SINGER 14U236B - Manual (Page 15)

(4) Correct thread tensions for 2-thread wrapped edge overlock.
Be sure the threads are correctly threaded otherwise
proper tension cannot be obtained.
Set each tension dial to settings shown below and test sew on a sample of your fabric.
• When using right needle for sewing normal width overedge seams, be sure to remove left needle.
Fabric
Tension Dial
Blue Green Orange Yellow
Light weight 4.0 spreader 2.0
Medium weight 5.5 Spreader 2.0
Heavy weight 6.5 Spreader 3.0
• When using left needle for sewing wide
overedge seams, be sure to remove right
needle.
Right needle
thread tension
dial (green)
Left needle
thread tension
dial (blue)
Left looper
thread tension
dial (yellow)
Fabric
Tension Dial
Blue Green Orange Yellow
Light weight 4.5 Spreader 1.0
Medium weight 6.0 Spreader 1.0
Heavy weight 8.5 Spreader 1.0
Adjust thread tensions to suit your fabric making reference to table below. Make adjustments in
increments of no greater than half a number at a time.
^
When looper thread is too tight or needle
When looper thread is too loose ^
thread is too loose
Meedle thread \
Needle thread \
Left looper
thread Left looper
thread
Topside Underside
Topside Underside
Turn looper thread tension dial (yellow)
toward the (—) mark.
Turn looper thread tension dial (yellow)
Or, turn needle thread tension dial (blue toward the (+) mark.
1 or green) toward the (+) mark.
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