Olympus BX2 SERIES Manuel utilisateur

Maintenance Manual

for maintenance engineer

BX2

Thank you for purchasing the Olympus microscope BX2.

In order to fully utilize its performance and secure optimum condition, please read this manual before maintenance work.

Please also keep it at hand during maintenance as well as for future reference.

BX2 MAINTENANCE MANUAL

INTRODUCTION

The purpose of this manual is to satisfy any requirements for maintenance material

that maybe considered as necessary to professionals in the maintenance field, such

as Maintenance engineer in Hospitals.

It is intended to be used as a tool for performing basic maintenance procedures if

needed or when required as per the recommended maintenance schedule.

The sections from this manual only cover procedure pertaining maintenance ’s that

are considered to be easily performed. For more involved maintenance ’s or repairs,

it is recommended that you contact a qualified service engineer from your local

Authorized Olympus dealer.

Maintenance parts, grease, and other items specified in the manual can be ordered

from your Authorized Olympus dealer, and subject to change without notice.

The recommended maintenance schedule is shown below as reference. ( *Necessary item)

Portion Cleaning Optical/mechanical check Maintenance schedule

Optical components

1) Outer surface *Once in a year

Eyepiece, objective,(If dirt is conspicuous or oil

condenser lens, filter,immersion objective is used,

photo eyepiece cleaning should be made after

every use.)

2) Inner part *Once in a year

Prism, built-in filter,

internal lenses, mirror

Appearance *Once in a year

Microscope frame, mechanical (If dirt is conspicuous, cleaning

part should be made after every use.)

Observation tube * Once in a year

Optical adjustment:

1) Optical axis (standard)

2) Left/right optical axis

3) Revolving axis

4) Parfocality

Mechanical part * Once in two to three years

Focusing unit, stage, revolving Mechanical movement:

nosepiece, aperture/field Grease replacement

iris diaphragm Mechanical adjustment

BX2 MAINTENANCE MANUAL

CONTENTS

Chapter 1. MAINTENANCE PROCEDURE

1. Maintenance of microscope ....................................................................................................1

2. Guide to maintenance..............................................................................................................2

2-1 Overview of maintenance....................................................................................................2

2-2 Cleaning method for the optical components ....................................................................3

3. Preparing for inspection...........................................................................................................6

4. BX2 inspection sheet...............................................................................................................7

Chapter 2. INSPECTION PROCEDURE

1. Checking performance of microscope....................................................................................8

2. Checking dirty portion..............................................................................................................8

2-1 Image influence caused by dirt on each component.........................................................8

2-2 How to find dirty portion through observation ...................................................................9

2-3 How to check cleaning condition.......................................................................................10

Chapter 3. REPAIR PROCEDURE

1. Optical adjustment..................................................................................................................11

2. Mechanical adjustment ..........................................................................................................14

2-1 Adjustment method for the tension of X/Y-wire...............................................................14

2-2 Confirmation of X-wire tesion............................................................................................15

2-3 Confirmation of Y-wire tension..........................................................................................15

2-4 Final adjustment.................................................................................................................16

3. Grease replacement for fine focus adjustment knob ass'y.................................................17

4. Electrical adjustment..............................................................................................................18

5. Connecting diagram...............................................................................................................21

Chapter 4. TROUBLESHOOTING

1. Electrical problem...................................................................................................................23

Chapter 5. JIGS AND TOOLS / GREASES AND ADHESIVES

1. List of jigs and tools................................................................................................................24

2. List of greases ........................................................................................................................24

3. List of adhesives.....................................................................................................................24

Chapter 6. MAINTENANCE PARTS

1. List of maintenance parts.......................................................................................................25

BX2 MAINTENANCE MANUAL MAINTENANCE PROCEDURE

- 1-

Chapter 1.

MAINTENANCE PROCEDURE

1. Maintenance of microscope

1) Fundamental handling

a. Read the instruction manual thoroughly, handle the microscope correctly.

b. Be sure to make a usual cleaning, especially after every use of microscope.

c. When handling the microscope, do not expose it to shock, moisture, heat and dust.

d. If the problem occurs, do not treat it in self-judgement.

2) Using and storing conditions

a.The microscope should be used under no vibration.

If it is placed in such environment as vibration, this causes disturbance and fatigue in

observation and affectsthe photomicrography.

b. It should not be stored in high humidity.

Such condition causes fungus, corrosion on lens and rust on metal part.

Therefore, special caution is exercised if stored in a long period of time.

c. Intense temperature change should be avoided.

Be careful not to place the microscope near window exposed to direct sunlight and air

conditioner. When bringing it into warm room from cold storage location in winter,

condensation occurs on lens and metal part, it causes fungus and rust.

d. It should be kept clean.

The microscope is required to keep away from dust that causes contamination, fungus

on lens and failure of sliding part in the frame.

Be careful not to place it in the environment where the corrodent chemicals such as

hydrogen sulfide, hydrogen fluoride and acid are handled.

