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 259 of 1616

TM 9-2320-440-13&P

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HOOK ARM DOES NOT UNLOAD IN MANUAL MODE (CONTINUED)

THAAD0707

WARNING

Main frame and hook arm combined weight is 2,100 lbs (953 kg). Main frame must

be raised with a suitable lifting device and supported with two wooden blocks.

Failure to comply may result in serious injury or death to personnel.

WARNING

To relieve pressure from hook arm manifolds, only crack the counterbalance valves

and do not remove.

Failure to comply may result in serious injury or death to

personnel.

NOTE

It may be necessary to crack the counterbalance valves on the hook arm manifolds to

relieve pressure, so that the rod end of the cylinders may be disconnected from the hook

arm.

Step 5.

Turn engine switch to ON position (engine OFF) (

Turn LHS cab

mode select switch to MAN TRANSIT position (WP 0016). With suitable lifting device,

Soldier A and Soldier B raise hook arm and block in two places with wooden

blocks (WP 0130). Turn engine switch to OFF position (

With

suitable lifting device, Soldier A and Soldier B remove rod end of both hook arm

cylinders from hook arm (WP 0128) and lower rod end of cylinder to clear rubber

bumpers and hook arm proximity switch flag. Start engine (

While

Soldier A attempts to unload hook arm using emergency procedures (WP 0016),

Soldier B notes operation of hook arm cylinders. Shut off engine (

a.

If one hook arm cylinder does not extend, replace non-extending hook

arm cylinder manifold (WP 0130).

b.

If both hook arm cylinders do not extend, notify Supervisor.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

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