Needle Thread Tension Adjustment; Thread Take-Up Spring Adjustment - Singer 20U109 Instruction Manual And Parts List

3.15
Needle
Thread
Tension
Adjustment
3.16
Thread
Take-up
Spring
Adjustment
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-
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.
3
tion of the marker '+'), the tension
will increase.
Turn the nut '1' counterclockwise (in
direction of the market '-'), the
tension will decrease.
Figure 22
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
Figure 23
Zigzag Sewing Machine
1
4
2
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