TM-9-2320-279-10-2
M977 SERIES, 8x8 HEAVY EXPANDED MOBILITY TACTICAL TRUCKS (HEMTT)
OPERATOR’S MANUAL VOLUME 2 OF 2
DECEMBER 1998
CHANGE 3
TM-9-2320-279-10-2 - Page 19 of 819
TM 9-2320-279-10- 2
Section II .
EQUIPMENT DESCRIPTIO N
Features and Capabilities
1-27. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES.
a. Characteristics.
The M984E1 vehicle is used as a multipurpose vehicle
capable of recovering and towing a full spectrum of loaded, wheeled vehicles.
Lift and reach capability to perform maintenance assistance associated with
removing and replacing powerpacks and heavy components from a wide range of
wheeled and tracked vehicles .
b. Capabilities .
– 50 °F ( – 46 °C) with arctic kit installed.
(2)
Can ford water up to 48-in. (1 219 mm) deep for 5 minutes without
damage or without requiring maintenance before operation can continue .
(3)
Normal operating range is 300 miles (483 km), based upon 154 gallons
(583 L) of fuel and 100,000-lb (45 400 kg) GCWR, traveling over mixed terrain.
Varying loads, prolonged idle, use of power takeoff (PTO), offroad driving, and
climatic conditions affect operating range.
(4)
Tiedown points located so vehicles can be restrained in all directions
during air transport in C-130, C-141, and C-5A type aircraft. Capable of being
transported by highway, rail, and sea.
c. Features .
(1)
Eight-cylinder, V-type, 2-cycle, turbocharged diesel engine.
(2)
Automatic transmission with one reverse speed and four forward
speeds .
(3)
Operator controlled 4-wheel/8-wheel drive and high and low range
transfer case for positive traction in areas of unimproved road surfaces.
(4)
Power steering system consists of basic manual steering system with
hydraulic boost. Mechanical linkage also provides operator control in event of
hydraulic oil pressure loss.
(5)
Fuel system includes one fuel tank, fuel lines, fuel-water separator, fuel
pump, secondary filter, fuel pipes, and fuel injectors.
(6)
Two front and two rear towing eyes.
(7)
Manual-release-type rear pintle hook which will allow towing of a trailer.
(8)
Radio frequency interference suppression to permit voice radio
communications during all phases of operation.
1- 5
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