Pfaff hobbylock 786. View the Pfaff hobbylock 786 manual for free or ask your question to other Pfaff hobbylock 786 owners. Product, Sewing Machine.Controls of the sewing machine Threading guide wires 18 and the thread guides behind Adjusting the stitch length on hobbylock 784 and 786. Instruction Manual, Pfaff Hobbylock 786, 34 Pages. View Manual *This link will take you to the manufacturers website