Mooney M20B - Page 74

GENERATOR--Continued
TR3U31LE
CAUSE
I
REMEDY
Scored
or
pitted
Turn
down
commutator
or
replr,ce.
commutator.
’Shorted
or
open
armature
Replace
generator
or
armature.
coils,
Improper
operation
of
].ixljust
regulator.
voltage
regulator.
Generator
operating
with
Wiring
not
properly
in rated
speed
range~but
connected.
’I
See
electrical
system
wiring
diagram.
voltmeter
indicates
zero,
Unstable.operation
of the
Replace
voltage regulator.
TJse
Generator
operating
with-
voltage
regulator.
Same
remedy
under
"Generator
operating
in rated
speed
range,
but
as
"Generator
operating~
within rated
speed
range
but
voltage
voltage
output
is
erratic. within rated
speed
range output
lokr",
above.
but
voltage
output
low",
above.
Same
as
"Generator
oper-
Use
remedy
under "Generator
opar-
Excessive
sparking
at
ating
within
rated
speed
ating
within rated
speed
range
but
generator
b~shes.
range
but
voltage
output
voltage
output
low".
low,"
above,
Generator
with-
Generator
field
magnetiz-
Flash
field
with
a
jumper
wire
on
in
rated
speed
range
but
ed
in the
wrong
directian
regulator
between
generator
and
system
ammeter
reads
off
I ´•I battery.
scale.
System
ammeter
fluckiates
Generating
system
is
I
Check
the
system
for
abnormal
loads.
excessively
when
indicat-
overloaded.
ing
full
rated
load.
improper
operation
of
gen-
Re
adjust
to
operate
properly.
erator
reverse-current
relay,
Loose
connections.
I
Tighten
connectipns.
~Burned-outsystem
I Dischargedbattery.
Replace
with
fully
charged
battery.
ammeter
or
Line
fuse,
Defective
wiring.
I
Replace
all
defective
wiring.
S~AEiTER
Motor fails
to
operate.
Low
battery
charge.
Check
a~d
recharge
if
necessary.
Defectiveorimproperwir-
I
Refer
to
electrical
wiring
diagram
ing
or
loose
connections.
and
check all
wiring.
Detective
starter
solenoid
Replace faulty
unit.
i´•l.
or
control
switch.
PG-
OLDWILLWAYNE