Leica CM1950 manual Installing the Heat Conductor Block, Stationary Optional

6. Installation

6.5.5 Installing the Heat Conductor Block, Stationary (Optional)

1

Fig. 24

6.5.6Installing the Knife/Blade Holder and Adjusting the Clearance Angle

3

1

25

4

2	a
	Fig. 25

The holder (1, Fig. 24) of the heat conductor block is screwed to the left housing wall using the No. 4 Allen key provided. (Preferably, begin with the bottom screw. Then, rotate the holder upwards (see arrow) and insert and tighten the top screw).

Now, attach the cover for the quick freeze shelf to protect the shelf from frost.

For temperature reasons, install the knife/blade holder on an appropriate base.

•Set the knife or blade holder (1, Fig. 25) on the base (2), adjust the clearance angle (on the left of the knife/blade holder) to approx. 2°-5° and secure it in the bore (3) on the base (2) using the No. 4 Allen key.

•Push the knife holder base (2) on the dovetail guide (4) from the front and tighten it using the clamping lever (5). To move the base, open the clamping lever only a little to prevent acciden- tal sliding in the direction of the specimen head.

•If the clamping distance is not sufficient, the clamping lever (3) can be moved. To do so, pull the lever out and move it to the next position.

When removing the knife holder base

(2)from the refrigerated cryostat chamber, hold it by the grip points (a – front and rear) to keep your fingers from freezing.

Leica CM1950 – Cryostat 27