< Reference> fungus: occurrence conditions

60 70 80 90 100

Humidity

Temperature

Degree(C)

Aspergillus

Dry blue aspergillus

BX2 MAINTENANCE MANUAL MAINTENANCE PROCEDURE

- 2-

2. Guide to maintenance

2-1 Overview of maintenance

Set your correct interpupillary distance.

Note any areas suggesting a need for

mechanical and/or optical maintenance

by operating it or observing a specimen.

Sweep off dust on the outer surfaces

with the soft brush. If there are stains

on the microscope frame, clean them

with neutral detergent.

Remove the revolving nosepiece, stage

and condenser.

Wipe off any dirt spots on the surface.

The plastic parts should be cleaned with

neutral detergent.

Clean all exposed optics such as

lenses of eyepieces and objectives.

(Only the BX41collector lens should

be cleaned with neutral detergent

because it is made of plastic.)

Mount the removed components to

the microscope frame.

Polish all plastic components and the

frame with silicon cloth.

Return the interpupillary distance to

original condition and prepare for

the inspection. (see page 6)

Do a final check following the inspection

sheet in this manual. (See page 7)

Tool required:

1) 2) 3)

4) 5) 6)

8) 9)

Lens tissue Neutral detergent

(For plastic part or frame)

Cotton swab Blower Silicon cloth

(For finishing)

Cleaning solution

(For lens or filter etc.)

Plastic part

collector lens

or tweezers etc.

OL YMPUS

BX51

PRE-SET

OL YMPUS

BX51

PRE-SET

OL YMPUS

BX51

PRE-SET

OL YMPUS

BX51

PRE-SET

OL YMPUS

BX51

PRE-SET

OLYMPUS

BX51

PRE-SET

BX2 MAINTENANCE MANUAL MAINTENANCE PROCEDURE

- 3-

2-2 Cleaning method for the optical components

Required tools:

1) Lens tissue

2) Cotton swab or tweezers etc. 3) Blower 4)Magnifier (Eyepiece is possible to be usedby turning

it upside down. Refer to page 10.)

5) Cleaning solution: e.g. Alcohol

Before cleaning:Lightly brush the lens surface or blow with the blower before wiping with tissue.

This removes particles that may scratch the lens surface. (to protect the lens coating)

HOW TO CLEAN THE OBJECTIVE LENS

1 2 3 4

Moisten the tip of cotton

swab with cleaning

solution.

With a circular motion,

wipe the top lens

surface with the cotton

swab, to thoroughly

remove any oil or dirt

from the lens.

Dip a new cotton swab

in the cleaning solution

and shake vigorously

to remove any excess

cleaning solution.

wipe the objective lens

from the center towards

the periphery, while

rotating the lens.

When the lens size is large and difference in

level between the lens and the lens frame is small:

Fold the lens tissue several times and moisten it

with cleaning solution.

After that, apply the folded line edge to the center

of lens, push it with index finger and turn the

objective by the other hand to clean the lens

while moving it from the center towards the

periphery.

Cleaning the immersion objective:

Wipe off the immersion oil while absorbing

it with lens tissue that is not moistened.

After that, clean the lens as the same manner

mentioned on the left.

When the top surface of lens frame is higher

than that of lens and remained dirty potion

on the periphery of lens can not be wiped off,

clean the lens referring the above figures,

1 to 4.

Put it on the desk

BX2 MAINTENANCE MANUAL MAINTENANCE PROCEDURE

- 4-

HOW TO CLEAN THE FILTER

Fold the lens tissue into two or three layers and moisten its shaded part with cleaning

solution.

Hold the filter at its edge and fold the lens paper from the lens center to outside as illustrated.

Move the lens tissue gradually to outside while turning the filter by left hand.

HOW TO CLEAN THE PRISM

Hold a sheet of lens tissue between your middle and index fingers, then fold and wrap it around

your index finger. Hold the tissue down with your thumb and moisten it with sufficient cleaning solution.

Wipe the prism surfaces from front to backward at a stroke, applying even pressure.

1) 2) 3) 4) 5) 6)

BX2 MAINTENANCE MANUAL MAINTENANCE PROCEDURE

- 5-

HOW TO CLEAN THE EYEPIECE

1 2

Wrap a sheet of lens tissue

around a cotton swab as

illustrated. If the area to be

cleaned is large, wrap the

lens tissue looser and

thicker. Otherwise, make a

thin, tight wrap.

Dip the wrapped lens tissue in the

cleaning solution, and wipe the

eyepiece from the center towards

the periphery in a circular motion.

Important notes:

1) Never rub the lens surface strongly.

2) Do not use the same lens tissue to clean more than one lens .

3) Do not moisten the lens tissue with an excessive amount of cleaning solution.

4) When cleaning with tweezers, be careful not to protrude its tip from the lens tissue.

