ELNA eXperience 620 Service Manual
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ELNA eXperience 620 Service Manual

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SERVICE MANUAL
eXperience 620

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Summary of Contents for ELNA eXperience 620

  • Page 1 SERVICE MANUAL eXperience 620...

  • Page 2: Table Of Contents

    CONTENTS WHAT TO DO WHEN .................. 1-3 SERVICE ACCESS (1) FACE COVER............4 SERVICE ACCESS (2) TOP COVER ............. 5 SERVICE ACCESS (3) BELT COVER ............6 SERVICE ACCESS (4) BED COVER & BASE..........7 SERVICE ACCESS (5) FRONT COVER ............8 SERVICE ACCESS (6) REAR COVER ............

  • Page 3: What To Do When

    MODEL: eXperience 620 WHAT TO DO WHEN CONDITION CAUSE HOW TO FIX REFERENCE 1. SKIPPING 1. NEEDLE IS NOT INSERTED INSERT THE NEEDLE PROPERLY. STITCHES PROPERLY. 2. NEEDLE IS BENT OR WORN. CHANGE THE NEEDLE. 3. INCORRECTLY THREADED. RETHREAD. 4. NEEDLE OR THREAD ARE...
  • Page 4 MODEL: eXperience 620 CONDITION CAUSE HOW TO FIX REFERENCE 3. BREAKING 1. INITIAL SEWING SPEED IS START WITH MEDIUM SPEED. UPPER TOO FAST. THREAD 2. THREAD PATH IS INCORRECT. USE THE PROPER THREAD PATH. 3. NEEDLE IS BENT OR DULL.
  • Page 5 MODEL: eXperience 620 CONDITION CAUSE HOW TO FIX REFERENCE 6. NOISY 1. BACKLASH BETWEEN HOOK SEE MECHANICAL ADJUSTMENT P. 15 OPERATION GEAR AND LOWER “BACKLASH (LOWER SHAFT GEAR)”. SHAFT GEAR IS TOO GREAT. 2. LOWER SHAFT GEAR IS ELIMINATE THE LOOSENESS.

  • Page 6: Service Access (1) Face Cover

    MODEL: eXperience 620 SERVICE ACCESS (1) FACE COVER (UNIT) TO REMOVE: 1. Remove the cap and setscrew. 2. Remove the face cover TO ATTACH: 3. Follow the procedure above in reverse. Face cover Setscrew...

  • Page 7: Service Access (2) Top Cover

    MODEL: eXperience 620 SERVICE ACCESS (2) TOP COVER (UNIT) TO REMOVE: 1. Raise the carrying handle and remove the setscrew (A). 2. Open the top cover and remove the setscrew (B). 3. Lift up the top cover and remove it from the rear side.

  • Page 8: Service Access (3) Belt Cover

    MODEL: eXperience 620 SERVICE ACCESS (3) REPLACING THE BELT COVER TO REMOVE: 1. Raise the carrying handle and loosen the screw (A). 2. Remove the cap and the screw (B). 3. Loosen the screw (C) and the belt cover. TO ATTACH: 4.

  • Page 9: Service Access (4) Bed Cover & Base

    MODEL: eXperience 620 SERVICE ACCESS (4) REPLACING THE BED COVER (UNIT) TO REMOVE: 1. Push the drop feed dog lever to the left. 2. Remove the setscrews (A), then remove the bed cover (unit). TO ATTACH: 3. Push the drop feed dog lever to the left.

  • Page 10: Service Access (5)

    MODEL: eXperience 620 SERVICE ACCESS (5) REPLACING THE FRONT COVER (UNIT) TO REMOVE: 1. Remove the face cover (unit), top cover (unit) and belt cover. (See page 4, 5, 6) 2. Loosen the setscrews (A), (B) and (C). 3. Then remove the front cover (unit).

  • Page 11: Service Access (6) Rear Cover

    MODEL: eXperience 620 SERVICE ACCESS (6) REPLACING THE REAR COVER TO REMOVE: 1. Remove the face cover (unit), top cover (unit) and belt cover. (See page 4, 5, 6) 2. Loosen the setscrews (A), (B), (C) and (D), then remove the cap and setscrew (E).

  • Page 12: Adjusting Presser Foot Height And Alignment

    MODEL: eXperience 620 ADJUSTING PRESSER FOOT HEIGHT AND ALIGNMENT When the presser foot is raised, the clearance between the presser foot and the needle plate should be 5.7 to 6.3 mm. 1. Remove the face cover and raise the presser foot.

