TM 5-5420-226-20-1
DETAILED TROUBLESHOOTING
PROCEDURE
Symptom-51.1
SUPPORT SYSTEM - SMOKE GRENADE LAUNCHER
FROM STE~
(Continued)
POWER CONTROL
BOX
Check socket A of harness connector at power
I
control box for electrical power.
1
First Technician (Operator’s Station)
I
l Remove harnesa connector from power con-
trol box.
l tinned
red probe of meter to socket A of
harness connector and black probe to ground.
l Set MASTER BA’ITERY switch ON.
I
l Check if meter indicates 18 to 30 volts dc.
I
JDoes meter indicate 18 to 30 volts dc?
.
(
L
)
l
Set MASTER BATTERY
switch OFF.
l
Replace smoke grenade
power control box (page
18.1-2).
@-
d
o-
0
n+ 0
TO VEHICLE
GROUND
1!
‘CY
DO
A
co
OE
TlSet MASTER BAT-
TERY switch OFF.
--i
l
Replace smoke grenade
NO
crew compartment
wiring harness assembly
P
[page 18.1-6).
TA248691
Change 1
4-554.3
