Olympus X-Tr Operating instructions

OLYMPUS
TRINOCULAR
STEREO
MICROSCOPE
~LX-Tr
REPAIR
MANUAL
o·LYMPU.S

P R E F A C E
The
functions
of
a
microscope
can
be
analyzed
into
the
mechanical
and
optical
systems.
To
those
who
are
engaged
in
line
of
microscope
repair,
it
is
a
self-
evident
truth
that
if
the
optical
system
is
not
correctly
adjusted,
the
fundamental
function
of
the
microscope
may
be
lost.
Among
the
various
types
of
microscopes,
the
stereo
microscopes
such
as
the
OLYMPUS
Stereo
Microscopes
Models X and X-Tr
require
most
difficult
and
complicated
tech-
niques
to
repair.
Prior
to
repair
of
them,
read
this
manual
and
make
yourself
familiar
with
these
models
so
that
you
can
find
what
parts
are
defective
and
degrees
of
their
damages.
In
case
of
the
Models X
and
X-Tr
it
is
necessary,
first
of
all,
to
find
out
what
lens(es)
or/and
prism(s)
is(are)
the
cause(s)
of
the
microscope
mulfunction.
Checks
and
repairs
of
these
models
should
be
carried
out
in
the
following
orders:
1.
Porro
prisms
2,
Parfocality
of
drum
lenses
3.
Total
deviation
of
drum
lenses
4.
Optical
axes
of
left
and
right
fields
of
view
Each
of
these
4
items
can
be
checked
and
repaired
individually.
However,
if
you
observe
a
double
image
through
the
binocular
observation
tube,
for
instance,
the
optical
axes
of
the
left
and
right
fields
of
view
are
not
coincided,
simultaneous-
ly
and
totally
due
to
the
items
1,
3,
and
4
mentioned
above,
These
3
steps
must
be
repaired
in
the
order
1-3-4,
You
cannot
change
this
order,
because
if
you
complete
steps
3
and
4
prior
to
step
1,
you must
repeat
checks
and
repairs
steps
3
and
4
after
completing
step
1.
If
you
get
skilled
in
repair
of
the
Model X
and
X-Tr,
the
optical
adjustments
of
the
other
OLYMPUS
Stereo
Microscopes
except
the
Model
SZ-III
become more
easier
because
they
are
of
the
same
optical
system.
(Your comments
are
welcome on
this
manual
for
improvements
of
other
manuals.)

C 0 N T E N T S
A.
SEQUENTIAL
PROCEDURE
OF
DISASSEMBLY
••••••••••••••••••••••••••••••••••••••••
2
1.
Disassembly
of
Focusing
Mechanism • • • •• •. • • . • ••• •• .
•••.•••.•••.•••
2
2.
Disassembly
of
Main Body and Lens
Drum
•••••••••••
•••••••••••••.•••.••
2
3.
Disassembly
of
Objective
Mount • • •• • • . • . •• •
•.••.•.•.•••.•.•••.••••.•••••
4
4.
Disassembly
of
Prism
Mount
.••..............................•...••...•.....
4
5.
Disassembly
of
Trinocular
Tube
••••••••••••••••••·•••••••••••••••••••••••••
6
B.
SEQUENTIAL
PROCEDURE
OF
OPTICAL
ADJUSTMENTS
..••••••••••••••••••••••••••••.••
8
1.
Tools
and
Test
Plate
•...•...................•..••..•....•..•••..••..•
• • • • • 8
2.
Porro-prism
Cent
ration
.•.•••••..............•....•..•..•.•....••.•.•.
• • • • • 8
3.
Adjustment
of
Click
Spring
•••.•.••••••••••.••.••••••••••••••.••••••
• • •• • •
•10
4.
Focusing
of
Drum
Lenses
in
the
Right
Field
of
View
••••••••·•••••••••••••••11
5.
Centration
of
Drum
Lenses
in
the
Right
Field
of
View
•••••••••••·•••·••••••12
6.
Adjustment
of
Left"
Diopter
••••••••••••••••••••.•••••.•••••••••..••••
• ·
••
••15
7.
Centration
and
Focusing
of
Drum
Lenses
in
the
Left
Field
of
View
••••••••••16
8.
Attachment
of
Dust
Glass
•••••••••••••••••••·•••••••••••••••·••••••••••••••17
9.
Coincidence
of
Right
and
Left
Optical
Axes
•••···•·················••••·•••17
10.
Mounting
of
PM-6
••.•••...•.•••...••••..•.•..•.••••••..•••..••.•
• •
•••
• • • • •
•18
11.
Focusing
of
Phototube
Objectives
••·········••••••••••••••••••••·••••••••••18
12.
Centration
of
Drum
Lenses
for
Phototube
•••••••••••••••••••••••••••••••••••19
13.
Coincidence
of
Optical
Axes
through
Phototube
and
Binocular
Tube
•••••·····19
14.
Mounting
of
Dust
Glass
and Covers
••••••••••··············•••••••••••••••••20
C.
PRACTICAL
POINTS
OF
REPAIRS
•.••••••••••••••••••••••••••••••••••••••••••••••
21
1.
Sticking
on
Abrasive
Surfaces
of
Focusing
Mechanism
••.•••••••.••••••••••••
21
2.
Chatter
on
Abrasive
Surfaces
of
Focusing
Mechanism
••••••••••••••.•••••••••
22
3.
Defective
Rack
and
Pinion
of
Focusing
Mechanism
•••••••••••••••••••••••••••23
4.
Heavy
Rotation
of
Focusing
Knob
...•••.••••••••..•••••••.••••••••••••
26
5.
Heavy
Rotation
of
Helicoid
Rings
•••
·•••···········••••••••••••••••••••••26
6.
Defective
Binocular
Vision
••••••••.••••...••••••••.•••••••••••••••••••••••
28
- 1 -

