JUKI AC-172N-1790AN Instruction Manual
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JUKI AC-172N-1790AN Instruction Manual

Buttonholing indexer
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AC-172N-1790AN
INSTRUCTION MANUAL

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  • Page 1 AC-172N-1790AN INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    CONTENTS I. MACHINE OPERATION ................1 1. GENERAL ........................1 1-1. Features ............................1 1-2. Configuration of the main parts ....................2 1-3. Operating precautions ........................3 2. SPECIFICATIONS ......................3 3. INSTALLATION ......................4 3-1. Removing the machine head fixing plate ..................4 3-2.
  • Page 3 2. OPERATION OF THE SINGLE UNIT OF SEWING MACHINE AND SETTING PROCEDURE (LBH MODE) ..................69 2-1. LCD display section at the time of independent sewing ............69 2-2. Performing LBH pattern No. selection ..................73 2-3. Performing sewing shape selection ................... 74 2-4.
  • Page 4 11-5. Performing setting of the production control information ........... 163 11-6. Observing the working measurement information ............... 166 12. TRIAL SEWING FUNCTION ..................169 12-1. Performing trial sewing ......................169 12-2. Vector parameter list........................ 172 12-3. Thread tension value display color list .................. 173 13.

  • Page 5: Machine Operation

    I. MACHINE OPERATION 1. GENERAL Mainly consisting of a sewing machine, preset board, carriage, stacker, the AC-172N-1790AN indexer is designed to automatically carry out a series of operations starting with sewing buttonholes on the front top-center strips of men’s shirts, etc. and ending with stacking of workpieces.

  • Page 6: Configuration Of The Main Parts

    1-2. Configuration of the main parts ❾ ❶ ❺ ❷ ❹ ❼ ❽ ❻ ❸ ❶ Sewing machine head ❼ Knee switch  Tool box ❷ Preset board ❽ Pause switch  Thread stand ❸ Carriage ❾ Hand switch  Filter box ❹...

  • Page 7: Operating Precautions

    Max. 25 mm X sewing width 4 mm Size (knife size) 6.4 to 19.1 mm (1/4 to 3/4”) Needle DPx5 #11J to #14J Lubricating oil JUKI New Defrix Oil No.1 Number of stitches 0.2 to 2.5 mm – 3 –...

  • Page 8: Installation

    3. INSTALLATION 3-1. Removing the machine head fixing plate The machine head fixing plate, which has been factory-installed on the sewing machine head at the time of delivery, should be removed. ❶ ❷ ❶ Front guard Rear guard ❷ Front auxiliary connecting plate for machine head [Removing the front guard] ❸...

  • Page 9: Connecting The Power Supply

    3-2. Connecting the power supply 1) Check to be sure that the power supply in use is 200 to 240 VAC. 2) First confirm that power switch in “OFF”, then connect the power cord to the power supply. 3) Turn the power ON. Check that the blower motor is rotating.

  • Page 10: Lubrication

    1) Lubricating oil to oiling tank ○ Fill the oiling tank with JUKI New Defrix Oil No.1 up to the level indicated by “MAX” ❶ . When supplying oil to the oil tank through the lubricating hole, take care not to allow dust to en- ter the oil tank.
  • Page 11 3) How to check the hook oil quantity 1. In preparation for checking the hook oil quan- tity, cut a sheet of paper to make a piece of paper size of which is approximately 40 mm x 100 mm. 2. After the adjustment of the oil quantity, start the sewing machine at a high speed (3,600 40 mm sti/min) by 100 times or more.

  • Page 12: Installing The Panel

    3-5. Installing the panel 1) Fix operation panel mounting plate ❶ on base plate ❷ . Use setscrews ❸ (M5 x 25) supplied ❸ with the unit. ❶ ❷ 2) Install operation panel ❹ . ❹ 3) Open cover ❺ of operation panel ❹ . Connect secured panel cord ❻...

  • Page 13: Installing The Eye Protection Cover

    3-6. Installing the eye protection cover WARNING : Be sure to attach this cover to protect the eyes from the disperse of needle breakage. Be sure to install and use eye protection cover ❶ and use the sewing machine. ❶ Operator 3-7.

  • Page 14: Installing The Marking Light

    3-9. Installing the marking light WARNING 1. If the laser light directly enters the eye, eyesight trouble may be caused. Do not look into the laser inlet/outlet. 2. Never perform installing/removing of the marking lamp with the power turning ON. In addition, do not use the light other than marking.
  • Page 15  on preset table Adhere seal  by affixing the right and left edges of the seal at right and  on the left marking-off lines table. The location of the seal to be adhered on the preset table can be found by align- ing the scale "21"...

  • Page 16: Adjusting The Marking Light

    3-10. Adjusting the marking light Refer to "II-3-1. Changing procedure of memory switch data" p.110 for the operation procedure of the memory switch. Turn the power ON. Set the memory switch K24 (Marking light setting) to the "Enable" A. * Setting procedure in the case the distance from ❶...

  • Page 17: Installation And Adjustment Of The Material Edge Detecting Sensor (Asm.)

    3-11. Installation and adjustment of the material edge detecting sensor (asm.) This setting is only available under the men's garment mode. Be aware that the sewing machine carries out its normal operation even if the material edge detecting sensor is installed. (1) Assembling the material edge detecting sensor Put screw ❷...
  • Page 18 Secure material edge detecting sensor cord by means of cable clip  together with the hand-switch cord and the air hose. Open the cover of the control box.  Black Connect brown cord (contact) of  Blue  Brown the material edge detecting sensor junction cord  to sensor junction cord B asm.
  • Page 19 (3) Adjusting the material edge detecting sensor Refer to "II-3-1. Changing procedure of memory switch data" p.110 for the operation procedure of the memory switch. Turn the power ON. Set K23 (material edge detecting sensor setting) in "enable" A. Set U53 (jump functions setting) in "enable jump" B. –...
  • Page 20 Set the amount of feed from the material edge C at 65 mm under the AC mode. Press the ready key to bring the sewing machine into the sewing state. Then, place a piece of cloth of approxi- mately A4-size(210mmx297mm) on the preset section. Actuate the preset device to start sewing.
  • Page 21 [Precautions to be taken in setting] It is recommended to place the material at the location that is 65 ± 5 mm from the center of needle as far as possible. In the case you want to set the amount of feed from the material edge to the first buttonhole to 60 mm or less, in particular, place the material in the range of 60 and 65 mm from the center of needle.

