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 220 of 1616

TM 9-2320-440-13&P

0025-4

0025

RACK LOCKS ENGAGED INDICATOR LIGHT(S) DO NOT OPERATE PROPERLY (CONTINUED)

THAAS0421

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 3.

Remove RACK LOCKS ENGAGED indicator light (WP 0081) and disconnect THAAD

control valve harness RACK LOCKS ENGAGED indicator connector. Turn engine start

switch ON (

Check for 22 to 28 vdc between wire 1992 at RACK

LOCKS ENGAGED indicator connector, positive terminal (black wire) and a known

good ground, when MRP control station lamp test switch is turned ON (WP 0004).

If 22 to 28 vdc are not present, go to Step 5.

Step 4.

Turn engine start switch OFF (

Check for continuity across wire

1435 from THAAD control valve harness RACK LOCKS ENGAGED indicator

connector, negative terminal (white wire) to a known good ground.

a.

If there is continuity, replace RACK LOCKS ENGAGED indicator light

(WP 0081).

b.

If there is no continuity, repair wire 1435 (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)