STITCHING
OVER
TWICE
ON
THE
SAME
BUTTONHOLE
When it
is
desired
to
stitch
over
a
button
hole twice for added strength (Mochine 271K4),
or for any other reason, pull
forward
on knife
bar disengaging lever screw stud, Fig. 20, dur
ing first buttonhole cycle and hold this position
until cycle is completed. Release knife bar dis
engaging lever screw stud and start machine for
second
cycle.
LENGTH
OF
BUTTONHOLE
The gauge,
shown
in Fig.
21,
is
marked
with numbers corresponding to different lengths
of
buttonholes
that
con
be
made
on
these
ma
chines.
To regulate length of buttonhole, remove
oil guard and loosen nut on regulator lever as
instructed in Fig. 21.
Place
gauge in slideway
so that number
on
gauge corresponding to de
sired length of buttonhole
is
opposite the line
cut in the slideway, as
shown.
Move
lever
un
til
sleeve
under nut
rests
against downward
projection of gauge. Tighten nut. Replace oil
guard.
WIDTH
OF
BIGHT
The
width
of
bight
is
determined
by
position
of the stud in the slotted
link,
shown
in
Fig.
22.
To change the
width
of bight,
open
the
arm
top
cover
and loosen the nut,
shown
in Fig.
22.
Move
stud
toward
left to increase bight ortoward
right to decrease bight.
When
desired
width
of
bight
is
obtained,
tighten
nut
and
close
arm
top
cover.
10
SCREW
STUD
KNIFE
BAR
DISENGAGING
LEVER
Fig.
20. Knife Bar
Disengaging
Lever
Screw
Stud
1.
REMOVE
OIL
GUARD
2.
PLACE
GAUGE'5
IN
SLIDEWAY
4.
PLACE
DESIRED
LENGTH
OF
BUTTONHOLE
ON
THIS
LINE
^
'3.
LOOSEN
TO
ADJUST
5.
MOVE
LEVER
UNTIL
SLEEVE
RESTS
AGAINST
GAUGE
6.
TIGHTEN
NUT
AND
REPLACE
OIL
GUARD
Fig.
21.
Regulating
Length
of
Buttonhole
STUD
LOOSEN
TO
ADJUST
MORE
BIGHT
'T
LESS
BIGHT
I'M
—
^ ' 1
Fig. 22. Reguloting
Width
of Bight
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