≈ 5/8"
Check the Needle Bar Height
1.
Remove the left end cover of the sewing
machine as shown (
72
).
2.
Manually lower the needle bar to its
lowest position by turning the Power
Plus™ Flywheel toward you.
3.
We mark the proper height of the needle
bar for your machine by putting a small
scratch on the needle bar (
A
). Check to
see if the mark is level with the top surface
of the upper needle bar guide.
If aligned properly, the needle bar is set
correctly. If not, continue on to adjust
the needle bar height.
4.
Manually operate the machine to move
the needle bar to the bottom of its stroke
(all the way down). Unlock the needle bar
from the drive collar by loosening the set
screw located either in the front or the
side of the pillow block (
B
). If the screw
is in the side of the pillow block, it can be
accessed through a hole in the machine
casting (
C
).
5.
With the needle bar at the bottom of its
stroke, reposition the needle bar so the
mark lines up with the top surface of the
upper needle bar guide. Gently twist the
needle bar up or down to position the
mark making sure the screw that secures
the needle is facing the inside of the
sewing machine arm. Tighten the drive
collar set screw very tightly.
If your Stitch Master is still not
performing properly after adjusting the
needle bar height, proceed to check the
rotational timing.
C
A
B
72
Stitch Master
®
Guidebook: Troubleshooting
60
59
