2
39
REASONS CORRECTIONS
IF THE MACHINE STOPS WHILE SEWING
The stop motion knob has not
been tightened suf
fi
ciently.
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 insuf
fi
cient
especially when sewing
heavy material.
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.
IF THE NEEDLE BREAKS
a) The needle is bent.
b) The fabric is pulled from
behind while sewing.
a) Change to new needle.
b) Do not interfere with feeding
action of machine.
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.
Summary of Contents for Sewing Machine
Page 1: ...INSTRUCTION MANUAL Semi Industrial Upholstery Leather Craft Sewing Machine ...
Page 2: ...2 ...
Page 24: ...GROUP 1 CONSTRUCTION EXTERNAL GROUP 24 ...
Page 26: ...GROUP 2 SEWING TRANSMISSION GROUP fi 26 10 11 ...
Page 28: ...GROUP 3 SHUTTLE TRANSMISSION GROUP 28 19 20 20 ...
Page 30: ...GROUP 4 FEED TRANSMISSION GROUP 30 21 ...
Page 32: ...GROUP 5 DRIVING REVERSING MECHANISM GROUP 32 ...
Page 34: ...GROUP 6 ELECTRIC POWER DYNAMIC TRANSMISSION fi 34 ...