Janome Memory Craft 9000 Service Manual
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SERVICING MANUAL
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Summary of Contents for Janome Memory Craft 9000

  • Page 1 SERVICING MANUAL...
  • Page 2: Table Of Contents

    TABLE OF CONTENTS To change the face plate and top cover .................. 3 To change the belt cover unit ....................4 To change the bed cover unit ....................5 To change the base unit......................6 To adjust the needle position ....................7 To adjust the needle bar height ....................
  • Page 3: To Change The Face Plate And Top Cover

    TO CHANGE THE FACE PLATE UNIT AND TOP COVER UNIT FACE PLATE UNIT TO REMOVE Remove the two screws, and remove the face plate. TO ATTACH Tighten the two screws slightly, and attach the face plate. Close the face plate, and check the unevenness between The face plate and arm. Tighten the screws securely.
  • Page 4: To Change The Belt Cover Unit

    TO CHANGE THE BELT COVER UNIT TO REMOVE Loosen the screw A and remove screws B, C and the washer. Loosen the screw D completely, and remove the belt cover unit. TO ATTACH Insert the belt cover in the front panel. Replace screws A, B.
  • Page 5: To Change The Bed Cover Unit

    TO CHANGE THE BED COVER UNIT TO REMOVE Remove the base cover (see page 6). Remove the two screws A, and remove the base lid. Remove the two screws B, and remove the bed cover unit. Then pull out the connectors from the connector supporter and disconnect them.
  • Page 6: To Change The Base Unit

    TO CHANGE THE BASE UNIT TO REMOVE Remove the base cover. Pull the connectors for the X-axis and Y-axis motors from “A” board. Remove the 4 screws and the base unit. TO ATTACH Follow the above procedure in reverse. Check the position of feed dog “UP and DOWN”. NOTE: 1) Set The base unit that the right side of knee lifter link (4) claw should match the knee lifter plate on the base unit (see page 30).
  • Page 7: To Adjust The Needle Position

    TO ADJUST THE NEEDLE POSITION When straight stitch #2 is selected, the needle should be at the center hole of the needle plate. When the zigzag stitch is selected with the zigzag width set to the maximum (7.0), the clearance between the side of the needle and the outer edges of the left and right needle plate holes should be 0.2 mm or more.
  • Page 8: To Adjust The Needle Bar Height

    TO ADJUST THE NEEDLE BAR HEIGHT The needle bar height means the distance between the upper edge of the point of hook and the upper edge of the needle eye when the point of the hook meets the right side of the needle in the upward travel of the needle bar from the lowest position with stitch pattern #2 ( selected.
  • Page 9: To Adjust The Hook Timing

    TO ADJUST THE HOOK TIMING When pattern #2 ( ) is selected, the amount of ascending travel of the needle bar from its lowest position to the position where the tip of the rotary hook exactly meets the right side of the needle should be 3.25 to 3.55 mm.
  • Page 10: To Adjust The Upper Shaft Shield Plate Position

    TO ADJUST THE UPPER SHAFT SHIELD PLATE POSITION NOTE: When the machine is set for zigzag stitching, the needle should start to swing 7.0 to 8.2 mm above the surface of the needle plate. Remove the top cover unit. Turn on the power switch. Then select zigzag pattern #8 (see page 8). Turn the hand wheel toward you slowly with your hand until the needle starts to swing.
  • Page 11: To Adjust The Needle Thread Tension

    TO ADJUST THE NEEDLE THREAD TENSION Turn on the power switch, select the pattern #9 ( ) and press the S/S key to turn the hand wheel 2 to 3 rotations. Open the face plate and adjust the thread tension with a screwdriver in the direction of: A to looser the tension.
  • Page 12: To Adjust The Tension Release Mechanism For Knee Lifter

    TO ADJUST THE TENSION RELEASE MECHANISM FOR KNEE LIFTER When the presser foot lifter is raised, the tension disc supporter should move by approx. 0.8 mm before adjusting the tension release mechanism for the knee lifter. Remove the top cover unit (see page 3). Lower the presser foot lifter, raise the needle bar to its highest position, attach the foot (A) and lower the presser foot.
  • Page 13: To Change The Threader Plate And Adjustment

    TO CHANGE THE THREADER PLATE AND ADJUSTMENT TO REMOVE Raise the needle to its highest position and lower the threader knob to its lowest position. Loosen the screw and remove the threader plate. (Fig. 1) TO ADJUST NOTE: Use #11 needle to adjust the threader plate position. If the hook of the threader plate touches left or right side, loosen the screw and adjust the hook position.
  • Page 14: To Change Front Panel ("A" Board Unit) 1

    TO CHANGE FRONT PANEL (“A” BOARD UNIT) 1 TO REMOVE Remove top cover, belt cover and bed cover (see page 3, 4, 5), Disconnect the LCD connector from inverter and remove it from cord guide. Remove screw A and loosen screws B, C, D. Pull out 17 connectors form the printed circuit board (“A”...
  • Page 15: To Change Printed Circuit Board ("A" Board Unit) 2

    TO CHANGE PRINTED CIRCUIT BOARD (“A” BOARD UNIT) 2 TO REMOVE 1. Remove front panel (see page 14). Disconnect the LCD and the touch panel flat cable and “F” board connector from “A” board unit. Remove 6 screws to disconnect the printed circuit board “A” and card guide. TO ATTACH Insert the card guide boss to the rounded hole of card connector until connected.
  • Page 16: Drawing For "A" Board Connectors (Front Panel Complete Unit)

