Singer Sewing Machine Instruction Manual page 39

REASONS
IF THE MACHINE STOPS WHILE SEWING
IF THE MACHINE SKIPS STITCHES
a) The needle is inserted
incorrectly.
b) The needle is bent or
blunt.
c) The needle is threaded
improperly.
d) Wrong size of needle is
used.
e) Thread is too heavy for
needle.
f) The pressure of presser
foot is insuffi cient
especially when sewing
heavy material.
IF THE NEEDLE BREAKS
a) The needle is bent.
b) The fabric is pulled from
behind while sewing.
NOTE:
To avoid breaking of needle, fi rmly tighten screw of needle clamp.
Do not sew heavy seams or very thick fabric with fi ne needle.
Heavy needle and thread should be used on heavy fabric.
Refer to the list of needle and thread sizes.
CORRECTIONS
The stop motion knob has not
been tightened suffi ciently.
a) Correct the insertion of needle.
b) Change needle.
c) It must be threaded from left to
right.
d) Change size of needle.
e) Change needle to a heavier
one.
f) Check pressure.
a) Change to new needle.
b) Do not interfere with feeding
action of machine.
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