  • Page 22: Assembly And Adjustment Of The Auxiliary Clamp

    3-12. Assembly and adjustment of the auxiliary clamp WARNING : So as to prevent accident resulting from abrupt start of the sewing machine, be sure to turn the power OFF and discharge air before starting assembly and adjustment. (1) Assembling the auxiliary clamp Remove five screws ❶...
  • Page 23 Fix auxiliary clamp ❾ asm. ❾ with three screws  . Tem- porarily fix screws ❻ and ❼ and the washer, removed in step 3), with aligned with the mark-off ❻ lines. ❼ Supply air. Securely tighten screws ❻ and ❼ with setting plate support  pressed against preset table  .
  • Page 24 Slide the cover of duct  to place two air hoses  in the duct. Then, close the cover of duct  . Replace switch cable  with the cable which is connected to "CN219." – 20 –...
  • Page 25 Discharge air. Remove screw  and nut  . Then, loosen screw  to slide end block  in the direction of the arrow until it comes off. 10) Install solenoid valve  and end block  by sliding them in the direction of the arrow. At this time, check to be sure that end block  and solenoid valve  are respectively provided with three bushings  on one side.
  • Page 26 12) Open the control box. Connect solenoid valve cord  to the CN 106 connectors (red: 19-pin, black: 20- pin). * Carefully check the wiring location of the red and black connectors. ❷ ❶ ❶ 13) Install right cover ❷ and secure with screws ❶ . 14) Fit material presser rubber cushion  on clamp  .
  • Page 27 16) Tighten two setscrews  to leave a 10-mm long slot in the top surface of the clamp  . When the setscrews are tight- ened to leave a 20-mm long slot there, clamp  is posi- tioned as shown in the figure. Solenoid valve switch 17) Turn ON the air source.
  • Page 28 (2) Adjusting the auxiliary clamp Refer to "II-3-1. Changing procedure of memory switch data" p.110 for the operation procedure of the memory switch. ① Selecting the start switch Set the memory switch U51 (Start switch selection) to the "Hand switch" A. ②...
  • Page 29 When you press knee switch ❾ , the cloth suc- tion device starts sucking the material and the auxiliary clamp comes down. When you press knee switch ❾ again, the cloth suction device stops sucking the material and the auxiliary clamp goes up. When you press hand switch  and release it, cloth suction lamp  lights up, the auxilia- ry clamp goes up and the preset table moves...

  • Page 30: Operation And Adjustment

    4. OPERATION AND ADJUSTMENT WARNING: Turn OFF the power before staring the work so as to prevent accidents caused by abrupt start of the sewing machine. 4-1. Operating switches and adjusting pneumatic components ❺ ❹ ❻ Workpiece Hand switch Preset adjusting knob detector switch Speed controller of the blower for...
  • Page 31 (3) Knee switch The height of the switch can be adjusted in the three stages. (It has been factory-adjusted to the middle stage at the time of delivery.) Loosen two screws ❶ in the reverse side of the knee switch, and fix the switch at a height where you can oper- ate it with ease.
  • Page 32 (7) Adjusting the air blower 1) The air blower is provided with four blow pipes ❺ as illustrated in the figure on the left. The soled ❶ ❷ ❻ arrows show the air blowing direction of the respective pipes. The name and function of each components is as follows: ❶...
  • Page 33 4) Turn knob ❶ of the speed controller in the direc- tion of the arrow to increase the amount of air to ❶ be blown. After the adjustment, fix the knob at the adjusted position using locknut ❷ . ❷ Adjusting the amount of air to be blow while the machine is in operation is very dangerous.
  • Page 34 7) Adjusting the air blower for the needle bar When dust collected on the needle bar area falls and is caught in the seams, adjust the direction and strength of the air blower. The air blower blows dust away and prevents dust from falling under needle.
  • Page 35 (8) Vacuum adjusting metal fittings They are used to adjust the vacuum suction force of the preset board for sucking the workpiece. Adjust- ment is carried out by turning metal fitting ❶ . For the normal operation, ❷ in the metal fitting should not be closed.
  • Page 36 (10) Measure to be taken in the case of power interruption during operation If the electricity is cut off when material is being brought to the sewing position and preset board ❶ ❶ and carriage ❷ come in contact with each other, discharge air from the machine, slightly press pre- set board ❶...

  • Page 37: Operation Of The Sewing Machine

    4-2. Operation of the sewing machine (1) Inserting the needle 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 ascertaining that the motor is at rest. Hold needle with its recessed part facing toward the operator side A, insert the needle fully into the needle clamping hole, and tighten nee- dle setscrew ❶...
  • Page 38 (3) Threading the bobbin case Purl stitch Whip stitch ❶ ❹ ❷ Bobbin case Bobbin ❸ ❹ Rotating direction of bobbin and threading Fit the bobbin so that it rotates in the direction of the arrow. Pass the thread through thread slit ❶ , then through under the tension spring ❷ , again through thread slit ❸...
  • Page 39 (5) Installation of bobbin case 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 ascertaining that the motor is at rest. 1) Lift up and hold bobbin case latch lever between two fingers.
  • Page 40 (7) Removing and installing the bobbin case 1) When the bobbin thread counter is set and the operation is performed automatically, and bobbin thread runs out, the next start is not performed. ❶ In this state, carriage table ❶ is tilted in the direction of A, and it is simply performed to replace the bobbin.

  • Page 41: Adjusting The Seam Allowance

    4-3. Adjusting the seam allowance WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Adjust the seam allowance from the side end of the garment to the buttonhole (distance A in the figure), and from the top end the garment to the buttonhole (distance B, B’...

  • Page 42: Adjusting The Carriage Clamp

    4-4. Adjusting the carriage clamp WARNING: Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. (1) Adjusting the position of the clamps Adjust the position of the clamp only when you wish ❸...

  • Page 43: Adjusting The Sub Clamp

    4-5. Adjusting the sub clamp (1) Adjusting the cloth plate Cloth plate Preset board Preset board Cloth plate (at the 21 mm (at the 21 mm position) position) ± 0.5 Cloth plate Provide an equal lateral clearance between the preset board and the cloth plate. Provide a vertical clearance of 1 mm or less between the preset board and the cloth plate.
  • Page 44 (3) Adjusting the sub-clamp pressure Measure the pressure of the sub-clamp 150mm 150mm 150mm 150mm 85mm and adjust it properly. Drill holes ❶ to ❻ in a garment body according to the dimensions shown in the figure. Place the garment body on the sewing machine so that the six holes are on the same axes with the sub-clamps.

  • Page 45: Adjusting The Stacking Board Of The Stacker

    4-6. Adjusting the stacking board of the stacker WARNING: Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. If sewing garment bodies with pockets, adjust the ❶ stacking board following the steps described below. This adjustment allows the stacker to stack approxi- mately 140 pieces of garment bodies with pockets ( material : T/C board cloth ).

  • Page 46: Operation

    5. OPERATION ❼ ❹❺ ❷ ❸ ❻ ❶ ❶ Power switch ❷ Control panel ❸ Knee switch ❹ Hand switch ❺ Workpiece suction lamp ❻ Temporary stop switch ❼ Machine head pause switch WARNING: 1. The machine can be started in two different methods ; A and B modes, by changing over the memory switch data .
  • Page 47 When the switch is pressed, the following series of operation will be performed automatically [Series of the operation for men’s wear] The preset board moves forward and Index in the right direction Buttonhole Start feeds the material on the carriage. sewing (the carriage moves) The conveyer returns to its...

  • Page 48: Operation Section (With Regard To The Panel)

    II. OPERATION SECTION (WITH REGARD TO THE PANEL) 1. WHEN USING IP-420 1-1. Name of each section of IP-420 (Front) (Right side) ⑥ ⑦ ⑧ ⑨ ⑩ ① ⑪ ② ⑫ ③ ④ ⑤ ① Touch panel·LCD display section ② →...

  • Page 49: Buttons To Be Used In Common

    1-2. Buttons to be used in common The buttons which perform common operations in each screen of IP-420 are as follows : CANCEL button → This button closes the pop-up screen. In case of the data change screen, the data being changed can be cancelled.

