Leica Biosystems RM2245 - Manual (Page 31)

29 Leica RM2245
33
34
Important!
Never turn the
screw more than
1 /
2
turn at a time.
5. Operation
Fine adjustment of the force balance
If another accessory of a different weight is
mounted on the specimen head (33), you must
check whether it is necessary to readjust the
force balance.
Checking the correct setting:
• Attach the new accessory and clamp the
specimen.
• Set the specimen head to half the height of the
vertical travel range by turning the handwheel
( Fig. 18 ).
If the specimen head remains in this exact posi-
tion, the setting is correct.
If the specimen head moves, i.e. it is raised or
lowered, fine adjustment is necessary.
Fig. 20
Failure to adjust the force balance may
result in injury while working.
The force balance is adjusted using the screw
(34), which can be accessed by removing the sec-
tion waste tray on the bottom of the base plate of
the microtome. Use the Allen key provided, size 5
(with handle!) for the adjustment.
• If the specimen head moves downwards, turn
the screw approx. 1 /
2
turn clockwise.
• If the specimen head moves upwards, turn the
screw (34) approx. 1 /
2
turn counterclockwise.
• Continue this procedure until the specimen
head no longer moves once released.
Fig. 21