Milton CAT D11T CD User Manual

Engine

Engine Model Cat®C32 ACERT™
Flywheel Power 634 kW 850 hp

Weights

Operating Weight 104 590 kg 230,100 lb
Shipping Weight 74 418 kg 163,200 lb

• Operating Weight: Includes lubricant, coolant, full fuel
tank, hydraulic controls and fluids, 810 mm (32 in) extreme
service shoes, 11U ABR bulldozer, single-shank ripper
with pin puller and fast fuel, engine doors (optional
equipment) and operator.

• Shipping Weight: Includes lubricants, coolant, 20% fuel,
and ROPS with FOPS cab.

Operating Weight – CD 113 000 kg 248,600 lb
Shipping Weight – CD 75 455 kg 166,000 lb

• Operating Weight: Includes lubricant, coolant, full fuel
tank, hydraulic controls and fluids, 910 mm (36 in) extreme
service shoes, 11 carrydozer, single-shank ripper
(optional equipment) and operator.

• Shipping Weight: Includes lubricants, coolant, 20% fuel,
and ROPS with FOPS cab.

D11T/
D11T CD

Track-Type Tractor

®

®

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D11T/D11T CD Track-Type Tractor

Strength from the past. Power for the future.™ The D11T/CD combines power and efficiency
with advanced technology for outstanding production at a lower cost-per-yard.

Engineered for demanding work.

The durable construction of the D11T is
well suited for tough working conditions.
Combined with the Cat

®

C32 ACERT™
engine for superior performance, fuel
economy and meeting emission targets, it
keeps material moving with the reliability
and low operating costs you expect from
Cat

®

tractors.

Work Tools

Various bulldozer blades, rippers,
winches, and other options allow
you to adapt the D11T to match your
specific application, making you more
productive. The CarryDozer blade
can handle larger loads to maximize
productivity. pg. 13

Undercarriage

The proven elevated sprocket
undercarriage isolates the drive train
components from ground-induced
impacts. The suspended undercarriage
puts more track on the ground for
higher traction and less track slip.
It absorbs shocks for a smoother ride
and longer machine life. pg. 12

Implement and Steering Controls

Electro-hydraulic implement controls
allow low operator effort for dozing
and ripping. Steering and gear selection
in a one-hand control system enhances
operator comfort. pg. 7

Cooling System

The Advanced Modular Cooling System
(AMOCS) combines higher cooling
capacity with easier servicing. AMOCS
allows the machine to be operated in the
most demanding environments with less
downtime. pg. 6

C32 with ACERT™ Technology

ACERT™ Technology works at the
point of combustion to optimize engine
performance and to provide low exhaust
emissions. Matched with the torque
divider and power shift transmission,
it provides years of dependable and
efficient service. pg. 4

✔ New Feature

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Serviceability and Customer Support

Combining easy-to-access, modular
components with your Caterpillar
Dealer’s advanced rebuild and repair
capabilities ensure rapid component
replacement and minimum downtime.

pg. 15

Safety

Caterpillar®has been and continues
to be proactive in developing machines
that meet or exceed safety standards.
Safety is an integral part of all machine
and systems designs. pg. 14

Structure

Mainframe is heavy, strong and durable.
Full box sections, steel castings and
continuous rolled rails provide durable
support to the suspended undercarriage,
elevated final drives and other integral
frame components. pg. 11

Drive Train

The electronically controlled power
shift transmission, efficient clutch/brake
steering and durable planetary final drives
deliver outstanding power transfer and
long life to ensure maximum productivity.

pg. 10

Operator Station

Designed for operator comfort,
convenience, and productivity. Machine
control and vital information is provided
at the operator’s fingertips. A full day
of work is no problem in this efficient
work place. pg. 8

✔

C32 Engine. Performing at full rated net
power of 634 kW (850 hp) at 1,800 rpm
with a high torque rise of 21 percent, the
large displacement and high torque allow
the D11T to doze through tough material.
Matched to the high efficiency torque
divider and electronically controlled
power shift transmission, it will provide
years of dependable service.

C32 Block. The block features a
design that adds structural strength
through compaction and thicker walls.
This design supports the engine’s
higher compression ratios.

Overhead Cams. Two, single (one per
head) overhead cams are driven by
gears on the flywheel end of the engine.
Placing the cam gears at the flywheel
end significantly reduces noise and
vibration. To reduce wear, two pendulum
absorbers are mounted at the front of the
camshafts. Together, these two features
contribute to the long-life and durability
of this engine.

ADEM™ A4 Engine Controller.

