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Instruction Manual and Parts List
3.19
Thread
Trimming
Adjustment
Adjustment of the thread trimming
cam position. (Figure 24)
Turn the hand wheel until the needle
bar goes from the bottom up to 5.0
mm.
The thread trimming solenoid ‘4’ is
pressed until the thread trimming
shaft with the roller ‘3’ touches to the
concave of the thread trimming cam
‘1’.
The positioning screw ‘2' is lightly
tightened.
Then releases the thread trimming
solenoid ‘4’ and loosen the screw ‘2’
to adjusting the cam ‘1' position until
the clearance between the cam ‘1’
and thread trimming driving shaft ‘3’
is 0.5 mm.
After it is adjusted, securely tighten
the screw ‘2’.
(Recheck)
When the trimming shaft with the
roller ‘3’ engaged to the concave
of the thread trimming cam ‘1', it is
make sure that the clearance
between the both should be 0.6-
0.8 mm. (Figure 25)
Adjusting the position of the
counter and the moving knives.
(Figure 26)
When the thread trimming shaft
with the roller ‘3’ is at the highest
position in the thread trimming
cam‘1', the front tip of the counter
knife ‘8’ and the edge of the
moving knife ‘7’ should be
engaged by 0.2-0.5 mm.
If it is need to adjust, move the
knife shaft crank rod ‘6’ before
the
thread trimming
driving shaft with
the roller ‘3’ exceeded the trim-
ming cam ‘1’.
Loosen screw ‘5', and move the
knife shaft crank rod until in front
tip of counter knife ‘8’ and the
edge of moving knife ‘7’ engages
by 0.2-0.5mm.
Then securely tighten the screw
‘5’.
Figure 25
Figure 26
Figure 24
Rotate direction
1
2
7
7
0.2-0.5 mm
8
7
8
0.6-0.8 mm
0.5 mm
1
3
3
4
6
5
8
Integrated Energy Saving Direct Drive Motor Lockstitch Sewing Machine
(For 141G-xxCFx
Only)
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