Leica Biosystems SM2500 - Manual (Page 39)

39 Leica SM2500
Mounting the base plate onto the sledge
• Remove the lid (1) from the sledge.
• Position the sledge about 3 cm away from the
front limit position:
In front, there must be enough space to easily
place torque wrench (8) on eccentric bush (2).
The microtome spindle must not be visible in
opening (3).
• Pull eccentric bush (2) forward until the red ring
becomes visible and the red line is on top.
• If desired, insert eccentric ring (4) (plane side
facing upwards!).
The eccentric ring blocks the orienta-
tion mechanism to ensure the section-
ing plane is not altered.
Caution!
When working with the eccentric ring,
NEVER attempt to orient the specimen,
as this would severely damage the
specimen orientation mechanism! - See
also chapt. 5 ‘Specimen orientation’.
• Insert clamping device (6) of base plate (5) ver-
tically into opening (3).
• Lock centering pin (7) into place (tilt slightly).
• Push eccentric bush (2) inwards as far as it will
go (red line must be on top).
• Turn eccentric bush (2) clockwise until the
green line is on top.
• Place torque wrench (8) (size 32) on the eccen-
tric bush (with the arrow pointing to the right).
• Turn torque wrench clockwise until a slight
click can be heard and felt (= tightening torque
of 45 Nm).
DO NOT TURN ANY FURTHER, to pre-
vent the thread of the eccentric bush
from being stripped!
5. Operation
Eccentric ring - optional! 4
1
2
3
5
6
7
2
8
Fig. 34a
Fig. 35
Fig. 36
Fig. 37
Fig. 34