Check/wg performance problems what to do, Checking performance problems ,42, Check/wg performance problems – Kenmore 1430 User Manual
Page 42: What to do
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3. CHECK/WG PERFORMANCE PROBLEMS
WHAT TO DO
PROBLEM
PROBABLE CAUSE
CORRECTION
Incorrect size needle.
Choose correct size needle for thread and fabric.
Improper threading.
Rethread machine.
Loose upper thread tension.
Tighten upper thread tension.
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Pulling fabric.
Do not puli fabric; guige it gently.
Light pressure on presser foot.
Increase pressure on presser foot.
Loose presser foot.
Reset presser foot.
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Unevenly wound bobbin.
Rewind bobbin. •’
Pulling fabric.
Do not pull fabric; guide it gently.
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Incorrect size needle.
Choose correct size needle for thread and fabric.
Needle
Incorrect setting of needle.
Reset needle.
Loose presser foot.
Reset presser foot.
Bunching of
Thread
Upper and lower threads not drawn
back under presser foot.
Draw both threads back under presser foot.
Feed dog down.
Raise feed dog.
Incorrect thread tension (s).
Reset thread tension(s).
Light pressure on presser foot.
Increase pressure on presser foot.
Puckering
Using two different sizes or kinds
of thread.
Upper thread and bobbin thread should be same size and kind.
Bent or blunt needle.
Insert new needle.
Loose presser foot.
Reset presser foot.
Fabric too sheer or too soft.
Use underlay of tissue paper.