Beisler 100-54 - Manual (Page 69)

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2.8 Guiding plate vertical stop
The distance (A) between the upper side of the sole and
the lower side of the guiding plate (1) must not exceed
0.5 mm. This distance must be increased only if parti-
cularly thick material is to be used.
To change the height, loosen the retaining nuts of the
two setscrews (2), rotate the screws clockwise or counter-
clockwise, then tighten the retaining nuts.
2.9 Guiding plate pressure
Adjust the spring pressure so that both plates are pressed
down safely at all times. In case of insufficient pressure,
the needle may break during the initial bartack. In case
of excessive pressure, the plate will be pushed back at the
beginning of the seam.
Rotate the two adjusting screws (3) until adequate pressure is
applied to the guiding plates.
2.7 Lateral distance between guiding
plate and needle
The distance (A) to the needle should be minimal.
However, do not allow the guiding plate (1) to contact
the needle (2) or the needle head as otherwise
excessive noise or thread breakage may occur.
Set the distance using an appropriate bending tool.