Battery Box Cleaning; Battery Servicing - Raytheon BEECH BARON 58P Maintenance Manual

BEECHCRAFT
BARON 588
MAINTENANCE MANUAL
CAUTION
at
all times and the electrolyte level checked
at
regular
intervals. Clean
fully charged batteries will provide
peakl
Never
use a
wire brush
or
brush with
a
metal performance.
Never add anything but distilled
water
when
construction for this
purpose as
short circuiting
adjusting the electrolyte level in the batteries. If electrolyte
or
other damage
may
result. is added each time the level in the batteries
are
low,
a
high
concentration of electrolyte
may cause
dissolution of the
I
c.
Scrub the batteries with
a
solution of ammonia
or
plates. Under high
temperature
conditions, this may be
bicarbonate of soda
lone
part
of
soda
to
a
gallon of
water),
indicated by the
presence
of black particles in the
This will neutralize
any
electrolyte sprayed
or
spilled
out.
electrolyte
of the affected cells.
CAUTION
NOTE
Entrance of
ammonia
or
soda solution into
a
Do
not
fill the batteries
over
one-half inch
battery
cell will neutralize the cell electrolyte.
above the separators.
Only
lead-acid
equipment
Never
use
solvents
to
clean the batteries, for
should be used when
servicing lead-acid type
these
may
damage
the
battery
case.
batteries.
d. Rinse the b~tteries with clear water, then sponge
off the
excess
water.
Allow the batteries
to
air-dry.
R E C H A H G ING
BA
TTERIES USING
e.
Wash the battery
filler
caps
with clean hot
water
AUXILIARY POWER
and
no soap,
then examine the
vent
holes in the battery
filler
caps
to
make
sure
they
are
clear. The
following steps should be used
in using auxilairy
power
f. Inspect the battery for cracks, holes
or
bu
m
spots.
to
recharge the battery:
Replace if necessary.
g.
Make
sure
that all batteries hardware is clean and
a.
Place
the battery
master
switch in the
on
position.
in good mechnical condition. b.
Place both alternator switches and
all electrical and
avionics equipment switches
in the off positions.
NOTE
c.
Connect the
auxiliary
power unit
to
the external
power
receptacle.
If additional cleaning of the battery terminals
and
cable terminal is required,
use a
wire brush
CA UTION
and brighten
up
the terminals
to
ensure a
good
electrical connection.
Make certain that
the battery switch is in the
on
position, all avionics and electrical switches
BATTERY BOX CLEANING
are
in the off
positions and batteries
are
in the
system
before
connecting
an
external
power
The
battery box is
vented overboard
to
dispose of
unit. This
protects'the
electrical voltage
electrolyte
and
hydrogen
gas
fumes discharged during
regulators and associated electrical
equipment
normal
charging operation. To
ensure
the disposal of these
from voltage transients (power fluctuations).
fumes,
the
vent
hose connections
at
the battery box should
be checked
frequently
for obstructions. The battery
box d. Set the output of the
auxiliary
power unit
at
27.0
should be washed
out
thoroughly and dried each time the
to
28.5 vdc.
battery is removed
and cleaned.
e.
Place the
auxiliary power unit in the
on
position.
BATTERY SERVICING
If the battery
master
relay will
not
close, the batteries mus~t
be removed from the
airplane for recharging. Check the
The batteries should be maintained in
a
fully charged
state
battery
master
relay control circuit for
a
malfunction.
"END"
24-32-00
Page 202
oct
3/75