ZOJE ZJ1900DSS, Manual

Page: 81 / 146

COMPUTER-CONTROLLED HIGH SPEED LOCKSTITCH BAR TACKING MACHINE
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6.
Adjusting the thread tension
7.
Adjusting the thread take-up spring
If thread tension controller No.1 is turn
①
clockwise, the length of remaining thread on
the needle after thread trimming will be shorter.
If it turned counterclockwise, the length will be
longer.
Shorten the length to an extent that the thread is
not slipped off.
with
②
to adjust the upper thread tension,
The standard stroke of thread take-up spring
is 8 to 10 mm, and the pressure at the start is
①
0.1 to 0.3N.
.Adjusting the stroke
⑴
Loosen setscrew
② ，
and turn thread tension
asm. .T
③
urning it clockwise will increase the
moving amount and the thread drawing amount
will increase.
.Adjusting the pressure
⑵
To change the pressure of the thread take-up
spring, insert a thin screwdriver into the slot of
thread tension post while screw is
④ ②
tightened, and turn it. Turning it clockwise will
increase the pressure of the thread take-up
spring. Turning it counterclockwise will
decrease the pressure.
with
③
to adjust the bottom line tension.