TO
OLYMPUS
MICROSCOPE
SERVICING
PERSONNEL
CH Series Microscope
is
widely
used
throughout
the
world
for
training
students and inspecting various
specimens. Since
this
microscope
is
frequently
operated
for
routine
microscopy,
it
is
to
be
often
repaired
at
your
shop.
Accordingly,
this
manual should
be
highly
helpful
for
servicing personnel.
As
you
know,
the coarse and fine adjustment mechanism
of
CH Series
is
nearly the
same
as
that
of
the
preceding BH Series.
The
servicing personnel having experience in repair
of
BH Series
can
therefore easily
repair CH Series.
However,
attention
must
be
paid
to
the
fact
that
CH Series
has
undergone
modification
of
its coarse adjust-
ment
guide, and accordingly
this
series
currently
uses
new and
old
types
of
coarse adjustment guides.
The
old and new types
of
the
current
CH Series can
be
discriminated
from
each
other
by
a vertical line
as
illustrated below.
The
old
one was switched
to
the
new one at
the
beginning
of
1979.
CHA-F
(Old type)
AA872000
Vertical
line marked
CHA-F-3
(New type)
AA819500
This
manual describes repairing procedures
for
the new
type
of
microscope
first,
and those
for
the
old
type
separately
at
the
last part.
CH Series adopts
the
binocular
tube
which
is
quite
the
same
as
that
of
the BH Series.
For
repairing pro-
cedures
of
the
binocular
tube, reference should therefore
be
made
to
the
repair manual
for
BH Series.
"R
ight
side" and
"left
side" used in descriptions denote those
as
seen
by
the
microscopist in his observing
position.
In
addition,
the mechanical stage
of
Model
IMT
is
nearly the
same
as
that
of
CH-MVR,
and
the
servicing
personnel should refer
to
this
manual.
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