SINGER W1563 - Manual (Page 22)

Fix-lt-Yourself Hints To Avoid Costly Home Calls
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Long experience has established the absolute fact that their users rather
than sewing machine necessitate approximately three-fourths of all service
calls. To know the cause of any trouble usually makes correction of it
relatively simple. .rT ‘ !
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Damaged, defective, or the wrong needle for the job--incorrect threading - -
faulty tension adjustment--thread or lint in the shuttle and its race-way--
cause more difficulties with a sewing machine than all other sources of
trouble combined.
Re-check with this manual before going to the telephone to request ser­
vice. A little time spent with this book, plus some patience might save
you money time after time.
IF YOUR MACHINE IS NOT SEWING PROPERLY LOOK THROUGH
THE FOLLOWING PAGES.