Pfaff coverlock 4852 Owner's Manual page 36

Attaching the converter
Switch off the electrical power
The converter 28 must be attached for all
two thread seams (exception: Program 01)
and the two needle three thread assembly
seam. Open the swivel plate and remove the
converter 28 from its storage place.
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.
34 34
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 converter by pulling it upwards
from the overedge looper bracket.