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Instructions for Use, V 2.2 RevI – 09/2016
3. Instrument components and specifications
Fig. 8
Motor
protection
fuse
Heat sink
Voltage selector switch
with fuses
Main switch
Power supply
Connecting
cable for control
panel
Connecting jack
for foot switch
3.2 Instrument specifications
The Leica RM2255 is a motorized rotary micro-
tome.
• The specimen feed system with zero-backlash
and maintenance-free cross roller guides and
the stepper motor operated coarse feed sys-
tem are located in a dust-proof plastic housing.
• The instrument is equipped with a safety hand-
wheel with a handle that can be centered, as
well as a mechanical handwheel lock.
• All controls and LEDs are centralized in a
separate control panel.
All control elements are logically arranged in
functional groups and easily identifiable.
• The specimen retraction can be turned off.
In manual operation the retraction can be
adjusted. In motorized operation the retrac-
tion value varies with the selected sectioning
speed. An LED illuminates while the sample is
in retraction.
• The electric coarse feed operates at two
speeds. In the sectioning mode, the coarse
feed buttons have a STEP function.
• Three motorized sectioning modes (CONT,
SINGLE, and STEP) are available as well as
one manual sectioning mode, the rocking
mode ROCK.
In rocking mode, it is enough to move the
handwheel a short distance back and forth in
order to create a section.
Rear side of instrument
Magnet for holding
the wrench
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