Leica Biosystems CM1520 - Manual (Page 44)

44 Instructions for Use V1.3 – 10/2012
7.3.4 Knife holder CN-Z with anti-roll guide
3a
Fig. 46
• For this knife holder, the clamping jaws are not
offset.
• Pressure plate permits the full length of the
knife to be utilized.
• Use carbide metal and steel knives here.
This is used for holding conventional and carbide-metal knives up to 16 cm in length. The pres-
sure plate ensures extreme stability and the full utilization of the knife blade.
The height of the knife edge is adjustable, and the clearance angle adjustment must be adjusted
separately ( see Knife holder CN ).
The knife guard (18) is moveable.
18
7.3.5 Cleaning the blade and knife holders
7. Daily Use of the Instrument
The height of resharpened knives must
be adjusted using knurled screws (3a)
(approx. 1 mm under the edge of the
clamping jaw).
Make sure that the knife is parallel
from one end to the other.
For daily cleaning, it is enough to remove the section waste from the knife holder using a
dry brush. Please use a cold brush, as otherwise the section waste will thaw and stick to
the blade or knife holder.
Mechanical damage to the pressure plate will strongly affect the sectioning quality. For
this reason it is important to ensure that the clamping area is not damaged during clean-
ing or other work.
For disinfection, commercially available, mild cleaners and disinfectants can be used –
we recommend Leica Cryofect (not available in the USA).
Wear gloves during cleaning to prevent frostbite.