Janome Mystyle 100 Service Manual
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Janome Mystyle 100 Service Manual

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SERVICE MANUAL
Mystyle 100

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  • Page 1 SERVICE MANUAL Mystyle 100...

  • Page 2: Table Of Contents

    CONTENTS WHAT TO DO WHEN ..................1~3 SERVICE ACCESS FACE COVER ..................4 FRONT COVER ..................5 REAR COVER ..................6 MECHANICAL ADJUSTMENT TOP TENSION ..................7 PRESSER BAR HEIGHT AND ALIGNMENT ......... 8 NEEDLE SWING ..................9 NEEDLE DROP POSITION ..............10 HOOK TIMING ..................

  • Page 3: What To Do When

    What to Do When Condition Cause How to fix Reference 1. SKipped 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 Use the recommended inappropriate for sewing needle and thread.
  • Page 4 Condition Cause How to fix Reference Needle 1. Initial sewing speed is Start with medium speed. thread too fast. breaks 2. Thread path is incorrect. Use the proper thread path. 3. Needle is bent or dull. Replace with a new needle. 4.
  • Page 5 Condition Cause How to fix Reference 6. Noisy 1. Backlash between See mechanical p.15 operation the hook gear and adjustment “Backlash lower shaft gear is too between Hook Gear and great. Lower Shaft Gear”. 2. Lower shaft gear is loose. Eliminate the looseness.

  • Page 6: Service Access

    SERVICE ACCESS FACE COVER TO REMOVE: REMOVE THE SETSCREWS (A). TAKE THE FACE COVER (B) OFF. TO ATTACH: FOLLOW THE ABOVE PROCEDURE IN REVERSE.

  • Page 7: Front Cover

    SERVICE ACCESS FRONT COVER DIALS TO REMOVE REMOVE THE FACE COVER (SEE PAGE 4), AND EXTENSION TABLE. REMOVE THE CAP, SETSCREWS (B), (D), (E), (F), (G) AND DIALS. LOOSEN THE SETSCREW (A), (C). REMOVE THE FRONT COVER. TO ATTACH FOLLOW THE ABOVE PROCEDURE IN REVERSE.

  • Page 8: Rear Cover

    SERVICE ACCESS REAR COVER REAR COVER TO REMOVE REMOVE THE FACE COVER AND FRONT COVER. (SEE PAGE 4, 5) REMOVE THE SETSCREWS (A), (B), (C), (D) AND (E). LOWER THE PRESSER FOOT LIFTER. REMOVE THE REAR COVER. TO ATTACH FOLLOW THE ABOVE PROCEDURE IN REVRSE.

  • Page 9: Mechanical Adjustment

    MECHANICAL ADJUSTMENT TOP TENSION TO CHECK: THE STANDARD UPPER THREAD TENSION SHOULD BE 75 - 90g WHEN PULLING THE THREAD (COTTON THREAD #50) IN THE DIRECTION OF (B) WITH SETTING THE TENSION DIAL AT “4”. (MAKE SURE THE FOOT SHOULD BE LOWERED.) IF THE TENSION IS OUT OF THE STANDARD RANGE, ADJUST IT AS FOLLOWS: ADJUSTMENT PROCEDURE: REMOVE THE FACE COVER AND FRONT COVER.

  • Page 10: Presser Bar Height And Alignment

    MECHANICAL ADJUSTMENT PRESSER BAR HEIGHT AND ALIGNMENT TO CHECK: RAISE THE PRESSER FOOT LIFTER (A). THE DISTANCE BETWEEN THE PRESSER FOOT (D) AND THE NEEDLE PLATE (E) SHOULD BE 6.0MM (0.24"). ADJUSTMENT PROCEDURE: REMOVE THE FACE COVER. (SEE PAGE 4.) REMOVE THE SCREWS (B) AND TAKE THE LAMP SOCKET OFF.

  • Page 11: Needle Swing

    MECHANICAL ADJUSTMENT NEEDLE SWING TO CHECK: ADJUST THE NEEDLE SWING ACCORDING TO THE FOLLOWING PROCEDURE, IF THE NEEDLE BAR STARTS MOVING SIDEWAYS WHILE THE NEEDLE IS IN THE FABRIC AT SEWING THE ZIGZAG PATTERN (WITH MAXIMUM ZIGZAG WIDTH). ADJUSTMENT PROCEDURE: SET THE PATTERN SELECTOR DIAL WITH MAXIMUM ZIGZAG WIDTH, AND REMOVE THE FRONT COVER.

  • Page 12: Needle Drop Position

    MACHANICAL ADJUSTMENT NEEDLE DROP POSITION SET THE SELECTOR DIAL AT STRAIGHT STITCH. THE NEEDLE DROP POSITION SHOULD BE THE CENTER OF THE NEEDLE PLATE HOLE. SET THE SELECTOR DIAL AT ZIGZAG STITCH WITH MAXIMUM ZIGZAG WIDTH. THE CLEARANCE BETWEEN THE NEEDLE DROP POSITION AND THE EDGE OF NEEDLE PLATE HOLE SHOULD BE 0.2 MM OR MORE FOR BOTH SIDE.

  • Page 13: Hook Timing

    MACHANICAL ADJUSTMENT HOOK TIMING SET THE PATTERN SELECTOR DIAL AT ZIGZAG STITCH WITH MAXIMUM ZIGZAG WIDTH. THE AMOUNT OF ASCENDING TRAVEL OF THE NEEDLE BAR FROM ITS LOWER POSITION TO THE POSITION WHERE THE TIP OF THE ROTARY HOOK EXACTLY MEETS THE RIGHT SIDE OF THE NEEDLE SHOULD BE 1.4 - 2.0 MM.