Fig.
1
0
AA 0738
1-.3)
Z-S)
AA 6207
z-S)
AA 4866

A.
SEQUENTIAL
PROCEDURE
OF
DISASSEMBLY
(See
Fig.
1)
1.
Disassembly
of
Focusing
Mechanism
1-1)
Rotate
focusing
knobs
until
main body
goes
up
as
well
as
possible.
1-2)
Unscrew
~038
that
can
be
seen
in
dovetail
block
AA4869.
1-3)
Disengage
metal
block
AA0738
from
dovetail
AA4869.
Rotate
focusing
knobs,
and
lower
main
body so
that
rack
and
pinion
are
disengaged,
and
pull
out
metal
block.
1-4)
Remove
focusing
knobs AA0005.
Holding
both
of
focusing
knobs
in
both
hands,
rotate
them
in
the
oppo-
site
directions
simultaneously
so
that
they
are
loosened.
When
they
are
completely
loosened,
focusing
knob
AA0005
and
nut
AA0008
are
disengaged.
1-5)
Pull
out
pinion
from
bearing.
As
you
pull
out
focusing
knob
AA0006
in
the
axial
direction,
pinion
can
be
pulled
out.
1-6)
Unscrew two
CMK4x20SA
and
pull
out
block
AA4869
from
main
body.
2.
Disassembly.
of
Main Body and Lens
Drum
2-1)
Unscrew
four
CMK3xl0SA
and
pull
out
fixing
guide
AA4947.
2-2)
Unscrew two
SK1.4-21,
and remove
cover
plate
AA4948.
2-3)
Remove
three
glass
discs
LP0387.
Prior
to
removal,
immerse
three
glass
discs
with
a
little
amount
of
alcohol
for
a few
minutes,
because
these
discs
were
shellaced,
then
stick
them
to
Scotch
tape
to
remove
with
ease.
2-4)
Unscrew two
HK2x4SA,
and
remove
click-spring
AA4858.
2-5)
Unscrew
left
knob AA4861.
After
removal
of
screw
AA4866,
insert
a
small
screwdriver
through
empty
hole
to
loosen
setscrew
AA6207.
Knob
can
be
removed.
- 3 -

2-6)
AA
4863
{
HK2X4SA_/
3-1)
/
AA
4956
Fig.
2

(See
Fig.
2)
2-6)
Unscrew
four
HK2.6x5SA and remove
bearing
AA4863.
2-7)
Disassemble
right
knob
AA4860
from
bearing
AA4862
in
the
same manner
as
above.
2-8)
Pull
out
lens
drum.
3.
Disassembly
of
Objective
Mount
3-1)
Unscrew
four
HK2x4SA
and remove
objective
cover
AA4956.
3-2)
Unscrew
four
HK2.6xl5SA and remove
adjusting
washer
AA4954.
3-3)
Unscrew
objectives.
Unscrewing NU2.6x5SA and NU2.6x8SA, remove
retaining
frame AA4876.
When
this
frame was
shellaced,
immerse
it
with
alcohol
for
a few
minutes
prior
to
removal,
then
loosen
it.
Objective
frame
AA4955
can
be
removed
'r..-J
'"lt:!ruuv'.mg
"t:wo
screws
""Hl("Lx4BB.
4.
Disassembly
of
Prism
Mount
4-1)
Unscrew
four
HK2.6xl2SA, and remove
prism
mount
AA4949
and
plate
AA4953.
4-2)
Unscrew
four
3PUK1.
7x3SA
and remove two
P-holders
AA4871.
4-3)
Unscrew two HK1.4x2.5Sli, and remove
P-holder
AA4952.
4-4)
Loosen
three
HU2x4SA,
and
then
remove two
prisms
LP0386,
prism
LP0392
and
three
side
plates
AA3399.
- 5 -

