Pfaff Cover Style Owner's Manual page 36

Attaching the converter
Turn off the electrical power
Push the tip of the converter into the back side
of the upper overedge looper until it clicks
into place and push the converter onto the
overedge looper bracket.
32
Position the upper overedge looper 18 right
next to the needle by turning the handwheel
towards you.
To remove the converter, gently push the point
of the converter from the eye of the upper
overedge looper. You can now remove the con-
verter by pulling it upwards from the overedge
looper bracket.