  • Page 50: Basic Operation Of The Sewing Machine

    1-3. Basic operation of the sewing machine ① Turn ON the power switch. When the power is turned ON, the AC data input screen is dis- played. ② Select the pattern No. you desire to sew. When AC pattern selected button which is selected at present is pressed,selection of AC pattern No.

  • Page 51: Lcd Display Section Under Ac Mode

    1-4. LCD display section under AC mode (1) AC data input screen Button and display Description AC PATTERN NEW REGISTER AC pattern No. new register screen is displayed. button →Refer to "II-1-9. Performing new register of AC pattern." p.59. AC PATTERN COPY button AC pattern No.
  • Page 52 Button and display Description NUMBER OF BUTTONHOLES Number of buttonholes registered to AC pattern No. being selected at REGISTERED present is displayed. MEN'S/LADIES' WEAR Every time this button is pressed down, men's and ladies' wear can be SELECTION button changed over alternately. →...
  • Page 53 (2) Automatic sewing screen Button and display Description NUMBER OF BUTTONHOLES Number of buttonholes registered to AC pattern No. being selected at REGISTERED present is displayed. AC PATTERN NAME display Name registered to AC pattern No. during sewing is displayed. KNIFE CANCEL button Every time this button is pressed down, dropping of knife and non-dropping of knife can be changed over alternately.
  • Page 54 Button and display Description COUNTER CHANGEOVER Every time this button is pressed down, sewing counter and No. of pcs. button counter can be changed over. PATTERN No. display LBH sewing pattern No. registered to AC data is displayed. FEED AMOUNT display Feed amount is displayed.
  • Page 55 (3) Manual sewing screen Button and display Description SEWING MACHINE START When the button is pressed down, sewing of LBH pattern data set to the step fed at C or D starts. button CARRIAGE TILT/RAISE This button is displayed only when the carriage is located at the position of button origin.

  • Page 56: Performing Ac Pattern Selection

    1-5. Performing AC pattern selection ① Display the data input screen. Only in case of the AC data input screen (pink), AC pattern No. can be selected. In case of the sewing screen (green), press READY key and display the data input screen. ②...

  • Page 57: Performing Re-Sewing

    1-6. Performing re-sewing When temporary stop switch (A) or (B) is pressed during sewing under AC mode, the sewing machine interrupts sewing and stops. At this time, the error screen is displayed to inform that the temporary stop switch is pressed. ①...
  • Page 58 ② Return the presser. Press BACKWARD button (D), and the presser returns stitch by stitch. Press FORWARD key (E), and the press- er advances stitch by stitch. In addition, when CLOTH FEED, RIGHT button (F) is pressed, sewing data returns by one, and when CLOTH FEED, LEFT button (G) is pressed, sew- ing data advances by one.

  • Page 59: Winding Bobbin Thread

    1-7. Winding bobbin thread (1) Winding the bobbin ① Set the bobbin. Fit a bobbin fully onto the bobbin winder shaft. Then push the bobbin thread guide in the direc- tion of the arrow mark. ❶ ❸ ❷ ② Display the bobbin winding screen. Press BOBBIN WINDER button (A) in the AC data input screen (pink), the automatic sewing screen or manual sewing...

  • Page 60: Using Counter

    1-8. Using counter (1) Setting procedure of the counter ① Display the counter setting screen. When MODE key is pressed from the AC data input screen (pink), COUNTER SETTING button (A) is displayed on the screen. When this button is pressed, the counter setting screen is displayed.
  • Page 61 [ Sewing counter ] UP counter Every time the sewing of one shape is performed, the existing value is plussed by one. When the existing value is equal to the set value, the count-up screen is displayed. DOWN counter Every time the sewing of one shape is performed, the existing value is minus by one.
  • Page 62 ③ Change of counter set value In case of the sewing counter, press button (F) and in case of the No. of pcs. counter, press button (G) and the set val- ue input screen is displayed. Here, input the set value. ④...

  • Page 63: Performing New Register Of Ac Pattern

    1-9. Performing new register of AC pattern. For the way of performing new register of AC pattern, there are the equal interval input to set the number of buttonholes and the interval of buttons, and the individual input to individually set the buttonholes one by one. (1) Performing the equal interval input ①...
  • Page 64 ⑤ Select the equal interval input. Press ENTER button (F) to select the equal interval input, and the number of buttonholes input screen is displayed. ⑥ Input the number of buttonholes. Input the number of buttonholes to continuously sew with the ten (H •...
  • Page 65 ⑧ Select LBH sewing pattern No. Press UP/DOWN SCROLL buttons (O) and LBH sewing pattern No. buttons (P) which have been registered are changed over by turns. LBH sewing pattern No. and the contents of the sewing data are displayed in the buttons. Here, press the LBH sewing pattern No.
  • Page 66 (2) Performing the individual input. ① Display the data input screen. Only in case of the data input screen (pink), new register of AC pattern can be performed. ② Call AC pattern new register screen. Press NEW AC REGISTER button (A) and the AC pattern new register screen is displayed.
  • Page 67 ⑤ Select the individual input. When CANCEL button (F) is pressed, it means that the indi- vidual input is selected, and the AC data input screen is displayed. ⑥ Select LBH pattern No. When LBH PATTERN BUTTONHOLE No. INPUT button is pressed, the LBH pattern selection screen is displayed.
  • Page 68 ⑧ Input the feed amount. When FEED AMOUNT INPUT button (J) is pressed from AC data input screen, the feed amount input screen is displayed. Input the feed amount from the ten keys (K). Press ENTER button (L) to determine the feed amount value and the AC data input screen is displayed.

  • Page 69: Copying Ac Pattern

    1-10. Copying AC pattern The data of AC pattern No. which has been already registered can be copied to AC pattern No. which has not been registered. Overwriting copy of the pattern is prohibited. When you desire to overwrite, perform it after deleting the pat- tern once.

  • Page 70: Changeover Of Men's And Ladies' Wear

    1-11. Changeover of men's and ladies' wear. Perform changeover of men's and ladies' wear since men's and ladies' wear are different in the carriage direction of sewing products. ① Display AC data input screen. Display the AC data input screen (pink) of AC pattern No. you desire to sew.

  • Page 71: Naming The Pattern

    1-12. Naming the pattern As many as 14 characters can be inputted in each AC pattern. ① Display the AC data input screen. Only in case of the AC data input screen (pink), it is possible to input the name of pattern. ②...

  • Page 72: Changing Over The Pair Stack

    1-13. Changing over the pair stack The pair stack is the function for stacking the right and left garment bodies alternately. When this function is used, the sewing machine performs buttonholing on one side of the garment body and stacking it without performing buttonholing on the other side of the garment body. In the case the pair stack function is used, set the memory switch U54 "Pair stack"...

  • Page 73: Operation Of The Single Unit Of Sewing Machine And Setting Procedure (Lbh Mode)

    2. OPERATION OF THE SINGLE UNIT OF SEWING MACHINE AND SET- TING PROCEDURE (LBH MODE) 2-1. LCD display section at the time of independent sewing (1) LBH data input screen Button and display Description LBH PATTERN NEW REGISTER LBH pattern No. new register screen is displayed. button →...
  • Page 74 Button and display Description BOBBIN WINDING button Bobbin thread can be wound. "II-1-7. Winding bobbin thread" p.55. → Refer to LBH PATTERN SELECION LBH pattern No. being selected at present is displayed on the button, and button when the button is pressed, the LBH pattern No. change screen is displayed. →...
  • Page 75 (2) Independent sewing screen Button and display Description SEWING MACHINE START Sewing of the selected LBH pattern is started. button LBH PATTERN DATA LBH pattern data which is used in AC pattern data being selected at present AUTOMATIC TURN button (to is automatically turned.
  • Page 76 Button and display Description STEP STITCHING button When the button is pressed, the screen of step stitching to check needle entry point and to perform re-sewing is displayed. → Refer to "II-2-4. Performing re-sewing under LBH mode" p.75. NEEDLE THREAD TENSION Needle thread tension which is set to the pattern data during sewing is button displayed, and when the button is pressed, the needle thread tension...

