TM 5-5420-226-20-1
DETAILED TROUBLESHOOTING
PROCEDURE
Symptom-51.1
SUPPORT SYSTEM - SMOKE GRENADE LAUNCHER
FROM STEP
(Continued)
%—
{
.—
.
Check firing pin in left discharger barrel number
1 for electrical power.
First Technician
(Operator’s
Station)
l
Second
l
l
Press and hold RIGHT button on pushbutton
unit.
Technician
(Left Discharger)
Connect red probe of meter to pin in bottom
of left discharger
barrel number
1.
Check if meter indicates
18 to 30 volts dc.
First Technician
(Operator’s
Station)
l Release RIGHT button on pushbutton
unit.
Does meter indicate 18 to 30 volts dc?
)
l
Check socket C of har-
ness connector at
pushbutton unit for
electrical power.
l
See step 67.
TO VEHICLE ~
GROUND
UNIT
LEFTDISCHARGER
TA248707
Change 1
4.554.19
