Pfaff coverlock 4872 User Manual

Prob’em
Cause
Souton
Machine
will
Power supply
interrupted
Close looper
cover
not
operate
although
(see
page
8)
master
switch
is on.
Fabric
not
Waste thread
between
Clean
blades.
neatly trimmed
upper and
lower
blade
Upper
blade
is blunt.
Replace
upper
blade
(see
page
66).
Puckered
seams
Thread
tension
too tight.
Reduce
thread
tension
Incorrect
setting
of
Re-adjust
differential
feed
differential
feed.
(see
pages
38,
39)
Thread
has
caLight
due
Thread
correctly
to incorrect
threading.
(see
pages
14-
23).
Fabric not
fed
Stitches
too short
Increase
stitch length
through
evenly
see
page
35)
Sewing
foot pressure
too
(ow Increase
sewing
foot pressure
for heavy
fabrics.
(see
page
291.
Sewing
foot pressure
too
Reduce
sewing foot
pressure
high
for
lightweight
fabrics.
(see
page
29).
71

Pfaff coverlock 4872 Specifications

General

Brand	Pfaff
Model	coverlock 4872
Category	Sewing Machine
Language	English