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Instructions stating direction or location, such as right, left, front or rear of the machine are given relative to
the operator's position at the machine unless otherwise noted.
operating direction.
FIG. 2
S
T
Y
L
E
2 5
G
A
U
G
E
0 6
G
A
U
G
E
FIG. 3
ADJUSTING INSTRUCTIONS
SETTING THE NEEDLE BAR HEIGHT & ALIGNMENT
Insert the first (left) and fourth needles into the needle head. The
needles for this Class of machine are made with two flats on the front
of the shank. This will enable you to correctly position the needles in
the needle head. Make certain the needle shank is fully inserted and
that the screw is seated firmly on the flat.
To position the needle head square with the throat plate, use the
upper knife or a straight edge to align the needles with the cross
grooves in the throat plate. (See Fig. 2)
Refer to table 1 for the dimension from the fourth (lowest) needle to
the surface of the throat plate and for the number of the needle bar
height gauge.
D
M I
E
N
S
O I
N
F
R
O
M
N
4
T
H
L (
O
W
E
S
) T
N
E
E
D
L
E
T
O
H
T
H
R
O
A
T
P
L
A
T
E
G
S
U
R
F
A
C
E
N
1
/ 7
2 3
( "
3 1
5 .
M
) M
2
1
2 /
( "
2 1
7 .
M
) M
2
TABLE 1
CAUTION: If the needle head has been replaced it must be torqued to 17 in. lbs.
(20cm/kg). After tightening, check for expansion of the needle bar by position-
ing it up into the lower bushing hole. If the bar has expanded it will bind in the
bushing. The bar must be replaced or lapped to reduce the bell shape. Align
and set needle bar height as described above.
E
E
D
L
E
N
E
E
D
L
E
B
A
R
H
E
G I
H
T
E
G I
H
T
G
A
U
G
E
A
U
G
E
S
T
E
P
U
M
B
E
R
M
A
R
K
E
D
2 1
7 2
B
U
5 .
1 3
2 1
7 2
D
S
5 .
0 0
9
The handwheel rotates clockwise in
Position the needle bar at its highest
point of travel.
Loosen needle bar
clamp screw (A, FIG.3) & use the speci-
fied needle bar height gauge (B) to
achieve the desired height dimension
from the fourth (lowest) needle (C) to
the throat plate surface (D).
clamp screw (A) and recheck setting.
Care must be taken not to disturb the
needle head alignment while making
the adjustment. Add the two middle
needles and the retainer.
Tighten
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