Operation Manual
36
Machine
runs
heavily
and
is
noisy
Cause:
Remedy:
1
Dust
and
pieces
of
thread
have
Clean
shuttle
and
shuttle
race
as
accumulated
in
the
shuttle
race,
instructed
on
page
30.
2.
Machine
has
not
been
serviced
Read
instructions
on
page
29.
for
a
longer
time.
3.
Machine
clogged
by
nferior
oil.
Clean
the
machine
thoroughly
with
cleaning
fluid
(kerosene)
and
oil
it
with
highquality
sewing
machine
oil.