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Service Manual

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Summary of Contents for ELNA 505

  • Page 1 Service Manual...
  • Page 2: Table Of Contents

    CONTENTS SERVICE ACCESS FACE COVER ........................1 BELT COVER ........................2 BASE PLATE ........................3 FRONT COVER ......................... 4 REAR COVER ........................5 MECHANICAL ADJUSTMENT PRESSER BAR HEIGHT AND ALIGNMENT ..............6 NEEDLE BAR HEIGHT ..................... 7 MOTOR BELT TENSION ....................8 WIRING..........................
  • Page 3: Service Access

    SERVICE ACCESS (1) FACE COVER TO REMOVE: Remove the cap (a) and setscrew (B). Unhook ribs from the rear cover. remove the face cover. TO ATTACH: Follow the above procedure in reverse. Rear cover Face plate...
  • Page 4: Belt Cover

    SERVICE ACCESS (2) BELT COVER TO REMOVE: Remove setscrew (C). Take the belt cover out. TO ATTACH: Follow the above procedure in reverse. Belt cover...
  • Page 5: Base Plate

    SERVICE ACCESS (3) BASE PLATE TO REMOVE: Remove the setscrews (A). Remove the base plate. TO ATTACH: Mount the base plate and secure it with four setscrews. Base plate...
  • Page 6: Front Cover

    SERVICE ACCESS (4) FRONT COVER TO REMOVE: Remove the face cover, and remove the belt cover (see page 1-2). Loosen setscrews (A), (B), (C), (D), (E), and (F), remove setscrews (G) and (H), then remove the front cover. NOTE: Unhook the tab (J) from the rear cover when removing the front cover. TO ATTACH: Mount the front cover in reverse procedure of the removing.
  • Page 7: Rear Cover

    SERVICE ACCESS (5) REAR COVER TO REMOVE: Remove the face cover, and remove the belt cover (see page 1-2). Remove the setscrew (a) and the cover (L). Remove the cap(k) and remove the screws (B), (C), (D) and (J). Loosen the setscrew (E), (F), (G) and (H). Remove the rear cover.
  • Page 8: Mechanical Adjustment

    MECHANICAL ADJUSTMENT PRESSER BAR HEIGHT AND ALIGNMENT TO CHECK: Lower the presser foot lifter. The distance between bottom of presser foot and top of needle plate should be 4.0 mm (0.16") when the presser foot is set at the standard position (The second line from the top aligns with the bottom of the presser bar.) ADJUSTMENT PROCEDURE: Remove the face cover (see page 1).
  • Page 9: Needle Bar Height

    MECHANICAL ADJUSTMENT NEEDLE BAR HEIGHT When the needle bar is at its lowest position, the distance between the tip of the needle unit and the top of needle plate should be in the range of 15.7-16.3 mm. ADJUSTMENT PROCEDURE: Attach the needle plate. Turn the handwheel toward you until the needle bar reaches its lowest position.
  • Page 10: Motor Belt Tension

    MECHANICAL ADJUSTMENT MOTOR BELT TENSION TO CHECK: Improper belt tension may cause noise, overload of motor, slow running or motor belt jumping. The belt deflection should be 7 mm - 9 mm when pressing the middle of the motor belt with approximately 300 grams of pressure.
  • Page 11: Wiring

    WIRING 1. Wiring for machine socket unit. Motor Lamp...

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