TM-9-2320-272-10
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; OPERATOR'S MANUAL
SEPTEMBER 2004
CHANGE 2
TM-9-2320-272-10 - Page 93 of 481
TM 9-2320-272-10
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c. Dump Body Hydraulic System Operation.
The dump body is installed on M929/A1/A2 and M930/A1/A2 vehicles. These
models are used to transport and deposit cargo. The dump body hydraulic system
converts mechanical power from the engine into fluid power through use of the
hydraulic pump. The pump draws fluid from the oil reservoir and then forces it into
the control valve. This hydraulic pressure raises and lowers the dump body. Major
components of the dump body hydraulic system are:
1-21. CONTROL SYSTEM OPERATION (Contd)
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