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8.The gap between the needle and the hook
If the needle hits against the hook, it may be the cause of needle and thread breakages. If the gap between
needle and hook is too big, it will cause to skip stitches.
Check
1.Choose the straight stitch pattern and move the needle position
to the left (-3.5). (Straight stitch on left needle postion.)
2.Insert a new needle size 90 universal in the machine.
3.Remove the bobbin case.
4.Rotate hand wheel until the tip of the hook arrives behind
the needle.
5.Check the gap by pressing a small screw driver against the
needle.
The gap should be as small as possible (0.02-0.1 mm, but
max 0.1 mm.
Adjustment
If the gap is incorrect:
1. Remove the rear enclosure.
2. Adjust the gap by turning the adjusting screw (a) with 2 mm hex. wrench.
Screw (a) is located inside of backside bracket.
• If the gap is too big, turn the screw to the left with viewing from frontward.
• If the needle is hitting the hook, turn the screw to the right with viewing from frontward.
3. Check so the needle front to back descend right into the middle of the needle hole of the needle plate.
Settings
0.02-0.1mm
View from
upward
a
Summary of Contents for VIKING Designer Jade 20
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