Pfaff 90 User Manual

6.
Machine
Works
Heavily
Cause:
Remedy:
Hocyk
raceway
lacks
oil
or
is obstructed
by
Clean
and
oil
hook
raceway.
pieces
of
thread.
Mechanism
clogged
by
inferior
oil.
Use
only
Pfaff
sewing
machine
oil
—
never
salad
oil
or
glycerine.
Bobbin
winder
working
while
sewing.
Stop
bobbin
winder.
Thread
Jamming
The
new
PFAFF
rotary
hook
will
not
normally
jam,
even
if
the
machine
should
be
handled
improperly.
If
thread
should
happen
to
jam
in
the
raceway
of
the
sewing
hook,
jerk
the
balance
wheel
back
and
forth
to
overcome
hard
working
of
the
mechanism.
Thread
jamming
can
be
avoided,
however,
by
following
the
instructions
on
page
3.
27

Pfaff 90 Specifications

General

Brand	Pfaff
Model	90
Category	Sewing Machine
Language	English