Pfaff coverlock 4852 Owner's Manual page 26

The thread must be guided through the
lower slot of thread guide 4.
24 24
Threading the needles
Thread in a sequence of 1 to 8.
Note:
To make this task easier, use the tweezers
which can be found behind the swivel plate.
Pull approximately 4" (10 cm) of thread
through the looper and place it to the left
under the presser foot.
Note:
For the cover stitch the thread must also be
guided through the lower thread guide 7.