  • Page 13: Needle Drop Position Alignment

    MODEL: eXperience 620 NEEDLE DROP POSITION ALIGNMENT Select the stitch pattern " "; the standard needle drop position should be at the center of the needle plate hole. When the needle swings in maximum zigzag width " ", the clearance between both ends of the needle hole in the needle plate and the needle should be 0.2 mm or more.

  • Page 14: Adjusting Hook Timing

    MODEL: eXperience 620 ADJUSTING HOOK TIMING The hook timing is that amount of ascending travel of the needle bar from its lowest position where the tip of the rotary hook meets the right side of the needle should be 3.25 to 3.55 mm.

  • Page 15: Adjusting Needle Bar Height

    MODEL: eXperience 620 ADJUSTING NEEDLE BAR HEIGHT The standard distance between the upper edge of the needle eye and the tip of the rotary hook should be in the range of 1.6 to 2.0 mm when the rotary hook meets the right side of the needle in ascending travel of needle from its lowest position.

  • Page 16: Adjusting Clearance Between Needle And Hook

    MODEL: eXperience 620 ADJUSTING CLEARANCE BETWEEN NEEDLE AND HOOK The clearance between needle and rotary hook should be -0.10 to +0.05 mm. 1. Turn the power switch on. Select the zigzag stitch " " and set the zigzag width at maximum.

  • Page 17: Adjusting Backlash Between Hook Drive Gear And Lower Shaft Gear

    MODEL: eXperience 620 ADJUSTING BACKLASH BETWEEN HOOK DRIVE GEAR AND LOWER SHAFT GEAR Rotary play of gears should be 0.8 mm or less when the tip of the rotary hook is within the width of the feed dog as shown below.

  • Page 18: Feed Dog Height Adjustment

    MODEL: eXperience 620 FEED DOG HEIGHT ADJUSTMENT When the presser foot is lowered with the pressure dial set at "3", the highest position of the feed dog should be 0.8 to 0.9 mm above the surface of the needle plate.

  • Page 19: Zigzag Synchronization

    MODEL: eXperience 620 ZIGZAG SYNCHRONIZATION During lateral movement of the needle in zigzag sewing, the needle should start to swing 6.3 to 7.5 mm above the needle plate. 1. Remove the cover. 2. Turn on the power switch and set the pattern selector dial at maximum zigzag width.

  • Page 20: Needle Thread Tension

    MODEL: eXperience 620 NEEDLE THREAD TENSION When the polyester sewing thread #50 (white) is passed through and pullead up as in fig. 1, the thread tension should be 75 to 90 grams (the thread pulling speed: Aprox. 110 mm/sec) with the thread tension dial set at "auto).

  • Page 21: Stretch Stitch Feed Balance

    MODEL: eXperience 620 STRETCH STITCH FEED BALANCE When a stretch pattern is sewn with the feed balancing dial (C) set at the standard mark ( ), the pattern should be as indicated with the "0". 1. Set up the machine in adjusting mode (see below).

  • Page 22: Replacement And Adjustment

    MODEL: eXperience 620 REPLACEMENT AND ADJUSTMENT OF THE NEEDLE THREADER PLATE If the hook of the threader plate is damaged, change or adjust the part as follows: TO CHANGE THE THREADER PLATE: TO CHANGE: 1. Push down the needle threader knob and pull the needle threader plate (A) out to remove it (FIG.

  • Page 23: Connector Diagram

    MODEL: eXperience 620 CONNECTOR DIAGRAM Refer to the diagram for locating the connector post on the circuit board. TO DISCONNECT THE CONNECTORS: 1. Grasp the connector body with your fingers and pull. Do not pull the lead wire, it may damage the contact sleeves inside the connector.

  • Page 24: Self Diagnostic Test

    MODEL: eXperience 620 SELF DIAGNOSTIC TEST PREPARATION: • TURN OFF THE POWER SWITCH. • SHIFT THE BOBBIN WINDER SPINDLE TO THE LEFT. • RAISE THE FEED DOG. • SHIFT THE SLIDE VOLUME TO THE LEFT. • REMOVE THE PRESSER FOOT AND RAISE THE PRESSER FOOT LIFTER.
  • Page 25 MODEL: eXperience 620 SELF DIAGNOSTIC TEST OPERATION CORRECT RESULTS DEFECTIVE RESULTS Turn on the power switch • Beep sounds when buttons • No beep sound while pressing the “–” of stitch are pressed. • Does not enter self- width button and “+” of stitch •...
  • Page 26 MODEL: eXperience 620 SELF DIAGNOSTIC TEST OPERATION CORRECT RESULTS DEFECTIVE RESULTS UPPER Press the “–” of stitch width • When the needle is at the highest • LED does not display SHAFT button. ”07.” will be displayed position, as illustrated POSITION- on the LED for 1 second.

