TM-9-2320-304-14-P

LOAD HANDLING SYSTEM, HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)

TECHNICAL MANUAL; OPERATOR’S, ORGANIZATIONAL, AND DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL (INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST)

AUGUST 2000

TM-9-2320-304-14-P - Page 477 of 1320

Malfunction

Test or Inspection

Corrective Action

TM 9-2320-304-14&P

4-99

Organizational Maintenance Instructions (Cont)

Table 4-3. Load Handling System (LHS) Troubleshooting (CONT)

LOAD HANDLING SYSTEM (LHS) (CONT)

13. HOOK ARM DOES NOT LOAD IN MANUAL MODE (CONT).

WARNING

Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive

electrical circuits, a direct short may result. Damage to equipment and injury or death to

personnel may occur.

NOTE

Only remove center screw on engine side of LHS control box cover.

Step 3.

Check for 22 to 28 Vdc at hook arm down directional control (DC) valve harness connector

terminal 2 with ENGINE switch ON, hydraulic selector switch in MAN H.A. position, and

joystick in LOAD position.

If there are 22 to 28 Vdc, go to

Step 9

.ofthisFault

.

If Vdc measurement is below specification, go to

Step 4.

of this Fault.