Olympus CX21 User manual
Maintenance Manual
for maintenance engineer
CX21
Thank you for purchasing the Olympus microscope CX21.
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.
All rights reserved, Reproduction in whole or in part without written permission is prohibited.
CX21 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
Eyepiece, objective ,
condenser lens, filter,
2) Inner part Prism,
internal lenses
Appearance
Microscope frame,
mechanical part
Observation tube
Mechanical part
Focusing unit, stage,
revolving nosepiece,
aperture iris diaphragm
*
*
*
*
Optical adjustment :
1) Optical axis (standard)
2) Left/right optical axis
3) Revolving axis
4) Parfocality
*
Mechanical movement :
Grease replacement
Mechanical adjustment
Once in a year
(If dirt is conspicuous or oil
immersion objec tive is used,
cleaning should be made after
every use.)
Once in a year
Once in a year
(If dirt is conspicuous, cleaning
should be made after every
use.)
Once in a year
Once in two to three years
CX21 MAINTENANCE MANUAL
CONTENTS
CHAPTER 1 MAINTENANCE PROCEDURE........................................................................ 1
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. CX 21 Inspection Sheet...................................................................................................7
CHAPTER 2 INSPECTION PROCEDURE............................................................................. 8
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.....................................................................................11
1. Optical Adjustment ........................................................................................................11
2. Mechanical Adjustment................................................................................................. 14
2-1 Preparation for the tension adjustment of X/Y-wire................................................ 14
2-2 Adjustment method for the tension of X -wire.........................................................15
2-3 Adjustment method for the tension of Y-wire......................................................... 15
2-4 Final adjustment................................................................................................... 16
3. Replacing Grease for Coarse/Fine Adjustment Knob Ass’y........................................... 17
4. Replacing Circuit Board................................................................................................ 18
4-1 CX 21 wiring diagram............................................................................................ 18
4-2 Replacement of circuit board / socket................................................................... 18
5.
Replacing Pinion Ass'y of Plane Stage......................................................................... 19
CHAPTER 4 JIGS AND TOOLS / GREASES ..................................................................... 20
1. List of Jigs and Tools.................................................................................................... 20
2. List of Greases............................................................................................................. 20
CHAPTER 5 MAINTENANCE PARTS................................................................................... 1
1. List of Maintenance Parts............................................................................................... 1
CX21 MAINTENANCE MANUAL MAINTENANCE PROCEDURE
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.
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
Temperature
Dry blue aspergillus
Degree(C)
40
30
Humidity
%
60 70
- 1 -
80
Aspergillus
20
10
90
100
CX21 MAINTENANCE MANUAL MAINTENANCE PROCEDURE
with the soft brush. If there are stains on
Remove the eyepieces and objectives,
solution. (When removing the objective,
Wipe off any dirt spots on the surface of
Take off the mechanical stage from the
Clean the surface of stage and filter on
2. Guide to Maintenance
2-1 Overview of maintenance
1)
100
Set your correct interpupillary distance.
Note any areas suggesting a need for
mechanical and/or optical maintenance
by operating it or observing a specimen.
4)
(A)
Turn knob (A).
Remove it from groove.
Filter
( plastic )
Remove the condenser downward.
top lens, filter. The plastic parts should
be cleaned with netural detergent.
OLYMPUS
CX21
110
120
130
140
150
160
17
30
20
10
0
Top lens
(glass)
Plastic
7)
2)
100
Sweep off dust on the outer surfaces
the microscope frame, clean them with
neutral detergent.
5)
Plastic
75
70
60
50
100
110
120
130
140
150
160
17
30
20
10
0
glass
plane stage by removing two screws.
the base cover.
OLYMPUS
110
CX21
120
130
140
150
160
17
30
20
10
0
OLYMPUS
CX21
8)
3)
Loosen the screw securing eyepiece.
75
70
60
50
100
OLYMPUS
110
CX21
120
130
140
150
160
17
30
20
10
0
then clean their lenses with cleaning
use the rubber band.)
6)
75
70
60
50
100
110
120
130
140
150
160
17
30
20
10
0
OLYMPUS
CX21
Mount the removed components and
mechanical stage to the frame.
9)
100
OLYMPUS
CX21
110
120
130
140
150
160
17
30
20
10
0
Polish all plastic components and the
frame with silicon cloth.
Tool required:
Lens tissue Neutral detergent
(For plastic part or
frame)
100
OLYMPUS
CX21
110
120
130
140
150
160
17
30
20
10
0
Return the interpupillary distance to
original condition and prepare for the
inspection. (see page 6)
Cleaning solution
(For lens or filter
etc.)
Cotton swab
or tweezers
etc.
- 2 -
100
110
OLYMPUS
CX21
120
130
140
150
160
17
30
20
10
0
Do a final check following the inspection
sheet in this manual. (See page 7)
Blower Silicon cloth
(For finishing)
CX21 MAINTENANCE MANUAL MAINTENANCE PROCEDURE
Put it on the desk
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 used by 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.
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.
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.
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 portion on
the periphery of lens can not be wiped off, clean
the lens referring the above figures, 1 to 4.
Wipe the objective lens
from the center
towards the periphery,
while rotating the lens.
- 3 -
CX21 MAINTENANCE MANUAL MAINTENANCE PROCEDURE
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.
1)
2) 3)
4)
Wipe the prism surfaces from front to backward at a stroke, applying even pressure.
5)
6)
- 4 -
CX21 MAINTENANCE MANUAL MAINTENANCE PROCEDURE
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.
- 5 -
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