Handy reference chart, O* •n – SINGER 14SH644 User Manual
Page 7
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Also, for overedging heavyweight fabrics, the seam width can be increased still more by turning the overedge
seam width adjustment knob. (See page 21)
Overedge width
Needle used
Needle thread
tension dial
3.5mm
Overedge right needle
Green
2. HANDY REFERENCE CHART
5.7mm
Overedge left needle
Blue
o*
•n
kll J
Stitch Type
Three - Thread
Overlook
(504)
Three - Thread
Flatlock
(505)
Three - Thread
Wrapped Edge
Overlook
Four - Thread Ultra-
Stretch Mock
Safety Stitch
(514)
Needle
Positions
3.5mm
5.7mm
3.5mm
5.7mm
3.5mm
5.7mm
0
Tension Dial; Numbers shown are average
settings on medium weight fabric with
standard #80 polyester spun thread
Blue
2.5
0.5
3.0
2.5
Green Orange
3.0
0.5
3.0
2.0
2.5
2.5
5.5
5.0
0.5
0.5
2.5
Yellow
2.0
2.0
5.5
6.0
7.0
7.0
2.0
Page
29
30
31
32
The thread tension becomes tighter as the dials are turned to higher numbers. The tension settings shown on
this page as well as throughout the operator’s manual are suggested guides. Adjust thread tensions to suit the
fabric and size of thread used. For best results make tension adjustments in small increments of no greater
than half a number at a time.