  • Page 27: Self Diagnostic Test

    MODEL: eXperience 620 SELF DIAGNOSTIC TEST OPERATION CORRECT RESULTS DEFECTIVE RESULTS Press the “–” of stitch width • Led displays “dc”. • The machine does MOTOR button. ”12.” will be displayed • Machine runs at the speed set not run.

  • Page 28: Replacing Printed Circuit Board "A

    MODEL: eXperience 620 REPLACING PRINTED CIRCUIT BOARD "A" TO REMOVE: 1. Remove the front cover (see page 8). 2. Unplug the connectors from the board "A". 3. Remove the 3 screws and remove board "A". TO INSTALL: 1. To install, follow the above procedure in reverse.

  • Page 29: Replacing Printed Circuit Board "K" And "F

    MODEL: eXperience 620 REPLACING PRINTED CIRCUIT BOARD "K" AND "F" REPLACING PRINTED CIRCUIT BOARD "K" TO REMOVE: 1. Remove the front cover unit (see page 8) 2. Remove the set screws "A" and the printed board "K". TO INSTALL: 3. To install the slide volume, follow the procedure above in reverse.

  • Page 30: Replacing Dc Motor And Adjusting Motor Belt Tension

    MODEL: eXperience 620 REPLACING DC MOTOR AND ADJUSTING MOTOR BELT TENSION TO REMOVE: 1. Remove the belt cover (see page 8). 2. Disconnect the motor connector. Remove the two setscrews, then remove the DC motor and belt. TO ATTACH: 3. Set the motor in machine and replace screws.

  • Page 31: Replacing The Fuses

    MODEL: eXperience 620 REPLACING THE FUSES TO REMOVE: 1. Remove the front covers (see page 8). 2. Remove the printed circuit board "A". Remove the four setscrews and remove the cover from the printed circuit board "A". 3. Remove the fuse (pry up the fuse with a screwdriver).

  • Page 32: Replacing Machine Socket (Unit)

    MODEL: eXperience 620 REPLACING MACHINE SOCKET (UNIT) REPLACING THE MACHINE SOCKET TO REMOVE: 1. Remove the front and rear covers (see page 8). 2. Remove the machine socket connector from the printed circuit board "A". 3. Remove the two set screws and remove the machine socket.

  • Page 33: Replacing The Transformer

    MODEL: eXperience 620 REPLACING THE TRANSFORMER REPLACING THE TRANSFORMER (UNIT) TO REMOVE: 1. Remove the circuit board "A". (See page 8) 2. Remove the two setscrews and remove the transformer (unit). TO INSTALL: 3. To install the transformer, follow the above procedure in reverse.

  • Page 34: Replacing The Zigzag Width Motor

    MODEL: eXperience 620 REPLACING THE ZIGZAG WIDTH MOTOR REPLACING THE ZIGZAG WIDTH MOTOR TO REMOVE: 1. Remove the front cover (unit) (see page 8). 2. Remove the printed circuit board "A". 3. Remove the two setscrews (B) and remove the zigzag width motor.

  • Page 35: Replacing Feed Stepping Motor

    MODEL: eXperience 620 REPLACING FEED STEPPING MOTOR TO REMOVE: 1. Remove the belt cover and base (see pages 6, 7). 2. Remove the snap ring (E-3). 3. Remove the setscrews (A), (B). Remove the feed stepping motor. TO ATTACH: 4. Follow the above procedure in reverse.

  • Page 36: Adjusting Buttonhole Lever Position

    MODEL: eXperience 620 ADJUSTING BUTTONHOLE LEVER POSITION TO ADJUST THE BUTTONHOLE LEVER GUIDE: 1. Set the machine in buttonhole sensor adjusting mode. (See below. The screen should display "H" or "L".) 2. Remove the face cover and loosen setscrew (A).

  • Page 37: Adjusting The Bobbin Winding Switch

    MODEL: eXperience 620 ADJUSTING THE BOBBIN WINDING SWITCH 1. Enter adjusting mode. 2. Remove the top cover (see page 5). 3. Loosen the setscrews to adjust the position of the switch fixing plate. The led should show "][" when the bobbin winder spindle is set to the bobbin winding position, and/ or "||"...

  • Page 38: Oiling

    MODEL: eXperience 620 OILING Factory lubricated parts will provide years of household sewing without routine oiling, but you should still check for possible lubrication needs whenever servicing machines. OIL: Use good quality sewing machine oil at the points (A, B, C, D, E, F, G, H, I, J & K) indicated by the black arrows.

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