Pfaff 28 User Manual

19
Probable
Causes
of Sewing
Troubles
Skipping
of
Stitches:
1.
Neede
inserted
incorrectly,
grooves
facing
the wrong
way.
2.
Other
than
proper
needle system
used.
3.
Needle
bent.
4.
Needle
threaded
incorrectly.
5.
Needle inadequate
for
the thread
used.
Breaking
of
Thread:
1. For any
of the
causes
mentioned
above.
2.
Tensions
too
tight.
3.
lnferior.quolity
or
knotty thread
used.
4. Shuttle
race
insufficiently
oiled.
5.
Thread
jamming in
shuttle race.
6. Edges
of needle
hole damaged
by
the needle.
Binding
of Machine:
1. Driving belt
too long.
2.
Driving
belt shortened
too much.
3.
Thread
jamming
in shuttle
race.
4. Mechanism
clogged.
5.
Machine not
oiled after
having
been cleaned
with
kerosene.
Needle
Breakage:
1.
Needle bent.
2.
Needle
too thin
or
thread
too thick.
3. Needle
thread tension
too
tight.
4.
Pushing or
pulling of
the work during
the
sewing.
Uneven
Stitches:
1. Tensions
improperly
regulated.
2. Thread
used
too thick,
knotty
or
stiff.
3. Bobbin
thread
improperly
wound.
4. Shuttle
race
insufficiently
oiled.
5.
Odd
thread
accumulated
between
tension
discs.

Pfaff 28 Specifications

General

Brand	Pfaff
Model	28
Category	Sewing Machine
Language	English