Cessna 402B 1973 - Deice Boot System Description

However,
the
main
tank
endurance will be
increased by
the
returned
fueI
Since
the auxiliary
fuel
tanks are
designed for
cruising
flight,
they
are
not
equipped
with
pumps
and
operation
near
the
ground
(below
1000
feet)
using
auxiliary
fuel tanks is
not recommended.
WING I.OCKER
FUEt
5Y5TEM
Optional
wing
locker fuel
tanks
(20
U.
S.
Gallons
usable on each wing)
are installed
in
t}te
forward
portion
of the
nacelle
wing lockers.
There
are no
separate fuel
selector controls for
the wing locker
fuel
tanks,
The
wing
locker
fuel is
pumped
directly
into the main
tanks with a fuel
traas-
fer
pump.
Indicator lights
mounted
on the instrument
panel
are illuminat-
ed by
pressure
switches to indicate
fuel
has
been
transferred
The
wing
locker
fuel should not be
transferred
until
there
is
180
pounds
or less in
the main fuel
tanks to
prevent
overflow of
the
main
tank
fuel
Fuel
should
be crossfed
as
required
to'maintain
fuel balance after
wing locker
fuel has
been
transferred.
NOTE
Wing
locker transfer pump
switches
provided
on the
instrument
panel,
energize
the wing
locker
fuel
trans-
fer
pumps
for
transferring fuel.
These switches
should
be
turned ON only
to transfer fueI
when
in
straight and
Ievel flight
and
turned
OFF
when
the indicator
lights
come
ON indicating
fuel
has been
transferred.
DEICE
BOOT
SYSTEM
OPERATING
CHECKIIST
Bef
ore
Enlering
Aircrofl
(1)
During
the
exterior
inspection,
check
the troots
for
tears,
abra-
sions,
and
cleanlifress.
Have
boots
cleaned
and any major
dam-
age repaired
befoie
takeoff.
During
Engine
Runup
(1)
Position
deice
switch
to ACTUATE
and
check inflation
and
deflation
cycles.
The
pressure
indicator
light
(amber
in
color)
should light
when
the
system
reaches
10
psl.
The
deice
svsrem
may
be recycled
as
soon as
the
light
goes
off, or as
required.
NOTE
The
deice
system
is
manually
controlled.
Every
time
a
deicing
icycle
is desired,
the
switch
must
be
positioned
to
ACTUATE.
The
switch
will instantly
spring
back
to
OFF,
hut
a
6 second
delay action
in
the switch
will complete
the deicing
inflation
cycle.
7-2