Beisler 100-54 - Manual (Page 75)

3-19
3.6.5 Height of center knife
The front edge of the center knife (1) must stand (in
switched on state and deepest position) 1 mm deeper
than the top side of the stitch plate.
To adjust it, loosen both fixing screws (2) and move the
center knife. Tighten both screws again.
3.6.6 Shear angle of the center knife
The center knife should stand slightly folded against the
counter knife in the stitch plate.
Loosen the allen key (3) and turn the holding hook on
the center knife pole until the desired position is met.
Tighten the allen key again.
3.6.7 Lateral adjustment
The center knife (1) must be adjusted laterally that the
pressure is minimized.
Loosen the fixing screws (2) and adjust the center knife
exactly. Tighten both screws again.
ATTENTION
Possible faults in machine sequence! If the center
knife has too strong contact to the counter knife, it
cannot be withdrawn after sewing into home position
by the spring. Additionally the knife gets blunt very fast
which causes bad cutting, different seam lengths,
improper mitre cutting and additional width in the
seam.
3.6.8 Needle protection
The needle protection (2) is mounted at the holder of the
upper threat catcher. It should stand 1 mm deeper than
the top of the center knife (1) and 1 - 1.5 mm away from
the back of the knife.
To adjust it loosen the fixing screws (3) of the needle
protection and move it. Tighten the fixing screws again.