Operation Manual

7.
Cause
and
Remedy
of
Faults
Remember:
Many
machine
troubles
are
caused
by
non-observance
of these
instructions.
In
many
cases
faulty
working
of
your
ma
dune
can
be remedied
merely
by
c!eaning
and
ciIng.
The
niaclaine
works
Iieat’ilv:
1.
Thread
ends
are caught
up
in
the
hook
race
—
oil
the hook,
turn
the hand-
wheel
and
the
hook
back
and forth
as
described
on
page
63.
2.
The motor
belt
is
too
tight —
adjust
the
regulating
wheel
(see
page
66).
3.
Certain
parts
have
run dry
—
oil
them.
68
The machine
is
noisy:
1.
Thread
ends
are
lodged
in
the
hook
race
—
oil
the hook,
turn
the
hand-
wheel
and
the hook
back
and forth
as
described
on
page
63.
2.
The
motor
belt is
too slack
—
adjust
the
regulating
wheel
(see
page 66).
3.
Certain
parts
have run
dry
—
oil
them.
•
r.
4.
The machine
is
dirty —
clean
it.
5.
Unsuitable
oil
has been
used
—
clean
the machine
with
paraffin
and oil
it
with
approved
oil.
ij