Detroit Diesel 60 Series Operator's Manual page 20

are no control racks or mechanical link-
age to adjust. This system not only
helps to improve fuel economy and vehi-
cle performance, it also helps to reduce
cold starting time and increase initial idle
speed for fast engine warm-up and vir-
tual elimination of cold smoke.
The DDEC engine
mechanical governor. Engine horse-
power, torque, idle, and engine speed
are contained in the internal electronics.
Therefore, there are no mechanical gov-
ernor 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.
The DDEC engine can be
equipped with an engine protection
system that features a 30 second,
stepped-power shutdown sequence
or an immediate speed reduction
without shutdown in the event a major
engine malfunction occurs, such as low
oil pressure, high oil or coolant tempera-
ture, or low coolant level.
To avoid injury from engine shut-
down in an unsafe situation,
ensure the operator knows how to
override the stop engine condition
on a DDEC-equipped unit.
has no
If the engine is equipped with the
power-down/shutdown option, there
will be a system override button or
switch which may be used to allow
engine operation for a short period of
time. If the shutdown override button
is not used, the shutdown will occur in
30 seconds. Using the override button
so that the engine operates for an
extended period may result in engine
damage.
The DDEC engine may also have
an optional 1-100 minute idle shut-
down system. The purpose of this sys-
tem is to conserve fuel by eliminating
excessive idling and to allow for a tur-
bocharger cool down period. To activate
the shutdown, the transmission must be
in neutral, with the vehicle parking
brakes set and with the engine in idle or
fast idle mode.
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CAUTION:
NOTICE: