JUKI PS-910-13090 Instruction Manual
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JUKI PS-910-13090 Instruction Manual

JUKI PS-910-13090 Instruction Manual

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PS-910-13090
INSTRUCTION MANUAL

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  • Page 1 PS-910-13090 INSTRUCTION MANUAL...

  • Page 2: Table Of Contents

    CONTENTS 1. SPECIFICATIONS ....................1 2. CONFIGURATION ....................3 3. INSTALLATION ....................4 3-1. Setting up the sewing machine ..................4 3-1-1. Unpacking ......................4 3-1-2. Setting up the X-feed mechanism ................ 6 3-1-3. Setting up the table ....................9 3-1-4. Setting up the switches, bobbin thread winder and switch button (asm.) ..11 3-1-5.
  • Page 3 4-21. RFID (How to use the electronic label) ..............60 4-22. Configuration of the operation panel ............... 63 4-24. Parameter List ......................66 4-25. Error Code List ......................73 5. MAINTENANCE OF SAWING MACHINE ............82 5-1. TROUBLES AND CORRECTIVE MEASURES(SEWING CONDITIONS) ....86 5-2.

  • Page 4: Specifications

    A-weighted value of 78.0 dB ; (Includes K pA = 2.5 dB) ; according to ISO 10821- C.6.2 -ISO 11204 GR2 at 2,800 sti/min. Lubricating oil #10 (Equivalent to JUKI NEW DEFRIX OIL No. 1) #32 (Equivalent to JUKI NEW DEFRIX OIL No. 2), Lithium based grease No. 2 Grease information Manufacturer: WERATCHE Type and number: Lithium base 2# grease –...
  • Page 5 S type H type Stitch pitch and the sewing speed Stitch pitch and the sewing speed Number Stitch pitch Sewing speed Remarks Number Stitch pitch Sewing speed Remarks 2.8 mm 2,800 sti/min 3.5 mm 1,800 sti/min 3.0 mm 2,500 sti/min 4.0 mm 1,600 sti/min 4.0 mm...

  • Page 6: Configuration

    2. CONFIGURATION ❶ ❶ ❻ ❻ ❹ ❹ ❸ ❸ ❷ ❷ ❺ ❺ ❼ ❼ ❾ ❾ ❽ ❽ ❶ Machine head ❷ Table ❸ X-axis feed mechanism ❹ Y-axis feed mechanism ❺ Cassette clamp device ❻ Operation panel ❼ Air control ❽ Electrical control box ❾ Power switch (also used as emergency stop switch)

  • Page 7: Installation

    3. INSTALLATION 3-1. Setting up the sewing machine 3-1-1. Unpacking ❶ ❶ 1) Lift clamp ❶ as shown in the pic- ture. If the clamp is not lifted up sufficiently, unpack- ing will not be smoothly carried out. ❷ ❷ 2) Detach top cover ❷...
  • Page 8 ❸ ❸ ❸ ❸ 4) Remove front and rear sheet metal fittings ❸ for fixing the sewing machine. * Tools are packed in the accessory box for the sewing machine. 5) Remove parts, accessories and feed mechanism from the wooden crate. 6) Lift the sewing machine with a forklift to bring it to the specified location.

  • Page 9: Setting Up The X-Feed Mechanism

    7) Turning casters ❹ , check to make sure that the sewing machine is put horizontally on the forks of the forklift. Keep the sewing machine on the forks in such a way that it does not rattle. ❹ ❹ 3-1-2.
  • Page 10 3) Lay the X-feed mechanism aside the main body of the sewing machine. Move the clamp to the center of the X-feed mech- anism. 4) Detach rubber plug ❷ . Remove four nuts ❸ on the opposite side with a wrench key. Take care no to allow the screws to slip off the mounting holes after you have removed the nuts.
  • Page 11 6) Connect the cable guide to the X feed mechanism. Then, tighten the screws. – 8 –...

