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 771 of 1320

Malfunction

Test or Inspection

Corrective Action

TM 9-2320-304-14&P

5-21

Direct Support and General Support Maintenance (Cont)

Table 5-2. Direct Support/General Support Troubleshooting (CONT)

LOAD HANDLING SYSTEM (LHS)

4. HOOK ARM DOES NOT UNLOAD.

NOTE

For Fault 4 the engine must be running, PTO engaged, and hydraulic selector switch in

MAN H.A. position.

NOTE

Ensure manual push button is pushed past free play to engage.

Step 1.

Check operation of hook arm unload using DC valve manual push button and free flow

valve manual push button.

If hook arm unloads, replace lower DC valve (Para 5-35).