18
Zigzag Sewing Machine
|
Instruction Manual and Parts List
3.15
Needle
Thread
Tension
Adjustment
Figure 22
Adjusting the tension of needle
thread using tension adjusting nut
‘
1
’ according to different sewing
condition. (Figure 22)
Turn the nut ‘
1
’ clockwise (in direc-
tion of the marker ‘
+
’), the tension
will increase.
Turn the nut ‘
1
’ counterclockwise (in
direction of the market ‘
-
‘), the
tension will decrease.
3.16
Thread
Take-up
Spring
Adjustment
Figure 23
The adjusting of the pressure of the
thread take-up spring ‘4’ (Figure
23).
Turn the thread tension post ‘
1
’
clockwise (in direction of the marker
‘
+
’), the pressure will be increased.
Turn the thread tension post ‘
1
’
counterclockwise (in direction of
the marker ‘
-
’), the pressure will be
decreased.
The adjusting of the stroke of the
thread take-up spring ‘4’. (Figure 23)
Loosen setting screw ‘
2
’.
Turn the thread tension ‘
3
’ clock-
wise (in direction of the marker ‘
+
’),
the stroke of the thread take-up
spring will be increased.
Turn the thread tension ‘
3
’ counter-
clockwise (in direction of the marker
‘
-
’), the stroke of the thread take-up
spring will be decreased.
1
1
2
3
4
