Husqvarna Viking Automatic 21 - Adjusting the machine for straight stitching; Timing the needle swing

1
.
Adjusting
the
machine
for
straight
stitching
staff
(
1
Fig
.
1
)
at
0
,
and
turn
the
Set
the
needle
swing
control
on
starting
-
position
control
to
the
right
.
Adjust
lever
(
2
Fig
.
1
)
to
obtain
minimum
play
between the
high
point
of
a
cam
and
the
follower
(
3
Fig
.
1
)
.
This
setting
should be made
with
the
stitch
selector
at
5
.
Loosen
screw
(
5
Fig
.
1
)
with
a
screwdriver
(
4
Fig
.
1
)
and
tighten
it
after
making
the
setting
.
Fig
.
1
.
2
.
Timing
the
needle
swing
Set
the
needle
swing
control
for
maximum
stitch
width
.
Turn
the
worm
gear
(
1
Fig
.
2
)
on
the
camshaft
,
pertaining
to
the
zig
-
zag
drive
,
until
the
left
-
hand
and
right
-
hand
movements
of
the
needle
-
bar
frame
(
3
Fig
.
3
)
terminate
when the
tip
of
the
needle
is
more
than
V
32
in
.
(
7
mm
)
above
the
throat
plate
on
the
downward stroke
.
Loosen
screws
(
2
Fig
.
2
)
and
tighten
them
again
after
making
the
setting
.
1