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TM 9-2320-304-14&P
1-6
Introduction (Cont)
Section II. Equipment Description
1-9. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES.
a. Characteristics. The HEMTT with LHS is a tactical wheeled truck with integral self-load/unload
capability. Major subsystems of truck are: cab, engine, transmission, drive train, suspension, electrical
system, hydraulic system, pneumatic system, and load handling system (LHS).
b. Capabilities.
(1) All models are capable of operating in temperatures from --25 to 120_F (--32 to 49_C) and to
--50_F (--46_C) with the arctic kit installed.
(2) All models can ford water up to 48 in. (1 219 mm) deep for five minutes without damage or
requiring maintenance before operation can continue.
(3) Normal operating range for truck is 300 mi. (483 km) based on 154 gal (583 L) of fuel and
103,000 lb. (46 720 kg) GVCWR, traveling over mixed terrain. Varying loads, prolonged idle,
use of the LHS, off-road driving and, climatic conditions affect operating range.
(4) All models are provided with sufficient tiedown points located so that the truck can be
restrained in all directions during air transport. All models are capable of transport by highway,
rail, and sea.
c. Features.
(1) Eight-cylinder, V-type, two-cycle, fuel-injected, turbocharged diesel engine.
(2) High/low range transfer case.
(3) Power steering system consists of basic manual steering system with a hydraulic boost.
(4) Mechanical linkage also provides operator control in event of hydraulic oil pressure loss.
(5) Fuel system includes one main fuel tank, fuel lines, fuel water separator, fuel pump, secondary
fuel filter, fuel pipes, and fuel injectors.
(6) Two front and two rear towing eyes.
(7) Manual-release-type rear self-guided coupler allows towing of trailer.
(8) Radio frequency interference suppression to permit voice radio communications during all
phases of operation.
(9) LHS enables a single operator to load a flatrack to a truck and/or a trailer.
(9.1) LHS enables a single operator to load the Forward Repair System (FRS) to a truck, but not a
trailer.
(9.2) Container Handling Unit (CHU) capable of lifting ISO containers and shelters onto truck.
(10) The sideboard kit and tiedowns on the flatrack allow the truck to carry bulk loads.
(11) Multiple warning indicators, gages, and buzzers protect the systems from damage by warning
the operator about unsafe operating conditions.
(12) Circuit breakers protect electrical system from damage and can be reset from cab.
(13) LHS has backup systems in the event of hydraulic or electrical system failure.
(14) Each truck is fitted for a Gas Particulate Filter Unit (GPFU) that would mount in the cab.
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