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Optional accessories – Leica Biosystems RM2235 User Manual

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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.