Leica Biosystems CM1100 - Manual (Page 22)

22 Instructions for use V1.3 RevB – 09/2012
8.4 Trimming
• Remove the anti-roll guide from the cutting edge.
• Unlock the handwheel.
Always observe the specimen while ap-
proaching the sample to the blade, to avoid
that the specimen collides with the cutting
edge.
A collision can cause severe damage to both
the blade and specimen!
• Turn the coarse feed wheel clockwise to approach
the specimen to the cutting edge.
• Rotate the handwheel cautiously and check if the
specimen comes in contact with the cutting edge.
• Trim the sample to the desired sectioning plane by
continuously turning the coarse feed wheel and
handwheel.
• Place the anti-roll guide on the blade during trim-
ming and check if it is correctly adjusted.
The anti-roll guide is correctly adjusted when
the section smoothly slides down between the
anti-roll plate and the blade (see Fig. 21.1)!
• Readjust the anti-roll guide if necessary (see 8.2.6).
8. Daily operation
8.3 Coarse feed wheel
The coarse feed wheel is located on the left side of the
housing. It has a retractable countersunk handle. The
coarse feed wheel always rotates during sectioning
and may therefore not be obstructed.
The coarse feed is used for rapid horizontal movement
of the specimen, both forward and backward.
Clockwise turning moves the sample forward towards
the knife. Counterclockwise turning moves the sample
backward away from the knife.
After having reached the rear or front limit stop respec-
tively, the coarse feed wheel cannot be rotated any
more. Once the front limit stop is reached, no more
specimen advance takes place.
Fig. 22