JUKI LK-1900S-SS Instruction Manual
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JUKI LK-1900S-SS Instruction Manual

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LK-1900S Series
INSTRUCTION MANUAL
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Summary of Contents for JUKI LK-1900S-SS

  • Page 1 LK-1900S Series INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    CONTENTS I. EXPLANATION OF THE LK-1900S, 6-9. How to use the F key ........44 6-10. Production support function ......45 COMPUTER-CONTROLLED HIGH- 7. MAINTENANCE..........51 SPEED BARTACKING MACHINE ..1 7-1. Adjusting the height of the needle bar ..51 1. SPECIFICATIONS ..........1 7-2.

  • Page 3: Explanation Of The Lk-1900S, Computer-Controlled High- Speed Bartacking Machine

    I. EXPLANATION OF THE LK-1900S, COMPUTER- CONTROLLED HIGH-SPEED BARTACKING MACHINE 1. SPECIFICATIONS 1 Sewing area X (lateral) direction 40 mm Y (longitudinal) direction 30 mm Regular sewing speed : 2,700 sti/min* (When sewing pitches are less than 5.5 mm in X-direction and 4.0 mm in Y -direction.) 2 Sewing speed Max.

  • Page 4: Configuration

    2. CONFIGURATION 2-1. Names of main unit ❸ ❶ ❹ ❷ ❺ ❼ ❻ ❽ ❶ Machine head ❷ Work clamp feet ❸ Thread stand ❹ Operation panel ❺ Power switch ❻ Control box ❼ Pedal ❽ Power switch (EU type) －...

  • Page 5: Names And Explanation Of Switches On The Operation Panel

    2-2. Names and explanation of switches on the operation panel ❽ ❻ ❼ ❶ ❾ ❷ ❸ ❹ ❺ NAME FUNCTION NAME FUNCTION ❽ EDIT key ❶ LCD display Various data such as pattern This key is used to display the No., shape, etc.

  • Page 6: Installation

    3. INSTALLATION 3-1. Installing the electrical box Install control box ❶ to the location illustrated in the figure using four bolts ❷ , four plain washers ❸ and ❷ four spring washers ❹ and four hexagonal nuts ❺ supplied with the unit. Bolt ❷...

  • Page 7: Attaching The Connecting Rod

    3-3. Attaching the connecting rod 1) Fix connecting rod ❶ to installing hole B of ped- al lever ❷ with nut ❸ . 2) The pedal depressing stroke is decreased by fitting connecting rod ❶ in mounting hole A. ❷ ❸...

  • Page 8: Installing And Connecting The Power Switch

    3-5. Installing and connecting the power switch (1) Installing the power switch Fix power switch ❶ under the machine table with ❸ wood screws ❷ . Fix the cable with staples ❸ supplied with the ma- chine as accessories in accordance with the forms of use.

  • Page 9: How To Carry The Sewing Machine

    3-6. How to carry the sewing machine To carry the sewing machine, it is necessary to hold A section and support the side faces of the sewing ma- chine by hand as illustrated in the figure. 1. Carefully prevent slippage of your hand that holds the cover. 2.

  • Page 10: Installing The Drain Receiver And The Head Support Rubber

    3-8. Installing the drain receiver and the head support rubber 1) Fix drain receiver ❷ in the installing hole of table ❶ with two setscrews ❸ . 2) Screw poly-oiler ❹ in waste oil reservoir ❷ . 3) Insert sewing-machine waste oil pipe ❺ into po- ly-oiler ❹...

  • Page 11: Tilting The Sewing Machine Head

    3-10. Tilting the sewing machine head WARNING : Tilt/raise the sewing machine head with both hands taking care not to allow your fingers to be caught in the head. Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine.

  • Page 12: Connecting The Cords

    3-12. Connecting the cords DANGER : To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine, carry out the work after turning OFF the power switch and a lapse of 5 minutes or more. To prevent accidents caused by unaccustomed work or electric shock, request the electric expert or engineer of our dealers when adjusting the electrical components.

  • Page 13: Handling The Cords

    3-13. Handling the cords DANGER : To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine, carry out the work after turning OFF the power switch and a lapse of 5 minutes or more. To prevent accidents caused by unaccustomed work or electric shock, request the electric expert or engineer of our dealers when adjusting the electrical components.

  • Page 14: Installing The Eye Protection Cover

    3-14. 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 use eye protection cover ❶ after installing it on installing section ❸ with screws ❷ . ❸...

