Pfaff hobbymatic 933 - Machine Feeds Irregularly or Not at All; Machine Runs with Difficulty; Fundamental Rules

Cause:
Remedy:
5.
Machine
feeds
irregularly
or
not
at
all
Lint
has
accumulated
between
tooth
Remove
needle
plate
and clean
out
lint.
rows
of
feed
dog.
Feed
dog
lowered.
(Feed-lowering
Push
feed-lowering
control
to
the
left.
control
is
at
right.)
6.
Machine
runs
with
difficulty
Thread
ends
in
hook
raceway.
Remove
thread
ends
and
put a
drop
of
oil into
hook
raceway.
7.
Fundamental
rules
Before
exchanging
either
sewing
foot
or
needle,
switch
oft
master
switch
1
25.
Never
run a
threaded
machine
unless
there
is
a
piece
of
fabric
under
the
sewing
foot.
If
you
have
to
leave
the
machine,
even
for a
short
while,
be
sure
to
switch
off
the
master
switch.
This
is
particularly
important
when
children
are
around.