4.
STANDARD
ADJUSTMENT
Standard
Adjustment
(1) Height
of
the
needle bar
The upper marker line engraved on the needlebar should be flush with the bottom end of the lower
needle bar bushing when the needle bar is at the lowest point of its stroke.
(Note) Perform this
adjustment
first
before
making
any
other
adjustment.
Needle
bar
Needle
bar
bushing
(lower)
Upper
marker
line
Fig. 3
(2)
Adjustment
of
the
feed cam
Adjustment should be made so
that
the
feed is completed when the needle point
is 7 to 10 mm
(9/32"
~
25/64")
above
the
throat
plate surface.
(It is advisable to make this adjustment
during lateral feed). ^ ~ 10%
(9/32"
~
25/64")
-3-
&>—
E3
Fig. 4
Fig. 5
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