Olympus BH2-6RE Podręcznik - Strona 15

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outer perimeter of the revolving turret, spaced

approximately 180° apart (see

Figure 42 – Apply black adhesive to the revolving turret

Carefully reinstall the knurled-rubber grip ring onto the

outer perimeter of the revolving turret, making sure to

not stretch or damage the grip ring (see

Figure 43 – Reinstall the knurled-rubber grip ring

Use dry cotton swabs to thoroughly remove any visible

silicone RTV squeeze-out (see

Figure 44 – Remove any silicone RTV squeeze-out

Complete Teardown, Cleaning, and Reassembly of the Olympus BH2-6RE Modular Revolving Nosepiece

Figure

42).

Figure

43).

Figure

44).

Ready for Service

The newly reconditioned BH2-6RE modular revolving

nosepiece assembly is now ready to provide many more

years of service (see

Figure

Figure 45 – BH2-6RE ready to be put back into service

Requirements for Periodic Maintenance

Periodic cleaning and application of fresh grease to the

mechanical detent notches in the stationary base is

necessary to minimize wear of the mechanical detents,

thereby maximizing the useful service life of the

BH2-6RE. This can be easily accomplished by simply

removing the protective cover, cleaning and re-greasing

the detent notches, and then reinstalling the protective

cover per the procedures detailed in this document.

The dovetail slide does not need to be removed to

perform this periodic maintenance. If the equipment

sees heavy usage, this service should be performed on a

six-month interval

Problems with the Turret Assembly

A few problems with the turret assembly can

sometimes be found in the reassembled nosepiece. The

first will be seen if one or more of the mechanical

detents are excessively worn. This will cause radial float

of the revolving turret in one or more of the objective

positions, and these objectives will have trouble

returning to and maintaining their proper index

position.

This can make it difficult to utilize some

illumination types, such as phase contrast, since the

phase annuli will not be able to hold an acceptable

alignment due to variations in objective indexing.

The other problem that may be seen is caused by

overall float of the revolving turret, relative to the

center point of the stationary base. If there is excess

Field experience has shown that even heavily used scopes (such as those

used in hospitals and clinical lab settings), when lubricated on a six-month

interval, can be expected to provide many years of trouble-free service.

45).

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