Singer 14SH644 User Manual

31
3) 3-thread Wrapped Edge Overlock
Note:
*
These are suggested tension settings only.
*
Tension settings are effected by;
1) Type and thickness of fabric
2) Needle size
3) Size, type and fiber content of thread.
• Set Each Tension Dial to Settings Shown at Right
and Test Sew on a Sample of Your Fabric
Correct Balance
• When the upper looper thread tension is too loose;
- Turn the upper looper thread tension dial
(orange) toward a higher number
• When the lower looper thread tension is too loose;
- Turn the lower looper thread tension dial (yellow)
toward a higher number.
- Or, turn the upper looper thread tension dial
(orange) toward a lower number.
• When the needle thread tension is too loose;
- Turn the needle thread tension dial (blue or
green) toward a higher number.
- Or, turn the upper looper thread tension dial
(orange) toward a lower number.
How to Balance
Upper looper
thread
Needle thread
Needle thread
Lower looper
thread
Underside
Fabric Tension Dial
Blue Green Orange Yellow
Light weight
4.0
0 8.0
Medium weight
5.0
0 8.5
Heavy weight
5.0
0 8.5
Fabric Tension Dial
Blue Green Orange Yellow
Light weight
2.5 1.0 7.0
Medium weight
3.0 1.0 7.0
Heavy weight
3.5 1.0 7.0
NEEDLE POSITION
SEAM WIDTH FINGER KNOB S
STITCH LENGTH 2 ~ 4
Upper looper
thread
Upper looper
thread
Upper looper
thread
Needle therad
Needle therad
Needle therad
Needle therad
Needle therad
Needle therad
Topside
Topside
Topside
Topside
Lower looper
thread
Lower looper
thread
Lower looper
thread
Underside
Underside
Underside

Singer 14SH644 Specifications

General

Type	Automatic sewing machine
Free arm	Yes
Sewing speed	1300
Stitch width	Variable
Product color	White
Automatic buttonhole	-
Sewing machine functions	Overlock
Power supply type	Electromechanical

Weight and Dimensions

Width	320 mm
Height	380 mm
Weight	7500 g