Leica Biosystems SM2500 - Manual (Page 54)

54 Instruction manual V 1.3 – 10/2007
Adjusting the knife level (knife holder C)
With each resharpening procedure the overall
height of the knife diminishes.
Therefore, the adjusting screws (12) may have to
be readjusted from time to time to ensure the
knife is always situated at the correct level.
Correct knife level:
There has to be a 3-mm distance between the
lower edge (10) of the wedge angle and the up-
per edge (11) of the pressure plate of the knife
holder.
To adjust the knife level:
• Insert knife into holder and clamp.
• Turn the knife holder so that the knife edge
points upwards.
• Tighten one of the rear clamping screws (5) to
secure the knife holder in that position.
• Release the knife clamping screws (8).
• Readjust the adjusting screws (12) using an
Allen key, size 4, until the distance between
lower edge (10) and upper edge (11) is 3 mm.
• Retighten the knife clamping screws (8) with
an Allen key size 8 starting with the center
screws and working your way outwards from
side to side.
Only tighten as many screws as the knife is
actually wide.
• Continue from point 9 (page 51) onwards.
5. Operation
Fig. 66
10
11
8
12
Fig. 67
8 5
12 12