C
--
L-
(
‘—
. .
TM 5-5420-226-20-1
DETAILED TROUBLESHOOTING
PROCEDURE
Symptom-51.1
SUPPORT SYSTEM - SMOKE GRENADE
LAUNCHER
FROM 8TEP
(Continued)
o35
r Check harness for continuity between socket A
of connector at left discharger and socket E of
connector at pushbutton unit.
First Technician
(Operator’s
Station)
l
l
l
l
l
Second
l
Set GRENADE
POWER switch OFF.
Set MASTER
BATT.ERY switch OFF.
Remme
harness connector
from pushbutton
unit.
Set multimeter
to OHMS XI male and zero
meter.
Connect black probe of meter to socket E of
harness connector
at pushbutton
unit.
Technician
(Left Discharger)
Canned
red probe of meter to socket A of
harness connector
at left discharger.
Check if meter indicatea continuity.
Doss meter indicate continuity?
)
l
Connect harness con-
nector to jack on left
discharger.
l
Replacesmoke grenade
pushbutton unit (page
18.1-4).
-@+
SWITCH
\
W’il
11-
Y!!
PUSHBUTTON
~
UNIT
v/
—/-
LEFT DISCHARGER
TA248713
Change 1
4-554.25
