Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 37 of 45
Servicing the Light Exit Assembly
The Light Exit Assembly can be serviced per the
following.
Disassemble the Light Exit Assembly
Rotate the knurled field-adjustment ring to the fully
clockwise position to set the field diaphragm to the
wide-open position (see Figure 155).
Figure 155 – Fully open the field diaphragm
Using a suitable JIS screwdriver, remove the three m2x7
screws securing the filter holder in place in the recess of
the knurled field-adjustment ring (see Figure 156).
Figure 156 – Remove screws securing the filter holder
Lift and remove the filter holder from the recess in the
knurled field-adjustment ring (see Figure 157).
Figure 157 – Lift and remove the filter holder
Lift and remove the knurled field-adjustment ring from
the frame of the Light Exit Assembly (see Figure 158).
Figure 158 – Lift and remove the field-adjustment ring
Use a suitable lens spanner tool (item 8 of Appendix 1)
to loosen the threaded retaining ring holding the glass
field-exit lens in place (see Figure 159 and Figure 160).
Figure 159 – Lens spanner tool with bent tips
Figure 160 – Loosen the threaded retaining ring
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