  • Page 12: Setting Up The Table

    3-1-3. Setting up the table 1) Take out support bars from under the table stand. Remove packing materials. Support bars Long bars, two pieces Intermediate-length bars, two pieces Short bars, four pieces 図 1 2) Set up the right and left tables with short bars (two each for the right and left tables). Set up the front table (middle) with two intermediate-length bars.
  • Page 13 X feed mechanism After you have set up the right and left sub tables, check to make sure that there is a clearance between the tables and the X-feed mechanism. Table Check for a clearance. ❶ ❶ ❶ ❶ ❶ ❶ 3) Set up the front tables (left) and (right).

  • Page 14: Setting Up The Switches, Bobbin Thread Winder And Switch Button (Asm.)

    3-1-4. Setting up the switches, bobbin thread winder and switch button (asm.) * Tools are packed in the accessory box for the sewing machine. 1) Secure the bobbin thread winder to the alumi- num frame of the front table (right) with T-head screw A and nut B.

  • Page 15: Points To Be Checked And Precautions To Be Taken Before Turning The Power

    3-1-5. Points to be checked and precautions to be taken before turning the power ON Intermediate presser Auxiliary presser Packed together with the Needle drop sheet accessories Level 1 Adjusters (at six locations) 1) Place the level on the top surface of the throat plate. Adjust the adjusters up and down for leveling of the sewing machine while observing the level.
  • Page 16 3) Inspect whether the needle entry point is correctly aligned with the center of the needle hole in the throat plate of the sewing machine. 4) Move the XY feed by hand to check whether it can be moved smoothly. 5) Carry out steps 1) to 4) to make sure that there is no problem.

  • Page 17: Installing The Air Hose

    3-1-6. Installing the air hose WARNING : Check to be sure that the air hose is fully inserted into the air cock before supplying the air to the machine so as to prevent the air from being blown directly to the human body. Then, carefully open the air cock.

  • Page 18: Cautions For The Compressed Air Supply (Source Of Supply Air) Facility

    When the supply air contains a considerable amount of carbon Mist separator and dust (Most troubles in the air solenoid valves are caused by carbon.) Be sure to install a mist separator. Standard equipment supplied by JUKI Filter regulator Air solenoid valve Air cylinder Cautions for main piping •...

  • Page 19: Checking The Needle Entry Point And Hook Timing

    3-1-8. Checking the needle entry point and hook timing * When the power to the sewing machine is in the ON state, reset the sewing machine first. 1) First, remove the auxiliary disk presser and the Intermediate presser intermediate presser. Check the alignment of the needle entry point of the sewing machine with the center of the throat plate.
  • Page 20 3) Remove the needle plate and inspect the hook alignment. (360 Check at the full circumference.) * Note: How to turn the machine head 1) Press "Next" ❶ on the Main screen to display the Test screen. ❶ 2) Press "Extend" ❷ to display the Extension screen.