  • Page 77: Performing Lbh Pattern No. Selection

    2-2. Performing LBH pattern No. selection ① Display the LBH data input screen. Only in case of the LBH data input screen (blue), LBH pattern No. selection can be performed. In case of the sew- ing screen (green), press READY key and in case of the AC data input screen (pink), press CHANGEOVER OF AC MODE AND LBH MODE button...

  • Page 78: Performing Sewing Shape Selection

    2-3. Performing sewing shape selection ① Display the LBH data input screen. Only in case of the LBH data input screen (blue), the selection of the sewing shape can be performed. ② Call the sewing shape selection screen. Press SEWING SHAPE button (A) and the sewing shape selection screen is displayed.

  • Page 79: Performing Re-Sewing Under Lbh Mode

    2-4. Performing re-sewing under LBH mode When temporary stop switch (A) or (B) is pressed during sewing under LBH mode, the sewing machine interrupts sewing and stops. At this time, the error screen is displayed to inform that the temporary stop switch is pressed.
  • Page 80 (1) To continue performing sewing from some point in sewing ① Release the error. Press RESET button (C) to release the error. Then the step motion screen is displayed. ② Return the presser. Press ONE STITCH RETURN button (D), and the presser returns stitch by stitch.
  • Page 81 (2) To perform sewing from the start ① Release the error. Press RESET button (C) to release the error, Then the step motion screen is displayed. ② Return the sewing product to the setting position. Press INITIAL POSITION TRAVEL button, (F) and the presser returns to the sewing product setting position (start posi- tion).

  • Page 82: Performing New Register Of Lbh Pattern

    2-5. Performing new register of LBH pattern ① Display the LBH data input screen. Only in case of the LBH data input screen (blue), new register of the LBH pattern can be performed. ② Call the LBH pattern new register screen. Press NEW LBH PATTERN REGISTER button (A) and the LBH pattern new register screen is displayed.
  • Page 83 ⑤ Select the 1st bar-tacking shape. Select the shape you desire to sew from among 5 kinds of the 1st bar-tacking shape buttons (F). When it is selected, the total sew- ing shape in which the 1st bar-tacking shape is used is displayed. ⑥...

  • Page 84: Sewing Shape List

    2-6. Sewing shape list 1) Square type 2) Round type 3) Radial square type 4) Radial type 5) Radial straight bar-tacking type 6) Radial taper 7) Eyelet square type 8) Eyelet radial type 9) Eyelet straight 10) Eyelet taper bar-tacking type bar-tacking type bar-tacking type 11) Semilunar type...

  • Page 85: Changing Sewing Data

    2-7. Changing sewing data (1) Changing procedure of sewing data ① Display the LBH data input screen. Only in case of the LBH data input screen (blue), change of the sewing data can be performed. ② Select the LBH pattern data. When LBH PATTERN DATA AUTOMATIC TURN button (A or B) is pressed, LBH pattern Nos.
  • Page 86 ⑤ Change the data. For the sewing data, there are the data item to change the numer- al and data item to select the pictograph. No. in pink color such (F) is put on the data item to change the numeral and the set value can be changed with the +/- button which is dis- played in the change screen.
  • Page 87 (2) Sewing data list Sewing data are those that can be inputted to 99 LBH patterns from LBH pattern 1 to 99 and can be in- putted to each LBH pattern. The sewing machine has been set in the state that the data which is necessary to set "With/ without edit" cannot be set at the time of your purchase.
  • Page 88 Setting Item Edit unit Remarks range 1st bar-tacking length 0.2 to 5.0 0.1mm This item sets length of bar-tacking on the rear side. Flow, Square Straight bottom type, bar-tack, bottom bottom Compensation of bar-tacking width, right -1.00 to 1.00 0.05mm This item adjusts left side outer shape of bar-tacking section in terms of overedging sec- tion.
  • Page 89 Setting Item Edit unit Remarks range Pitch at bar-tacking section 0.100 to 0.025mm 2.500 This item sets sewing pitch of bar-tacking sec- tion. Square Round Semi- type, top type,top lunar, Straight bar-tack, Flow, bottom bottom Square Round Semi- type, type, lunar, bottom bottom...
  • Page 90 Setting Item Edit unit Remarks range Crosswise compensation of needle entry of 0.0 to 1.0 0.1mm basting This item sets the amount to move needle en- try position to the right or left when performing basting more than two cycles. Compensation of left side position of -2.0 to 2.0 0.1mm...
  • Page 91 Setting Item Edit unit Remarks range ACT timing adjustment at the start of right -5 to 5 1 stitch overedging This item adjusts needle thread tension output start timing at right overedging section. ACT timing adjustment at the start of 2nd -5 to 5 1 stitch bar-tacking...
  • Page 92 Setting Item Edit unit Remarks range Knife motion at 1st cycle of double stitching *2, *3 This item sets "With/without motion" of cloth cutting knife at 1st cycle when double stitching is performed. : Normal knife motion : Normal knife motion Maximum speed limitation 400 to 4200 100 sti/min...

  • Page 93: Inputting The Work Clamp Type

    2-8. Inputting the work clamp type (1) Setting procedure of the work clamp type ① Display the LBH data input screen. Only in case of the LBH data input screen (blue), the contents of setting can be changed. ② Call the work clamp type selection screen. Press WORK CLAMP TYPE SELECTION button and the work clamp type selection screen is displayed.
  • Page 94 (2) Table of presser type Make the number in the frame of engraved part number of presser foot correspond to the type of work clamp. Type Part No. of presser foot Type 1 B1511771000 Type 2 B1511772000 Type 3 B1511773000 Type 5 ❶...

  • Page 95: Changing Needle Thread Tension

    2-9. Changing needle thread tension ① Display the LBH data input screen. Only in case of the LBH data input screen (blue), needle thread tension can be changed. ② Call the needle thread tension change screen. Press NEEDLE THREAD TENSION button (A) and the needle thread tension change screen is displayed.
  • Page 96 "II-2-7. Changing For the tension other than that at parallel section and at bar-tacking section, refer to sewing data" p.81. and "II-3-1. Changing procedure of memory switch data" p.110. Set value of tension at ① parallel section and ② bar-tacking section In case of the ra- Set value on panel dial eyelet shape,...

  • Page 97: Setting Procedure Of Sewing Data With/Without Edit

    2-10. Setting procedure of sewing data with/without edit ① Display the sewing data with/without edit setting screen. When continuing pressing (B) switch for three seconds, the sewing data with/without edit setting button (A) is dis- played on the screen. When this button is pressed, the sewing data with/without edit setting screen is displayed.

