TM 5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
VEHICLE
OPERATION
- HULL POWER
Symptom-28
NO POWER
IN VEHICLE
(MASTER
BATTERY
INDICATOR
LAMP WILL NOT
~
WARNING
—
Use extreme care when working with
circuit 49. This circuit carries battery
voltage at all times, whether MASTER
BAITERY
switch is ON or OFF.
I
This procedure is to be performed by
two
persons.
The
lead person
is
referred to as the first technician and
I
shall direct the activity of the second
person called the second technician.
Check CKT 49 at slave receptacle
for electrical
power.
+HF
/
TO VEHICLE
GROUND
t
I
First Technician
(Commander’s
Station)
I
I
l Displace protective cap from one slave receptacle.
I
l Set multimeter to measure 18 to 30 volts dc, or use STE/
ICE Test No. 89 (page 4-81).
E
WARNING
&
Do not allow red probe of meter to
touch positive (+) contact and outer
surface of slave receptacle
at the
same time.
(
1
/
I
l Connect red probe of meter to positive ( + ) contact
(CKT 49) of slave receptacle and black probe to
4
SLAVE
RECEPTACLES
(CKT 49)
b
//
[;
.
I
ground.
l Check if meter indicates 18 to 30 volts dc.
~
Does meter indicate 18 to 30 volts dc?
9
i%%
FOR CLARITY
QUADRANT
-
ASSEMBLIES
NOT SHOWN
(
.
l Service batteries (page 10-258).
l Charge batteries (TM 9-8140-
200-14).
l Install
slave
receptacle
protective
cap.
I
TA107O71
4-382
