Milton CAT D6T - Manual (Page 7)

ADEM™ A4 Engine Controller. The air-
cooled ADEM A4 controller is the brain
of the engine and contains the engine’s
control software. It regulates fuel
delivery, airflow and other engine
functions. In addition, it directs the
HEUI injectors to deliver multiple
injections of fuel during the engine’s
compression stroke.
Fuel Delivery. Multiple injection fuel
delivery involves a high degree of
precision. Precisely controlling the
combustion cycle lowers combustion
chamber temperatures, which lowers
emissions and optimizes fuel economy.
This translates into more work output
per unit of fuel.
HEUI™ Fuel System. The HEUI fuel
system is highly evolved, with a proven
record of reliability. HEUI uses the
technical advancement of an electronic
control system with the flexibility of
hydraulically controlled unit fuel
injection. The system excels in its
ability to control injection pressure over
the entire engine operating speed range.
These features allow the C9 to have
complete control over injection timing,
duration, and pressure.
Air-to-Air Aftercooler. The air-to-air
aftercooler (ATAAC) brings cool air
to the engine which increases life and
lowers emissions. In addition, the
ATAAC, together with the tight tolerance
combustion chamber components,
maximizes fuel efficiency.
Wastegate Turbocharger. The wastegate
allows high-volume exhaust to be
routed around the turbocharger to the
exhaust piping to prevent wheel spin
overspeed at high rpm but low load
conditions.
Service. The new C9 engine offers
easier maintenance and repair through
monitoring key functions and logging
critical indicators. Electronic diagnostic
access is possible with a single tool,
the Cat Electronic Technician.
Next Generation Modular Radiator
(NGMR). Improves cooling capabilities
by using a parallel flow system with
six cores. Serviceability is improved
with NGMR since there is no top tank
to remove.
Serviceability. This modular core
design permits removal of a single core
without removing the entire radiator so
repair costs and downtime are reduced.
The top tank, side channels and one
sealing surface makes AMOCS more
reliable and easier to service. A site
gauge allows for quick service checks.
Leak Protection. To reduce the potential
for coolant leaks, brass tubes are welded
to a large, thick header to improve the
strength of the tube-to-header joint.
In conditions where abrasive materials
can be airborne, the attachment sand
blast grid should be used to prevent
core damage.
Sand Blast Grid. In an application
where airborne debris is prevalent,
radiator core protection is a concern.
To extend radiator life in harsh
applications, a sand blast grid is
available as an option to deflect the
damaging debris the engine fan propels
at the radiator.
Demand Fan Option. Based primarily
on ambient air temperature, the optional
demand fan can improve productivity
up to three percent and reduce fuel
consumption up to four percent since
the demand fan will only run at a speed
needed to meet the cooling requirements
of the machine. As cooling requirements
increase above 24° C (75° F), the demand
fan performance converges towards
that of the standard fan so lesser benefit
is achieved.
7