Beisler 100-68 - Manual (Page 65)

Pressure of the guide plates
The spring pressure has to be adjusted in such a way that both plates
are always pressed down safely.
If the pressure is too low, the needles may break during the initial
bartack.
If the pressure is too high, the flap or the additional parts are pushed
back at the seam beginning.
If the pressure is too low, the material may be lifted, the stitch
formation may be incorrect or the needles may break.
Adjusting the pressure of the guide plates
–
Loosen the counternut 7.
– Adjust the pressure on the guide plate with the Allen screw 6.
– Tighten the counternut 7.
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3
7 6