Complete
Teardown,
Cleaning,
and
Reassembly
of
the
Olympus
BH
‐
2
Sliding
Focus
Block
Revision
2
Page
18
of
23
Reinstall
the
Arm
onto
the
Base
Place
the
arm
flat
on
its
back
on
the
work
surface
with
the
bottom
facing
you
(see
Figure
55
).
Figure
55
–
Place
the
arm
flat
on
the
work
surface
Hold
the
base
of
the
stand
in
position
such
that
the
four
holes
in
the
base
align
with
the
four
tapped
holes
in
the
bottom
surface
of
the
arm
casting
(see
Figure
56
).
Figure
56
–
Align
holes
in
the
base
with
holes
in
the
arm
Use
a
5mm
Allen
wrench
or
driver
to
loosely
reinstall
four
M6x25
hex,
socket
‐
head
cap
screws
to
attach
the
arm
to
the
base
of
the
stand
(see
Figure
57
).
Figure
57
–
Attach
the
base
onto
the
arm
of
the
stand
Check
the
alignment
of
the
arm
(relative
to
the
base)
and
adjust
the
positioning
as
necessary
for
an
acceptable
cosmetic
appearance
at
the
interface.
Tighten
the
four
M6x25
screws
to
secure
the
arm
to
the
base
(see
Figure
58
).
Figure
58
–
Secure
the
arm
onto
the
base
of
the
stand
Reinstall
the
Electrical
Base
Carefully
lower
the
assembled
stand
over
the
electrical
base,
maintaining
proper
alignment
relative
to
the
electrical
base
(to
prevent
damage
to
the
optical
components
in
the
base)
until
the
stand
seats
onto
the
base.
If
the
electrical
base
contains
a
light
‐
preset
control/switch
(see
Figure
5
),
be
sure
to
reengage
this
into
the
notch
in
the
side
of
the
base
3
before
seating
the
stand
onto
the
electrical
base.
While
holding
the
electrical
base
in
place
so
that
it
does
not
shift,
lay
the
stand
onto
its
back
or
side
on
the
work
surface.
Use
a
4mm
(or
5/32”)
Allen
wrench
or
driver
to
reinstall
four
M5x12
hex,
socket
‐
head
cap
screws
and
associated
washers
to
secure
the
electrical
base
to
the
stand
(see
Figure
59
).
Return
the
assembled
stand
to
its
normal
upright
position.
Figure
59
–
Reinstall
screws
to
secure
the
electrical
base
3
Or
reconnect
the
two
electrical
connectors
to
the
printed
circuit
board.
