Additional
Instructions
for Pfaff machines fitted with thread pulier/trimmer •900/..
Since
these
machines
are
equipped
with
Stop
motor
and
electro-magnetic
thread
puller/trimmer,
manual
needle
positioning
and
thread
trimming
are
completely
elimi
nated.
29.
Pedal
operation
When
you
depress
the
heel
of
the
pedal
at the
completion
of
the
sewing
action,
the
eedle is
raised
automatically,
the
needle
thread is
pulled
to the
underside
of the
ma-
teriaJ
and
both
threads
are
trimmed.
All
you
have
to do to
remove
the
work
is raise the
presser
foot
The
thread
ends
remaining
on the
underside
of
the
material
are
long
enough to permit them to be pasted down reliabiy.
The pedal of these machines controls the
following
functions:
1.
When
you
depress
the
tip
of
the
pedal,
the
machine
starts
sewing.
The
harder
you
press, the faster the
machine
will
run.
(If
it is
fitted
with
an
inching
device,
the
pedal
will
also control slow stitch-by-stitch sewing).
2.
When
you
relieve
the
pressure
and
allow
the
pedal
to
return
to
its
neutral
posi
tion, the needle is lowered for turning comers.
3.
When
you
depress
the
heel
of
the
pedal,
the
needle
is
raised
to
its
highest
point,
the needle thread
pulled
to the underside of the material, and both threads are
trimmed.
4. When the pedal is returned to its neutral position again, the needle
remains
at its
highest
point
The
various
pedal
positions
are
shown
below:
Forward
sewing
After
sewing:
needle
down
Neutral
position
Raising
needle
and
trimming
threads
After
thread
trimming:
needle
up
If the machine is fitted
with
two pedals (subcl.
pedals are simultaneously pressed forward.
-911/01),
it will
sew
in
reverse
when
both
31
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