TM 5-5420-226-20-1
DETAILED TROUBLESHOOTING
PROCEDURE
Symptom-6 1.1
SUPPORT
SYSTEM - SMOKE GRENADE
LAUNCHER
(
) Check socket C of harnass connector at right
discharger for alactrical power.
FirstTechnician (Operators Station)
l Set MASTER BAITERY switch OFF.
Second Technician (Right Discharger)
l Disconnect harness connector from right
discharger receptacle.
First Technician (Operators Station)
l Set MASTER BATIERY switch ON.
l Preaa and hold LEFT button on pushbutton
unit.
Second Technician (Right Discharger)
l Connect red probe of meter to socket C of
harness connector and black probe to ground.
l Check if meter indicates 18 to 30 volts dc.
First Technician (Operators Station)
l Release LEFT.button on pushbutton unit.
Does meter indicate 18 to 30 volts dc?
n
(
l
Check firing pin in left dis-
1
I
charger bar;el number 3 for
electrical power.
w
l
See step 44.
I
I
Replace right smoke grenade
discharger (page 18. 1-25).
W--F
TO VEHICLE
GROUND
(
TA248694
4-554.6
Change 1