BX2 MAINTENANCE MANUAL MAINTENANCE PROCEDURE

- 6-

3. Preparing for inspection

ADJUSTMENT OF KOEHLER ILLUMINATION

1) Set the main switch “A”to “I”(ON) and adjust the brightness by turning the adjustment knob “B”.

2) Set the light path selector knob “C”to the pushed-in position.

(Pushed-in position: Binocular 100%, Middle position: Binocular 20% Photo/TV 80%,

Pulled-out position: Photo/TV 100%)

3) Place a specimen on the stage.

4) Engage the 10X objective in the light path.

5) Turn the condenser height adjustment knob “D”to raise the condenser to its upper limit.

( When using the U-SC3 swing-out condenser, move the top lens into the light path.)

6) Looking through the eyepiece in the right sleeve without the diopter adjustment ring, turn the

coarse and fine focus adjustment knobs to bring the specimen into focus.

7) Looking through the eyepiece in the left sleeve with the diopter adjustment ring, turn only the

diopter adjustment ring “E”to focus on the specimen.

(At this time, adjust the interpupillary distance so that the binocular visions on the left and

right fields of view coincide completely.)

8) Turn the field iris diaphragm ring “F”in the direction of the arrow so that the iris diaphragm image

comes inside the field of view.

9) Manipulate the condenser height adjustment knob “D”to focus on the iris diaphragm image. (See Fig.1)

10) Turn the two condenser centering screws “G”to move the iris diaphragm image to the center

of field of view. (See Fig. 2)

11) Gradually open the field iris diaphragm. The condenser is properly centered if the iris diaphragm

image is centered and inscribed in the field of view. (See Fig.3)

(During actual use, open the field iris diaphragm slightly until its image circumscribes the field

of view. See Fig.4)

Reference: Since the contrast of microscope specimens is ordinary low, setting the condenser

aperture iris diaphragm to between 70% and 80% of the N.A. of the objective in use

is usually recommended. If necessary, adjust the ratio by removing the eyepiece

and looking into the eyepiece sleeve while adjusting the aperture iris diaphragm ring “H”.

OL YMPUS

BX51

PRE-SET

Fig.1 Fig.2 Fig.3 Fig.4

Field iris

diaphragm image

BX2 MAINTENANCE MANUAL MAINTENANCE PROCEDURE

- 7-

4. BX2 inspection sheet

MODEL : CHECK DATE :

S/N : CHECKING BY :

CHECKPOINT CHECK CONTENTS RESULT REF.PAGE

1)When the power switch is turned on, the lamp is lit

and the brightness can be varied by adjustment knob. OK / NO 18, 19, 20

2)When the light preset switch is set ON, the previously

set voltage can obtained regardless of brightness

adjustment knob position. OK / NO

1. Electrical unit

3)The voltage of light preset switch can adjusted in a

prescribed range. OK / NO

1) The coarse/fine focus adjustment knob is smoothly

moved without tightness or unevenness. OK / NO 17

2) The tension of coarse focus adjustment knob can be

adjusted by the adjustment ring. OK / NO

2. Coarse/fine focus

adjustment knob

3) The coarse upper limit lock is effective. OK / NO

1) The stage is fixed by the clamping screw. OK / NO

2) The stage can be rotated clockwise or

counterclockwise while holding the clamping screw

after the screw is loosened. OK / NO

3) The stage should not fall spontaneously. OK / NO

4) A specimen is held securely by the specimen holder. OK / NO

3. Stage

5) The X/Y movement is smooth without unevenness,

backlash or slipping.OK / NO 14, 15, 16

1) The interpupillary distance adjustment can be

operated smoothly in working range. OK / NO

2) When changing the interpupillary distance,

the displacement of optical axis is not apparent. OK / NO

3) The diopter adjustment ring is moved smoothly

in working range. OK / NO

4) The optical axis of left side coincides with that of right

side. OK / NO 11, 12, 13

5) The light path selector knob is moved smoothly. OK / NO

6)The tilting angle is easily adjusted and its angle

is stable. (U-TBI / U-ETBI only) OK / NO

4. Observation tube

7) When changing the tilting angle, the optical axis

displacement is not apparent. (U-TBI / U-ETBI only) OK / NO

5. Revolving

nosepiece 1) The revolving nosepiece can be rotated smoothly

and stops at the click position. OK / NO

1) The vertical movement of condenser is smooth. OK / NO

6. Condenser

2) The centering of field iris diaphragm can be adjusted in

a movable range with the condenser centering knobs. OK / NO

7. Illumination 1) The field/aperture iris diaphragm ring is moved normally. OK / NO

1)Observation image is normal.

Without flares /ghosts / vignetting /uneven illumination OK / NO

2)When photographed, there is no unevenness or

shading on the film surface. OK / NO

8. Visibility

(Observation)

3)Dust and dirt are not noticeable in observation or

photomicrography. OK / NO 8, 9

Remarks:

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