SINGER 719 - Manual (Page 32)

performance checklist
IF MACHINE FAILS TO START
• Are electrical plugs properly comiecled?
• Is power and light switch on?
REMEMBER TO
♦ Use a ball-point {yellow band) needle to
sew nylon tricot and synthetic double­
knits.
• Use high-lift pressor bar setting to place
heavy fabric under presser foot.
♦ Start and finish sewing with take-up
lever in its highest position.
♦ Adjust stitch length, pressure, and
thread tension to suit your fabric.
♦ Test stitch on a fabric sample before
starting a sewing job.
♦ Replace bent or burred needles.
♦ Lower presser foot before setting pres­
sure dial.
• Tighten hand wheel knob after winding
a bobbin.
• Remove feed cover throat plate after
free-motion darning or embroidery.
* Sew at a moderate speed (SLOW speed
setting) when using the straight stretch
stitch.
IF THREAD BREAKS
♦ Is the machine properly threaded?
♦ Is the bobbin case properly threaded?
♦ Is thread unwinding freely from spool?
♦ Is the needle securely tightened in the
needle clamp?
♦ Is the needle straight?
♦ Is the thread suitable for the size of the
needle and free of slubs and knots?
♦ Is the spool pin felt being used under
the thread spool?
♦ Is the needle-thread tension too tight?
♦ Is the bobbin-thread tension too tight?
♦ Is the bobbin-case area free of lint and
loose thread ends?
♦ Are the thread guides and tension discs
also free of lint?
IF FABRIC FAILS TO FEED
♦ Is the presser foot dov^n?
♦ Is pressure dial adjusted properly for
the weight and texture of your fabric?
♦ Is the stitch control dial properly set?
♦ Are you using the feed cover throat plate
instead of the regular throat plate?
If you have any questions, please write to:
Department of Sewing Education
The Singer Company
30 Rockefeller Plaza, New York, N.Y. 10020
30