TM 5-3825-270-10
OPERATOR MAINTENANCE
THEORY OF OPERATION
INTRODUCTION
The EMM - WD's primary mission is to enhance the engineer corps and supported forces in the areas of combat
support, combat service support and general construction; this includes the construction of airfields, railways, roads
and infrastructure.
PRINCIPLES OF OPERATION
Electrical power is provided to the module by on-board systems. Water distribution is accomplished through the hose
reel, sprinkler system, water turret, and gravity bar.
OPERATIONAL FEATURES OF COMPONENTS
ENGINE
The engine, which powers the pump, is mounted within the module unit. It receives its fuel from a 20 gal (76 L) fuel
tank mounted to the flatrack on the front left side. Control of the engine is by the control panel as described below.
The EMM - WD and the engine is not shielded against electromagnetic interference. A standoff from high frequency
communications is recommended.
PUMP
The pump is coupled directly to the engine. The purpose of the pump is to pump water out of or into the tank.
VALVES
There are a total of eight valves on the Water Distributor that control different operations. Refer to data plates and
decals (WP 0084) for location of valves.
CONTROL PANEL
The control panel controls the starting and stopping of the engine. It also monitors the tank functions as well as the
high and low water indicators. The control panel is permanently mounted on the rear platform.
TRANSPORTER OPERATION AND FUNCTIONS
For transporter operation and functions refer to:
TM 9-2320-364-10 for the Palletized Load System (PLS) truck (M1074, M1075).
TM 9-2330-385-10 for the PLS trailer (M1076).
END OF WORK PACKAGE
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