Detroit Diesel 60 Series Owner's Manual page 4

DDEC II
Detroit Diesel Series 60 engines equipped
with DDEC II electronic control systems are
identified by a "U" in the sixth position of the
model number. Example: 6067GU60.
Detroit Diesel Electronic Controlled Series
60 engines can be equipped with a variety of
options designed to warn the operator of an
engine malfunction. The options can range
from "Check Engine" and "Stop Engine" panel
lights to automatic reduction in engine power
followed by automatic engine shutdown.
The power-down/shutdown option may be
activated by low coolant level, low oil pressure,
or high engine oil or coolant temperature.
DDEC III/IV
Detroit Diesel Series 60 engines equipped with
DDEC III or DDEC IV electronic control systems
are identified by a "K" in the sixth position of
the model number. Example: 6067GK60.
Detroit Diesel Electronic Controlled Series
60 engines can be equipped with a variety of
options designed to warn the operator of an
engine malfunction. The options can range
from "Check Engine" and "Stop Engine" panel
lights to automatic reduction in engine power
followed by automatic engine shutdown.
The power-down/shutdown option may be
activated by low coolant level, low oil pressure,
or high engine oil or coolant temperature.
Typical Shut-Down Override Switch and
Engine Lights
NOTICE:
If the warning lights stay on, or if they
do not come on momentarily after
turning on the ignition, consult with a
DDEC technician. Operating the engine
under these circumstances may result
in engine damage.
The Series 60 DDEC engine is equipped
with an electronically controlled fuel
injection system. There are no control racks
or mechanical linkage to adjust. This system
not only helps to improve fuel economy
and vehicle performance, but also helps
to reduce cold starting time and increase
initial idle speed for fast engine warm-up and
virtual elimination of cold smoke.
The DDEC engine has no mechanical
governor. Engine horsepower, torque, idle,
and engine speed are contained in the
internal electronics. Therefore, there are no
mechanical governor spring adjustments for
idle and high speed control.
There is no need for a throttle delay
either, since emission control is performed
through the Electronic Control Module (ECM).
The Electronic Foot Pedal Assembly (EFPA),
eliminates the need for any throttle linkage.
The DDEC engine has the ability to
perform diagnostics for self-checks and
continuous monitoring of other system
components. Depending on the application,
DDEC can also monitor oil temperature,
coolant temperature, oil pressure, fuel
pressure, coolant level, and remote sensors
(if used). This diagnostic system is connected
to the "Check Engine" light (CEL) and the
"Stop Engine" light (SEL) to provide a visual
warning of a system malfunction.
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