Olympus BH2 Series Complete Teardown, Cleaning, And Reassembly - Page 9

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Olympus BH2 Series Complete Teardown, Cleaning, And Reassembly

Figure 2 – Protect the top of the pillar arm from dust

Remove the Lamphouse

Remove the lamphouse from the rear of the microscope

base. The lamphouse simply plugs into the base and

can be removed by grasping it and pulling it straight

back (for BHS/BHSU scopes, loosen the locking

thumbscrew first). Set the lamphouse aside to prevent

damage. Do not touch the halogen lamp with your

fingers, as oils from your skin may cause premature

failure of the bulb. If the bulb is accidentally touched,

clean it with isopropyl alcohol before proceeding.

Remove the Substage Condenser Carrier

Adjust the condenser height knob on the left-hand side

of the substage condenser carrier to raise the

condenser mount to the top of its range of travel. Rack

the focus block on the stand to its lowest position using

the coarse-focus knobs. Use a 3mm Allen tool or driver

to loosen the M4X12 hex socket-head cap screw locking

the substage condenser carrier onto the sliding focus

block (see

Figure

3).

Figure 3 – Loosen substage condenser carrier lock screw

With the locking screw loosened, grasp the substage

condenser carrier and lift it straight up to remove it

from the sliding focus block (see

Complete Teardown, Cleaning, and Reassembly of the Olympus BH-2 Coaxial Focus Mechanism

Figure

4).

Figure 4 – Lift and remove the substage condenser carrier

Figure 5

shows the microscope stand after the substage

condenser carrier has been removed from the sliding

focus block.

Figure 5 – Substage condenser carrier removed

Place a suitable dust cap over the exposed field lens on

the base of the stand to protect it from dust, debris, and

physical damage (see

Figure

with adhesive tape.

Figure 6 – Protect the field lens with a dust cap

Remove the Rear Cover

Use a suitable JIS screwdriver to remove the four M2X6

pan-head screws securing the rear cover to the pillar

6). Secure this cap in place

Revision 4

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