Olympus BH2-6RE Manual - Page 17
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Appendix 1
Inspecting the Revolving Turret for Wear of the Mechanical Detents
The photos below show the revolving turret from a BH2-5RE modular revolving nosepiece which has severely worn
mechanical detents, as a result of extensive use and a poor service history. The revolving turret is made of brass (a soft
metal), with a hard, corrosion and wear-resistant layer of dull, silver-colored plating on the exposed surface. When the
hard plating in the area of the mechanical detents begins to wear away, as a result of severe use without routine
cleaning and re-greasing of the detents, the underlying brass will then be exposed. This exposed brass will then wear
very quickly with continued usage, soon rendering the nosepiece unusable.
Figure 46
shows an example of a revolving
turret with severe wear.
Figure 47
shows a close-up of one of the mechanical detents, where the wear can clearly be
seen.
Figure 46 - Revolving turret with severely worn mechanical detents
Figure 47 - Close-up view of a worn mechanical detent notch
Complete Teardown, Cleaning, and Reassembly of the Olympus BH2-6RE Modular Revolving Nosepiece
Page 17 of 18
Revision 3