  • Page 98: Copying Lbh Sewing Pattern

    2-11. Copying LBH sewing pattern The sewing data of LBH pattern No. which has been already registered can be copied to LBH pattern No. which has not been registered. Overwriting copy of the pattern is prohibited. When you desire to overwrite, perform it after erasing the pattern once.
  • Page 99 ④ Input the pattern No. of copy destination. Input LBH pattern No. of copy destination with the ten keys (D). It is possible to retrieve the LBH pattern No. which is not used with buttons (E • F). ⑤ Start copying. Press ENTER button (G) and copying starts.

  • Page 100: Registering Sewing Data To Customize Button

    2-12. Registering sewing data to customize button Register parameters which are frequently used to CUSTOMIZE button and use them. Screen of the change of parameters which have been registered can be displayed by press only CUSTOMIZE button in the LBH data input screen (blue). (1) How to register ①...
  • Page 101 ③ Select the sewing data to be registered. Select the sewing data you desire to register with the sewing data buttons (C). When the selected button is pressed twice, the selection is released. ④ Register to the customize button. When ENTER button (D) is pressed, register to the cus- tomize button is finished and the customize button register screen is displayed.

  • Page 102: Changing Sewing Mode

    2-13. Changing sewing mode ① Select the sewing mode. Press MODE key from the LBH data input screen, and SEWING MODE SELECTION button (A) is displayed. LBH Press this button and changeover of independent sewing and continuous stitching can be performed. Independent sewing button : Continuous stitching button : ②...

  • Page 103: Lcd Display Section At The Time Of Continuous Stitching

    2-14. LCD display section at the time of continuous stitching (1) LBH continuous stitching data input screen Button and display Description LBH CONTINUOUS STITCHING LBH continuous stitching data new register screen is displayed. DATA NEW REGISTER button LBH CONTINUOUS STITCHING LBH continuous stitching data copy screen is displayed.
  • Page 104 Button and display Description LBH CONTINUOUS STITCHING LBH continuous stitching data No. being selected at present is displayed in DATA NO. SELECTION button the button. When it is pressed, the LBH continuous stitching data No. selec- tion screen is displayed. FEED AMOUNT INPUT button Cloth feed amount before sewing is displayed.
  • Page 105 (2) LBH continuous stitching sewing screen Button and display Description SEWING MACHINE START Sewing of the selected LBH pattern is started. switch LBH PATTERN DATA AUTO- LBH pattern data which are used in AC pattern data being selected at pres- MATIC TURN button (to return) ent are automatically turned.
  • Page 106 Button and display Description WITH/WITHOUT DOUBLE With/without double stitching which is set to LBH pattern data during sewing STITCHING display is displayed. NUMBER OF TIMES OF BAST- Number of times of basting which is set to the LBH pattern data during sew- ING display ing is displayed.

  • Page 107: Performing Lbh Continuous Stitching

    2-15. Performing LBH continuous stitching Change the sewing mode to the continuous stitching mode before performing setting. → Refer to "II-2-13. Changing sewing mode" p.98. (1) Selection of LBH continuous stitching data ① Display the LBH continuous stitching data input screen. Only in case of the LBH continuous stitching data input screen (light blue), it is possible to select LBH continuous stitching data No.
  • Page 108 (2) Editing procedure of the LBH continuous stitching data ① Display the LBH continuous stitching data input screen. Only in case of the LBH continuous stitching input screen (light blue), it is possible to change the continuous stitching data. In case of the sewing screen (green), press READY key and display the LBH continuous stitching data input screen (light blue).
  • Page 109 ⑤ Call the LBH pattern No. selection screen. Press button (D) displayed under the sewing order display. LBH pattern No. to sew first screen is displayed. ⑥ Select the LBH pattern No. When UP or DOWN SCROLL button (E) is pressed, the registered LBH pattern No.
  • Page 110 ⑧ Edit the sewing data of LBH pattern inputted to LBH continu- ous stitching data. When the LBH pattern No. is selected, SEWING DATA button (H) displayed the contents of the sewing data inputted to the selected LBH pattern No. is displayed. When the button is pressed, the sewing data input screen is displayed.

  • Page 111: Explanation Of Plural Motions Of Knife

    2-16. Explanation of plural motions of knife This sewing machine can automatically actuate the knife plural times and sew a buttonhole larger than the size of knife by setting the size of knife attached from the operation panel. Set and use this function when sewing various sewing shapes without replacing the knife.
  • Page 112 ③ Input the cloth cutting knife size. Press plus/minus buttons (D) and input the size of knife attached. ④ Determine the cloth cutting knife size. When ENTER button (E) is pressed, the cloth cutting knife size input screen is closed and the input has been completed. Then the screen returns to the memory switch list screen.
  • Page 113 ⑧ Perform sewing. When READY switch is pressed, the sewing screen (green) is displayed. At this time, when Cloth cutting knife size which has been set in step ② , Cloth cut length is set to larger than the sewing machine automatically actuates plural motions of knife and performs sewing. * When you desire to sew the hole shape smaller than the size of knife attached, error 489 appears Sewing data S02 Cloth cutting length...

  • Page 114: Changing Memory Switch Data

    3. CHANGING MEMORY SWITCH DATA 3-1. Changing procedure of memory switch data ① Display the memory switch data list screen. When MODE key is pressed, MEMORY SWITCH button (A) is displayed on the screen. ② Select the memory switch button you desire to change. Press UP/DOWN SCROOL button (B) and select the data item button (C) you desire to change.
  • Page 115 ③ Change the memory switch data. There are data items to change numerals and those to select pictographs in the memory switch data. No. in pink color such is put on the data items to change numerals and the set value can be changed with buttons displayed in the change screen.

  • Page 116: Memory Switch Data List

    3-2. Memory switch data list (1) Level 1 Memory switch data (level 1) are the motion data that the sewing machine has in common and the data that operate on all sewing patterns in common. Item Setting range Edit unit Initial display Presser lifter maximum position 0 to 14.0...
  • Page 117 Item Setting range Edit unit Initial display Sewing start position (Feed direction) 2.5 to 110.0 0.1mm 2.5mm Sewing start position in terms of work clamp is set. Set this item when starting position is desired to be shifted due to overlapped section or the like.
  • Page 118 Item Setting range Edit unit Initial display Pair stacking use setting Without selec- When "with pair stacking selection" is selected, selec- tion tion of effective/ineffective of pair stacking can be per- formed in input screen. : W i t h s e - : W i t h o u t lection selection...
  • Page 119 (2) Level 2 Memory switch data (level 2) can be edited when pressing MODE switch for as long as 6 seconds. Item Setting range Edit unit Initial display Function of prohibition of selection of kind of work Change per- clamp Permitted/Prohibited mitted Prohibition of change of Kind of work clamp...
  • Page 120 Item Setting range Edit unit Initial display Presser lifter motor origin -100 to 10 1 pulse compensation (0.05 mm) Thread trimming on the way in continuous Permitted stitching Permitted/ Prohibited. In case of prohibited, jump feed setting becomes in- valid, and the registered pattern is sewn at the same position.

