Olympus BH-NRE 매뉴얼 - 페이지 14

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Ready for Service

The newly reconditioned BH-NRE modular revolving

nosepiece assembly is now ready to provide many more

years of service (see

Figure

Figure 42 – BH-NRE 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

BH-NRE. 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 (see

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.

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

play in the center-pivot ball, such that the turret is not

held in the exact center point, the revolving turret may

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.

Complete Teardown, Cleaning, and Reassembly of the Olympus BH-NRE Modular Revolving Nosepiece

42).

Appendix

1). This will

move slightly, resulting in poor objective centering and

all that that entails. This problem may be encountered

if the threaded retaining ring has not been properly

snugged down, or if the center pivot-adjustment screw

has not been properly adjusted to remove the play in

the center-pivot mechanism.

Original Olympus Documentation

Scanned versions of the following PDF service manuals

are available for download at various microscope-

related hobbyist sites on the internet. These can also

be found by searching for the titles in an internet search

engine, such as Google.

Olympus Research Microscopes Series BH2 (BHS) Repair Manual

Olympus Research Microscope BH2 Repair Manual

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