ADJUSTING
THE
TENSION
Tension on thread should be as light as possible
while still sufficient to set stitches correctly in mate-
Regulate
needle
thread tension, os instructed in
Fig. 24.
Make
certain presser foot is
DOWN
during
tension
adjustment.
Tighten lock nut to maintain tension adjustment.
Regulate bobbin thread tension
as
instructed in
Fig.
25.
ADJUSTING
THE
PRESSER
FOOT
PRESSUR
Correct presser foot pressure helps insure proper
feeding of material.
Pressure should be as light as possible while still
sufficient to insure correct feeding of material.
Regulate as instructed in Fig. 26, with presser
foot
down.
On all Mochines,
except
Machine 281-5:
Pressure
regulating thumb screw is fitted with lock nut. Loosen
this lock nut before adjusting pressure.
When
correct pressure is obtained, tighten lock nut
to
maintain
adjustment.
Machine 281-5; To
adjust
pressure, turn regulating
screw (with screwdriver) upward for
less
pressure, or
downward for more pressure, as required.
ADJUSTINGTHE
PRESSURE
OF
THE
ROLLER
PRESSERS
(MACHINES 281-20 AND 281-23)
Pressure
of
the
roller
pressers
on
these
machines
should be
as
light
as
possible,
while
still
sufficient
to
insure
correct
feeding.
Regulate
as
instructed
in
Figs.
27
and
28.
MORE
TENSION
1.
LOOSEN^
LOCK
NUT
2.
TURN
k.
THUMB
NUT
LESS
TENSION
Fig.
24.
Needle
Thread
Tension
TURN
REGULATING
SCREW
s
MORE
TENSION
LESS
TENSION
Fig.
25
Bobbin
Thread
Tension
MORE I
PRESSURE
LESS
PRESSURE
LOOSEN
I
LOCK
NUT
Fig.
26.
Presser
Foot
Pressure
MORE
PRESSURE
LESS
PRESSURE^
I
L--^
Fig. 27. Regulating
Pressure
of
Roller
Presser
on Machine 281-20 M
MORE
PRESSURE
PRESSURE
Fig.
28.
Regulating
Pressure
of
,Roller
Presser
on
Machine
281-23
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