Beisler 1281-5 - Manual (Page 77)

2.6 Upper and lower knife
2.6.1 Changing and adjusting the upper knife
Head EXT 32-16-03/233K
Caution: Risk of injury!
Switch the main switch off.
Change and adjust the upper knife only with the sewing unit switched
off.
Standard
In the lowest position of the upper knife the front edge of the blade
should be 0.5 to 1.0 mm underneath the top edge of the throat plate.
Correction
–
Turn the handwheel until the needles are in their top reverse point
and swivel the sewing foot out.
– Screw off screw 1.
– Remove the knife holder 2 with the knife.
– Loosen screw 3 and remove the knife.
– Insert a new,sharp knife and tighten with screw 3.
– Insert knife holder 2 and tighten slightly with screw 1.
– Turn the handwheel until the knife is in its lowest position.
– Shift the knife in such a way that it slightly abuts on the lower knife
and the front edge of the blade is approx. 0.5 to 1.0 mm
underneath the top edge of the throat plate.
15
3
3 2 1