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 747 of 1320

TM 9-2320-304-14&P

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Organizational Maintenance Instructions (Cont)

4-54. OVERVIEW (LOAD HANDLING SYSTEM).

Refer to Para 1-13 for an overview of the Load Handling System (LHS) used on the M1120 truck.

4-55. OVERVIEW (HYDRAULIC SYSTEM).

The M1120 truck uses the same hydraulic pump as the M978 HEMTT. Refer to TM 9-2320-279-20 for all

hydraulic pump troubleshooting and repair procedures.

4-56. PRINCIPLES OF OPERATION.

Fluid power for the LHS is provided by a hydraulic pump driven by the power takeoff (PTO) mounted on the

transmission. The PTO switch, located in the cab, is used to engage and disengage the PTO. Hydraulic fluid

is drawn from and returns to the hydraulic reservoir by hydraulic hoses.

4-57. HYDRAULIC FILTER AND HOUSING REPLACEMENT.

Refer to TM 9-2320-279-20 for maintenance procedures for the Hydraulic Filter and Housing.

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