Pfaff coverlock 4772

The
needle
thread
is
too
loose.
Increase
the
tension
of
the
respective
need
le
thread.
The
lower
looper
thread
(yellow)
is
visible
on
the
face
side
of
the
fabric.
Set
the
yellow
thread
tension
to
a
higher
va
lue
and/or
the
pink
thread
tension
to
a
lower
value.
47
The
upper
looper
thread
(pink)
is
only
partly
looped
around
the
edge
of
the
fabric.
Set
the
pink
thread
tension
to
a
lower
value
and/or
the
yellow
thread
tension
to
a
higher
value.