HQ Infinity Service Manual
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7. Ensure the needle bar thread guide is straight
towards the front of the machine (where the
user stands to use the front handle bar). If
necessary, rotate the needle bar radially until it
is straight towards the front.
8.
Fully tighten the needle bar driver set screw.
9.
Check that the needle bar height and thread guide positions are still correct.
To check needle bar height using the cylinder height gauge (with hook out of the machine)
•
With the needle bar in the lowest position, the eye of the needle should be aligned with the white line
on the gauge. The bottom of the eye should align with the bottom of the white line. A little of the gauge
black can barely show at the bottom of the eye.
To adjust needle bar height using the cylinder height gauge (with hook out of the machine)
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IMPORTANT
: Before making this adjustment, ensure that the needle is straight. Use a size 16/100
needle.
1.
Correctly install the needle, with the long groove straight out to the front and the needle all the way
to the stop/sight hole in the needle bar clamp.
2. Locate the access hole in the front right cover
for the needle height adjustment.
Needle-bar thread
guide hole faces
directly forward.
