EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES

Section II. EQUIPMENT DESCRIPTION AND DATA

LOCATION AND DESCRIPTION OF MAJOR COMPONENTS.

TM-9-2320-272-10
Page Navigation
6

TM 9-2320-272-10 1-11. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES a. The 5-ton, 6x6, M939, M939A1, and M939A2 series vehicles are designed for use on all types of roads, highways, and cross-country terrain. These vehicles also operate in extreme temperatures such as arctic weather conditions. b. The M939 series vehicles are an improved version of the M809 series. The improvements make M939 series vehicles more reliable and easier to operate. The major improvements are: WARNING This vehicle has been designed to operate safely and efficiently within the limits specified in this TM. Operation beyond these limits is prohibited IAW AR 70-1 without written approval from the Commander, U.S. Army Tank-automotive and Armaments Command, ATTN: AMCPEO-CM-S, Warren, MI 48397- 5000. (1) Automatic Transmission (2) Improved Power Steering System (3) Complete Airbrake System (4) Improved Cooling System (5) Improved Electrical System (6) Three-Crew Member Cab (7) Tilt Hood (8) Hydraulically Powered Front Winch c. The M939 series vehicles use 11:00 x R20 tires and have rear tandem duals, while the M939A1 and M939A2 series vehicles use 14:00 x R20 super sized tires and rear tandem singles. The mounted tires and spare on each vehicle are non-directional in design and use. d. The M939 and M939A1 series vehicles employ the Cummings (NHC 250) 250 horsepowered engine, while the M939A2 series vehicles use a smaller, turbocharged Cummings (6CTA8.3) 240 horsepowered engine. The M939A2 series vehicles additionally have the Central Tires Inflation System (CTIS) which allows for greater tactical mobility. e. All M939/A1/A2 series vehicles utilize the same automatic transmission, are equipped with a spare tire mount at the rear of the cab, have removable canvas cab tops, and are supplied with pintle hooks and air connections used for towing. f. The 5-ton load limit rating of M939/A1/A2 series vehicles does not mean these vehicles are limited to 5-ton payloads. A vehicle rating only indicates the maximum amount of cargo weight the vehicle axles and frame can withstand when operating under the worst cross-country conditions. 1-9

Privacy Statement
Press Release
Contact