TM 5-5420-226-20-1
DETAILED TROUBLESHOOTING
PROCEDURE
Symptom-5 1.1
SUPPORT SYSTEM - SMOKE GRENADE
LAUNCHER
(Continued)
I
‘ Check socket A of harness connector at right
discharger for electrical power.
First Technician (Operata% Station)
l Set MASTER BATTERY switch OFF.
Second Technician (Right Discharger)
l Disconnect harness connector from right
discharger receptacle.
First Technician (Operator’s Station)
l
l
Second
l
l
Set MASTER BA’ITERY switch ON.
Preae and hold RIGHT button on pushbutton
unit.
Technician (Right Discharger)
Connect red probe of meter ta socket A of
harness connector and black probe to ground.
Check if meter indicates 18 t.a30 volts dc.
First Technician (Operatcr’s Station)
l Release RIGHT buttcn on pushbutton unit.
Doss meter indicate 18 to 30 volts dc?
UNIT
1l
See step 58.
!
( )
l
Set GRENADE POWER
Check firing pin in left dis-
charger barrel number 1 for
elactricai power.
1
switch
OFF.
l
Set MASTER BAT-
TERY switch OFF.
l
Replace right smoke
grenade discharger (page
TA248696
4-554.8
Change
1
