TM 5-5420-226-20-1
—
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-27
VEHICLE
OPERATION
- HULL POWER
T
(Continued)
n
~Check front accessory harness connector (CKT 459A)
at reverse polarity protection device for electrical
nawer.
Second Technician
(Operator’s Station)
l
First
l
l
l
Set MASTER
BATTERY
switch OFF.
Technician
(Commander’s
Station)
Reconnect reverse polarity protection device to master
relay.
Disconnect
front accessory harness connector
(CKT
459A) from reverse polarity protection
device.
Connect red probe of meter to center contact of front
accessory harness connector
(CKT 459A) and black
probe to ground.
Second Technician
(Operator’s Station)
l Set MASTER BATTERY switch ON.
First Technician
(Commander’s
Station)
l Check if meter indicates 18 to 30 volts dc.
Does meter indicates 18 to 30 volts dc?
I
CKT 4’59A
)
l Replace reverse polarity
protection
device (page 10-139).
TA107O66
4-377
