SECTION 1 – ENGINE SYSTEMS
Fast Idle Advance
Fast idle advance increases engine idle speed for faster
warm-up to operating temperature. This occurs when the ECM
monitors Engine Coolant Temperature (ECT) sensor input and
adjusts fuel injector operation accordingly.
Low idle speed is increased proportionally when the ECT is
below 70 °C (158 °F) at 700 rpm to below -10 °C (14 °F) at 875
rpm maximum.
Service Diagnostics
The
Electronic
Service
Tool
(EST)
provides
diagnostic
information using the J1939 datalink.
Faults from sensors, actuators, electronic components, and
engine systems are detected by the ECM. The faults are
accessed by the EST through the Diagnostic Connector, and
are displayed as Diagnostic Trouble Codes (DTCs) on the EST.
Effective engine diagnostics require and rely on DTCs. See the
applicable Engine Diagnostic Manual.
Engine Optional Features
Air Compressor
An air compressor is available for applications that require air
brakes or air suspension. A hydraulic power steering pump can
be used with or without the air compressor.
Coolant Heater
A coolant heater is available to raise the temperature of the
coolant surrounding the cylinders for improved performance
during cold weather startups.
Cruise Control
The ECM controls the cruise control feature. The cruise control
system functions similarly for all electronic engines. Maximum
and minimum allowable cruise control speeds will vary based on
application. To operate cruise control, see appropriate Vehicle
Operator Manual
.
Engine Brake
An optional exhaust or engine brake is available to aid in the
deceleration rate of vehicles. The exhaust and engine brake
provides improved braking performance.
These options are
mutually exclusive and are available for all ratings.
Engine Fan Control
The engine fan control commands higher air flow through the
radiator when the Air Conditioner (A/C) is on or when the coolant
or inlet air temperature goes above a set temperature.
Engine Warning Protection System (EWPS)
EWPS is designed to protect the engine from damage
by monitoring critical engine data such as engine speed,
temperature, oil pressure, and coolant levels. This feature will
alert the operator by using a combination of visual and audible
warnings when critical engine parameters have been exceeded.
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