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 454 of 1320

Malfunction

Test or Inspection

Corrective Action

TM 9-2320-304-14&P

4-76

Organizational Maintenance Instructions (Cont)

4-18. TROUBLESHOOTING INSTRUCTIONS (CONT).

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

LOAD HANDLING SYSTEM (LHS) (CONT)

10. LOSS OF HOOK ARM SAFE LOWERING FUNCTION (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.

Step 6.

Check continuity between hook-arm safe lowering button wire connection points with but-

ton pushed in.

If there is no continuity, replace hook-arm safe lowering button (

Para 4-39

).

Step 7.

Check for 22 to 28 Vdc on wire 1479 at main frame safe lowering button with ENGINE

switch in ON position.

If Vdc measurement is below specification, repair wire 1479 or notify DS Mainte-

nance.