Upper And Lower Knife; Changing And Adjusting The Upper Knife - Beisler 1220/5 Operating Instructions Manual

2.6 Upper and lower knife

2.6.1

Changing and adjusting the upper knife

Head EX 5205-22/233-6KS
3
16
2 1
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.
Head S52 134B only
–
Let the stops 4 and 5 abut on the knife in this position and tighten
screws 1 and 3.
–
Turn the handwheel until the knife is in its highest position.
–
Loosen screw 6.
–
Shift the lower knife to the left and let it spring against the upper
knife.
–
Tighten screw 6.
Head S52 134B
6
7
2
1
3
4
5