Illustration 22
g01127295
Cylinder and valve location
(A) Exhaust valves
(B) Inlet valves
Table 1
1206A/D-E70TTA Specifications
Operating Range (rpm)
900 to 1900
Number of Cylinders
6 In-Line
Bore
105 mm (4.13 inch)
Stroke
135 mm (5.31495 inch)
Power
200 to 229 kW
(268.2 to 307.09 hp)
Aspiration
Turbocharged charge cooled
Compression Ratio
15.9:1
Displacement
7.01 L (428 in
3
)
Firing Order
1-5-3-6-2-4
Rotation (flywheel end)
Counterclockwise
(1)
The operating rpm depends on the engine application.
Electronic Engine Features
The engine operating conditions are monitored. The
Electronic Control Module (ECM) controls the
response of the engine to these conditions and to the
demands of the operator. These conditions and
operator demands determine the precise control of
fuel injection by the ECM. The electronic engine
control system provides the following features:
• Engine monitoring
• Engine speed governing
• Control of the injection pressure
• Cold start strategy
• Automatic air/fuel ratio control
• Torque rise shaping
• Injection timing control
• System diagnostics
The ECM provides an electronic governor that
controls the injector output to maintain the desired
engine speed.
For more information on electronic engine features,
refer to the Operation and Maintenance Manual,
“Features and Controls” topic (Operation Section).
Engine Diagnostics
The engine has built-in diagnostics to ensure that the
engine systems are functioning correctly. The
operator will be alerted to the condition by a
“
Stop or
Warning
”
lamp. Under certain conditions, the engine
horsepower and the vehicle speed may be limited.
The electronic service tool may be used to display
the diagnostic codes.
There are three types of diagnostic codes: active,
logged, and event.
Most of the diagnostic codes are logged and stored in
the ECM. For additional information, refer to the
Operation and Maintenance Manual, “Engine
Diagnostics” topic (Operation Section).
Fuel System Filtration
The engine is equipped with three fuel filters. Two
primary fuel filter and one secondary fuel filter.
Engine Cooling and Lubrication
The cooling system and lubrication system consists
of the following components:
• Gear-driven centrifugal water pump
• Water temperature regulator which regulates the
engine coolant temperature
• Gear-driven gerotor type oil pump
• Oil cooler
The engine lubricating oil is supplied by a gerotor
type oil pump. The engine lubricating oil is cooled
and the engine lubricating oil is filtered. The bypass
valve can provide unrestricted flow of lubrication oil to
the engine if the oil filter element should become
plugged.
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