Leica Biosystems CM1860/CM1860 UV - Manual (Page 48)

48 Instructions for Use V1.4 – 10/2012
7.3.4 Knife holder CN-Z with anti-roll guide
3a
Fig. 48
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 this knife holder, the clamping jaws are not
offset.
• Pressure plate permits the full length of the
knife to be utilized.
• The CN knife holder can be used to hold
tungsten-carbide tipped or steel knives.
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
For daily cleaning, remove the section waste from the knife holder using a dry brush.
Use a cold brush or section waste will thaw and stick to the blade or knife holder.
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.
Mechanical damage to the pressure plate will strongly affect the sectioning quality. For
this reason it is important to ensure that it is not damaged during sectioning, cleaning or
other functions.
7. Daily Use of the Instrument