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 330 of 1616

TM 9-2320-440-13&P

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0035

MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (CONTINUED)

THAAD0704

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 REC2. Turn engine start switch to ON position (engine OFF)

(

Position LHS cab control mode selector to MAN MAIN FRAME

position (WP 0012). Soldier A checks for 22 to 28 vdc between wires 1468A and 1468B

at THAAD control valve harness rectifier REC2 connector, terminals 2 and 3 and a

known good ground, while Soldier B holds 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 1468 from connector REC2, terminal 4 to connector

HV3-B1, terminal 2.

a.

If there is continuity, replace diode REC2 (WP 0088).

b.

If there is no continuity, repair wire 1468 (TM 9-2320-325-14&P) or

replace THAAD control valve harness (WP 0088).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION