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Janome 659 Servicing Manual

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SERVICING MANUAL
Model 659

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Summary of Contents for Janome 659

  • Page 1 SERVICING MANUAL Model 659...

  • Page 2: Table Of Contents

    CONTENTS SERVICE ACCESS Face cover ........................2 Belt cover ........................3 Base plate ........................4 Bed cover ........................4 Front cover ........................5 Rear cover ........................6 Free arm cover ....................... 7 MECHANICAL ADJUSTMENT Top tension ........................8 Presser bar height and alignment .................. 9 Needle swing ........................

  • Page 3: Face Cover

    FACE COVER TO REMOVE: Remove the 2 set screws and the face cover. TO ATTACH: Replace the face cover (B) by lightly tightening the 2 set screws (A). Close the face cover (B), carefully aligning it with the arm. Then tighten the screws firmly.

  • Page 4: Belt Cover

    BELT COVER T COVER T COVER T COVER T COVER TO REMOVE: Loosen the set screw (A), and remove the belt cover rib (B) by pulling out the belt cover (C) rib from the front cover (D). TO ATTACH: 2. Mount the belt cover rib (B) to the front cover (D), then mount the belt cover (C) and tighten the set screw.

  • Page 5: Base Plate

    BASE PLA BASE PLA BASE PLA BASE PLA BASE PLATE Remove 3 set screws (A). Remove the base plate (C). BED COVER Remove 2 set screws (B). Remove the bed cover (D). When you attach the bed cover (D), set the drop lever (C) at the left position.

  • Page 6: Front Cover

    FRONT COVER FRONT COVER FRONT COVER FRONT COVER FRONT COVER TO REMOVE: Remove the belt cover (See page 3). Remove the selector dial (M) and dial plate (L). Remove the cap (N) , then set screws (A), (B). (C) and Arm thread guide (K). Loosen the set screws (D) and (E).

  • Page 7: Rear Cover

    REAR COVER REAR COVER REAR COVER REAR COVER REAR COVER TO REMOVE: Remove the belt cover (See page 3). Remove the cap (G). Remove the set screws (A), (B), (C), (D), (E) and (F). While pushing up the rear cover (O) near the notches (L), (M) and (N), pull upper part of the rear cover (See (Y) below).

  • Page 8: Free Arm Cover

    FREE FREE FREE ARM COVER FREE FREE ARM COVER ARM COVER ARM COVER ARM COVER TO REMOVE: Remove the set screw (A) and the needle plate (C). Remove the bed cover (See page 4). Remove the set screw (B) and the free arm cover (D). TO ATTACH: Follow the above procedure in reverse.

  • Page 9: Top Tension

    TOP TENSION TOP TENSION TOP TENSION TOP TENSION TOP TENSION TO CHECK: Set the tension dial (G) at “4” and raise the presser foot. Pass the thread (A) between the discs and draw the thread (A) down around the check spring holder as shown below.

  • Page 10: Presser Bar Height And Alignment

    PRESSER BAR HEIGHT PRESSER BAR HEIGHT PRESSER BAR HEIGHT AND PRESSER BAR HEIGHT PRESSER BAR HEIGHT AND ALIGNMENT ALIGNMENT ALIGNMENT ALIGNMENT ALIGNMENT TO CHECK: Raise the presser foot lever (B). The distance between the zigzag foot (A) and the needle plate (C) should be 6.0 mm (0.24").

  • Page 11: Needle Swing

    NEEDLE SWING NEEDLE SWING NEEDLE SWING NEEDLE SWING NEEDLE SWING TO CHECK: When sewing the zigzag pattern (with maximum zigzag width), if the needle bar starts moving sideways while the needle is in the fabric, adjust the needle swing according to the following procedure.

  • Page 12: Distribution Of Needle Swing

    DISTRIBUTION OF NEEDLE SWING DISTRIBUTION OF NEEDLE SWING DISTRIBUTION OF NEEDLE SWING DISTRIBUTION OF NEEDLE SWING DISTRIBUTION OF NEEDLE SWING When the pattern selector dial is set at the straight stitch (stitch No. 2), the needle should be positioned at the center of the needle plate hole (A). When the pattern selector dial is set at the zigzag (stitch No.

