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 256 of 1616

TM 9-2320-440-13&P

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MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

HOOK ARM DOES NOT UNLOAD IN MANUAL MODE

THAAD0656A

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 1.

Remove main manifold valve assembly box cover (WP 0145). Disconnect THAAD

control valve hook arm up harness connector HV2-B1. Turn start engine switch to ON

position (engine OFF) (

Position LHS cab control mode select

switch to MAN HOOK ARM position (WP 0012). Soldier A checks for 22 to 28 vdc on

wire 1464 between connector HV2-B1, terminal 2, and a known good ground, while

Soldier B holds joystick in UNLOAD position.

If 22 to 28 vdc are not present, go to Step 6.

Step 2.

Turn engine start switch OFF (

Check for continuity across wire

1435 at THAAD control valve harness connector HV2-B1, terminal 1 to a known good

ground.

If there is no continuity, repair wire 1435 (TM 9-2320-325-14&P) or replace

THAAD control valve harness (WP 0088).

TM 9-2320-347-10)

TM 9-2320-347-10)