Battery Installation; Battery Cleaning - Raytheon BEECH BARON 58P Maintenance Manual

BEECHCRAFT
BARON
58P
MAINTENANCE MAN UAL
DC
GENERATION MAINTENANCE
CA UTION
PRACTICES
Always
remove
the
ground
cable terminal first
BA
TTERY
and install it last
to
prevent accidental short
circu its.
1
Two 25
ampere-hour, 12 volt,
lead-acid batteries connected
in series
are
installed,
supplying
a
total system capacity of
c.
Disconnect the POSITIVE cable terminal
and
24 volts. Access
to
the lead-acid batteries is obtained by position it
so
it will
not
interfere with the removal of the
opening the
forward baggage
compartment
door and
batteries.
removing the battery box
cover
in the floor of the d.
Remove the bus bar interconnect between both
compartment.
batteries.
e.
Remove each battery from the airplane.
I
The
batteries supply
power
for the
starter system
and the
electrical systems when the engines
are
not
operating. It BATTERY INSTALLATION
also
provides limited
power
to
an
alternate battery bus in
cases
of
emergency.
Baggage
compartment
lights and
a.
Position the batteries in the battery box.
courtesy
lights
are
operated directly
from the
battery. b.
Coat the battery
terminals and cable terminals with
a
light coating of
petroleum jelly.
The battery
box is vented overboard
to
dispose of the
c.
Position the
POSITIVE cable terminal
on
the
electrolyte and
hydrogen gas fumes
discharged during the
battery
and
secure.
normal
charging operation.
CA UTION
CA UTION
If the
POSITIVE
battery
terminal is
not
The
use
of
an
external ground
power
source
is marked POS
or
painted red and the
recommended
for
ground operation requiring
NEGATIVE
battery
terminal is
not
marked
battery
drain and starting
the airplane during NEG
or
painted black,
use a
voltmeter
to
cold weather.
determine the battery polarity
before
connecting the battery in the airplane. Reverse
BA TTE R Y MA
INTENA NCE PROGRA
M
polarity will destroy the diodes and other
electronic components in the electrical systems.
A
systematic battery
maintenance
program
should be
established
and carefully followed.
d.
Position the NEGATIVE cable terminal
on
the
battery and
secure.
I
a.
The batteries should be removed from the airplane
a.
Install bus bar
interconnect between both
for service.
batteries.
b.
A log
of the services performed
on
each
battery f. Remove
any excess
petroleum jelly from the
should be maintained, terminals.
c.
The battery
should be removed from the airplane
g.
Position the battery box
cover on
the
battery
and
and
serviced after: 100 flight hours
or
30
days,
whichever
secure.
occurs
first. If the
ambient temperatures
are
above
900F
or'
h. Closethe baggagecompartment
door.
the time
between engine
starts
averages
less than 30
minutes,
the duty cycle
should be
reduced.
BATTERY CLEANING
d.
The log of battery
services performed should be
evaluated
to
determine the need
to
service the batteries
at
For peak performance,
the batteries
must
be kept clean and
the above
recommended
intervals
or
to
extend the intervals
dry.
If foreign materials
are
present
in sufficient quantities,
if justified. Accurate
water
consumption data is
a
valid the resultant deposits
may
form conductive paths
that
barometer to'
use
for adjustment
of the servicing intervals.
permit
a
rapid discharge
of the batteries. To
prevent
thel
collection of such deposits,
use
the following steps in
BATTERY REMOVAL cleaning
the batteries after each 100 hours of service
or
every
30
days, whichever
occurs
first:
a.
Open the forward baggage
compartment
door and
remove
the
battery
box
cover
in the floor of the
a.
Remove the batteries
as
described in the section
compartment.
BATTERY REMOVAL.
b. Remove the
NEGATIVE battery
cable from the
b.
Ensure that the
battery
cell filler caps
are
tight in
battery.
place.
Brush dirt off with
a
stiff bristle brush.
24-32-00
Page 201
Oct
3175