Sears KENMORE 385.128418 User Manual
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SECTiOl^-^ PERFORMANCE PROBLEMS CHART
What to Do When (Continued}
PROBLEM
PROBABLE CAUSE
CORRECTION
Skipping Stitches
Incorrect size needle.
Certain kmts and synthetics.
Bent or blunt needle,
incorrect setting of needle.
Tight upper thread tension.
Choose correct size needle for thread and fabric.
Use "Q NEEDLE’,'.,,
insert new needle.
Reset needle.
Loosen upper thread tension.
Breaking Upper Thread
Starting to stitch too fast,
improper threading.
Tight upper thread tension.
Incorrect size needle.
Sharp eye in needle.
Nicks or burrs on shuttle.
Nicks or burrs at hole of needle plate.
Start to stitch at a medium speed,
Rethrsad machine.
Loosen upper thread tension.
Choose correct size needle for thread and fabric.
Insert new needle.
Replace shuttle, or polish off burrs completely.
Replace needle plate, or polish off burrs completely.
Breaking Bobbin Thread
Improper bobbin case threading.
Lint in bobbin case or shuttle.
Check bobbin case threading.
Clean bobbin case and shuttle.
Fabric not Movirjg
Darning plate in place.
Stitch Length set at 0,
Thread knotted under fabric.
Remove darning plate.
Adjust Stitch Length Control.
Place both threads back under presser foot before beginning
to stitch.
Machine Jamming Knocking Noise
Thread caught in shuttle.
Lint in bobbin case or shuttle.
Disassemble and clean shuttle.
Clean bobbin case and shuttle.
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