  • Page 15: Installing The Thread Stand

    3-15. Installing the thread stand 1) Assemble the thread stand unit, and insert it in the hole in the machine table. 2) Tighten locknut ❶ to fix the thread stand. ❷ 3) For ceiling wiring, pass the power cord through spool rest rod ❷...

  • Page 16: Operation Of The Sewing Machine

    4. OPERATION OF THE SEWING MACHINE 4-1. Lubrication WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Check that the place between lower line B and upper line A is filled with oil.

  • Page 17: Threading The Machine Head

    4-3. Threading the machine head WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Type H ❶ Thin filament thread or the like Pull out the thread by approximately 40 mm from the needle after threading through the needle. If it is difficult to thread the machine head, refer to "I.5-8.

  • Page 18: Installing The Bobbin

    4-5. Installing the bobbin WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Set the bobbin ❶ into bobbin case ❷ in the di- 25mm rection shown in the figure.

  • Page 19: Adjusting The Thread Take-Up Spring

    4-7. Adjusting the thread take-up spring The standard stroke of thread take-up spring ❶ is 8 to 10 mm, and the pressure at the start is 0.1 to 0.3N. 1) Adjusting the stroke ❶ Loosen setscrew ❷ , and turn thread tension asm.

  • Page 20: Setting The Pattern Number

    5-2. Setting the pattern number ❼ Turn ON the power switch. The pattern number is displayed at the upper left por- tion of the screen. The pattern shape, X/Y scale rate and sewing speed of the pattern are also displayed. ❼...
  • Page 21 (2) Inputting the Y size ❼ ❻ ❻ to display the Press ITEM SELECT key C002 Y size. ❼ to display the Press DATA CHANGE key value you desire. One of the input methods for the X/Y sizes can be selected;...
  • Page 22 ❻ ❼ ❾ On the comment input screen, as many as 14 char- acters can be input. The characters that can be input are alphabets, numbers and symbols. ❻ to specify the Press ITEM SELECT key ❼ input position. Press DATA CHANGE key to select the characters to be entered.

  • Page 23: Checking The Contour Of A Sewing Pattern

    5-4. Checking the contour of a sewing pattern WARNING : 1. Make sure without fail of the contour of the sewing pattern after selection of the sewing pattern. If the sewing pattern extends outside the work clamp feet, the needle will interfere with the work clamp feet during sewing, causing dangerous troubles including needle breakage.

  • Page 24: Sewing

    5-5. Sewing 1) Set a workpiece on the work clamp foot section. 2) When you depress the pedal to the first step, the work clamp comes down. When you release the pedal, the work clamp goes up. 3) Depress the pedal switch to the second step after ➡...

  • Page 25: Winding A Bobbin

    5-7. Winding a bobbin (1) To wind a bobbin while the sewing machine is performing sewing Thread the bobbin winder and wind the bobbin thread onto the bobbin as illustrated in the figure. (2) For winding a bobbin only ❻ ❷...

  • Page 26: How To Open The Tension Disk

    5-8. How to open the tension disk ❾ ❻ ❷ to turn off SET 1) Press READY key READY LED  . 2) Press work PRESSER and WINDER key ❺ and select lowering of the work clamp. ❻ . Then, the disk of tension 3) Press ▲...

  • Page 27: Led Hand Light

    5-9. 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.

  • Page 28: Operation Of The Sewing Machine (Advanced)

    6. OPERATION OF THE SEWING MACHINE (ADVANCED) 6-1. Performing sewing using the pattern keys Patterns (No.1 to 200) which have been already registered can be registered to P1 to P50. It is also possible to register the existing direct pattern with its scale, maximum sewing speed limitation and sewing position changed.
  • Page 29 ❼ ❽ ❽ . Edit the item data with 3) Press EDIT key ❼ . DATA CHANGE key The item data that can be edited are as de- "(2) Listing of item data" p.29 scribed in ". 4) Set the X scale rate to "50" %, Y scale rate to "80"...
  • Page 30 ❷ , key to finalize the 7) Press READY key setting. ❹ . 8) Press MODE key Pattern register mode is finalized. ❹ . 9) Press MODE key Mode setting is finalized and the mode returns to the normal mode. ❷...
  • Page 31 (2) Listing of item data Picto- Item name Input range Remarks: graph Type of pattern S001 Standard pattern / * This data is for display only. To User pattern edit the data, delete the direct pattern and create a new direct pattern.
  • Page 32 (3) Sewing operation Operation example : After performing sewing with the contents of the registered P2, perform sewing with the contents of P3. 1) Turn ON the power switch. 2) Press direct pattern 3) Press READY key to light up SET READY LED .

