Cessna T182 Series User Manual

MODEL
182
&
T182
SERIES
SERVICE
MANUAL
16-16. TROUBLE
SHOOTING
THE BATTERY
POWER
SYSTEM.
TROUBLE
PROBABLE
CAUSE
REMEDY
BATTERY
WILL
NOT
SUPPLY
Battery
discharged.
1. Measure
voltage
at "BAT"
POWER
TO BUS
OR IS
INCAP-
terminal
of battery
contactor
ABLE
OF
CRANKING
ENGINE.
with
master
switch
and
a suit-
able
load
such
as a
taxi light
turned
on.
Normal
battery
will
indicate
11. 5 volts
or more
on
a 14 volt system
or 23 volts
or
more
on a
28 volt
system.
If
voltage
is
low
proceed
to step
2.
If voltage
is
normal,
pro-
ceed to step 3.
Battery
faulty.
2. Check
fluid
level
in cells
and
charge 12-volt
battery at
14 volts
or
24-volt
battery
at
28 volts
for
approximately
30
minutes or
until battery
voltage
rises to 14 volts
on 12-volt
bat-
tery
or
28 volts
on 24-volt
bat-
tery.
If tester
indicates
a
good
battery, the
malfunction
may be
assumed
to
be a discharged
bat-
tery.
If the tester
indicates
a
faulty battery,
replace
the
battery.
Faulty contactor
or
wiring
3. Measure
voltage
at master
between
contactor
or
master
switch terminal
(smallest)
on
switch.
contactor
with master
switch
closed. Normal indication is
zero
volts.
If voltage
reads
zero,
proceed to step
4. If a
voltage
reading is obtained
check wiring
between contactor
and
master switch.
Also check
master
switch.
Open
coil on contactor.
4. Check continuity
between
"BAT"
terminal
and master
switch termi-
nal of
contactor. Normal
indication
on 14 volt
aircraft is
16-24 ohms.
Normal
indication
on 28 volt
air-
craft is
50-70 ohms.
If ohmmeter
indicates
an
open coil.
replace
con-
tactor.
If ohmmeter
indicates a
good coil,
proceed to step
5.
BATTERY
WILL NOT SUPPLY
Faulty
contactor contacts.
5. Check voltage
on "BUS"
side of
POWER TO BUS OR IS
INCAP-
contactor with master
switch closed.
ABLE OF CRANKING
ENGINE.
Meter normally
indicates battery
voltage
is zero
or intermittant.
replace contactor.
If voltage
is
normal. proceed to step 6.
Faulty wiring
between
contactor
6. Inspect wiring
between
con-
and bus.
tactor
and bus.
Repair or
re-
place wiring.
16-7

Cessna T182 Series Specifications

General

Engine Type	Lycoming IO-540-AB1A5
Horsepower	230 hp
Seating Capacity	4
Service Ceiling	18, 100 feet
Takeoff Distance	1, 600 feet
Landing Distance	1, 350 ft
Type	Single-engine
Max Takeoff Weight	3, 100 lb
Wingspan	36 ft
Length	29 ft
Height	9 feet 3 inches
Fuel Capacity	92 US gal (348 L)