.A
ADJUSTMENT
7. Tube Length
7. Tube Length
1)
Attach the part @ of tool 125148 (Fig. 8) (P.
5)
to
the
tube attaching part, the part
®
to
the nosepiece, and the part @ to the
stage
a ttaching surface, respectively.
2)
Attach the trinocular eyepiece tube to the part
@.
Using
the
20X
eyepiece,
see
the interference colors
in
the
grating of
the
part
@.
3)
In
this case, the colors should
be
the
sarne
as
those
viewed
through the vertical tube.
lf
not, rotate cover
ring
e@])
(beforehand, dissolve
No.
350
by
alcohol)
of
the tube,
until the
sarne
colors
are
attained. Cement @ agam,
using
No.350.
-43
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