  • Page 121: Error Code List

    4. ERROR CODE LIST Error How to Place of Description of error code recover recovery Contact of initialization of EEP-ROM of MAIN E001 Turn OFF the CONTROL p.c.b. power. When data is not written in EEP-ROM or data is bro- ken, data is automatically initialized and the initializa- tion is informed.
  • Page 122 Error How to Place of Description of error code recover recovery E018 Type of EEP-ROM is different. P o s s i b l e t o P r e v i o u s When the mounted EEP-ROM is different in type. re-start after screen reset.
  • Page 123 Error How to Place of Description of error code recover recovery E042 Operation error P o s s i b l e t o D a t a i n p u t Operation of sewing data cannot be performed. re-start after screen reset.
  • Page 124 Error How to Place of Description of error code recover recovery E098 Error caused by insufficient number of stitches S t a n d a r d P o s s i b l e t o required for thread trimming screen r e - e n t e r a f t e r pressing reset...
  • Page 125 Error How to Place of Description of error code recover recovery E478 Carriage movable range over error, left P o s s i b l e t o AC data input Feed amount of sewing pattern is over the movable re-start after screen range of carriage (left side).
  • Page 126 Error How to Place of Description of error code recover recovery E494 Work clamp size over of tie stitching at sewing P o s s i b l e t o Sewing data start re-start after input screen When stitching data of tie stitching at sewing start ex- reset.
  • Page 127 Error How to Place of Description of error code recover recovery E733 Reverse rotation of main shaft motor Turn OFF the When sewing machine motor rotates in reverse direc- power. tion. Needle throwing operation failure E798 Tu r n O F F t h e In the case the needle throwing operation does not power.
  • Page 128 Error How to Place of Description of error code recover recovery E904 Abnormality of solenoid power Turn OFF the When solenoid power of servo control p.c.b. fluctuates power. ± 15% or more. Abnormality of temperature of heat sink for servo E905 Turn OFF the control p.c.b.
  • Page 129 Error How to Place of Description of error code recover recovery E918 Abnormality of temperature of heat sink for main Turn OFF the control p.c.b. power. When temperature of heat sink of main control p.c.b. is 85°C or more. Defectiveness of EEP-ROM of main control p.c.b. E943 Turn OFF the When data writing to EEP-ROM is not performed.
  • Page 130 Error How to Place of Description of error code recover recovery E989 Carriage motor drive temperature error Turn OFF the Temperature of the carriage motor drive is abnormal. power. Presser deviation error Turn OFF the E998 In the case the presser foot fails to go up when the power.

  • Page 131: Message List

    5. MESSAGE LIST Message No. Display message Description Display M520 Erase confirmation of Users' pattern Erase is performed. OK ? M521 Erase confirmation of pattern button Erase is performed. OK ? M522 Erase confirmation cycle pattern Erase is performed. OK ? M523 Erase confirmation of backup data Pattern data is not stored in memory.
  • Page 132 Message No. Display message Description Display M535 Overwriting confirmation of adjustment data on personal computer and all machine data Overwriting is performed. OK ? M537 Deletion confirmation of thread tension command Deleting is performed. OK ? M538 Deletion confirmation of intermediate presser increase/ decrease value Deleting is performed.
  • Page 133 Message No. Display message Description Display M554 Customized data initialization notice Customized key-lock data has been initialized. M555 Customized data breakage Customized key-lock data has broken. Initialization is performed. OK? M556 Initialization confirmation of customized data Customized key-lock data is initialized. During formatting M653 Formatting is performed.

  • Page 134: Using Communication Function

    PM-1. Vector format data VD00 ×××. VDT Format of the data which can be used in common among JUKI sewing machines. Format of the sewing data that is unique Parameter data AC00 ×××. EPD to the AC such as the stitch shape, cloth trimming length and overedging width ×××...

  • Page 135: Performing Communication By Using The Media

    6-2. Performing communication by using the media (1) CompactFlash (TM) ■ Inserting the CompactFlash (TM) Turn the label side of the CompactFlash(TM) to this side (place the notch of the edge to the rear. ) and insert the part that has a small hole into the panel.
  • Page 136 ■ Removing the CompactFlash (TM) Hold the panel by hand, open the cover, and press the media ❷ removing lever ❶ . The me- dia is eject. When the lever ❶ is strongly pressed, ❶ the media ❷ may be broken by protrud- ing and falling.
  • Page 137 • Some type of the USB device may not be properly recognized by this sewing machine. • JUKI does not compensate for loss of data stored on the USB device caused by using it with this sewing ma- chine. •...

  • Page 138: Performing Communication By Using Usb

    6-3. Performing communication by using USB Data can be sent/received to/from a personal com- puter or the like, by means of a USB cable. If the contact part becomes dirty, failure of contact will be caused. Do not touch by hand, and control so that dust, oil or other foreign material does not adhere to it.
  • Page 139 ④ Select the communication procedure. There are four communication procedures as described below. (E) Writing data from media to panel (F) Writing data from personal computer (server) to panel (G) Writing data from panel to media (H) Writing data from panel to personal computer (server) Select the button of communication procedure you desire.
  • Page 140 ⑦ Start communication. When COMMUNICATION START button (L) is pressed, the data communication starts. The during communication screen is displayed during communi- cation and the screen returns to the communication screen after the end of communication. Do not open the cover during reading the data. Data may not be read in.

  • Page 141: Performing Formatting Of The Media

    7. PERFORMING FORMATTING OF THE MEDIA To re-format a medium, the IP-420 has to be used. The IP-420 is not able to read any medium which is for- matted on a personal computer. ① Display the media format screen. When switch is held pressed for three seconds, MEDIA A is displayed on the screen.

  • Page 142: Performing Key Lock

    8. PERFORMING KEY LOCK ① Display the key lock screen. Press key for three seconds, and the KEY LOCK button (A) is displayed on the screen. When this button is pressed down, the key lock screen is dis- played. The existing setting state is displayed on the KEY LOCK button. : State that key lock is not set : State that key lock is set ②...

  • Page 143: Displaying Version Information

    9. DISPLAYING VERSION INFORMATION ① Display the version information screen. Press key for three seconds, and the VERSION INFOR- MATION button (A) is displayed on the screen. When this button is pressed down, the version information screen is dis- played. The version information on the sewing machine you use is displayed on the version information scren, and it is possible to check it.

  • Page 144: Using Check Program

    10. USING CHECK PROGRAM 10-1. Displaying the check program screen Press key for three seconds, and CHECK PROGRAM button (A) is displayed on the screen. When this button is pressed down, the check program screen is dis- played. There are nine check program items as described below. Needle thread trimmer origin adjustment "II-10-2.

  • Page 145: Performing Needle Thread Trimmer Origin Adjustment

    10-2. Performing needle thread trimmer origin adjustment ① Display the needle thread trimmer origin adjustment screen. When NEEDLE THREAD TRIMMER ORIGIN ADJUSTMENT button (A) on the check program screen is pressed, the needle thread trimmer origin adjustment screen is displayed. ②...

  • Page 146: Performing Bobbin Thread Trimmer Origin Adjustment

    10-3. Performing bobbin thread trimmer origin adjustment ① Display the bobbin thread trimmer origin adjustment screen. When BOBBIN THREAD TRIMMER ORIGIN ADJUSTMENT button (A) on the check program screen is pressed, the bobbin thread trimmer adjustment screen is displayed. ② Perform the bobbin thread trimmer origin adjustment. When OPERATION button (B) is pressed, the bobbin thread trimmer is actuated to the positions below and the picto-...

