Sewing machine no. 15 – SINGER 15-30 Treadle Sewing Machine User Manual
Page 15
Sewing Machine No. 15
15
HINTS
The Belt. See that the belt is not too tight; it should always be tight enough to not slip. If too
loose, remove the hook at one end, shorten the belt and rejoin.
Machine Working Heavily. If the machine runs hard after standing idle for some time, use a
little kerosene in the oiling places. run the machine rapidly, then wipe clean and oil.
To Avoid Breaking Needles. See that the presser foot or attachments are securely fastened
by the thumb screw. Do not sew heavy seams or very thick goods with too fine a needle. A
large needle and thread to correspond should be used on heavy work.
See that the needle is not bent and avoid pulling the material when stitching.
Breaking of Needle Thread. If the needle thread breaks it may be caused by:
• Improper threading.
• Tension being too tight.
• The thread being too coarse for size of needle.
• The needle being bent, having a blunt point, or being set incorrectly
Breaking of Bobbin Thread. If the bobbin thread breaks it may be caused by:
• Improper threading of bobbin case.
• Tension being too tight.
Skipping of Stitches. The needle may not be accurately set into the needle bar or the
needle may be blunt or bent. The needle may be too small for the thread in use.