Olympus BH2 Series Demontage, reiniging en hermontage - Pagina 22
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Field-Diaphragm Assembly
There were two versions of the field-diaphragm
assembly
used
on
microscopes. The older style field-diaphragm assembly
is shown in
Figure
74, and the newer style is shown in
Figure
75.
Figure 74 – Field-diaphragm assembly (old style)
Figure 75 – Field-diaphragm assembly (new style)
Remove the Field-Diaphragm Assembly
Using a suitable JIS screwdriver, loosen and remove the
two m2.6x6 screws securing the field-diaphragm
assembly to the base casting (see
Figure 76 – Remove screws securing the field diaphragm
Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames
the
BHS/BHSU/BHT/BHTU
Figure
76).
Remove the (now loose) field-diaphragm assembly from
the base casting (see
Figure
to not damage the Light Exit Assembly with the field-
diaphragm assembly (the two assemblies are very close
in proximity, and the reflective coating of the primary-
surface mirror of the Light Exit Assembly is extremely
fragile).
Figure 77 – Remove the field diaphragm assembly
Servicing the Field-Diaphragm Assembly (Old Style)
This section applies only to the older style field-
diaphragm assembly (see
filed-diaphragm assembly is covered later in this
document.
Disassemble the Field-Diaphragm Assembly (Old Style)
The various components of the older style field
diaphragm assembly are shown in
the stop pin, which is shown in
Figure 78 – Components of field diaphragm (old style)
Using a suitable slotted screwdriver, loosen and remove
the slotted diaphragm stop pin from the diaphragm
rotor. See
Figure
79.
77), being very careful so as
Figure
74). The newer style
Figure 78
(except for
Figure
79).
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