  • Page 147: Performing Sensor Check

    10-4 Performing sensor check ① Display the sensor check screen. When SENSOR CHECK button (A) on the check program screen is pressed, the sensor check screen is displayed. ② Perform the sensor check. Input status of the various sensors can be checked on the sensor check screen.
  • Page 148 23 kinds of sensors below are displayed. Remark Pictograph Description of sensor Thread breakage detection Cloth cutting knife sensor * Not used for the AC-172N-1790AN Machine head tilting / hook cover opening sensor Stop switch (Head side switch) Needle rocking sensor...
  • Page 149 Remark Pictograph Description of sensor Cloth sweeping sensor No. of pcs. of stacking sensor Stop switch (AC main body side switch) U p p e r c l a m p l o w e r i n g sensor Lower clamp lifting sensor Material edge sensor −...

  • Page 150: Performing Lcd Check

    10-5. Performing LCD check ① Display the LCD check screen. When LCD CHECK button (A) on the check program screen is pressed, the LCD check screen is displayed. ② Check whether any dot of LCD is omitted. The screen of LCD check screen is displayed by one color only. Check in this state whether any dot is omitted or not.

  • Page 151: Performing Touch Panel Compensation

    10-6. Performing touch panel compensation ① Display the touch panel compensation screen. When TOUCH PANEL COMPENSATION button (A) on the check program screen is pressed, the touch panel compensa- tion screen is displayed. ② Press the lower left position. Press red circle (C) located at the lower left position on the screen.
  • Page 152 ④ Press the upper left position. Press red circle (E) located at the upper left position on the screen. When finishing the compensation, press CANCEL button (B). ⑤ Press the upper right position. Press red circle (F) located at the upper right position on the screen.

  • Page 153: How To Carry Out The External Output Check

    10-7. How to carry out the external output check ① Displaying the external output check screen When you press external output check button (A) on the check program screen, the external output check screen is dis- played. ② Checking the output ON / OFF state of the external outputs can be checked on the external output check screen.
  • Page 154 The 11 kinds of output signals are displayed as described below. Pictograph Sensor description Carriage tilting cylinder Vacuum presser cylinder Preset carry-in cylinder Carriage cloth presser cylinder Device-side sub clamp, lower Device-side sub clamp, upper Cloth dropping air blow cylinder Material sweeping stacker cylinder Pusher cylinder Pusher tilting cylinder...

  • Page 155: How To Adjust The Adjuster

    10-8. How to adjust the adjuster ① Displaying the adjuster adjustment screen When you press adjuster adjustment button (A) on the check program, the adjuster adjustment screen is displayed. ② Adjusting the adjuster Refer to "1.4. Preparation of the device" in the Setup Manual for how to adjust the adjuster.

  • Page 156: How To Adjust The Cloth Trimming Knife Motor Origin

    10-9. How to adjust the cloth trimming knife motor origin ① Displaying the cloth trimming motor origin adjustment screen When you press cloth trimming knife motor adjustment button (A on the check program screen, the cloth trimming knife motor adjustment screen is displayed. ② Adjusting the cloth trimming knife motor origin Change the number of cycles of the cloth trimming knife motor by pressing cycle number button...

  • Page 157: How To Correct The Presser Foot Pressure

    10-10. How to correct the presser foot pressure * Do not use this program since it is the program for manufac- turing. ① Displaying the presser foot pressure correction mode screen When you press presser foot pressure adjustment button (A) on the check program screen, the presser foot adjustment screen is displayed.

  • Page 158: Information Function

    11. INFORMATION FUNCTION There are three functions below in the information function. Oil replacement time, needle replacement time, cleaning time, etc. are designated and the warning no- tice is performed when the designated time has passed. → Refer to and "II-11-1.

  • Page 159: Observing The Maintenance And Inspection Information

    11-1. Observing the maintenance and inspection information ① Display the information screen. When information key of the switch seat section is pressed in the AC data input screen or LBH data input screen, the infor- mation screen is displayed. ② Display the maintenance and inspection information screen. Press maintenance and inspection information screen display button (B) in the information screen.
  • Page 160 ③ Perform clearing remaining time up to the replacement. When button (C) of the item you desire to clear is pressed, the time of replacement clear screen is displayed. When clear button G) is pressed, the remaining time up to the replacement is cleared.

  • Page 161: Inputting The Inspection Time

    11-2. Inputting the inspection time ① Display the information screen (maintenance personnel lev- el). When information key of the switch seat section is pressed in the AC data input screen or LBH data input screen for approx- imately three seconds, information screen (maintenance level) is displayed.
  • Page 162 The same information as that in the normal maintenance and inspection information screen is displayed in the maintenance and inspection information screen. When button (E) of the item you desire to change the inspection time is pressed, the inspection time input screen is displayed. ③...

  • Page 163: Releasing Procedure Of The Warning

    11-3. Releasing procedure of the warning When the designated inspection time is reached, the warning screen is displayed. In case of clearing the inspection time, press CLEAR button A ). The inspection time is cleared and the pop-up is closed. In case of not clearing the inspection time, press CANCEL button B ) and close the pop-up.

  • Page 164: Observing The Production Control Information

    11-4. Observing the production control information It is possible to designate the start, display the number of pieces of production from the start to the exist- ing time, display the number of pieces of production target, etc. in the production control screen. There are two kinds of display ways for the production control screen.
  • Page 165 Information on the following 5 items is displayed in the production control screen. C : Existing target value Number of pieces of the target of products at the present time is automatically displayed. D : Actual results value Number of pieces of the sewn products is automatically dis- played.
  • Page 166 (2) When displaying from the sewing screen ① Display the sewing screen. When READY key (A) of the switch seat section is pressed in the data input screen, the sewing screen is displayed. ② Display the production control screen. When information key (B) of the switch seat section is pressed in the sewing screen, the production control screen is displayed.

  • Page 167: Performing Setting Of The Production Control Information

    11-5. Performing setting of the production control information ① Display the production control screen. Display the production control screen referring to "II-11-4. Ob- serving the production control information" p.160. ② Input the final target value. First, input the number of pieces of the target of production in the process to which sewing is performed from now on.
  • Page 168 ③ Input the pitch time. Next, input the pitch time required for one process. When pitch time button (D) in the previous page is pressed, the pitch time input screen is displayed. M) . Input the value you desire with ten keys or UP/DOWN buttons ( （F）...
  • Page 169 ⑥ Stop the count. Display the production control screen referring to "II-11-4. Ob- serving the production control information" p.160. （H） is When the count is being performed, STOP button （H） is pressed, the count is displayed. When STOP button stopped. After the stop, START button is displayed at the position of STOP button.

  • Page 170: Observing The Working Measurement Information

    11-6. Observing the working measurement information ① Display the information screen. （A） of the switch seat section is When information key pressed in the data input screen, the information screen is dis- played. ② Display the working measurement screen. （B） Press working measurement screen display button in the information screen.
  • Page 171 ③ Input the number of times of thread trimming. Next, input the number of times of thread trimming per process. （G） in When number of times of thread trimming button the previous page is pressed, the number of times of thread trim- ming input screen is displayed.
  • Page 172 ⑤ Stop the count. Display the working measurement screen referring to ① and ② "II-11-6. Observing the working measurement information" p.166. （K） is displayed when the measurement is STOP button （K） is pressed, the being performed. When STOP button measurement is stopped. After the stop, START button is displayed at the position of STOP button.

