SINGER 14U 34B/234B - Manual (Page 18)

3. How to adjust thread tension
1. Standard rolled hem stitching
As adjustments are the same as 1-needle, 3-thread overedge stitching, refer to page 11.
2. Right looper thread wrapped rolled hem stitching (rolled hem variation)
• Correct thread tension
Needle thread
(green dial)
Right looper thread
(orange dial)
Topside
Left looper thread
(yellow dial)
Needle thread
(green dial)
For light and medium weight fabrics which are dif­
ficult to roll, a fine seam can be obtained by this
stitching.
Underside
To correctly adjust the thread tension, set the dials as follows from the standard thread tension dial sett­
ings.
a. Turn the right looper thread tension dial (orange) one half graduation toward the (—) mark.
b. Turn the left looper thread tension dial (yellow) 2 3 graduations toward the (+) mark,
Slight adjustment will give better thread tensions.
When right looper
thread is too loose
mmm'kvi
Needle thread
Right looper
thread
Topside
Underside
Turn right looper thread tension
dial (orange) toward the (+)
mark.
When left looper
thread is too loose
Needle thread
Right looper
thread
Topside
Left looper
thread
Underside
Turn left looper thread tension
dial (yellow) toward the (+)
mark.
Or, turn right looper thread ten­
sion dial (orange) toward the
(—) mark.
When needle thread is
too loose
Topside
Left looper
thread '
Needle thread
Underside
Turn needle thread dial (green)
toward the (+) mark.
4. How to sew
Sewing
• See page 8, “4. Chain off and test sew”.
• For rolled hemming, if a slight tension is applied to the material in the sewing direction, a finer seam
finish can be obtained.
• At the start of sewing, slightly pull the end of the chain off so it will not be entangled in the stitch.
• The minimum overedge stitch width that can be obtained for rolled hemming is approximately
1.5mm since the cutting width cannot be set below 3.5mm.
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