Pfaff coverlock 4852 Owner's Manual page 22

20 20
Threading the two thread chainstitch looper
and cover stitch looper (violet) for the
chainstitch
Turn the handwheel towards you until the
two thread chainstitch looper 20 is on the
extreme right.
Thread in a sequence of 1 to 11.
Note:
To make this task easier, use the tweezers
which can be found behind the swivel plate.