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Gemsy GEM1900A - 线张力的调整方法 Adjusting the Thread Tension; 挑线弹簧的调节 Adjusting the Thread Take-Up Spring

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使Operation Instruction
6.线 Adjusting the thread tension
CAUTION
Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the
sewing machine.
线线线
线线
线线
If thread tension controller No. 1 is turned clockwise, the
length of remaining thread on the needle after thread trimming
will be shorter. If it is turned counterclockwise, the length will
be longer.
Shorten the length to an extent that the thread is not slipped
off.
Adjust needle thread tension from the operation panel and
bobbin thread tension with .
1) Select thread tension with key.
2) Set needle thread tension with key or key. There
is a setting range of 0 to 200. When the set value is increased,
the tension becomes higher.
* The tension is set so that l.5 N (spun thread #50) is obtained
at the set value 50 at the time of standard delivery. (When
thread tension No.1 is released)
线
1 线
2 线0-
200
*标501.5N 线
#50 线
7.挑线弹簧的调节 Adjusting the thread take-up spring
线8-10mm线
0.1- 0.3N
1
线
线
2
线
线
线
The standard stroke of thread take-up spring is 8 to 10 mm,
and the pressure at the start is 0.1 to 0.3N.
1) Adjusting the stroke
Loosen setscrew . and turn thread tension ASM .
Turning it clockwise will increase the moving amount and
the thread drawing amount will increase.
2) Adjusting the pressure
To change the pressure of the thread take-up spring, insert
a thin screwdriver into the slot of thread tension post while
screw is tightened, and turn it. Turning it clockwise will
increase the pressure of the thread take-up spring. Turning it
counterclockwise will decrease the pressure.
15

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