  • Page 21: Checking The Concentricity

    3-1-9. Checking the concentricity (How to handle the case where you have checked the timing between the needle entry and the hook as described in 3-1-10 and have found it is not correct) 1. Adjusting the concentricity between the hook driving shaft saddle and the needle bar If the needle and the hole in the throat plate are not aligned, concentricity between them has to be adjust- ed.
  • Page 22 3) Reset the hook driving shaft saddle to the 0° position. 4) Attach the concentricity adjustment jigs to the throat plate and to the needle with the respective screws. (Put the T-shaped jigs with its marked surface faced upward.) 5) Adjust the T-shaped jig so that the needle bar jig passes through the hole in the T-shaped jig when lower- ing the needle bar.
  • Page 23 180° Relation between the jig and the needle bar jig (pin) Figure observed from above 8) If the needle bar jig fails to enter the hole in the T-shaped jig, adjustment will be necessary. Check the misalignment direction. ① In the case of misalignment in the X direction, it is necessary to carry out adjustment in the X direction. (X direction: Lateral direction toward the sewing machine) 180°...
  • Page 24 2. How to adjust the position of the hook driving shaft saddle 2-1. Preparation before adjustment 1) Remove the front left fixing screw. (3 mm hexago- nal wrench) After you have carried out steps 1) to 3), remove the sheet metal on the right side toward the front of the sewing machine.
  • Page 25 4) Slightly loosen eight screws that secure the hook driving shaft saddle. (8 mm hexagonal wrench, auxiliary pipe) When you loosen the screws, the screw heads should not exceed the top surface of the base to prevent the sheet metal from interfering with the screws when turning the hook driving shaft saddle.
  • Page 26 2-2. Adjustment in the X direction 180° Relation between the jig and the needle bar jig (pin) Figure observed from above The hole is located at the left of the pin. 1) In the case the hole in the T-shaped jig is located at the left of the pin, it is necessary to adjust the hook driving shaft saddle toward the right.
  • Page 27 0° Relation between the jig and the needle bar jig (pin) Figure observed from above 0° 180° 180° 4) Check the relative position between the needle bar jig and the hole in the T-shaped jig at the 0° and 180° positions.
  • Page 28 2-3. Adjustment in the Y direction (right angle of view) 180° Relation between the jig and the needle bar jig (pin) Figure observed from above 1) In the case, the hole in the T-shaped jig located on the front side of the pin, it is necessary to adjust the hook driving shaft saddle backward.
  • Page 29 0° Relation between the jig and the needle bar jig (pin) Figure observed from above 0° 180° 180° 3) Check the relative position between the needle bar jig and the hole in the T-shaped jig at the 0° and 180° positions.
  • Page 30 2-4. Confirmation and assembly after the adjust- ment 0° 1) Once you have completed the adjustment in the X and Y directions, return the hook driving shaft saddle to the 0° position. Re-check the adjust- ment of the T-shaped jig to allow the needle bar jig penetrates the hole in the T-shaped jig.
  • Page 31 3) If you find no problem with centering of the hook driving shaft saddle in the four directions with the jigs, remove the needle bar jig and T-shaped jig lastly. Then, attach the needle and check whether the clearance provided between the needle and the blade point of the hook is within 0.05 to 0.2 mm in the four directions.
  • Page 32 5) Lastly, restore the parts you have removed, such as the sheet metal, throat plate, resin covers and presser foot to the original positions. 【Image drawing of centering of the needle】 Adjustment in the lateral position ① Adjustment of the longitudinal position ② 180°...

  • Page 33: Installing The Bobbin Winder Device

    3-2. Installing the bobbin winder device 1) Insert bobbin winder disk mounting bar ❶ into hole ❷ in the bobbin winder and secure with nut ❸ . ❷ ❷ ❸ ❸ ❶ ❶ 3-3. How to use the bobbin thread winder 1.

  • Page 34: Precautions For Installation Of The Machine

    3-4. Precautions for installation of the machine 1. Depending on the size of template, the sewing ma- chine may extend beyond the sewing machine table in X direction. Take care not to allow the machine to hit against someone standing near the table to cause injury.

  • Page 35: Preparation Of The Sewing Machine

    4. PREPARATION OF THE SEWING MACHINE 4-1. How to attach / remove the cylinder lifting plate 1) While the power to the sewing machine is turned ON, press switch ❶ . ❶ 2) Cylinder lifting plate ❷ comes off upward. Re- move it.

  • Page 36: Lubricating Method And Check Of The Oil Quantity

    4-2. Lubricating method and check of the oil quantity WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Detach cylinder lifting plate ❶ . ❶ ❶ 2) Remove cylinder lifting plate ❶...
  • Page 37 ❼ ❼ ❻ ❻ 3) Remove lubricating rubber ❼ . Pour the supplied oil (or specified oil) into the oil tank. 4) The proper amount of oil in the oil tank is between the Min and Max marker lines indicated on the oil tank.

