2.10 Thread puller for the needle threads
Caution: Danger of injury !
Switchthemainswitchoff.
Adjust the thread puller only with the sewing unit switched off.
Standard checking
The thread puller 1 pulls a certain needle thread quantity out of the
opened thread tension.
The needle thread quantity pulled out must be as large as to comply
with the following conditions:
·
At the sewing start the needles moving downwards must not pull
the needle threads out of the needle thread clamp.
·
At the same time a tight stitch formation has to be guaranteed at
the sewing start and the thread puller must not touch the folding
station.
Correction
–
Loosen counternut 3.
–
Adjust the stop width of the thread puller 1 by turning the stop
screw 2.
–
Tighten counternut 3.
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