•
S-ltJ)
•
AA
4968
S-!O)AA
4886
5-9)
AA
4962
AA 6203
5-13)
{ 0
AA 0722
5-/)
AA
4906
Cli)...
8
AA 4892
5-15)
HK
1.7
X
4Sj
5
_.3)
SK1.7X4SA
AA
12871~
AA 4078 )

(See
Fig.
3)
5.
Disassembly
of
Trinocular
Tube
5-l)
Unscrew
left
eyepiece
tube.
Insert
flat-tip
divider
into
eyepiece
tube,
and
rotate
nut
AA4906
counter-clockwise.
5-2)
Unscrew
three
PQK1.7x3.5SA, and
cover-L
AA4903.
5-3)
Unscrew
three
SK1.7x4SA, and OC-mount-L
AA4901.
5-4)
Disassemble
porro-prism.
Unscrew
three
NU2.6x6SA
and
take
out
prism
mount-L
AA4895.
Unscrew
four
PUK2x4SA,
porro-prism,
pressing
plate
AA4077,
plate
AA1287
and
plate
AA4078.
5-5)
Disassemble
right
porro-prism
in
the
same manner
as
above
with
the
exception
that
eyepiece
tube
is
unscrewed by
rotating
it
counter-clock-
wise.
5-6)
By
rotating
counter-clockwise,
remove
upper
part
of
phototube
including
inner
sleeve
AA4964
and above.
5-7)
Unscrew
two
PQK1.7x3.5SA, and remove
cover
AA4963.
5-8)
Unscrew
two
HK2-242SA, and remove
F-frante
AA4966.
5-9)
Unscrew
four
HK2-242SA
and remove
dovetail
AA4962.
5-10)
Unscrew
four
HK2-342SA
and remove
washer
AA4886.
5-11)
Unscrew
four
HK3x4.
5
SA
and remove
holding
block
AA4960.
5-12)
Unscrew
nut
AA4145
by
rotating
it
counter-clockwise
with
round-tip
divider.
5-13)
Unscrew two
HK
AA6203
on
right
and
left
sides
respectively.
5-14)
Remove
belt
AA4896.
5-15)
Remove
prism
housings
AA4891
and
AA4892,
by
pulling
them from
holding
block
AA4960.
5-16)
Unscrew
four
HK2x3BB,
and remove
two
prism
holders
AA4899.
5-17)
Unscrew
four
HU2x3SA,
and remove
two
prisms
LP0388 and two
side
frames
AA0255.
5-18)
Disassemble
phototube.
a.
Rotate
cover
AA4970.
b.
Loosening
three
NU2.6x3.5SA, remove
inner
sleeve
AA4964.
c.
Unscrew
3PUK2x4SA,
and remove
eyepiece
tube
AA4968.
- 7 -

B.
SEQUENTIAL
PROCEDURE
OF
OPTICAL
ADJUSTMENTS
1.
Tools
and
Test
Plate
a.
Eyepiece
with
cross
hairs
GlOX
b.
Focusing
telescope
c.
Screwdrivers
d.
Dividers,
flat
and
ball
tips
e.
Photomicrographic
equipment Model
PM-6
f.
Shellac
(adhesive)
g.
Test
plate
with
5/100
concentric
circles
2.
Porro-Prism
Centration
*
Porro-prisms
should
be
centered
within
a
range
of
interpupillary
distance.
Working
Steps
2-1)
Remove
right
and
left
eyepiece
tubes.
2-2)
Remove
covers
AA4902
and AA4903.
2-3)
Mount
right
and
left
eyepiece
tubes.
2-4)
Mount main body on
stand
and
place
test
plate
(5/100
concentric
circles)
on
stage.
Set
test
plate
in
position
with
stage
clips.
2-5)
Insert
eyepiece
with
cross
hairs
GlOX
into
right
eyepiece
tube.
2-6)
Set
drum
lens
40X
into
position,
and
bring
concentric
circles
into
focus.
Coincide
cent~rs
of
concentric
circles
and
cross
hairs
of
eyepiece.
- 8 -
Remarks
2-4)
I •
Test
Plate
(5/100
concentric
circles)
2-6)
Concentric
circles
Cross
hairs
Centered
•
x~5tZ