  • Page 173: Trial Sewing Function

    12. TRIAL SEWING FUNCTION Data created with PM-1 (sewing data creation and edit software) can be sewn on trial by on-line connec- tion of the personal computer with the sewing machine. Connect the personal computer with IP-420 and transmit data to the sewing machine after creation of data with PM-1.
  • Page 174 ③ Select the vector parameter to be changed. Press UP/DOWN scroll button and select the parameter item you desire to change. ④ Change the data. There are data item to change numerals and that to select pic- tographs in the sewing data. NO. in pink color such as put on the data item to change numerals and the set value can be changed with buttons displayed in the change screen.
  • Page 175 ⑥ Register the data to the pattern. When the data which has been sewn on trial is registered to the （C） displayed in the trial panel, press REGISTER button sewing screen, and the register screen is displayed. Input the pattern No. you desire to register with ten keys (D). ⑦...

  • Page 176: Vector Parameter List

    12-2. Vector parameter list Item Setting range Edit unit Initial display Knife groove width, right -2.00 to 2.00 0.05mm Knife groove width, left -2.00 to 2.00 0.05mm With/without knife 0 to 1 Max. speed limitation 400 to 4200 100 sti/min 1st clearance compensation -9 to 9 1 stitch...

  • Page 177: Thread Tension Value Display Color List

    12-3. Thread tension value display color list Needle entry diagram to be displayed is different according to the thread tension value which is set to the needle entry point. The color displayed according to the thread tension is as described below. Thread tension value Display color 0 to 20...

  • Page 178: Communication Screen Of Maintenance Personnel Level

    13. COMMUNICATION SCREEN OF MAINTENANCE PERSONNEL LEVEL For the communication screen, the level which is normally used and the one which is used by the mainte- nance personnel are different in the kinds of data to be handled. 13-1. Data which are possible to be handled In case of the maintenance personnel level, it is possible to use 5 different kinds of data in addition to the normal two kinds.

  • Page 179: Displaying Maintenance Personnel Level

    13-2. Displaying maintenance personnel level ① Display the communication screen of the maintenance per- sonnel level. A ) is pressed as long as three seconds, the im- When key age located at the upper left position is changed to orange color B ) and the communication screen of the maintenance personnel level is displayed.

  • Page 180: Information Screen Of The Maintenance Personnel Level

    14. INFORMATION SCREEN OF THE MAINTENANCE PERSONNEL LEVEL 14-1. Display of error record ① Display the information screen of the maintenance personnel level. A ) of switch seat section is When INFORMATION key pressed for approximately three seconds in the data input screen, the information screen of the maintenance personnel level is displayed.
  • Page 181 Error record of the sewing machine you use is displayed in the er- ror record screen, and you can check the error. C : Order that error has occurred. D : Error code E : Cumulative current-carrying time (hour) at the time of occur- rence of error G ) is pressed, the error record screen When CANCEL button...

  • Page 182: Display Of The Cumulative Working Information

    14-2. Display of the cumulative working information ① Display the information screen of the maintenance personnel level. When INFORMATION key of switch seat section is pressed for approximately three seconds in the data input screen, the in- formation screen of the maintenance personnel level is displayed. In case of the maintenance personnel level, the pictograph locat- ed at the upper left position changes from blue color to orange color, and 5 buttons are displayed.

  • Page 183: Maintenance Of Sewing Machine

    III. MAINTENANCE OF SEWING MACHINE 1. MAINTENANCE 1-1. Adjusting the needle-to-hook relation 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 ascertaining that the motor is at rest. Perform adjusting the needle-to-hook relation when the needle enters the center of the needle hole in the ❶...

  • Page 184: Adjusting The Needle Thread Trimmer

    1-2. Adjusting the needle thread trimmer 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 ascertaining that the motor is at rest. ■ Adjusting the thread grasping force of the needle thread trimmer If the needle thread trimmer fails to provide consis-...

  • Page 185: Adjustment Of The Bobbin Presser Unit

    1-4. Adjustment of the bobbin presser unit 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 ascertaining that the motor is at rest. ❶...

  • Page 186: Replacing The Clamp Cushion

    1-6. Replacing the clamp cushion If the clamp cushion of the carriage has worn out or deformed, replace it with anew one in the following ❶ steps of procedure. Remove worn out cushion from clamp ❶ ,and wipe the clamp surface cleanly. Flush Attach cushion ❷...

  • Page 187: Replacing The Fuse

    1-8. Replacing the fuse DANGER : 1. To avoid electrical shock hazards, turn OFF the power and open the control box cover after about five minutes have passed. 2. Open the control box cover after turning OFF the power without fail. Then, replace with a new fuse with the specified capacity.
  • Page 188 MAIN PCB ❻ ❼ ❻ : For protection of the power supply for the stepping motor and AT solenoid; 　 5A (time-lag fuse) ❼ : For protection of the power supply for the needle thread trimming motor and bobbin thread trimming motor; 　　　4A (time-lag fuse) Power switch ❾...
  • Page 189 Replacing the fuse of blower motor Loosen the power switch setscrews  , remove the power switch cover  . If fuse case  of the blower motor is pushed and turned in the direction of the arrow, fuse case  will open. Time-lag fuse 250V-10A If the fuse has blown, exchange it.

  • Page 190: Disposal Of Batteries

    1-9. Disposal of batteries The operation panel has a built-in battery to back up the memory even when the power to the operation panel is OFF. Be sure to dispose of the battery following the local laws and regulations. [How to remove the battery] 1) Remove panel ❶...
  • Page 191 4) ❼ is the backup battery. ❼ Type number: VL1220/HFR 5) Cut metal plate D that secures battery ❼ with nippers or the like at position A. ❼ ❼ 6) Cut metal plate C that secures battery ❼ with nippers or the like at position B. Then, remove battery ❼...

  • Page 192: Gauge Components

    2. GAUGE COMPONENTS ■ Cloth cutting knife A Knife size (inch) B Knife size (mm) C Mark D Part No. B2702047F00 B2702047K00A 7/16 11.1 B2702047I00 12.7 B2702047L00A 9/16 14.3 B2702047V00 15.9 B2702047M00A 11/16 17.5 B2702047A00 19.1 B2702047N00 22.2 B2702047P00 25.4 B2702047Q00A 1-1/4 31.8...

  • Page 193: Daily Maintenance

    3. DAILY MAINTENANCE 3-1. Removing dust near the bobbin case Hold knob ❷ and open hook cover ❶ . Then remove dust (thread waste and cloth waste) near bobbin case ❸ . If dust collects near the bobbin case, ❷ sewing is deteriorated.

  • Page 194: Troubles And Corrective Measures

    4. TROUBLES AND CORRECTIVE MEASURES Troubles Causes Corrective measures Page 1. Needle thread break- 1. Thread tension at parallel section is too ○ Decrease the thread tension at parallel high. section. 2. Pressure or stroke of thread take-up spring ○ Decrease the tension of thread take-up is too large.
  • Page 195 Troubles Causes Corrective measures Page 8. Thread frays. 1. Number of stitches of tie stitching is too ○ Increase the number of stitches of tie small. stitching at the end of sewing. 2. Width of tie stitching is too wide. ○...

  • Page 196: Initial Value Data For Each Shape Table

    IV. INITIAL VALUE DATA FOR EACH SHAPE TABLE Shape selection Level 3 (30 shapes) Item Unit Shape selection Level 2 (20 shapes) Shape selection Level 1 (12 shapes) Sewing shape Cloth cutting length 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7...

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