Milton CAT D7E - Manual (Page 4)

4
Engine
ACERT ™ Technology.
The D7E electric drive train is powered by a 235 hp Cat C9.3
engine with ACERT™ Technology. The engine utilizes a
proven common rail fuel system for improved efficiency and
fuel economy. Featuring the latest in Cat emissions reduction
technologies, this engine meets U.S. EPA Tier 3, EU Stage IIIa
and Japan MLIT Step 3 emissions regulations.
The efficient drive train allows the engine to operate in a
tighter rpm range, 1500 – 1800 rpm, which helps extend
engine life and improve fuel economy. The increased
drivetrain efficiency also allows the machine to achieve
greater performance at lower horsepower than previous
models, adding even more to the D7E overall benefits.
Features
Beltless design: Accessory systems are electrically
powered, so engine belts and alternators are not needed.
Serviceability: Electric priming pump and easier engine
access make service easier.
Leak Protection: Components are sealed, preventing
leaks and protecting fluids from contamination. •
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Cooling System
Efficient and easy to service.
The D7E cooling system uses a three-part radiator
built with rugged, highly efficient aluminum bar cores
for charged air, jacket water, and the separate circuit.
Although the jacket water and separate circuit coolant
operate at different temperatures, the radiator appears
and acts as one integrated unit. Airflow is managed by
a hydraulic variable speed demand fan, reducing power
requirements and fuel consumption. A molded shroud
ensures efficient air flow through the radiator and the
fan utilizes lightweight, durable fiberglass blades for high
efficiency and quiet operation. A larger gap between fins
reduces plugging, and the single-plane design allows for
easier cleaning and service.