Flange Machine
Part Number 6Z8303
General Maintenance
69
Replacing the Top Knife
To replace the top knife:
1
Loosen the bottom knife holder screw.
2
Push the bottom knife holder as far left as possible, and lightly tighten the
screw.
3
Remove the top knife screw.
4
While wearing cut-resistant gloves, grasp the top knife and remove, pulling
in a downward motion.
5
Rotate the handwheel until the top knife clamp is in its lowest position.
6
Insert the new top knife, but do not tighten the top knife screw completely.
7
Set the top knife blade so that its cutting edge overlaps the bottom knife by
0.5 mm to 1.0 mm.
8
After the knife position is correct, tighten the top knife screw securely.
9
Loosen the bottom knife holder screw. The bottom knife holder is spring-
loaded and will automatically return to the correct position.
10
Tighten the bottom knife holder screw securely.
Replacing the Bottom Knife
To replace the bottom knife:
1
Loosen the bottom knife holder screw.
2
Push the bottom knife holder as far left as possible, and lightly tighten the
screw.
3
Loosen the clamp stud nut.
4
While wearing cut-resistant gloves, grasp the bottom knife and remove,
pulling in a downward motion.
5
Insert the new bottom knife into the groove of the bottom knife clamp stud.
6
Set the blade so that the cutting edge is level with the top of the needle plate.
7
When the knife is in place, tighten the clamp stud nut securely.
8
Loosen the bottom knife holder screw. The bottom knife holder is spring-
loaded and will automatically return to the correct position.
9
Tighten the bottom knife holder screw securely.
IMPORTANT!
Fine-tune the knives after any replacement procedures so
that they can function properly. Always perform a cutting
test after replacing the knives. This procedure is detailed
under “Checking the Setting of the Knives” on page 68.
