Leica Biosystems SM2500 - Manual (Page 52)

5.5.10 Mounting knife holder C
Knife holder C consists of 3 components:
The knife holder with integrated knife guard and
two clamping blocks to fasten the knife holder to
the microtome.
1. Preassemble the three components prior to
mounting them onto the microtome:
Slide the clamping blocks (1, 2) onto the pins
(3a) of the knife holder (3).
Clamping block 1 (bearing the clearance angle
scale) must be on the left, clamping block (2)
on the right; the slots in each clamping block
must point backwards.
Secure with two slotted screws (4).
The bearing blocks of the microtome
must be clean. - Clean, if necessary.
Place the preassembled knife holder
onto the bearing blocks from above. Do
not slide the knife holder onto the
bearing blocks to prevent the bearing
surface from getting scratched.
2. Place the knife holder onto the two bearing
blocks of the microtome, fitting the two pins
(one on the underside of each clamping block)
into the bores in the bearing blocks.
3. With an Allen key, size 8, tighten all 8 clamp-
ing screws (5, 6) lightly and alternately.
4. Next, loosen the 4 rear screws (5) again.
Tightening first all 8 screws followed
by releasing the 4 rear screws is im-
portant to prevent the knife holder from
being misaligned!
5. Turn the knife holder (3) upwards/backwards
until the knife clamping slot is in the position
shown in Fig. 64 and the 6 knife clamping
screws (8) are easily accessible.
5. Operation
52
1
2
3a
3a 4
4
5
5
6
6 3
7
Fig. 63
Fig. 64
8 5
Instruction manual V 1.3 – 10/2007