Mooney M20B - Page 73

BATTERY,
Continued
tL3’
TROUBLE
CAUSE
I
REMEDY
Charging
rate
too
high.
Adjust
voltage
regulator.
Battery
freezes.
Discharged battery.
Replace
battery.
Water
added
and
battery
Always
recharge
battery
for
H’ho~,-
not
charged
immediately.
follc~ing
addition
of
water
in
freez-
ing
weather.
Leaking
battery
jar.
Frozen.
Replace battery.
Battery polarity
reversed.
Connected backwards
on
Battery
should be
slowly
discharged
airplane
or
charger.
~I
completely
and
then
charged.cor
rectly
and
tested.
Battery
consumes
excessive
Charging
rate
too
high
tin
Correct
charging
rate.
water.
I
all
cells).
Cracked
jar
tone
cell
only)
Replace battery.
GENERATOR
Generator
operating
with-.
I
If
thevoltage
is
low,
gen-
Check
for loose
or
high-resistance
in
rated
speed
range
but
erator
is
operating
on
resi-
connections;
clean
and
tighten.
voltage
output
low. dule
magnetisa
Loose
or
high-resistance
Clean and
tighten
all
electrical
electrical
connections.
connections.
Brushes
excessively
worn.
When
brush
wears
down
to
H
inch,
replace
with
new
one.
Cautioi´•1:
Do
not
use
abrasives
of
any
description
in
seating
brusl~es.
Brushes
binaing
in the
The
brushes should
be
a
free
fit
with-
brush
box
I
out
excessive
side
play
in the brush
boxes.
Binding
brushes
and
brush
boxes
should
be
wiped
clean
with
a
cloth moistened
in
Varsd
or
undoped
gasoline.
Excessive
side
play
of
Replace
the brushes
outlined
above.
brushes
in
brush
box
I
Brushes
not
properly
Reseat brushes
as
outlined’above.
seated.
Low
brush
spring
tension.
Brush
spring
should
bear
centrally
on
top
of
the
brushes,
insuring
full
brush
contact
with
the
face
of
the
commutators.
Dirty
commutator.
Clean
the
commutator
with
a
cloth
moistened
in
rarsol
or
undoped
gasoline.
"9-
OLDWILLWAYNE