TM-9-2320-440-13-P

TERMINAL HIGH ALTITUDE AREA DEFENSE (THAAD) CARRIER

TECHNICAL MANUAL; OPERATOR’S AND FIELD LEVEL MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

AUGUST 2010

TM-9-2320-440-13-P - Page 168 of 1616

TM 9-2320-440-13&P

0020-14

0020

GROUND ROD DRIVER DOES NOT OPERATE (CONTINUED)

THAAD0651A

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 23.

Disconnect diode REC14. Turn engine start switch ON (

Check for

22 to 28 vdc between wires 1979A and 1979B at THAAD control valve harness

connector REC14, terminals 2 and 3 and a known good ground. Note readings.

a.

If 22 to 28 vdc are not present on both wires, go to Step 27.

b.

If 22 to 28 vdc are present on both wires, perform Step 24 only.

c.

If 22 to 28 vdc are present on one wire, perform Steps 24 through 26.

Step 24.

Turn engine start switch OFF (

Disconnect THAAD control valve

harness connector HV5. Check for continuity across wire 1979 between diode REC14,

terminal 4 and connector HV5, terminal 2.

a.

If there is continuity, replace diode REC14 (WP 0088).

b.

If there is no continuity, repair wire 1979 (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)