Piper Cherokee 140 - Page 20

SECTION
tr
THE
PIPER
CHEROKEE
sorles.
Circult
provlslons
are
made to handle
optlonal commun-
lcatlons
and navlgational
equipment.
In
conventlonal generator
systems,
the ammeter
indicates
battery
discharge. In the Piper
FullTime Powerelectrlcal
sys-
tem,
the ammeter displays
the
load
in
amperes
placed
on
the
system
at
any given
time.
Wtth all electricalequlpment
except
the
master switch
in
the
"OFF"
positionr
the ammeter
will
in-
dicate
the
amount ofcharging
current
demandedby
the battery.
This
amount will
vary
and depends on
the
percentage
of
full
clørge
on
the battery at
tåe
time.
When
the banery
becomes
charged,
the
current
dlsplaeed
on
the
ammeter
will
reduce
to
a
mlnimum
value
of about
two
amperes.
As
each unit of elec-
trical
equlpment
ls
swltched
on the
amount
of
current ir draws
will be shown on
the ammeter.
The
maximum
cqltlnuous load
for
nlght flight
with
all
equipment on
is approximately thirty
amperes,
Thts thlrty
ampere
s
plus
approximately
two amperes
for the
futly
charged
batterywill
appear conriouously
under these
flight
condittoos.
Because
of the
mechanical simpliclty
of the
alternator,
matnteoance
should
prove
to be a minor factor
as compared
to
prevlous
systems. Should
service
be
requlred,
contact
your
local
Piper
dealer.
HEATING AND
VENTII.ATING
SYSTEM
Heat
for
the cabln lnterlor
and the
defroster
system is
pro-
vided
by
a heater muff attached
to the
exbaust system.
Con-
trols
fof
these systems are
locatedon the lower
right
hand side
of the
instrument
panel.
A
third
confrol in this
area
regulates
a
large
fresh
air vent located on the
left hand
stde of the
cabin
near the
pllot's
feet. In addition, two side
vents
are
provided
one
at each
seat
location.
Th"y may
be
tndependentlyregulated
as
desired by
the seat occupant.
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