Olympus OM-1 - Page 36

E-35
ed,
it
does
not
reach
the
topmost
position.
9.
Even
when
the
mirror
is
rais:
the
MU
knob
gets
heavy
toward
the
end
of
During
mirror-up
operation,
its
motion.
1)
Improper
selection
of
the
MU
ring
Make
a
proper
selection
of
the
MU
ring
to
satisfy
the
requirement
cited
in
the
Checkup
column
below.
CA8451
MU
ring
(outer
diameter
2.80)
”
(
M
CAB452
3.1
САВ453
А
(
e
3.40)
САВ549
Ы
(
a
3.76)
(1)
While
the
mirror
is
at
the
original
lowered
position,
there
should
be
a
space
of
0.2
or
above
between
the
tip
of
8486
and
the
MU
ring.
(2)
During
the
mirror-up
operation,
the
mirror
should
be
in
such
a
position
that
its
tip
touches
the
damper
and
presses
at
accurately.
(3)
The
MU
knob
should
operate
smoothly
and
should
not
get
heavy
toward
the
end
of
its
motion.