ZEISS
7 Troubleshooting | 7.2 Column
2. Insert the four grub screws into their holes.
INFO:
The grub screws have pointed ends.
3. To center the filament, use a hex key 1.5 mm
to equally tighten the grub screws.
4. Attach the top section of the filament holder to
the bottom section of the filament holder.
Pay attention to correctly align the pin and the
hole.
7.2.2.4 Reassembling the Gun
7.2.2.4.1 Installing the Filament Holder to the Firing Unit
To assemble the firing unit, you need to reinstall the filament holder.
If you do not use a pre-aligned filament, you also need to install the tensator spring washer.
2
1
Fig. 45: Filament holder and tensator spring washer
1
Filament holder
2
Tensator spring washer
The firing units for LaB₆ and tungsten filaments are different. If you want to replace a LaB₆ fila-
ment with a tungsten filament, you have to replace the firing unit as well.
Info
Without further ado, you cannot install a firing unit for LaB₆ filaments to a microscope that is
designed for tungsten filaments. This can only be achieved by an upgrade of the microscope at
the factory.
At the customer’s location, this upgrade cannot be performed.
Instruction Manual ZEISS EVO | en-US | Rev. 10 | 354706-0780-006
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Содержание EVO
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