❶ ❼ Ⓓ Ⓑ Ⓕ ❷ ❻ ❹ Ⓗ ❽ ❾ Used to change over the automatic reverse Used to change the contents displayed ❶...

  • Page 25: Operating Procedure Of The Sewing Pattern

    4. Operating procedure of the sewing pattern 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 stitching at sewing start and reverse feed stitching at sewing end can be separately pro- grammed.
  • Page 26 (3) Constant-dimension stitching pattern The constant-dimension stitching pattern can be set. [How to set the constant-dimension stitching] • Straight stitching switch ❼ to select the constant-dimension sewing pattern. 1) Press When the constant-dimension stitching pattern is enabled, LED Ⓖ lights up. 2) When the constant-dimension sewing pattern is selected, the number of stitches of process E can be set switch ❼...

  • Page 27: One-Touch Setting

    5. One-touch setting A part of function setting items can be easily changed in the normal sewing state. switch  held pressed (for two seconds Keep or more) to carry out setting. * If the indication shown on the screen does not change, keep the switch held pressed again.

  • Page 28: Setting Of Functions

    6. Setting of functions Set value for the function setting can be changed. 1) Turn the power ON while keeping switch  held pressed. The indication on the display section is changed to "n. ". The numeric character displayed on the right side of "n."...

  • Page 29: Production Support Function

    7. Production support function The production support function enables "sewing counting", "bobbin-thread counting" and "number of stitches counting". Ⓔ Ⓒ switch  is pressed while the sew- 1) When Ⓐ ing machine is in the sewing state, the product Ⓕ support function is invoked.
  • Page 30 [Bobbin thread counting function] 1) Operate this function in the state where sewing is Ⓒ finished. The value on the counter cannot be changed if Ⓐ thread trimming has not been carried out. Ⓕ 2) The value on the counter is reset to the initial Ⓓ...

  • Page 31: Function Setting List

    8. Function setting list Ref. Item Description Setting range Default page Soft start function The number of stitches to be sewn at a low speed when the soft-start function is used at the start of sewing. (* This setting is enabled when the thread clamp function is in the OFF 0 to 9 state.) (Stitches)
  • Page 32 Ref. Item Description Setting range Default page Thread trimming Thread trimming function by reverse feed stitching on the way function by reverse feed 0 : Automatic thread trimming function after completion of reverse feed stitching on the way stitching on the way is not operative. 1 : Automatic thread trimming after completion of reverse feed stitching on the way is performed.
  • Page 33 Ref. Item Description Setting range Default page Function of stop immedi- Function at the time of completion of reverse feed stitching at the start of ately after reverse feed sewing stitching at the start of 0 : Not provided with the function of temporary stop of the sewing ma- sewing chine at the time of completion of reverse feed stitching at the start of sewing...
  • Page 34 Ref. Item Description Setting range Default page * 177 Thread clamp AK oper- Function for setting the time for turning ON the AK which operates when 0 to 1000 ating time the thread clamp is used. (ms) 181 Setting of a target value A target value for the sewing counter of the production support function for the production sup- is set.

