Olympus VMF Repair Manual

9-10
Modification
of
Pinion
AA949800
Pinion
AA949800
is
modified
as
depicted below, thereby making
it
necessary
to
make
minor
changes
in Focusing
Inner
Knobs
AA921400
and
AA921300.
The new model
can
be
distinguished from the
old one by measuring the diameters
of
the thicker ends
of
the tapered sections
with
slide calipers.
As given in Figs. 76 and 77, the old model
has
the tapered section
with
the thicker
end
measuring
5.7 mm in diameter and the new one, 7.8 mm.
DESCRIPTION
(OLD)
(NEW)
Fig. 76
Fig. 77
NOTE:
Reason
of
modification:
Sometimes, the tension adjustment
of
the coarse focusing control does
not
work
well.
1.
In
case
the pinion
AA949800
be
found faulty, the coarse adjustment knob
AA921400
should
be
also replaced
as
new type coarse adjustment knob
has
the thread in the hole
of
knob.
2.
If
you
have
TAPER REAMER
KC-2001,
grind the inner hole
of
coarse
adjustment knob
AA-
921300
so
as
to
accept the new pinion
AA949800
which
is
widened
to
7.8 mm in diameter,
because
the old pinion
is
no longer available.
If
you do
not
have
TAPER REAMER KC-2001,
replace the coarse adjustment knob
AA921300.
-39-

Olympus VMF Specifications

General

Brand	Olympus
Model	VMF
Category	Microscope
Language	English