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2 - 3 Needle Position at Zigzag Stitching<br />
SECTION 2 - 3<br />
PAGE 1<br />
Checking:<br />
1. Set machine at "zigzag stitching C, (maximum width)" by turning selector dial.<br />
2. Bring needle to right hand lowest position. Slowly lift up needle and observe<br />
its leftward movement when leaving upper surface of needle plate.<br />
3. Needle should move to left in the range of 0.1 - 0.3 mm when needle point<br />
comes about 1 mm above the needle plate surface.<br />
4. Following ( × ) marked illustrations indicate wrong situation.<br />
Too late<br />
Too early<br />
Adjustment:<br />
1. Remove front cover.<br />
2. Loosen one out of 2 screws (2) on worm gear (1). Another should be set<br />
temporarily.<br />
3. Holding hand wheel, turn worm gear (1), and adjust the angle of worm gear<br />
against gear.<br />
If side motion too early ð Turn worm gear (1) towards you.<br />
If side motion too late ð Turn worm gear (1) away from you.<br />
4. Tighten 2 screws (2) securely after adjustment.<br />
Gear<br />
NOTE: While adjustment, do not move worm gear along shaft. (Otherwise,<br />
engagement with gear and needle side motion is seriously changed.)
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