TM 9-2320-440-13&P
0041-6
0041
OUTRIGGER CONTROLS FAIL TO OPERATE (CONTINUED)
THAAD0622
WARNING
Remove rings, wristwatches, neck chains, and any other jewelry before working
around vehicle.
Jewelry can catch on equipment and cause serious injury.
Jewelry
and tools may short across electrical circuits and cause damage to equipment or
severe burns or electrical shock to personnel.
NOTE
Due to system redundancy, the valve control signal is required from only one of the VIMs
for proper system operation.
The following steps check the valve control circuit from both
VIMs, to ensure system integrity.
Step 8.
Disconnect diode REC6. Turn engine start switch ON (
Soldier A
checks for 22 to 28 vdc between wires 1973A and 1973B at THAAD control valve
harness connector REC6, terminals 2 and 3 and a known good ground, while Soldier B
presses outrigger palm button switch (WP 0012). Note readings.
a.
If 22 to 28 vdc is not present on both wires, go to Step 12.
b.
If 22 to 28 vdc is present on both wires, perform Step 9 only.
c.
If 22 to 28 vdc is present on one wire, perform Steps 9 through 11.
Step 9.
Turn engine start switch OFF (
Check for continuity across THAAD
control valve harness wire 1973 between connector REC6, terminal 4 and connector
HvV10, terminal 2.
a.
If there is continuity, replace diode REC6 (WP 0088).
b.
If there is no continuity, repair wire 1973 (TM 9-2320-325-14&P) or
replace THAAD control valve harness (WP 0088).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
TM 9-2320-347-10)
TM 9-2320-347-10)