  • Page 33: Sewing Using The Combination Function (Cycle Sewing)

    6-2. Sewing using the combination function (cycle sewing) This sewing machine can perform sewing of plural sewing pattern data in one cycle in the order of the data. As many as 99 patterns can be input. Use this function for sewing two or more different patterns on the sewing product.
  • Page 34 3) Selecting the edit point ❻ , the edit point is changed and the current point is displayed When you press ITEM SELECT key in reverse video. When you move the edit point forward until the last point is reached, additional indica- tion pictograph is displayed.
  • Page 35 (3) Sewing operation ❻ 1) Turn the power ON. 2) Select the cycle pattern using ITEM SELECT key ❻ . Select the cycle pattern number with ❼ . DATA CHANGE key ❷ to light up SET 3) Press READY key READY LED  .

  • Page 36: Sewing Through The Use Of The Counter

    6-3. Sewing through the use of the counter For this sewing machine, the progress rate and the operation rate of the sewing machine can be displayed by setting the sewing counter and the production parameter. Refer to "I.6-10. Production support function" p.45 for how to use the progress rate and the operation rate.
  • Page 37 (2) Completion of counting The count completion screen has been factory-set to "disabled" at the time of shipment. In order to use the count-completion screen for the sewing counter, set the memory switch U077 to "Enable display". (Refer to "I.8-2. List of the memory switch functions" p.60.) [Bobbin thread counter] (1) How to set the bobbin thread counter...
  • Page 38 (2) Type of the bobbin thread counter ① Bobbin thread count-up counter The current value displayed on the bobbin thread counter is increased by one every time the sewing machine sews 10 stitches. When the current value becomes equal to the set value, the count complete screen is displayed.

  • Page 39: How To Use The Temporary Stop

    6-4. How to use the temporary stop Once the RESET key function is set to the "pause" by means of the memory switch U031, the RESET key will function as the pause key to allow the sewing machine to be stopped during sewing. (Refer to "I.8-2.

  • Page 40: Copying Or Deleting Various Kinds Of Pattern Data

    6-5. Copying or deleting various kinds of pattern data Data of pattern No. which has been already registered can be copied to pattern No. which has not been used. Overwriting copy of the pattern is prohibited. When you desire to overwrite, perform it after erasing the pattern once.
  • Page 41 6) Erasing the pattern ❻ to select the pattern number you want In the case of erasing the pattern, select ITEM SELECT key ❼ to select Trash ❷ . to delete. Press DATA CHANGE key . Then, press READY key ❸...

  • Page 42: Communication

    • When the storage space of a USB device is partitioned, only one partition is accessible. • 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 43 Data on needle entry points created with VD00 ××× .VDT Vector form data the PM-1. The data form is commonly used (××× : 001 to 999) among JUKI sewing machine.(User pattern) ❼ ❻ 3) Selecting the communication direction ❻ to display...

  • Page 44: Cautions In Operation

    6-7. Cautions in operation (1) When the error indicator lamp lights up, be sure to check the cause of trouble and take a proper correc- tive measure. (2) Do not draw, by hand, the material being sewn during sewing. Doing so will cause the needle shift from the correct position.

  • Page 45: Setting Enable/Disable Of Standard Pattern Invoking

    6-8. Setting enable/disable of standard pattern invoking Invoking of a wrong pattern is prevented by disabling invoking of unnecessary patterns. In addition, necessary patterns can be invoked and used. Example of setting: Invoking of pattern No. 2 is dis- abled. 1) Putting the sewing machine in the input mode Under the input mode where the SET READY LED  goes out, setting of data is enabled.

  • Page 46: How To Use The F Key

    6-9. How to use the F key  after registering the parameter you frequently use to it. Use F key  under the input mode. The registered parameter can be selected only by pressing F key (1) Method of register ❾...

