Leica Biosystems RM2235 - Manual (Page 43)

41 Leica RM2235
6. Optional Accessories
Inserting the knife
• Rotate the knurled nuts (48) on the right and left of the knife holder forward
in opposite directions, lowering the knife support bar to the lowest pos-
sible position, thus ensuring that the knife edge will not be damaged when
inserting the knife.
• Unscrew the clamping screws (49) as far out as possible (rotate coun-
terclockwise).
• Hold the knife (47) at the knife base and carefully insert it in the holder
from the side as shown with the cutting edge facing upward.
Knife height adjustment
When adjusting the clearance angle, the knife edge should be positioned as
exactly as possible in the actual center of rotation of the knife holder. The
lay-on edge (39) of the rear clamping chucks serves as a reference position
for correct knife height adjustment. The knife edge should be parallel with
the locating edges.
• Rotate the knurled nuts (48) uniformly and backwards until the knife
blade is parallel to the lay-on edge (39) (see detailed illustration) of the
rear clamping chucks.
• To clamp the knife (47) evenly screw the two knife clamping screws (49)
inward (rotate clockwise).
Lateral repositioning of the knife
• Push knife guard (8) to the center.
• Loosen the clamping screws (49) by turning them counterclockwise.
• Push the knife (47) to the left or right as required.
• To clamp the knife (47), always tighten the clamping screw (49) first
which is located on the side to which the knife has been repositioned by
turning it clockwise.