Adjustment Of Timing Of Lateral Needle Swing - Janome HD 3000 Servicing Manual

ADJUSTMENT OF TIMING OF LATERAL NEEDLE SWING

If the needle bar moves sidewise while the needle is in the fabric in zigzag stitching, then make
adjustment in the procedure given below. The needle should start swinging from a position 2 to
3 mm above the top surface of the needle plate.
(1) Remove the top cover (unit), set the pattern selector dial at " " and select the maximum
zigzag width.
(2) Loosen the two hexagon socket screws of the upper shaft worm gear.
(3) While holding the upper shaft worm gear in place, carefully turn the balance wheel to make
adjustment so that lateral needle swing starts from a position 2 to 3 mm above the top
surface of the needle plate in right outflow.
(4) Tighten the two hexagon socket screws of the upper shaft worm gear.
(5) Attach the top cover (unit).
(Note)
For removal and attachment of the top cover (unit), refer to page 2.
After adjustment of the timing of lateral needle swing, make sure that there is no backlash
between the upper shaft worm gear and the gear and smooth rotation is obtained.
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