Husqvarna VIKING E10 - Zigzag Needle Movement and Worm Gear Play

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Turning movement of the needle in zigzag and the play of the worm gear
Check 1
The needle should start swinging when the needle tip is 5 - 10 mm above the needle plate (G) and should stop swinging
10 - 5 mm before entering into the hole of needle plate.
Check 2
It is impossible to obtain an equally large play in one rotation of the cog wheel, but it should be as small as possible at
the tightest spot during the revolution.
Rotate the cogwheel (C) back and forth and check the play. It should be zero or as small as possible.
Adjustment
1. Remove the face cover, fre arm cover, base cover, back cover and front cover.
2. Select the zigzag stitch ”C” and set the width at “Max”.
3. Turn the hand wheel to set the needle bar at the right needle position.
4. Loosen the 2mm Allen screws (a, b).
5. Insert the Allen key into one of the Allen screws (a,b).
6. Turn the hand wheel so that the needle tip comes 5 - 10 mm above
the needle plate (G) in upward travel as shown.
- If needle fl ow is less than 5 mm, turn arm shaft worm gear (D) toward back (K).
- If needle fl ow is more than 10 mm, turn arm shaft worm gear (D) toward front (M).
7. Tighten the 2 Allen screws.
8. Check the swing of the needle.
9. Check that setting play of worm gear (D) sideways hasn’t changed.
If so …
Loosen the 2 Allen socket screws (a, b) again and move the worm gear:
- to increase the backlash, move the worm gear (D) to the direction of (E).
- to decrease the backlash, move the worm gear (D) to the direction of (F).
10. Tighten the 2 Allen screws.
11. Re-check “Turning movement of the needle in zigzag” again.
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5mm
10mm