vision microsystems VM1000 - Page 23

SECTION
I INSTALLATION
23
FUEL PROBE
ILLUSTRATION
NOTES:
The following
notes
should be
observed to
aid
in
the
proper
installation of the
probes.
See the drawing
in
ILLUSTRATIONS
section
and
your
aircraft
construction
manual for the
proper
techniques regarding
installation,
bonding, sealing and
laminating,
etc.
NOTE
1:
Mounting
flange
installation
(Metal
knurled flange)
For
composite aircraft,
the metal mounting
flange is
'potted'
into the
tank
close-out rib
at an angle
as dictated
by
probe
placement
in
the
tank. INSURE that
the flange
edges
are surrounded
by
a
generous
margin
of the
potting
and that 3 layers
of
laminate
are
laminated
over
the
potted
areas. This
is necessary
to insure
that the flange is
'fuel
tight', mechanically
rigid and
will
not
be
'cracked'
loose during
fuel
probe
installation
or
vibration
in
use.
Consult
your
aircraft
manual
for
proper
bonding
techniques.
For
metal
tanks,
the
mounting flange
is
a
weldable
aluminum
alloy allowing
many
attachment
options.
NOTE 2: Bushing
installation
(white
bushing)
The
probe
(if
longer
than
48 inches)
should
be
supported in
the
middle.
lnstall a
bushing in
the middle
rib
or baffle using the fuel
probe
as the alignment
guide.
Bond the bushing
to the nb
I
baffle
using the
techniques recommended
in
your
aircraft construction
manual.
NOTE
3:
End
support
(white
bushing)
The
probe
end must
be supported
if more than
4 inches of
length
remains after the last
support
point.
Position a bushing
near
the end
of
the
probe
so that the
edge
of the
probe
is approximately 118 ,nch
from
the wing
skin.
Secure
the bushing
at
the surface of the wing
using
potting
mixture.
Lay
up two layers
over
the bushing
while
the
potting
mixture
is still soft to
hold
the bushing
in
place.
Use the
bonding techniques
recommended
in
your
aircraft construction
manual.
5010002 REv F
VMIOOO
OWNERS
MANUAL