HQ Infinity Service Manual
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To correct the front-to-back needle position
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IMPORTANT
: Before making this adjustment, ensure that the needle is straight. Use a size 16/100
MR (crank) needle.
1.
Use a 5mm hex tool to loosen the two right side
hook frame screws.
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IMPORTANT
: Do not remove the screws.
2.
Loosen the two left hook frame screws, but do not remove them.
3.
Rotate the hand wheel until the needle eye is about even with the needle plate hole.
4. Center the needle in the needle plate hole by moving the hook frame slightly forward or back as
necessary.
5.
Provide resistance against the adjustment by
holding the hook frame while tightening the
right side screws first, until snug.
6.
Tighten the left screws until snug.
7. Fully tighten the right screws, then the left screws again.
8.
Check to make sure the hook frame did not shift during tightening and that the needle is still centered
front to back in the needle plate hole.
Left-to-Right Adjustment
Make the left-to-right needle adjustment only after making the front-to-back adjustment.