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 260 of 1616

TM 9-2320-440-13&P

0028-6

0028

HOOK ARM DOES NOT UNLOAD IN MANUAL MODE (CONTINUED)

THAAD0698B

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.

Step 6.

Disconnect diode REC4. Turn engine start switch to ON position

(engine OFF) (

Position LHS cab control mode select switch to

MAN HOOK ARM position (WP 0016). Soldier A checks for 22 to 28 vdc between wires

1464A and 1464B at THAAD control valve harness rectifier REC4 connector, terminals

2 and 3 and a known good ground, while Soldier B holds LHS control joystick in

UNLOAD position. Note readings.

a.

If 22 to 28 vdc are not present on both wires, notify Supervisor.

b.

If 22 to 28 vdc are present on both wires, perform Step 7 only.

c.

If 22 to 28 vdc are present on one wire, perform Steps 7 through 9.

Step 7.

Turn engine start switch OFF (

Check for continuity across THAAD

control valve harness wire 1467 from connector REC4, terminal 4 to connector

HV2-B1, terminal 2.

a.

If there is continuity, replace diode REC4 (WP 0088).

b.

If there is no continuity, repair wire 1467 (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)