Olympus BH-2 - Figure 139 - Place Lower Retaining Ring into Metal Barrel; Figure 140 - Engage and Snug the Lower Retaining Ring; Figure 141 - Place Collector Lens into Metal Barrel; Figure 142 - Install Lower Spacer Tube into Metal Barrel

Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames Revision 1 Page 34 of 45
Carefully place the lower retaining ring (the smaller of
the two) into the metal barrel (see Figure 139).
Figure 139 – Place lower retaining ring into metal barrel
Use a suitable lens spanner tool (item 8 of Appendix 1)
to engage and snug the lower retaining ring into the
metal barrel (see Figure 140).
Figure 140 – Engage and snug the lower retaining ring
Carefully lower the glass collection lens into the metal
barrel (with the convex side facing upwards) and seat it
onto the lower retaining ring within the metal barrel
(see Figure 141).
Figure 141 – Place collector lens into metal barrel
Carefully place the lower spacer tube into the metal
barrel and press it down until it contacts the glass
collector lens (see Figure 142).
Figure 142 – Install lower spacer tube into metal barrel
Use a suitable lens suction tool (item 9 of Appendix 1)
to carefully lift and place the upper glass diffusion disk
(the larger of the two diffusion disks) into the metal
barrel, on top of the lower spacer tube (see Figure 143).
Figure 143 – Carefully place large diffuser disk into barrel
Carefully place the upper spacer tube into the metal
barrel and press it down until it contacts the upper
diffuser disk (see Figure 144).
Figure 144 – Install the upper spacer tube into barrel