Specifications

CHEROKEE
SIX
.
3OO
FUEL
SYSTEM
The
standard
fuel capacity
of
the
Cherokee
Six
is
84
gallons,
all of which is usable except
for
approximately one
pint
in each of the four tanks.
The two
main inboard
tanks,
which
hold
25
gallons
each, ate
attached
to the wing
structure
with
screws and
nut
plates
and can
be
removed easily for service
or
inspection. The tip
tanks are constructed
of resin-impregnated
fiberglass,
and each
one
holds
l7
gallons.
When using less
than
the
standard
84
gallon
capacity
of
the tanks, fuel
should
be
distributed
equally
between
each
side. The
tip tanks
should always
be filled first,
and
fuel
from
the main
tanks
should be
used
first.
All weight
in
excess
of
3ll2
pounds
must
be
in
fuel
weight
only.
The
fuel
selector control
is
located below
the
center
of
the instrument
panel
on the sloping
face
of
the
control
tunnel. It has
five
positions,
one
position
corresponding to
each
of the four
tanks
plus
an OFF
position.
To avoid the accumulation
of
water
and
sediment,
the fuel
system should
be drained
daily
prior
to first flight and after refueling.
Each tank
is equipped
with an individual
quick
drain
located
at the
lower
inboard rear
comer
of
the
tank.
The
fuel strainer and
a system
quick
drain
valve
are located in the
fuselage at
the
lowest
p<irint
of
the
fuel
system.
It
is important
that the
fuel system be
drained
in the
following
manner:
l.
Drain
each
tank
through its individual
quick
drain
located
at
the lower
inboard
rear
corner
of the
tank,
making
sure
that
enough fuel has
flowed to ensure
the
remorral
of
all water
and
sediment.
2. Place a container beneath the
fuel
sump
drain
outlet located under the fuselage.
A
special
container is fumished for
this
operation.
3. Drain the fuel strainer by
pressing
down on
the
lever
located on the right side
o,f the
cabin
on the
forward
edge
of the
wing
spar
housing.
Move the selector
through the
following
sequence:
OFF
position,
left
tip,
left main,
right
main,
and
right
tip
while
draining
the
strainer.
Make
sure that
enough fuel
has flowed to
drain
the
fuel
line
between each tank outlet and the fuel strainer,
as well
as
the
strainer
itself.
With full
fuel tanks,
it
will take
approximately
I I
seconds
to drain all the fuel in one
of the
fuel lines from the
tip
tank to
the
strainer,
and approximately 6 seconds to
drain
all
of
the fuel
from
the line from either main
tank
to
the fuel strainer.
When
the
tanks
are
less
than
full,
it will take a few seconds
longer.
4. Examine
the
contents of
the
container
placed
under
the fuel sump drain outlet.
When
the
fuel flow
is free of
water and sediment, close
the drain
and dispose of the
contents of
the
bottle.
CAUTION
When
draining fuel, care
should
be taken to
ensure
that no fre
hazard
exists
before starting
the
engine.
After
using the
undeneat
quick
drain, check
from the
outside to make sure that
it has
closed
completely
and
is not
leaking.
AIRPLANE
A}.ID
SYSTEMS
REVISED:
DECEMBER
15. l9?t
L7