1-42
S100
Revised 10/2005
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1 6 . N E E D L E B A R H E I G H T
1. Perform this adjustment when the machine is in the home position
2.
Remove the throat plate and the needle.
3.
Install the support of the gauge , instead of throat plate.
4.
Install the needle bar height gauge and check the needle bar height, with the needle bar set at the
bottom of the stroke. Standard height of the needle bar is 16.5 mm, (0.65") between the top of the
gauge cutout and the bottom of the needle bar, when the needle bar is at the lowest point.
If the adjustment is incorrect :
5.
Remove the front cover of the head.
6.
Loosen the screws
and move the needle bar up or down as needed. The needle bar can not have
an axial clearance, but it must free rotate.
D - MACHINE ADJUSTMENT
Needle
bar in lower
position
16.5 mm
0.650"
34 mm
1.34"
Bottom of
needle bar
contacts the
top of the
height
gauge
cutout