Engine Not Running - Cessna T182 Series Service Manual

MODEL 182 & T182 SERIES SERVICE MANUAL
16-40. TROUBLE SHOOTING THE ALTERNATOR SYSTEM. (THRU 1978 MODELS.)
a. ENGINE NOT RUNNING.
TROUBLE
PROBABLE CAUSE
REMEDY
AMMETER INDICATES HEAVY
Shorted diode in alternator.
Turn off Battery Switch and re-
DISCHARGE OR ALTERNATOR
move "B" Lead from alternator.
CIRCUIT BREAKER OPENS.
Check resistance from "B"
(Battery Switch ON,
Terminal of alternator to alter-
Alternator Switch OFF,
nator case. Reverse leads and
all other electrical
check again.
Resistance reading
switches OFF.)
may show continuity in one direc-
tion but should show an infinite
reading in the other direction.
If an infinite reading is not ob-
tained in at least one direction,
repair or replace alternator.
ALTERNATOR REGULATOR Short in Over-Voltage
Disconnect Over-Voltage Sensor
CIRCUIT BREAKER OPENS sensor. plug and recheck. If circuit
WHEN BATTERY AND
breaker stays in replace Over-
ALTERNATOR SWITCHES Voltage Sensor.
ARE TURNED ON.
Short in alternator voltage
Disconnect regulator plug and
regulator.
recheck. If circuit breaker
stays in, replace regulator.
Short in alternator field.
Disconnect "F" terminal wire
and recheck.
If circuit breaker
stays in, replace alternator.
ALTERNATOR CIRCUIT Defective circuit breaker.
Replace circuit breaker.
BREAKER OPENS WHEN
BATTERY AND ALTER-
NATOR SWITCHES ARE
TURNED ON, OVER-
VOLTAGE LIGHT DOES
NOT COME ON.
16-23