Olympus BH2-6RE, Manual

Page: 8 / 18

Complete Teardown, Cleaning, and Reassembly of the Olympus BH2-6RE Modular Revolving Nosepiece Page 8 of 18
Revision 3
is such that it will seat fully into the slot of the slotted
lock ring.
Figure 9 – Screwdriver modified to remove slotted lock ring
Prevent the Revolving Turret from Spinning
Before attempting to loosen the slotted lock ring, the
revolving turret must first be locked in position relative
to the stationary base, to allow for sufficient torque to
be applied to the slotted lock ring to loosen and remove
it. To lock the revolving turret, first spin the revolving
turret until the bore in the stationary base aligns with
one of the six threaded objective bores in the revolving
turret. Next, insert a small screwdriver handle of the
appropriate size into the two bores (see
Figure 10 ). This
will prevent the revolving turret from moving relative to
the stationary base when torque is applied to loosen
the slotted lock ring, without causing any damage to the
fragile brass threads in the revolving turret.
Figure 10 – Insert screwdriver into bores to lock turret
Loosen and Remove the Slotted Lock Ring
Hold the turret assembly by grasping the knurled-
rubber grip ring on the outer perimeter of the revolving
turret and use the slotted screwdriver with the notched
tip (see
Figure 9 ) to loosen the slotted lock ring securing
the pivot-adjustment screw to the stationary base (see
Figure 11 ).
Figure 11 – Loosen the slotted lock ring
Once the slotted lock ring has been loosened, remove
the screwdriver handle from the bores in the revolving
turret and the stationary base (which is locking the
revolving turret to the stationary base) to get it out of
the way. Unscrew and remove the slotted lock ring
from the pivot-adjustment screw (see
Figure 12 ).
Figure 12 – Remove the loosened slotted lock ring
Remove the Pivot-Adjustment Screw
With the slotted lock ring removed, use a suitable
slotted screwdriver to unscrew and remove the pivot-
adjustment screw from the center bore of the
stationary base (see
Figure 13 ). There is a ¼” bearing
ball in the center bore of the stationary base, beneath
the pivot-adjustment screw. Do not allow this bearing
ball to fall out or it may become lost.