Leica Biosystems RM2255 - Manual (Page 73)

71 Leica RM2255
8. Cleaning and Maintenance
• Raise the specimen clamp to the upper end
position and activate the handwheel lock.
• Switch the unit off and unplug it.
• Remove the blade from the knife holder and
insert it in the receptacle at the bottom of the
dispenser, or remove the knife from the knife
holder and put it back in the knife case.
• Remove knife holder base and knife holder for
cleaning.
Instrument and outside surfaces
If necessary, the varnished outside surfaces of the control panels can be cleaned with a mild
commercial household cleaner or soap water and then be wiped with a moist cloth.
To remove paraffin residue, xylene substitutes, paraffin oil, or paraffin removers such as "Para
Gard" (Polysciences) can be used.
The instrument must be completely dry before it can be used again.
Cleaning the knife
• Remove the specimen from the specimen
clamp.
• Remove section waste with a dry brush.
• Remove specimen clamp and clean sepa-
rately.
Always remove the knife / blade before detaching the knife holder from the instrument.
Always put the knives back into the knife case when not in use!
Never place a knife anywhere with the cutting edge facing upwards and never try to catch a
falling knife!
When using cleaning agents, observe the manufacturer's safety instructions and the laboratory
regulations valid in the country of use.
When cleaning the outer surfaces, do not use xylene, scouring powders or solvents containing
acetone or xylene. Xylene or acetone will damage the finished surfaces!
Ensure that liquids do not enter the interior of the instrument during cleaning!
8.1 Cleaning the instrument
Before each cleaning, carry out the following preparatory steps:
Never place blade or knife holders with/
without base close to the edge of the
table to prevent them from falling down.
Clean using an alcohol-based solution or acetone.
Always wipe the knife from the back of the knife to the cutting edge. NEVER wipe in the oppo-
site direction - risk of injury!