Remove Corrective Optics And Wedge Mount; Figure 4 - Remove Screws Securing Nosepiece Assembly; Figure 5 - Screws Securing The Wedge Mount; Figure 6 - Remove Screws Securing The Wedge Mount - Olympus BHSU Complete Teardown, Cleaning, And Reassembly

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 – 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 – 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
Complete Teardown, Cleaning, and Reassembly of the Olympus BHSU/BHTU Reverse Nosepiece Assembly
Figure 4).
Figure 5).
tolerances involved)
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 – 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
when the corrective-optics
Figure 7).
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