Complete Teardown, Cleaning, and Reassembly of the Olympus BHSU/BHTU Reverse Nosepiece Assembly
Revision 3
Page 9 of 19
and remove it. To lock the position of the revolving
turret, first spin the revolving turret until the bore in the
stationary base aligns with one of the five threaded
objective bores in the revolving turret. While holding
the turret such that these two bores remain aligned,
insert a small screwdriver handle of the appropriate size
into the two bores (see
). This will prevent the
revolving turret from moving relative to the stationary
base when torque is applied to loosen the slotted lock
ring. The handle of the screwdriver should safely
prevent the turret from spinning, without causing any
damage to the fragile brass threads in the revolving
turret.
Figure 14
–
Insert screwdriver into bores to lock the turret
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
) to loosen the slotted lock ring
securing the pivot-adjustment screw to the stationary
base (see
Figure 15
–
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 16
–
Remove the 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
). Note t
hat 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.
Figure 17
–
Remove the pivot-adjustment screw
