User manual PFAFF 756

[. . . ] Cl) C C) 0 D Cs’ C C, C-) a) 3 D C C a) C) Simple, up-to-date sewing Congratulations!You have bought a high-quality product that provides unique advantages. Your new hobbylock 756 can take any material in its stride and will sew, trim and neaten up for you in one ope ion. Your PFAFF hobbylock features the very latest in design and technology, and it is just as easy to use as this instruction manual is to follow. [. . . ] The left needle stitch width can be in creased from 5. 7mm (7/32inch) to 7. 2mm (9/3 2inch), in The right needle stitch width can be ch) to 5. 0mm creased from 3. 5mm (9/64in (1 3/64inch). — — 114. * HOW TO ADJUST THREAD TENSION The thread tensiod dials on this machine are a oneturn system. As the number increases on the dial the thread tension becomes tighter. 0 = lowest tension 9 = highest tension Be sure the machine is correctly threaded other wise proper thread tension cannot be obtained. s, When making adjustments to balance the tension it is recommended that half 1) Adjustments be made in no greater than a number at a time. 2) Sew a test sample after each adjustment. Current Setting is 1’. Adjustment would be to 1 or 2 for Y turn adjustment. 2 I *1 . 4 * * * 19 S • SUGGESTED TENSION SETTINGS FOR 4 THREAD OVERLOCK MOCK SAFETY STITCH Note: * * Tension Dial Light weight These are suggested tension settings only. Tension settings are effected by 1) Type and thickness of fabric 2) Needle size 3) Size, type and fiber content of thread • CORRECT BALANCE OF THE 4 THREAD OVER LOCK MOCK SAFETY STITCH • HOW TO BALANCE THE 4 THREAD OVER LOCK MOCK SAFETY STITCH * Upper looper thread When the upper looper thread lies on the under side of the fabric Turn the upper looper thread tension dial (orange) to a higher number Or turn lower looper thread tension dial (yel low) to a lower number. — — Right needl’\ needle J’ thread thread L ierXooper \ hread Underside * When the lower looper thread appears on the top of the fabric Turn lower looper thread tension dial (yellow) toward a higher number Or turn the upper looper thread tension dial (orange) toward a lower number. — * When the left needle thread tension is too loose Turn the left needle thread tension dial (blue) toward a higher number. — * When the right needle thread tension is too loose Turn the right needle thread tension dial (green) toward a higher number. — 20 TINGS FOR • SUGGESTED TENSION SET TCH THE 3 THREAD OVER LOCK STI Note: * * lock Stitch Left Needle/Wide 3 Thread Over Tension Dial Fabric Light weight Medium weight Heavy weight 5 Blue 3 Green Orange Yellow 1 2 2 2. 5 settings only. These are suggested tension by Tension settings are effected e and thickness of fabric 1) Typ 2) Needle size content of thread. 3) Size, type and fiber : 1 1. 5 Overlock Stitch Right Needle/Narrow 3 Thread Tension Dial Fabric Lightweight Medium weight Heavyweight : Blue Green 3 4 5 Orange Yellow 1. 5 1, 5 2 2 2 2. 5 THE 3 THREAD • CORRECT BALANCE OF OVER LOCK STITCH I 1 Needle Topside READ • HOW TO BALANCE THE 3 TH OVER LOCK STITCH * 1, I I I * 1 * lies on the under When the upper looper thread side of the fabric ad tension dial Turn the upper looper thre (orange) to a higher number. ad tension dial Or turn the lower looper thre (yellow) to a lower number. ears on the top When the lower looper thread app ad tension dial Turn the lower looper thre ber. (yellow) toward a higher num ad tension dial Or, turn the upper looper thre (orange) to a lower number. — — Needle thread b00 Topside Lower looper thread - L9Werloper Underside — Upper looper thread Needle thread Topside — Underside loose, Turn the When the needle thread is too e or green) to a higher needle tension dial (blu number. 1. Topside Underside 21 15. * HOW TO CHANGE THREADS/TIE ON METHOD To change thread type or color, clip thread near the spool. * Place new thread on stand. Tie new thread and old thread ends together. If Clip thread tails to 2 clipped too short, threads may come untied. * * * Firmly pull both thread to test knot security. * Note tension dial settings. * Turn the tension dials down until the dial stops. 22 * * machine one at a Pull the threads through the time. check for tangles on If threads do not pull easily, er thread stand. thread guides or looping und 1’ * * * ugh the needle, STOP When pulling thread thro the needle. when the knot is in front of it through the needle. Cut the thread, and insert vious settings. Return tension dials to pre 16. * STITCH HOW TO ADJUST THE LENGTH * * be set on the 3mm The stitch length dial should ing conditions. (7/64 inch) setting for most sew 4mm (5/32 inch) when Adjust the stitch length to . sewing heavy weight fabrics 2mm (5/64 inch) when Adjust the stitch length to to obtain excellent sewing light weight fabrics seams without puckering. J 17. 9 MOVABLE HOW TO DISENGAGE UPPER KNIFE IFE IN TO PLACE MOVABLE KN NON WORKING POSITION * I * * onnected from the Be sure the machine is disc power Source. [. . . ] Note: For additional needle information see page No. 14/90 — — — — — No. 14/90 — ii 4 . . ‘ 39 25. * MACHINE MAINTENANCE An overlock requires more maintenance than a conventional machine mainly due to two reasons. 1) A lot of lint is produced due to the cutting action of the knives. [. . . ]