  • Page 35: Detailed Explanation Of Selection Of Functions

    9. Detailed explanation of selection of functions ① Selection of the soft-start function (Function setting No. 1) The needle thread may fail to interlace with the bobbin thread at the start of sewing when the stitching pitch (stitch length) is small or a thick needle is used. To solve such problem, this function (called “soft- start”) is used to limit the sewing speed, thereby assuring successful formation of the starting stitches.
  • Page 36 Example) To assign the thread trimming function to the input port "i01" 1) Select function setting No. 12 with the operating procedure of function setting procedures 1) through 3). switch . 2) Press 3) Select a port (for example, "i1") to be set by pressing switch- es ❾.
  • Page 37 Input function list Function Abbre- Function item Remarks code viation No function (Standard setting) Needle up / down compensating Every time the switch is pressed, normal feed stitching by half stitching stitch is performed. (Same operation as that of up / down com- pensating stitching switch on the panel.) Back compensating stitching Reverse feed stitching is performed at low speed while the...
  • Page 38 Output function list Function Abbre- Function item Remarks code viation No function (Standard setting) Thread trimming output Output of thread trimming signal Thread wiper output Output of thread wiper signal Thread release output Output of thread release signal Presser lifter output Output of presser lifting signal Reverse feed stitching output Output of reverse feed stitching signal...
  • Page 39 ④ Needle up/down switch function changeover function (Function setting No. 22) The needle up/down switch function can be changed over between the needle up/down compensation and one stitch compensation. 0 : Needle up / down compensating stitching 1 : One stitch compensating stitching ⑤...
  • Page 40 Actions under each setting state ❶ Used as the normal reverse feed stitching touch-back switch. ❷ Used for reinforcing seam (press sewing) of the pleats. (It works only when the sewing machine is running.) ❸ Used for reinforcing seam (press sewing) of the pleats. (It works either when the sewing machine stops or when the sewing machine is running.) ❹...
  • Page 41 ⑨ Compensation of timing of the solenoid for reverse feed stitching (Function setting No. 51 to 53) When the normal and reverse feed stitches are not uniform under the automatic reverse feed stitching action, this function can change the ON / OFF timing of the solenoid for back tack and compensate the timing.
  • Page 42 ⑩ Foot lift function after thread trimming (Function setting No. 55) This function can automatically lift the presser foot after thread trimming. This function is effective only when it is used in combination with the AK device. 0 : OFF Function of automatically lifting the presser foot is not provided. (Presser foot does not automatically go up after thread trimming.) 1 : ON Function of automatically lifting the presser foot is provided.
  • Page 43 ⑭ Function of stop immediately after the reverse feed stitching at the start of sewing (Function set- ting No. 60) This function temporarily stops the sewing machine even when keeping depressing the front part of the pedal at the time of completion of process of reverse feed stitching at the start of sewing. It is used when sewing a short length by reverse feed stitching at the start of sewing.
  • Page 44 ⑲ Function of pedal curve selection (Function setting No. 87) This function can perform the selection of the curve of sewing speed of the sewing machine against the depressing amount of the pedal. Change to this function when you feel that inching operation is hard or that pedal response is slow. 0 : Sewing speed in terms of the depressing amount of the pedal increases linearly.

  • Page 45: Automatic Compensation Of Neutral Point Of The Pedal Sensor

    10. Automatic compensation of neutral point of the pedal sensor Whenever the pedal sensor, spring, etc. are replaced, be sure to perform following operation : If you place your foot or any object on the pedal, the pedal will not operate properly. Operate the pedal with nothing placed on it.

  • Page 46: Selection Of The Pedal Specifications

    11. Selection of the pedal specifications When the pedal sensor has been replaced, change the set value of function setting No. 50 according to the newly connected pedal specifications. 0 : KFL 1 : PFL Pedal sensor with two springs located at the back part of the pedal type is PFL, and that with one spring type is KFL.

  • Page 47: Selecting Procedure Of The Key-Lock Function

    13. Selecting procedure of the key-lock function Setting of the number of stitches for a pattern can be prohibited by enabling the key lock function. Display section A switch ❻ 1) Turn ON the power switch with switch ❽ held pressed. 2) "KL.on"...

  • Page 48: Led Hand Light

    15. LED hand light WARNING : In order to protect against personal injury due to unexpected start of the sewing machine, never bring hands near the needle entry area or place foot on the pedal during the adjustment of intensity of the LED. * This LED is intended to improve operability of the sewing machine and is not intended for maintenance.

  • Page 49: Maintenance

    IV. MAINTENANCE 1. Adjusting the machine head 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. 1) Turn the power ON while keeping switch  and...

  • Page 50: Error Codes

    2. Error codes In case of the following, check again before you judge the case as trouble. Phenomenon Cause Corrective measure When tilting the sewing machine, When tilting the sewing machine Tilt the sewing machine after turning the buzzer beeps and the sewing without turning OFF the power switch, OFF the power.
  • Page 51 Error code list Description of error Cause of occurrence expected Items to be checked detected E000 Execution of data • When the machine head is changed. initialization (This is • When the initialization operation is exe- not the error.) cuted. E007 Overload of motor •...
  • Page 52 Description of error Cause of occurrence expected Items to be checked detected E811 Supply voltage fault • When voltage higher than guaranteed • Check whether the supply voltage which one is inputted. falls outside the "rated voltage ± 10 %" is •...

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