TM
5-5420-226-20-1
DETAILED
TROUBLESHOOTING
PROCEDURE
Symptom-5
1.1
SUPPORT
SYSTEM
- SMOKE
GRENADE
LAUNCHER
FROM STEP
(Continued)
o21
Check
firing
pin in left
discharger
barrel
number
3 for electrical power.
First
Technician
(Operators
Station)
l
Second
l
l
Press and hold LE~
button on pushbutton
unit.
Technician (Left Discharger)
Connect red probe of meter to pin in
bottom
of left
discharger
barrel
number
3.
Check
if meter
indicates
18 to
30 volts
dc.
First Technician (Operators Station)
l Release LEIW button on pushbutton unit.
Does meter
indicate
18 to 30 volts
dc?
)
l
Check
socket
F of har-
ness connector
at
pushbutton
unit for
electrical
power.
l
See step 53.
1
F*
GROUND
PIN
1 I
LEFT
DISCHARGER
TA248701
Change
1
4.554.13