Beisler 100-68 - Manual (Page 69)

Contact pressure
–
Loosen the two screws 5.
– Place the knife holder 6 with the centre knife 2 to the left against
the stationary knife in the throat plate.
The centre knife must abut with slight pressure.
– Tighten the screws 5.
– Make a cutting test.
Attention !
Disturbances of the machine cycle may occur.
If the centre knife abuts too close on the counterknife edge, the spring
cannot pull it to the initial position any more after the sewing process.
Furthermore, the knife will quickly get blunt which may result in
inaccurate cutting, different seam lengths, inexact corner incision and
fullness within the seam.
6.2 Needle protection
The needle protection 7 is fixed on the holder of the needle thread
catcher.
It should be located 1 mm deeper than the point of the centre knife 2
and
1.0 - 1.5 mm from its back.
–
Loosen the screws 8.
– Adjust the needle protection 7 in such a way that it is located 1 mm
deeper than the point of the centre knife und 1.0 - 1.5 mm from its
back.
– Tighten the screws 8.
31
3
6 2 5 8 7 2