TM 5-3805-264-13&P
OPERATOR MAINTENANCE
EQUIPMENT DESCRIPTION AND DATA
EQUIPMENT DESCRIPTION, CAPABILITIES, AND FEATURES
The M917A1, M917A1 with Material Control System (MCS), M917A2, and M917A2 with MCS dump truck body
consists of a steel body designed to transport and dump or spread aggregate, hot mix asphalt, or similar
materials. A sealed, open-loop hydraulic system raises and lowers the dump body. The hydraulic system operates
on pressure supplied by a gear pump that is mounted directly to the transmission's Power Take Off (PTO).
The dump body has a 14 cubic yard (10.7 m), 18.5 ton (16.8 metric ton) capacity. It is constructed of heavy duty
steel with an abrasion-resistant floor.
Wooden side boards along the top on both sides of the dump body add height to help prevent spillage when
hauling material.
The dump body is equipped with a cargo cover that is easily operated by one person.
The operator's instrument panel inside the vehicle cab has a Body Up and a Body (Transport) Lock indicator light.
These lights allow monitoring of the dump body's status without leaving the cab.
The chassis has limited off-road capabilities with a Central Tire Inflation System (CTIS) (TM 9-2320-363-10 for
M917A1 and M917A1 with MCS or TM 9-2320-302-10 for M917A2 and M917A2 with MCS). This provides a wide
variety of terrain in which the dump truck can operate.
The M917A1, M917A1 with MCS, M917A2 and M917A2 with MCS are the same except for the tailgate
configuration.
The M917A1 and M917A2 (Figure 1) have a double-acting tailgate, which opens at the top or bottom, with chains
to adjust the tailgate opening. The tailgate is unlocked and locked by operating the tailgate release control valve
lever on the instrument panel inside the cab.
The M917A1 with MCS and M917A2 with MCS (Figure 2) have a tailgate with dual-function capability. It is
equipped with an MCS with four independently controlled gates. If can also be operated as a top-hinged tailgate.
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