  • Page 47: Production Support Function

    6-10. Production support function This function displays the number of pieces produced for the day, calculates the progress rate of sewing work based on that number of pieces, and displays the result. In addition, this function calculates the operation rate of the sewing machine based the operating hours of the sewing machine, and displays the result.
  • Page 48 (1) Date and time setting ❽ ❻ ❼ 1) Calling the date and time setting screen Select the date and time setting on the production parameter setting screen. In this ❽ . state, press EDIT key The date and time setting screen is displayed 2) Setting the date and time ❻...
  • Page 49 (2) Setting the work hours Set the work hours that is required to calculate the progress rate and the operation rate for the production support function. ❽ ❻ ❼ 1) Calling the work hours setting screen In the state where the work hours setting is selected on the production parameter setting ❽...
  • Page 50 (3) Setting the number of times of thread trimming for sewing one piece of product Set the number of times of thread trimming to be carried out until the production counter completes counting. ❽ ❻ ❼ 1) Calling the count complete unit setting screen Calling the count complete unit setting screen ❽...
  • Page 51 (4) Setting the work break time Set the work break time that is excluded from the calculation of the progress rate for the production support function. As many as three work break times can be set. ❽ ❻ ❼ 1) Calling the work break time 1 setting screen In the state where the work break time 1 is selected on the production parameter setting ❽...
  • Page 52 (5) Calling the screen for setting the display type of the target number of pieces Set the display type of the target number of pieces to be used for the production support function. ❽ ❻ ❼ 1) Calling the screen for setting the display type of the target number of pieces Select the display type of the target number of pieces on the production parameter setting...

  • Page 53: Maintenance

    7. MAINTENANCE 7-1. Adjusting the height of the needle bar WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. ❷ ❹ : Upper ❸ engraved line A : Engraved line ❶...

  • Page 54: Adjusting The Needle-To-Shuttle Relation

    7-2. Adjusting the needle-to-shuttle relation WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Turn the handwheel by hand. When needle bar Relation between needle and engraved lines ❶...

  • Page 55: Adjusting The Lift Of The Work Clamp Foot

    7-3. Adjusting the lift of the work clamp foot WARNING : As the work is performed while the power is ON, never touch the switches other than the necessary one so as to prevent accidents caused by the malfunction of switches. 1) With the machine in stop mode, remove six set- ❹...

  • Page 56: Adjustment Of The Wiper

    7-5. Adjustment of the wiper WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. ❶ 1) Loosen screw to adjust so that a clearance of 1.5 mm or more is provided between the wiper and the needle.

  • Page 57: Amount Of Oil Supplied To The Hook

    7-7. Amount of oil supplied to the hook 1) Loosen setscrew ❶ and remove setscrew ❶ . 2) When screwing in adjustment screw ❷ , the amount of oil of oil pipe, left ❹ can be reduced. ❹ 3) After the adjustment, screw in setscrew ❶ and fix it.

  • Page 58: Replenishing The Designated Places With Grease

    7-9. Replenishing the designated places with grease When the sewing machine has been used for a cer- tain number of times of sewing, error code No. E220 is displayed on the operation panel at the time of turning ON the power. This display informs the oper- ator of the time of replenishing the designated places with grease.
  • Page 59 ❶ ❷ located at periphery of crank rod ❷ . ❹ 3) Fill coupling ❹ with grease through JUKI Grease ❸ A tube ❺ . 4) Sink screw ❻ supplied with the unit into the cou- pling to add the grease.

  • Page 60: Disposal Of Batteries

    7-10. Disposal of batteries The operation panel has a built-in battery in order to operate the clock even when the power is turned OFF. Be sure to dispose of the battery following the local laws and regulations. [How to remove the battery] 1) Remove operation panel ❶...

  • Page 61: How To Use The Memory Switch

    8. HOW TO USE THE MEMORY SWITCH 8-1. Method of changing memory switch data 1) Set the mode to input mode. Under the input mode where SET READY LED  goes out, change to the memory switch data is enabled. If the current mode is the sewing mode, press ❷...

  • Page 62: List Of The Memory Switch Functions

    8-2. List of the memory switch functions Various operations of the sewing machine can be set by programming the memory switch. The initial setting values at the time of shipment differ with models. Function Setting range State when delivered Remarks U001 Max.
  • Page 63 Function Setting range State when delivered Remarks U036 Feed timing is selected. − 8 to 16 Setting on exces- sive “–” side may When stitches are not well-tightened, set the value in cause needle break- “–” direction. a g e . B e c a r e f u l when sewing heavy- weight material.
  • Page 64 Function Setting range State when delivered Remarks U055 Effective/ineffective of tie stitching for button sewing can be selected. : Tie stitching effective : Tie stitching ineffective The dimension input increment can be selected. U064 : In percentage (%) : In dimension U065 Y origin shift method can be selected.

  • Page 65: Others

    9. OTHERS 9-1. Table of the standard pattern specifications Lengthwise Crosswise Number of stitches Pattern S, H ＊ Large size bartacking ＊ Large size bartacking ＊ Large size bartacking Large size bartacking ＊ Large size bartacking ＊ Large size bartacking ＊...

