Pfaff 521-340 Sewing Machine Service Manual

Description Pfaff 521-340 Sewing Machine Service Manual. Includes: Timing the sideways motion of the needle bar. Zero position of the needle. Checking the operating current. Checking the mains voltage. Exchanging the motor. Electrical safety test. Insulation resistance. Tighten nuts without twisting screws. Remove the arm cover. Set needle thread tension. Bobbin thread tension adjustment. Zero feed regulator. Replace face cover. Presser bar height. Much more! Pfaff models: 340 521 541 721 741 46 page service manual. PDF download.   Please Note*** This is a Service Manual. If you need the instruction manual, please visit our shop.   Pfaff 521-340 Sewing Machine Service Manual. Additional Pfaff service manuals are available in our shop here.