    DRAWING FOR “A” BOARD CONNECTORS (FRONT PANEL COMPLETE UNIT) Buttonhole sensor Thread tension stepping motor Pressure sensor Zigzag width stepping motor Thread tension sensor Feed stepping motor LCD module X axis stepping motor for embroidery Position sensor Y axis stepping motor for embroidery Inverter Bobbin thread sensor Feed dog up/down switch...
  • Page 17: To Change Board C And Fuse

    TO ATTACH Follow the above procedure in reverse. Attach the base unit. (Check the feed dog up/down position with “ADJ” key after attaching the base unit.) TO CHANGE THE FUSE After remove the board “C” case unit, remove two setscrews to pull out the printed circuit board “C”.
  • Page 18: To Change Dc Motor And Belt Tension Adjustment

    TO CHANGE DC MOTOR AND BELT TENSION ADJUSTMENT TO REMOVE 1. Remove the belt cover (see page 4). Pull out the plug connector from “A” board unit and remove 2 screws. Then remove the lamp switch fixing plate. Pull out the motor connector from “A” board unit and remove 2 screws. Then remove the DC motor unit.
  • Page 19: To Change The Transformer

    TO CHANGE THE TRANSFORMER TO REMOVE Remove the front panel (board A unit) (see page 14). Remove the cord guide (see page 7) and the DC motor (see page 18). Remove two connectors of transformer from C board case unit. Remove the three screws and pull out the transformer.
  • Page 20: To Change The Receptacle (Machine Socket Unit)

    TO CHANGE THE RECEPTACLE (MACHINE SOCKET UNIT) TO REMOVE 1. Remove the belt cover (see page 4). Cut the cord binder. Pull out the connectors from board A unit and board “C” case unit. Remove two set screws and change the receptacle (machine socket unit). TO ATTACH Follow the above procedure in reverse.
  • Page 21: To Change The Lcd Unit

    TO CHANGE THE LCD UNIT TO REMOVE 1. Remove the front cover (board “A”) (see page 14, 15). Loosen two screws A and remove A board fixing plate. Loosen four screws B and remove the LCD frame unit. TO ATTACH Follow the above procedure in reverse.
  • Page 22: To Adjust Presser Foot Sensor (1)

    TO ADJUST PRESSER FOOT SENSOR (1) Enter adjustment mode: (Turn the power switch on while pressing the S/S key and the reverse key. Next, press needle stop key within two seconds, then press the needle stop key again.) Attach presser foot “A” and set the pressure dial at “3” Lower the presser foot. Turn the hand wheel toward you to bring the needle bar to its lowest position.
  • Page 23: To Adjust Presser Foot Sensor (2)

    TO ADJUST PRESSER FOOT SENSOR (2) Set the presser dial at “2.” Aft ach embroidery foot “P” and lower the presser foot slowly. Turn the hand wheel toward you to bring the needle bar to its highest position. 10. Watch The LCD screen while moving the shielding plate along the free play. LCD shows: OPEN only correctly adjusted.
  • Page 24: To Adjust Bobbin Thread Sensor

    TO ADJUST BOBBIN THREAD SENSOR NOTE: Insert the bobbin to the bobbin holder without bobbin Thread. When you check the bobbin thread sensor adjusting mode. (Press S/S key and reverse stitch key together while turning the power switch, Then press The auto-look key and S/S key next with in a few seconds.
  • Page 25: To Replace The Presser Bar Sensor To Remove

    TO REPLACE THE PRESSER BAR SENSOR TO REMOVE Remove the top cover unit (see page 3). Remove the screw and the presser bar sensor. Unplug the presser bar sensor connector from the board “F”. Remove the cord from the cord guide and remove the sensor unit. TO ATTACH Follow the above procedure in reverse.
  • Page 26: To Adjust The Buttonhole Lever

    TO ADJUST THE BUTTONHOLE LEVER Enter adjusting mode. (Press the S/S key and the reverse key while turning the power switch on. Press the lock stitch key and needle up/down key within seconds.) The LCD screen shows “BH SENSOR START CLOSED.” Loosen screw “A”...
  • Page 27: To Change The Buttonhole Lever (Unit) To Remove

    TO CHANGE THE BH LEVER (UNIT) TO REMOVE Loosen screw and remove the BH shielding plate. Remove the snap ring. Pull out the BH lever unit. TO ATTACH Slide The BH lever unit (without BH shielding plate) onto the shaft as shown below and put the snap ring on the shaft.
  • Page 28: To Change Buttonhole Sensor Unit To Remove

    TO CHANGE BH SENSOR UNIT TO REMOVE Remove the top cover unit (see page 3). Loosen the screw and remove the BH sensor from the sensor fixing plate. Pull out the BH sensor connector from board F and pull out the cord from the cord guide (1), (2).
  • Page 29: To Adjust The Feed Dog Up/Down Function

    TO ADJUST THE FEED DOG UP/DOWN FUNCTION The feed dog drops automatically when selecting embroidery sewing and rises auto-matically when selecting normal stitches. Remove the carriage cover cap. (Pull the carriage away from the machine a little and pry off the cover cap with a screwdriver, as shown below.) Loosen the two screws.
  • Page 30: To Adjust The Knee Lifter Position

    TO ADJUST THE KNEE LIFTER POSITION NOTE: Before adjusting the knee lifter position, check the presser bar height with foot P (embroidery foot) (see page 21). Remove the top cover and belt cover (see page 3, 4). Remove the receptacle unit (loosen screws and move the receptacle slightly away from original position).
  • Page 31 DIAGNOSIS CHART CHECK OPERATION If nothing happens when you turn on The power switch, turn off The power and wait 4-5 minute. Then turn on switch. STEPS TESTING OPERATION CORRECT CONDITION DEFECTIVE CONDITION & CORRECTION • Buzzer sounds (LCD shows buzzer & •...

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