Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 31 of 45
Reinstall the Field-Diaphragm Assembly
Place the field diaphragm assembly into position in the
base casting, oriented as shown in Figure 122.
Figure 122 – Place field diaphragm assembly into position
Align the two holes in the field diaphragm assembly
with the tapped holes in the base casting, and using a
suitable JIS screwdriver, reinstall the two m2.6x6 screws
to secure the field diaphragm assembly to the base
casting (see Figure 123).
Figure 123 – Secure field diaphragm assembly to base
Light Inlet Assembly (BHT/BHTU)
The Light Inlet Assembly of the BHT/BHTU is shown in
Figure 124.
Figure 124 – Light Inlet Assembly for the BHT/BHTU
Remove Light Inlet Assembly (BHT/BHTU)
Using a 1.3mm or .050” hex tool, loosen and remove
the two m2.6x3 setscrews securing the Light Inlet
Assembly into the bore of the base casting (see Figure
125).
Figure 125 – Remove setscrews securing barrel to base
Remove the Light Inlet Assembly from the bore in the
base casting by pulling it straight backwards (see Figure
126).
Figure 126 – Remove the Light Inlet Assembly from base
Servicing the Light Inlet Assembly (BHT/BHTU)
Note: It is rarely necessary to service the Light Inlet
Assembly on the BHT/BHTU scopes. This section is
included in this document for the sake of completeness.
The BHT/BHTU light inlet assembly may be serviced per
the following.
Disassemble the Light Inlet Assembly (BHT/BHTU)
Use a suitable lens spanner tool (item 8 of Appendix 1)
to carefully loosen and remove the upper retaining ring
from the end of the metal barrel (see Figure 127 and
Figure 128), being careful to not scratch the exposed
glass disk in the process of removal.
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