  • Page 66: Table Of The Standard Patterns

    9-2. Table of the standard patterns Sewing size Sewing size (Note 2) (Note 2) (mm) (mm) Stitch diagram Stitch diagram No. of work No. of work Length- Cross- Length- Cross- clamp foot clamp foot wise wise wise wise ※ ※ (Note3) ※...
  • Page 67 Sewing Sewing (Note 2) (Note 2) size (mm) size (mm) Stitch diagram Stitch diagram No. of work No. of work clamp foot clamp foot Length- Cross- Length- Cross- wise wise wise wise ø12 ø8 Pattern Nos. 41 to 46 are for the optional work clamp foot No.

  • Page 68: Table Of The Work Clamp Foot

    9-3. Table of the work clamp foot 13518659 (asm.) 13548557 (asm.) 13542964 (asm.) Work clamp foot 14116107 14116404 14116800 14116305 14116206 (With knurl) (With knurl) (With knurl) (Without knurl) (Without knurl) Feed plate 21.2 11.4 Sewingspecification H / W ※ Finger guard 13533104 Optional Optional...
  • Page 69 13548151(asm.) 13542451 (asm.) 13571955 (asm.) 13561360 (asm.) Work clamp foot 13548003 13554803 14116602 14116503 14116909 14116701 (With knurl) (With knurl) (Without knurl) (Without knurl) (Without knurl) (With knurl) Feed plate 27.4 37.3 Sewing specification ※ Finger 13548300 13533104 13573407 guard Standard accessory for Optional...

  • Page 70: Installing The Foot Pedal Switch (Optional)

    9-4. Installing the foot pedal switch (optional) DANGER : To prevent personal injuries caused by electric shock hazards or abrupt start of the sewing machine, carry out the work after turning OFF the power switch and a lapse of 5 minutes or more. To prevent accidents caused by unaccustomed work or electric shock, request the electric expert or engineer of our dealers when adjusting the electrical components.

  • Page 71: Error List

    9-5. Error list Error code Indication Description of error Corrective measure Remarks E007 Machine lock error Turn OFF the power switch and remove the cause of The main shaft of the sewing machine troubles. does not rotate due to some troubles. E010 Pattern No.
  • Page 72 Machine head identification error E063 Turn the power OFF and The type of machine head and the type of contact JUKI or your distribu- control box do not match. tor. E204 Connection alert for the USB thumb Re-operation is enabled after drive which is used for sewing resetting.
  • Page 73 Error code Indication Description of error Corrective measure Remarks E405 Prohibition of deletion of direct pat- Re-operation is enabled after terns resetting. The direct pattern is set in the cycle sew- ing data. Password reset error E408 Re-operation is enabled after Wrong password has been entered.
  • Page 74 Error code Indication Description of error Corrective measure Remarks E908 Y origin retrieval error Turn OFF the power switch Y origin sensor does not change. a n d c h e c k w h e t h e r C N43 and/or CN54 of the MAIN board are disconnected or loose.

  • Page 75: Message List

    9-6. Message list Message No. Display Display message Description M520 Erase is performed. OK ? Erase confirmation of Users' pattern M521 Erase is performed. OK ? When deletion of the direct pattern is checked M522 Erase is performed. OK ? Erase confirmation cycle pattern M523 Pattern data is not stored in memory.
  • Page 76 Message No. Display Display message Description M547 Overwriting cannot be performed since data ex- Overwrite is disabled (panel) ists. M548 Overwriting cannot be performed since data ex- Overwrite is disabled (media) ists. M581 Registration is canceled. Registration of a direct pattern M582 Copy is cancelled.

  • Page 77: Troubles And Corrective Measures (Sewing Conditions)

    9-7. Troubles and corrective measures (sewing conditions) Trouble Cause Corrective measures Page ① Stitches are slipped at the ◦ Adjust the clearance between the nee- 1. The needle thread slips off at the start of start. dle and the shuttle to 0.05 to 0.1 mm. ◦...
  • Page 78 Trouble Cause Corrective measures Page ① The motions of the needle ◦ Correct the positions of the needle and 5. Stitch skipping often occurs. and shuttle are not properly shuttle. synchronized. ② The clearance between the ◦ Correct the positions of the needle and needle and shuttle is too shuttle.