  • Page 13: Needle Clearance To Hook

    NEEDLE CLEARANCE TO HOOK NEEDLE CLEARANCE TO HOOK NEEDLE CLEARANCE TO HOOK NEEDLE CLEARANCE TO HOOK NEEDLE CLEARANCE TO HOOK TO CHECK: Set the pattern selector dial at the maximum zigzag stitch width. Remove the set screw (A) on the needle plate, and detach the needle plate (B) and bobbin holder (C).

  • Page 14: Backlash (Lower Shaft Gear)

    BACKLASH (LOWER SHAFT GEAR) TO CHECK: Remove set screw (A) to remove the needle plate (B) and the bobbin holder (C). Turn the hand wheel slowly toward you until the point of the hook (D) is between both ends (E) of the feed dog. 3.

  • Page 15: Needle Bar Height

    NEEDLE BAR HEIGHT NEEDLE BAR HEIGHT NEEDLE BAR HEIGHT NEEDLE BAR HEIGHT NEEDLE BAR HEIGHT When the point of the rotary hook exactly meets the right side of the size 14 needle (E) in ascending travel of the needle bar from its lowest position at the right needle drop position with the pattern selector dial at zigzag stitch (stitch No.

  • Page 16: Needle To Hook Timing

    NEEDLE TO HOOK TIMING NEEDLE TO HOOK TIMING NEEDLE TO HOOK TIMING NEEDLE TO HOOK TIMING NEEDLE TO HOOK TIMING With the needle bar swung to the right at the 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 to 2.0 mm.

  • Page 17: Feed Dog Height

    FEED DOG HEIGHT Lower the presser foot and turn the hand wheel toward you until the needle bar comes to the highest point of its travel. In this condition, the height of the feed dog above the needle plate should be 0.75 to 0.85 mm. Adjustment procedure: Set the stitch length dial at “4”, and lower the presser foot (H).

  • Page 18: Buttonhole Stitch Balance

    BUTTONHOLE STITCH BALANCE BUTTONHOLE STITCH BALANCE BUTTONHOLE STITCH BALANCE BUTTONHOLE STITCH BALANCE BUTTONHOLE STITCH BALANCE If there is a difference in stitch density between the right and left rows of a buttonhole, make an adjustment in the procedure given below. The left row should have 9 to 12 stitches compared with 10 stitches on the right row.

  • Page 19: Stretch Stitch Balance

    STRETCH STITCH BALANCE When a triple lock straight stitch (stitch No. 15) is sewn with the feed balancing dial (G) at the standard setting mark “ 4 “, the stitch should forms as shown in the figure below. If not balanced, make an adjustment as follows: Adjustment procedure: Remove the cap (F).

  • Page 20: Zero Feeding

    ZERO FEEDING ZERO FEEDING ZERO FEEDING ZERO FEEDING ZERO FEEDING TO CHECK: Set the pattern selector dial at straight stitch (stitch No. 2) and the stitch length dial (D) at “0”. Place a piece of paper under the presser foot and lower the foot. Check if the paper moves forward or backward when you turn the hand wheel toward you.

  • Page 21: Buttonhole Function (1)

    BUTTON HOLE FUNCTION (1) A buttonhole standard length is 3mm longer than the actual button. The length can be adjusted as follows: Adjustment procedure: Lower the feed dog and attach buttonhole foot (R). Then lower the foot (R). Open the face cover. Loosen set screw (A).
  • Page 22 BUTTONHOLE FUNCTION (2) If the bar tack on the buttonhole is sewn too early, or if no bar tack is sewn at all, adjust as follows: Adjustment procedure: Remove the belt cover (See page 3). Turn the hexagon socket screw (A) in the direction of: (C) if bar tack is sewn too soon (D) if bar tack is sewn too late.

  • Page 23: Motor Belt Tension

    MOTOR BELT TENSION TO CHECK: If the motor belt tension is too tight or too loose, it may cause belt noise. If motor belt tension is too tight it may cause the machine to run slowly and overload the motor. If motor belt tension is too loose it may cause the belt teeth on the motor pulley to jump.

  • Page 24: Threader Plate

    TO CHANGE THE THREADER PLATE: Raise the needle to its highest position and lower the threader knob (A) to its lowest position. Loosen the set screw (B) and remove the threader plate (C) as shown in (** X **). TO CHANGE THE NEEDLE THREADER: If the hook (D) of the threader plate (C) touches the left or right side of the needle eye, loosen the set screw (B) and adjust the hook position as shown in (** Y **).

  • Page 25: Wiring Of Terminal Block

    WIRING OF TERMINAL BLOCK from lamp socket M: from motor...

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