Olympus BHSU, Полная разборка, очистка и сборка

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Complete Teardown, Cleaning, and Reassembly of the Olympus BHSU/BHTU Reverse Nosepiece Assembly Revision 3 Page 7 of 19
To remove the reverse nosepiece assembly, hold the
reverse nosepiece assembly in place with one hand and
use a suitable JIS screwdriver to remove the three
M2.6X14 pan-head screws securing it to the microscope
arm with the other hand (see
Figure 4 ).
Figure 4 – Remove screws securing nosepiece assembly
Remove Corrective Optics and Wedge Mount
The wedge mount is attached to the stationary base of
the turret assembly with four M2.6X25 pan-head
screws, and by the corrective-optics assembly, whose
threaded end passes through the center bore of the
wedge mount and screws into the tapped center bore
of the stationary base (see
Figure 5 ).
Figure 5 – Screws securing the wedge mount
Before attempting to loosen and remove the corrective-
optics assembly, use a suitable JIS screwdriver to
remove the four M2.6X25 pan-head screws securing the
wedge mount to the stationary base of the turret
assembly (see
Figure 6 ). It is important to remove these
four screws before attempting to remove the
corrective-optics assembly, to prevent the barrel of the
corrective-optics assembly from binding with the center
bore in the wedge mount (due to the very close
tolerances involved) when the corrective-optics
assembly is loosened and removed.
Figure 6 – Remove screws securing the wedge mount
Once the four M2.6X25 pan-head screws securing the
wedge mount to the turret assembly have been
removed, use non-marring pliers or a suitable strap
wrench to grip the barrel of the corrective-optics
assembly and loosen the corrective-optics assembly by
rotating it counter-clockwise (see
Figure 7 ).
Figure 7 – Loosen the corrective optics assembly
Unscrew and remove the corrective-optics assembly,
which at this point is all that is holding the wedge
mount onto the stationary base of the turret assembly
(see
Figure 8 ). Once the corrective-optics assembly has
been removed, place it someplace where it will be
protected from physical damage, dust, and debris.
Figure 8 – Remove the corrective-optics assembly