Olympus BH2 Series 완전한 분해, 청소 및 재조립 - 페이지 14

{카테고리_이름} Olympus BH2 Series에 대한 완전한 분해, 청소 및 재조립을 온라인으로 검색하거나 PDF를 다운로드하세요. Olympus BH2 Series 40 페이지. Phase contrast
Olympus BH2 Series에 대해서도 마찬가지입니다: 문제 해결 및 조정 매뉴얼 (46 페이지), 완전한 분해, 청소 및 재조립 (23 페이지), 분해, 청소 및 재조립 (45 페이지), 매뉴얼 (6 페이지), 설치 매뉴얼 (9 페이지)

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Figure 22 – Remove the left-hand coarse-focus knob

Remove Stop Screw for the Pre-Focus Lock Collar

The M3X6 headless slotted shoulder screw beneath the

pre-focus lock collar needs to be removed before the

pre-focus lock collar can be removed. This stop screw is

staked in place with adhesive, and it is best to soften

this adhesive with gentle heat before removing it. Be

careful when applying heat to the stop screw. Heat the

stop screw as best you can while at the same time

minimizing the heat exposure to the plastic stop collar,

to prevent the stop collar from melting or deforming.

Use a baffle of some sort to shield the plastic stop collar

from the hot air of the heat gun. Once the M3X6

headless slotted shoulder screw has been heated, use a

small (3mm) slotted screwdriver to loosen and remove

the stop screw (see

Figure

Figure 23 – Remove the stop screw for the lock collar

Disassemble the Pre-Focus Stop Mechanism

To disassemble the pre-focus stop mechanism, the

brass shaft mount on the left-hand side needs to be

removed from the coarse-focus shaft. Apply heat to the

brass shaft mount to loosen the adhesive holding the

two perpendicularly oriented M3X5 setscrews in place.

Be careful to not deform or melt the plastic stop collar

when heating the brass shaft mount. Use a 1.5mm

Allen tool or driver to loosen and remove the two M3x5

setscrews securing the brass shaft mount to the coarse-

focus shaft (see

Figure

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

23).

24). If the fit of the 1.5mm

driver seems loose, try using a 1/16" driver instead,

since it is a bit larger than the 1.5mm driver.

Figure 24 – Loosen setscrews holding brass shaft mount

After both of the setscrews have been removed from

the brass shaft mount, rotate the pre-focus lock collar

counterclockwise to release the pre-focus stop. This

step is necessary to minimize the possibility of

damaging the coil spring under the brass shaft mount

while loosening and removing the brass shaft mount in

the following steps. Once the pre-focus stop has been

released, grasp the brass shaft mount with non-marring

pliers to hold it stationary (see

holding the brass shaft mount stationary with the non-

marring pliers, rotate the coarse-focus knob on the

right-hand side counterclockwise to loosen the brass

shaft mount from the coarse-focus shaft. It may be

necessary to apply gentle heat to the brass shaft mount

first, to soften any dried grease that may be holding the

brass shaft mount to the coarse-focus shaft, but do not

melt or deform the plastic stop collar.

Figure 25 – Hold the brass shaft mount stationary

Set the pliers aside.

stationary with one hand, and with the other hand,

reach around to the right-hand side of the pillar arm

and rotate the coarse-focus knob counterclockwise until

Figure

25).

Hold the brass shaft mount

Revision 4

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