Olympus BH2-BI30, Complete Teardown, Cleaning, And Reassembly

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Complete Teardown, Cleaning, and Reassembly of the Olympus BH2-BI30 Binocular Viewing Head
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Rev. 1) Page 12 of 34
Figure 15 – Remove the center cover from the frame
Remove the Frame Assembly from the Main Housing
Adjust the interocular-distance slide such that the four
M3x6 JIS screws securing the B2-BI frame assembly to
the B2-BIC main housing assembly are accessible (see
Figure 16 ).
Figure 16 – Screws securing front frame to the main housing
Use a suitable JIS screwdriver to remove the four M3x6
JIS screws securing the B2-BI frame assembly to the
B2-BIC main housing assembly (see
Figure 17 ).
Figure 17 – Remove screws securing front frame to housing
Carefully remove the B2-BI frame assembly from the
B2-BIC main housing assembly (see
Figure 18 ), being
careful not to damage or smudge the prisms in the
process.
Figure 18 – Remove frame assembly from main housing
Remove Mounting Disk Assembly from Main Housing
For routine cleaning and lubrication of the BH2-BI30 binocular
viewing head, there is no reason to remove the mounting disk from
the main housing, but the removal and reinstallation procedure is
included below for the sake of completeness of this document.
INCLUDED FOR REFERENCE
Apply adhesive tape to the outer surface of the main
housing to mark the position in which mounting disk
assembly is currently installed. This will allow the
mounting disk assembly to be reinstalled into the same
relative position later, thereby minimizing any effect of
P1/P2 prism misalignment on the optical performance
of the reassembled viewing head (see
Figure 19 ).
Figure 19 – Apply tape to mark placement of mounting disk
Use a suitable JIS screwdriver to remove the three
M3x8 JIS screws securing the mounting disk assembly
onto the main housing (see
Figure 20 ).
Figure 20 – Remove screws securing mounting disk assembly