TM 5-5420-226-20-1
Symptom-56
DETAILED TROUBLESHOOTING PROCEDURE
SUPPORT SYSTEM - GAS PARTICULATE
(Continued)
FROM
STEP
o2
1
~
Check master control panel harness connector
(CKT
920) at input to gas particulate
cwcult breaker
for
Second
Technician
(Operator’s
Station)
l Set GAS PARTICULATE
switch
OFF.
l Set MASTER
BATTERY
switch
OFF.
l Displace
master
control
panel
(page
10-33).
l Disconnect
master
control
panel harness
connector
(CKT
920) from gas particulate
circuit
breaker.
l Set multimeter
to measure
18 to 30 volts dc. or use STE/
ICE Test No. 89 (page 4-81).
l Connect
red probe of meter
to master
control
panel
harness
connector
(CKT
920) at gas particulate
circuit
breaker
and black probe to ground.
l Set MASTER
BATTERY
switch
ON.
l Check if meter indicates
18 to 30 volts dc.
k
/
Does meter indicate
18 to 30 volts dc?
m
(
,
n,
T
D-
+
0
TO VEHICLE
GROUND
(1
ASTER CONTROL
PANEL
/
(REAR VIEW)
/
.
GAS PARTICULATE
CIRCUIT
BREAKER
}
Replacemastercontrol panel
power harness (page 10-91).
TA107274
4-585
