20
Instruction manual V 2.3 – 02/2009
The orientation feature allows you to adjust the
position of the specimen surface without having
to release the specimen clamping mechanism.
•
Turn the coarse feed wheel until the fixture
for specimen clamps (
31
) has reached the
rear limit position (see
chapter 5.5
).
•
Release the clamping lever (
20
,
Fig. 10
) on
the front side of the microtome base plate
and slide knifeholder base and knife holder
to a position just before the specimen.
See
Fig. 10, p.17
or
Fig. 26, p. .28
.
Important for Leica RM2125 RT!
Specimen blocks must not be oriented
during the retraction phase!
If a block is oriented during retrac-
tion, prior to the next section the
block will advance by the retraction
value PLUS the selected section
thickness. This may cause damage to
both specimen and knife!
5.4 Orienting the specimen
(possible only with orienting fixture for specimen clamps)
When working with the large-size
standard specimen clamp (50 x 55
mm), the north-south orientation can
only be utilized up to an angle of
about 4° instead of 8°.
Fig. 13
29
31
30
•
Move fixture for specimen clamps to upper-
most position (turn handwheel) and lock the
handwheel in 12 o’clock position.
•
Rotate eccentric lever (
29
) counterclockwise
to release the clamping mechanism.
•
Turn adjusting screw (
31
) to orient the speci-
men in north-south direction. Turn adjusting
screw (
30
) to orient the specimen in east-
west direction.
•
Rotate eccentric lever (
29
) clockwise to se-
cure the clamping mechanism.
5.
Operation
Summary of Contents for RM2125
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