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Revised 09/2004
S-101
1-11
ADJUSTING THE NUMBER OF STITCHES PER INCH IN A BUTTONHOLE
Loosen nut
n
and move lever assembly
o
in slot
p
,
in either direction to suit.
Movement in direction of rear of machine will
decrease the number of stitches. Movement toward
the front will increase the number.
Density of stitches or number
of stitches per inch
INCREASING OR DECREASING THE NUMBER OF STITCHES IN THE EYE
INDEPENDENTLY OF THE SIDES
Loosen screw
q
and adjust the wedge
r
to suit
movement to the rear of machine will decrease
the number of stitches in eye. Movement to the
front will increase them
Density of stitches or
number of stitches sewed
in while needle bar is
circling the eye
If this type of wedge is used adjust in opposite
direction to that shown in Figure 2.
With either split or solid tension disc -
adjustment is made with nut
t
Figure 3 -
screwing it inward will tighten the tension
- outward will loosen it.
T E N S I O N
To tighten the under tension use nut
s
- inward to
tighten - outward to loosen
Figure 1
Figure 2
Figure 5
Tension for upper
system on head
Tension for lower
system on race
Note:
To obtain a desired result it may be necessary to adjust each tension separately or jointly - as a
rule the upper tension is much tighten than the lower
Figure 3
Figure 4
ADJUSTMENTS THAT DETERMINE THE CHARACTER OF THE BUTTONHOLE