  • Page 79: Table Of The Optional Parts

    9-8. Table of the optional parts Name of Parts Type Part No. Remarks Without knurl / processed 14120109 Feed plate blank Sewing area lengthwise 20 X crosswise 40 With knurl / processed 14120307 Sewing area lengthwise 20 X crosswise 40 Without knurl / stainless steel 14120505 t = 0.5...
  • Page 80 Name of Parts Type Part No. Remarks Finger guard (2) A=66.5 B=43 13573407 lengthwise bartacking Finger guard (3) A=21.5 B=35.5 14120000 For specially ordered work clamp SM8040302TP With knurl / processed (right) 40021869 Work clamp foot blank With knurl / processed (left) 40021870 PK57 changing cable asm.

  • Page 81: Explanation Of The Lk-1903S, Computer-Controlled High-Speed Lockstitch Button Sewing Machine

    II. EXPLANATION OF THE LK-1903S, COMPUTER-CONTROLLED HIGH-SPEED LOCKSTITCH BUTTON SEWING MACHINE 1. SPECIFICATIONS Different specifications from those of the LK-1900S only are described. Max. sewing speed 2,700 sti/min Needle DPx17 #14 Lift of the work clamp foot Max. 13mm Number of standard patterns 50 patterns 2.

  • Page 82: Various Sewing Modes

    2-3. Various sewing modes (1) List of sewing patterns Number of threads and standard sewing size of X and Y are as shown in the following list. < Sewing program list > Pattern Stitch Number Standard Standard Pattern Stitch Number Standard Standard shape...

  • Page 83: Adjustment Of The Sewing Machine

    (2) Selection of the sewing pattern and the sewing width ◦ Selection of the sewing pattern is the same as that of the LK-1900S. ◦ When the distance between holes of the button used does not fit the standard sewing width of the sew- ing pattern No., adjust the sewing width by enlarging/reducing the sewing width.

  • Page 84: Adjusting The Feed Plate

    4) Place a button in button clamp jaw levers ❶ . 5) Depress the pedal to the first step and detach your foot from the pedal when the button clamp unit comes down. ❷ 6) Turn the hand pulley and check that the center of ❶...

  • Page 85: Adjusting The Button Clamp Jaw Lever

    3-3. Adjusting the button clamp jaw lever WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Bring the machine to its stop-motion state. Then lift button clamp ❶ . Loosen screw ❷ in the button ❹...

  • Page 86: Adjustment Of The Pressure Of The Work Clamp Unit

    3-5. Adjustment of the pressure of the work clamp unit WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. ❷ ❶ The pressure of the work clamp unit should be minimized as long as the material does not warp during sewing.

  • Page 87: Others

    4. OTHERS 4-1. Installing the save button bar (accessory part) WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Install save button bar ❸ on button clamp base ❷...

  • Page 88: Attaching The Shank Button (Optional)

    4-3. Attaching the shank button (optional) (1) Specifications Model Optional Needle TQx3 #14 Shape of button Outside diameter Max. ø20 Diameter of hole Min. ø1.5 Position of hole 1.5 mm or more Shape of shank sec- ℓ(mm) tion Minimum Maximum ℓ...
  • Page 89 (2) Adjusting the height of the needle bar WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. ❶ ❸ 4.3mm ❷ 1) Loosen needle bar connection screw ❶ and move the needle bar ❷ up or down so that second en- graved marker line A as counted from the bottom is aligned with the bottom end of needlebar bushing ❸...
  • Page 90 (4) Adjusting the button clamp support WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Loosen setscrew ❶ , and place the button to be used in ❸...
  • Page 91 (7) Adjusting the button support rubber WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. To adjust the position of button support rubber asm. ❶ , loosen setscrews ❷ and ❸ , and adjust so that ❶...

  • Page 92: Drawing Of The Table

    III. DRAWING OF THE TABLE 　　Longitudinal installation type table (Part No. 40143093) 1200 1130 1046 ±1 ±3 ±1 ❶ 175.6 ±1 ❹ ❷ 30.5 ❼ ❾ 17.5 ❺ ❸ ❻ 158.8 ±1 ❽ ±0.5 ±0.5 133.5 ±1 ±1 Z-Z(1:2) Ø36 Ø16 ❶...
  • Page 93 　　Lateral installation type table 1200 1130 916.5 ±1 ❶ ❷ 584.9 263.5 ±0.5 ❾ 10.5 ❸ ❺ ❹ ❻ 18.5 ±0.5 ❽ ❼ 48.7 ±1 259.8 ±1 136.8 ( 583.2 206.8 113.5 ±1 Z-Z （1 ： 2） ±1 ∅ ±1 637.5 ±1 ∅...

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Lk-1900s seriesLk-1900s-hs

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