I'm wondering if something got lost in the translation. The manual I have for the Pfaff 362 just shows the presser foot removed, but the screw still in the presser bar. Have you tried it that way?
"The fabric should be held taut in the hoops, the presser bar suspended and the presser bar lifter lowered. Drop machine feed, lower needle into fabric at the beginning of your design and draw bobbin thread up through the fabric."