  • Page 38: Attaching The Needle

    4-3. Attaching the needle WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Loosen screw ❶ to remove the needle. ❷ ❷ ❷ ❷ Be sure to hold the needle so that its groove ❷...

  • Page 39: Threading The Machine Head

    4-4. 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. 1) Put sewing machine thread ❶ on thread stand ❶ ❶ ❷ . ❷...

  • Page 40: Bobbin Replacement Procedure

    4-5. Bobbin replacement procedure WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. (1) Removing the bobbin case 1) Open cover ❶ . Then, the bobbin can be changed.

  • Page 41: Adjusting The Thread Tension

    4-6. Adjusting the Thread Tension (1) Adjusting the needle thread tension Thread tension controller No. 1 ❶ When the tension disk of active tension ❸ is loos- ened, a small amount of tension that is sufficient to control thread trimming has to remain. The re- ❶...
  • Page 42 (2) Adjusting the bobbin thread tension 1) Turn tension adjusting screw ❺ clockwise (in direction A) to increase or counterclockwise (in ❺ direction B) to reduce the bobbin thread tension. Recommended value: Approximately 25 g The bobbin case will come down slowly by its dead weight by holding it as illustrated in the fig- ure.
  • Page 43 5) Press the reset button D on the main screen to return to the origin. 6) As with step 2), get into the Thread clamp ten- sion setting screen and enter the set value in the Thread clamp E. Set the Default thread clamp B to "1". Thread clamp tension at the start of sewing 1: 30 1.
  • Page 44 2) If you want to change the thread tension again during sewing, set the thread tension in the entry field of "Thread tension 1" at a desired midpoint of the stitching line. Thread tension setting method in the case of the picture shown on the left Thread tension 1 at the start of sewing : 30 If you want to change the tension,...

  • Page 45: Adjusting The Thread Take-Up Spring And The Thread Breakage Detector Plate

    4-7. Adjusting the thread take-up spring and the thread breakage detector plate 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 stroke Loosen setscrew ❷ and turn thread tension con- troller ❸...

  • Page 46: Needle-To-Hook Relationshi

    4-9. Needle-to-hook relationshi WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Needle and hook, and angle setting 1) For the S type, the relation between the needle bar height and the hook position should be adjust- ed when the needle bar goes up from its lower S type: 2.9 ±...
  • Page 47 (3) Adjusting the hook timing The timing gauge is supplied for the machine as an accessory. Adjust the timing between the nee- Needle bar/hook timing Lower dead point of the dle bar and the hook according to adjustment position needle bar the standard specification.

  • Page 48: How To Wind A Bobbin

    4-10. How to wind a bobbin 1) Put bobbin ❷ on bobbin winder shaft ❸ . 2) Pass sewing thread ❻ through spool rest rod. 3) Pass the thread as illustrated in the figure. 4) Manually wind thread on bobbin ❷ by several ❶...

  • Page 49: Adjusting The Position Of The Thread Trimmer

    4-11. Adjusting the position of the thread trimmer WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. Adjusting the position of the thread trim- ming cam ❶...
  • Page 50 2) Install the counter knife. There is a hole in the tail of the counter knife mounting plate. Insert a 2.5-mm hexagonal ❷ ❷ wrench into the hole. Then, tighten fixing screw ❷ ❷ of the counter knife while aligning the tail of the counter knife with the hexagonal wrench.
  • Page 51 4) Mark the 5-mm position of the moving knife blade Mark both sides of the moving with a black marker pen. Adjust the counter knife knife with a black marker pen. pressure with counter knife pressure adjustment screw ❹ (two locations). After the completion of the aforementioned adjust- ment, face down the moving knife and re-adjust the moving knife pressure repeatedly until both...

