Sears 385.12912 Sewing Machine User Manual


 
Adjust the Needle Thread Tension for Zigzag
Stitch
For an ideal zigzag stitch, the bobbin thread does not show
on the right side (top side) of the fabric and needle thread shows
slightly on the wrong side (bottom side),
See the illustrations for correct appearance
To match this appearance, adjust the needle tension_
"Correct tension
(D Right side (Top side) of fabric
(_) Wrong side (Bottom side) of fabric
Minimize amount of needle thread visible on the wrong
side (bottom side) of fabric without causing excessive
puckering or causing bobbin thread to show on the right
side (top side) of fabric
Results vary with fabric, thread and sewing condition,
° Tension is too tight
(_) Right side (Top side) of fabric
® Wrong side (Bottom side) of fabric
Corner of each zigzag pulls together on the right
side of fabric
° Tension is too loose
0 Right side (Top side) of fabric
® Wrong side (Bottom side) of fabric
The needle thread loo_)sthrough wrong side (bottom side)
of fabric and is pulled almost together
®
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