Pfaff 75 Owner's Manual - Page 29

disengaging

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6. Machine Works Heavily Cause: Hook raceway lacks oil or is obstructed by pieces of thread. Mechanism clogged by inferior oil. Bobbin winder working while sewing. Remedy: Clean and oil hook raceway. Use only Pfaff sewing machine oil Stop bobbin winder. never salad oil or glycerine. 7. Machine Fails to Sew Zigzag or Ornamental Stitch Desired Cause: Remedy: Wrong fashion disc inserted or none at all. Jerk stitch width lever to "O and insert proper fashion disc. For straight stitching, too, a fashion disc should be inserted in the machine (see pp. 6, 7 and 9). 8. Motor Idles Cause: Motor disengaging lever raised. Remedy: Flick lever down (see page 5). Thread Jamming The Pfaff to jam in rotary hook will not normally the hook raceway, the power jam, even if of the motor the machine should be handled improperly. If thread in most instances will be sufficient to overcome hard should happen working of the mechanism. If this action should not free the jammed thread, put a drop of oil into the hook raceway, jerk the balance wheel back, then rock it back and forth. 29

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6.
Machine
Works
Heavily
Cause:
Remedy:
Hook
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.
7.
Machine
Fails
to
Sew
Zigzag
or
Ornamental
Stitch
Desired
Cause:
Remedy:
Wrong
fashion
disc
inserted
or
none
at
all.
Jerk
stitch
width
lever
to
“O
and
insert
proper
fashion
disc.
For
straight
stitching,
too,
a
fashion
disc
should
be
inserted
in
the
machine
(see
pp.
6,
7
and
9).
8.
Motor
Idles
Cause:
Remedy:
Motor
disengaging
lever
raised.
Flick
lever
down
(see
page
5).
Thread
Jamming
The
Pfaff
rotary
hook
will
not
normally
jam,
even
if
the
machine
should
be
handled
improperly.
If
thread
should
happen
to
jam
in
the
hook
raceway,
the
power
of
the
motor
in
most
instances
will
be
sufficient
to
overcome
hard
working
of
the
mechanism.
If
this
action
should
not
free
the
jammed
thread,
put
a
drop
of
oil
into
the
hook
raceway,
jerk
the
balance
wheel
back,
then
rock
it
back
and
forth.
29