  • Page 52: How To Confirm The Amount Of Oil (Oil Splashes) In The Hook

    4-12. How to confirm the amount of oil (oil splashes) in the hook WARNING : Be extremely careful about the operation of the machine since the amount of oil has to be checked by turning the hook at a high speed. (1) How to confirm the amount of oil (oil splashes) ❶...
  • Page 53 2) Press ❹ to change the number of revolutions to 2500. Press ❺ to run the sewing machine idle for 15 minutes. Then, measure the amount of oil. ❹ ❺ Display B 4-13. Adjusting the amount of oil in the hook WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine.

  • Page 54: Adjusting The Needle Hole In The Throat Plate And The Needle

    4-14. Adjusting the needle hole in the throat plate and the needle WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. In the case the needle does not come down to the center of needle hole in the throat plate, the position of the throat plate can be finely adjusted with screws ❶...

  • Page 55: Adjusting The Disk Presser Pressure

    4-15. Adjusting the disk presser pressure 1) Adjust the disk presser air cylinder pressure regu- ❶ ❶ lation valve ❶ . Pull up nut ❷ . Then, turn the nut clockwise to increase the disk presser pressure or turn it counterclockwise to decrease it. The air pressure has been factory-set to 0.15 MPa at the time of shipment.
  • Page 56 4-16. Adjusting the thread end position at the beginning of sewing It is possible to set the needle thread end posi- tion at the beginning of sewing to top side ❶ or underside ❷ of material. Change over the setting of the wiper function be- ❶...

  • Page 57: Adjusting The Electronic Intermediate Presser Stroke

    4-17. Adjusting the electronic intermediate presser stroke It is necessary to adjust the intermediate presser stroke (A) appropriately since there would be the need for preventing stitch skipping depending on thickness or type of the material. ❶ on the main screen of electrical 1) Press box.

  • Page 58: Adjusting The Air Blow For The Needle Thread And Bobbin Thread

    4-18. Adjusting the air blow for the needle thread and bobbin thread Blow-up pipe ❶ blows air to blow up the thread end trailing from the needle to bring it under disk presser ❷ at the beginning of sewing by controlling the sole- noid valve of the electrical system.

  • Page 59: Making A Template

    4-19. Making a template Machining a template 13090 type template of dimensions of the maximum sewing range ・ Material of template: PVC plate ・ Template thickness: 1.5 mm thick PVC plate ・ Adjust the template size according to the cloths and/or pattern to be sewn. The size must not exceed the maximum dimensions of the relevant specifications.
  • Page 60 (2) Attaching the templates Machine the upper and lower templates based on ❶ ❷ ❸ ❹ the design. 1) Put the upper template on the lower template, as shown in the figure, and adjust so that sewing slits A on the upper and lower templates are aligned. Affix exclusive template tape (36 mm wide) to por- tions ❶...
  • Page 61 4-20. Preparation for sewing 1) Lock the safety cover. Be sure to lock the safety cover before turning the power to the sewing machine. At the home position of the cover, fit the cover over the two pins to lock it securely. * If the safety cover is not locked securely, the safety sensor will fail to detect and fail to allow the sewing machine to start.
  • Page 62 6) Attaching a pattern Moving an empty pattern (with no material), fit positioning hole A A on the pattern positioning plate on the positioning pin. 7) Reading the sewing pattern data 1. In the case an electronic label is attached to the pattern, the electrical system will automatically identify the sewing pattern program that matches the pattern from among those stored on the electronic label.

  • Page 63: Rfid (How To Use The Electronic Label)

    4-21. RFID (How to use the electronic label) 1. Attaching the electronic label Attach electronic label ❶ onto the pattern with double-sided adhesive tape or the like. ❶ ❶ 2. Writing sewing pattern data 1) Place electronic label ❶ on black dot ❷ on the sewing machine table.
  • Page 64 3) Press the "File Management" ❹ on the menu screen. ❹ 4) Select sewing pattern data ❺ you want to write on the electronic label on the memory file screen. After you have made a selection, press "RFID" ❻ to write the sewing pattern data on the electronic label.
  • Page 65 3. Read sewing pattern data 1) Press the'self-lock' ❶ in the default window. ❶ 2) Place the electronic label with the sewing pat- tern data written on the black dot on the table. 3) The sewing pattern data written on the elec- tronic label is read.

