ADJUSTING
THE LIFT
OF
THE ALTERNATING PRESSER FEET
The thickness of
the
material sewn should control the height of
the
lift of
the
alternating presser feet.
It should normally be just high enough for clearance of the material. With
normal adjustment both feet lift to equal height.
To adjust the lift, loosen the wing nut (1), move up the nut to raise the
lift, and push down this nut to lower the lift.
When altering the lift of the lifting presser foot (4,
Fig.
7) unequally against
that of
the
vibrating presser foot (5, Fig. 7) or vice versa, see
the
instructions
"ADJUSTING
THE HEIGHT OF THE
PRESSER
FEET".
Fig. 17
HOW
TO
RE-SET
THE
SAFETY
CLUTCH
MECHANISM
The sewing hook and its mechanism are protected by a safety clutch. In
case the hook gets jammed with thread or other foreign matter, the safety
device disengages
the
driving belt, stops sewing, and thus prevents
the
machine
from getting
damaged.
If it
should
become
necessary to re-engage
the
safety clutch, depress
the
button
(2, Fig.
2) in
the
bed
plate, at
the
same time, turn
the
handwheel
away
from
you
until
the
lock
ing mechanism re-engages
the
driving
shaft
beneath
the
bed
of
the
machine,
open
the
slide plate
above
the
hook
and
rock
hand-
wheel back
and
forth to remove any foreign
matter
which
may have
lodged
in
the
hook.
Do not use any sharp-edged tools, lest
Fia.
18
the
hook
be damaged.
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12
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