  • Page 14: Needle Bar Height

    MECHANICAL ADJUSTMENT NEEDLE BAR HEIGHT TO CHECK: THE STANDARD DISTANCE BETWEEN THE UPPER EDGE OF THE NEEDLE EYE AND THE UPPER SURFACE OF THE HOOK RACE SHOULD BE IN THE RANGE OF 3.0~3.6 MM WHEN THE HOOK POINT MEETS THE RIGHT SIDE OF THE NEEDLE IN ITS ASCENDING TRAVEL FROM THE RIGHT LOWEST POSITION OF THE MAXIMUM WIDTH ZIGZAG STITCH.

  • Page 15: Adjusting Clearance Between Needle And Hook Point

    MECHANICAL ADJUSTMENT ADJUSTING CLEARANCE BETWEEN NEEDLE AND HOOK POINT THE STANDARD CLEARANCE BETWEEN THE NEEDLE AND HOOK POINT SHOULD BE –0.10 TO + 0.05 MM. TO ADJUST: REMOVE THE FACE COVER (SEE PAGE 4). SELECT THE ZIGZAG STITCH WITH MAXIMUM STITCH WIDTH. BRING THE NEEDLE TO THE RIGHT POSITION.

  • Page 16: Feed Dog Height

    MECHANICAL ADJUSTMENT FEED DOG HEIGHT TO CHECK: LOWER THE PRESSER FOOT. TURN THE HANDWHEEL TOWARD YOU UNTIL THE FEED DOG COMES TO ITS HIGHEST POSITION. THE DISTANCE BETWEEN THE FEED DOG AND THE UPPER SURFACE OF THE NEEDLE PLATE SHOULD BE 0.8–0.95 MM. IF IT IS NOT IN THE RANGE, ADJUST AS FOLLOWS.

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

    MECHANICAL ADJUSTMENT BACKLUSH BETWEEN HOOK GEAR AND LOWER SHAFT GEAR TO CHECK: THE ROTARY PLAY OF THE HOOK POINT SHOULD BE 0.8 MM OR LESS WHEN IT IS IN BETWEEN THE SPAN OF THE FEED DOG TEETH, AND THE GEARS SHOULD TURN SMOOTHLY.

  • Page 18: Distorted Pattern

    MECHANICAL ADJUSTMENT DISTORTED PATTERN TO CHECK: IF THE STRETCH STITCH PATTERNS ARE DISTORTED WITH SETTING THE STITCH LENGTH CONTROL AT “ S.S. ”. (IN CASE OF BEING A DIFFERENCE BETWEEN FORWARD FEEDING AND BACKWARD FEEDING DURING STRETCH STITCH PATTERNS), MAKE AN ADJUSTMENT AS FOLLOWS: ADJUSTMENT PROCEDURE: RAISE THE CARRYING HANDLE.

  • Page 19: Buttonhole Stitch Balance

    MECHANICAL ADJUSTMENT BUTTONHOLE STITCH BALANCE WHEN SEWING BUTTONHOLES, THE STITCHES ON EACH SIDE OF THE BUTTONHOLE SHOULD HAVE THE SAME STITCH DENSITY. THE RANGE OF 9 - 11 STITCHES IN THE RIGHT SIDE ROW AGAINST 10 STITCHES IN THE LEFT SIDE ROW CONSIDERED ACCEPTABLE. 1.

  • Page 20: Bartack Feed Of Buttonhole

    MECHANICAL ADJUSTMENT BARTACK FEED OF BUTTONHOLE TO CHECK: IF THE MATERIAL IS FEED FORWARD OR BACKWARD WHEN SEWING BARTACK ON BUTTONHOLE, MAKE AN ADJUSTMENT AS FOLLOWS: ADJUSTMENT PROCEDURE: SET THE PATTERN SELECTOR CONTROL AT “ ” AND THE STITCH LENGTH CONTROL AT “4”.

  • Page 21: Disengagement Of Cam Follower

    MECHANICAL ADJUSTMENT DISENGAGEMENT OF CAM FOLLOWER TO CHECK: IF THE CLEARANCE BETWEEN THE CAM FOLLOWER AND THE TOP CONVEX OF THE ZIGZAG CAM IS NOT ENOUGH, THE PATTERN SELECTOR DIAL IS BLOCKED OR WILL NOT SELECT THE CORRECT PATTERN. ADJUSTMENT PROCEDURE: REMOVE THE FRONT COVER (SEE PAGE 5).

  • Page 22: Motor Belt Tension

    MECHANICAL ADJUSTMENT MOTOR BELT TENSION TO CHECK: IF THE MOTOR BELT TENSION IS TOO TIGHT OR TOO LOOSE, IT CAN CAUSE A BELT NOISE: IF THE TENSION IS TOO TIGHT, IT CAN CAUSE THE MACHINE TO RUN SLOWLY AND THE MOTOR TO OVERLOAD; IF THE TENSION IS TOO LOOSE; IT CAN CAUSE THE BELT TEETH ON THE MOTOR PULLEY TO JUMP.

  • Page 23: Wiring

    WIRING WIRING FOR MACHINE SOCKET UNIT (FOR 110~120V) RIDGE M : MOTOR L : LAMP RIDGE (FOR 220~240V) M : MOTOR L : LAMP...

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