  • Page 66: Configuration Of The Operation Panel

    4-22. Configuration of the operation panel LCD portion of the touch panel PAUSE key Used to temporarily stop sewing OPEN key Move the cylinder lifting plate up and down. PRESS key Used to move up/down the cassette holder START key Used to start sewing USB port Reset button...
  • Page 67 Explanation of the operation panel screen ❶ ❷ ❸ ❹ ❺ ❻ ❼ ❽ ❾ Buttons / display Description ❶ Lock key Used to lock the sewing pattern ❷ Threading key Used to thread the machine head Main shaft speed change key Used to change the sewing machine main shaft speed ❸...
  • Page 68 4-23. Maintenance mode The maintenance mode is the mode under which the notice telling that the duration of use of the sewing machine has reached the time requiring maintenance is provided in order to extend the product life of the sewing machine.

  • Page 69: Parameter List

    4-24. Parameter List Stan- Classifi- cation of Parameter name Range dard Meaning of parameter and comment parameters value Automatic Clamp is opened after Yes/No Cassette clamp is lifted every time the machining the completion of auto- continuous sewing cycle is completed matic machining Number of stitches to be 0 to 8...
  • Page 70 Stan- Classifi- cation of Parameter name Range dard Meaning of parameter and comment parameters value Automatic P172 Reset the feeding frame Yes/No The middle presser foot motor is reset machining after completion of at the end of sewing. work. P248 Necessity of moving be- Yes/No fore setting standards P252 Clamp release error at...
  • Page 71 Stan- Classifi- cation of Parameter name Range dard Meaning of parameter and comment parameters value Speed Button speed 2 100 to 20000 4000 8 Correspond to the two direction keys Parameter (mm/min) Operating speed with icon Button speed 3 100 to 20000 8000 8 Correspond to the two direction keys (mm/min)
  • Page 72 Stan- Classifi- cation of Parameter name Range dard Meaning of parameter and comment parameters value Bobbin Bobbin winding state Permit/Prohibit Permis- Bobbin winder winding sion setting Default state Bobbin winder speed 100 to 4500 Bobbin winder speed (sti/ min) Thread winding time 1 to 63000 Setting the time of the spool setting (s)
  • Page 73 Stan- Classifi- cation of Parameter name Range dard Meaning of parameter and comment parameters value Statistical Bottom thread clear Yes/No Whether to set the remaining bobbin setting when power is applied thread to 0 when the power is turned on Work stops after the Yes/No "Yes"...
  • Page 74 Stan- Classifi- cation of Parameter name Range dard Meaning of parameter and comment parameters value Thread P697 QEP2 is opened as Yes/No breakage the detection of bobbin detection thread P237 Thread breakage IO None /OUT1 to None OUT12 Thread Thread trimmer spindle 10 to 500 Spindle speed of thread trimmer trimming...
  • Page 75 Stan- Classifi- cation of Parameter name Range dard Meaning of parameter and comment parameters value Other set- Work end position End position/Ori- Origin End position: End of point sewing tings gin/Right/Sewing where all XY axes coordinates are 0 starting position (zero), restoration point Right: Rightmost point of the process- ing range...

