Olympus BH2 Series Teardown, Cleaning And Reassembly - Page 10

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Olympus BH2 Series Teardown, Cleaning And Reassembly

1. Introduction

While holding the knurled outer barrel stationary with

the soft-jaw pliers, use a suitable slotted screwdriver to

unscrew and remove the slotted end-screw from the

knurled outer barrel (see

Figure 5 – Loosen and remove the slotted end-screw

After the slotted end-screw has been removed, rotate

the knurled outer barrel clockwise (if necessary) until

the smooth end of the knurled outer barrel contacts the

stationary inner barrel (see

Figure 6 – Snug the knurled outer barrel down

The next step is to remove the e-clip from the groove in

the end of the plunger shaft. In order to expose the end

of the plunger shaft to access the e-clip, the plunger

must be held in the fully depressed position. One way

to do this is to use a dovetail mounting disk from an old

binocular head (see

Figure

Figure 7 – Mounting disk from an old binocular head

Teardown, Cleaning, and Reassembly of the Miscellaneous Parts of the Olympus BH-2 Microscope Frames

Figure

5).

Figure

6).

7) to depress the plunger.

Carefully place the circular dovetail of the mounting

disk (see

Figure

7) into the dovetail recess for the

viewing head, using the circular dovetail to depress the

plunger while seating the mounting disk into the recess

(see

Figure

8).

Figure 8 – Place mounting disk into dovetail recess

Once the mounting disk has been properly seated into

the dovetail recess for the viewing head, slide the

mounting disk towards the locking screw and observe

that the end of the plunger shaft, with the attached

e-clip, protrudes from the knurled outer barrel of the

thumbscrew when the mounting disk has been slid as

far as it can go towards the locking screw (see

Figure 9 – Slide the mounting disk to expose the e-clip

Use a suitable clamp with non-marring jaws to hold the

mounting disk in the slid-over position in the dovetail

recess, thereby keeping the e-clip on the end of the

plunger shaft fully exposed (see

clamp is secured to hold the mounting disk in this

position, the plunger will remain depressed such that

there is sufficient access to remove the e-clip from the

plunger shaft.

Figure

10). Once the

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9).