  • Page 76: Error Code List

    4-25. Error Code List Error Title Details Return method code E001 Initialization is not yet • Initialization is not executed when • Press the "Reset" key. executed turning the power ON E002 X axis sensor detec- • X axis positioning sensor fault •...
  • Page 77 Error Title Details Return method code E026 X axis motor overload • The X axis motor fails to rotate. • Check the X axis motor output connector • The X axis motor or the driver is dam- for looseness or disconnection. aged.
  • Page 78 Error Title Details Return method code E043 Intermediate presser • A current that is equal to or higher • Check to make sure that there is nothing shaft motor overcur- than the guaranteed current is de- wrong with the intermediate presser shaft rent (software) tected.
  • Page 79 Error Title Details Return method code E067 Y axis motor overcur- • A current that is equal to or higher • Check to make sure that there is nothing rent protection than the guaranteed current is de- wrong with the Y axis motor. tected.
  • Page 80 Error Title Details Return method code E121 Main shaft motor driv- • An overload on the main shaft motor • Check the main shaft motor output connec- er overload is detected. tor for looseness or disconnection. • Check to make sure that the pulley can be manually turned without a hitch.
  • Page 81 Error Title Details Return method code E213 Thread breakage de- • Thread breakage is detected. • Turn the power OFF. Check to make sure tection error that the thread take-up spring moves smoothly. E214 Sewing counter reach- • The sewing counter has reached the •...
  • Page 82 Error Title Details Return method code E233 Read & write error • Data cannot be read from the medi- • Check the data in the medium. • Check to make sure that the medium is (external medium con- • Data cannot be written on the medi- data-writable.
  • Page 83 Error Title Details Return method code E401 Overcurrent protection • A current that is equal to or higher • Check to make sure that there is nothing detection (driver) than the guaranteed current is de- wrong with the motor. tected. •...
  • Page 84 Error Title Details Return method code E448 Motor overload (driver) • The motor fails to rotate. • Check the motor output connector for • The motor or the driver is damaged. looseness or disconnection. • Check to make sure that the cassette hold- er moves smoothly.

  • Page 85: Maintenance Of Sawing Machine

    Tighten the screws of the face plate. 6. Use the JUKI Grease as the lu- bricating grease. Do not mix it with other lubricating greases. ❸ ❸ – 82 –...
  • Page 86 Region Explanation Operating time 1. Detach cylinder lifting plate ❶ . If the oil level in the oil Lubricate the hook oil tank. tank drops below the low- er scale marker, replen- ish the oil tank with the accessory (or specified ❶...
  • Page 87 Region Explanation Operating time 3. Remove lubricating rubber ❻ . Pour the supplied oil (or speci- fied oil) into the oil tank. Lubricate up to the upper marker line. 4. Attach rubber plug ❻ . 1. Press ❷ on the Start screen A Adding the lubricating oil to the gear Replenish the gear box with No.
  • Page 88 Region Explanation Operating time 2. Loosen six fastening screws ❼ and remove gear box cover ❺ ❺ ❺ and cap ❻ . ❼ ❼ ❻ ❻ ❺ ❺ 3. Pour the #32 oil into the gear box slowly. 4. The oil surface in the gear box can be checked through the oil H line sight window on the side face...

  • Page 89: Troubles And Corrective Measures(Sewing Conditions)

    5-1. TROUBLES AND CORRECTIVE MEASURES(SEWING CONDITIONS) Troubles Cause Measures ① Stitches are slipped at the start. ◦ Adjust the clearance provided between the nee- 1. The needle thread slips off at the start dle and the hook. ◦ Set soft-start sewing at the beginning of sewing. of bar-tacking.
  • Page 90 Troubles Cause Measures ① Stitch skipping at the 1st stitch. ◦ Increase the length of needle thread remaining 8. Thread end of the 1st stitch comes out at the needle after thread trimming. ② Needle used and thread used are thick ◦...

  • Page 91: Disposal Of Batteries

    5-2. Disposal of batteries The operation panel has a built-in battery in order to operate the clock even when the pow- er is turned OFF. Be sure to dispose of the battery following the local laws and regulations. ■ How to remove the battery 1) Release lock ❶...

  • Page 92: Replacing The Fuse

    2. Open the control box cover after turning OFF the power without fail. Then, replace with a new fuse with the specified capacity. Two fuses are used. ❻ ❻ ❶ Fuse 250 V 20A (time lag fuse) JUKI part number: 40292522 ❶ ❶ – 89 –...

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