The ADEM A4 electronic control
module manages fuel delivery and air
flow to get the best performance per
gallon (liter) of fuel used. It provides
flexible fuel mapping, allowing the
engine to respond quickly to varying
application needs. It keeps track of engine
and machine conditions while keeping
the engine operating at peak efficiency.

Fuel Delivery. Multiple injection
fuel delivery involves a high degree
of precision. Precisely shaping the
combustion cycle lowers combustion
chamber temperatures, generating
fewer emissions and optimizing fuel
combustion; translating into more
work output for your fuel used.

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A combination of innovations working at the point of combustion, ACERT ™ Technology
optimizes engine performance while meeting EPA Tier 2 and EU Stage II engine exhaust
emission regulations for off road applications.

C32 with ACERT™ Technology

MEUI Fuel System. A highly evolved fuel

system with a proven record of reliability
in the field. MEUI combines the technical
advancement of an electronic control
system with the simplicity of direct
mechanically controlled unit fuel
injection. The MEUI system excels in
its ability to control injection pressure
over the entire engine operating speed
range. These features allow the C32 to
have complete control over injection
timing, duration, and pressure.

ATAAC and Airflow. Air-to-air
aftercooling keeps air intake
temperatures down and, in concert with
the tight tolerance combustion chamber
components, maximizes fuel efficiency
and minimizes emissions. Significant
improvements in air flow are generated
by water-cooled turbochargers, unique
cross-flow head, single rear-driven
overhead cams, and a more efficient
intake manifold.

Engine maintenance and repair.

Is easier through monitoring key
functions and logging critical indicators.
Electronic diagnostic access is possible
with the Electronic Technician (Cat ET).

Aluminum Spacer. Located between
the block and head to eliminate the
need for block counterbores, and
extend block life.

Hardened-faced valves. Through­hardened crankshaft journals and steel­backed, copper-bonded aluminum
bearings, help assure reliable performance
in the toughest duty.

Components have longer life. Because
oil-cooled pistons and full-length, water­cooled cylinder liners provide maximum
heat transfer. The cylinder heads also
utilize additional coolant passages to
provide maximum cooling to the engine.

5

Two-pass cooling system. Using a
two-pass system, the AMOCS radiator
provides a more efficient heat exchange.
The coolant is routed from a sectioned
bottom tank up the front side, over the
top of the core, and down the engine
side of the core to the bottom tank.
This flow pattern allows the coolant
to pass through the radiator twice
for better cooling.

Modular Design. The cooling elements
are individual core modules connected
to a sectioned bottom tank. There is
no top tank to remove.

• Standard 9.4 steel fins per 2.54 cm
(1 in), or an optional 6 steel fins per

2.54 cm (1 in)

• Brass tube construction within each
core for improved reliability

Hydraulically Variable, Demand Fan.

The hydraulically driven demand fan
provides engine cooling capability that
is matched to the ambient conditions.
In cooler conditions, the fan turns at a
slower speed, reducing power demands.
This frees up more power in high load
factor operations or reduces fuel
consumption in lower load factor
operations. Low speed fan operation
also reduces both operator and spectator
sound levels. The ADEM A4 engine
controller regulates the fan speed
through a variable displacement pump.
An attachment low speed option is
available for cold weather operations
to avoid over cooling the engine.

Easy Serviceability.

• Servicing of the AMOCS can
be performed without tilting the
radiator guard

• No need to remove or replace a
major component as on single-core
radiators

• Each core module can be replaced
individually (without removing the
entire radiator), saving considerable
cost and repair time

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Cooling System

Superior cooling in the most demanding work conditions.

Dozer Control Lever. A low-effort
electronic dozer control handle gives the
operator control of all dozer functions
with one hand. Fore/aft movement of
the lever lowers and raises the blade.
Left/right movement directionally tilts
the blade.

The thumb lever at the top of the
handle, controls blade pitch fore and aft.
The trigger switch pitches the blade
forward to dump the load.

The two thumb buttons to the left of the
implement control provide control over
the semi-automated blade pitch functions
that Dual Tilt provides. Blade pitch for
load, carry and spread segments can
be preset on Advisor and controlled by
the buttons. The left side button cycles
between the pitch settings for each
segment of the push cycle. The right
side button cancels out of the pitch
functions without losing the preset pitch
angles. This Auto Blade Assist (ABA)
feature is turned on and off using a
switch on the right side console.

Computer Aided Earthmoving System
(CAES) (optional). Computer Aided

Earthmoving Systems (CAES) replace
conventional surveying with advanced
GPS and radio communications
equipment, improving operator’s
accuracy and efficiency. CAES can
communicate back and forth with the
office and access site design plans.
Office software can generate designs on
the fly and provide customized production
and design reports. CAES gives operators
continuous, interactive access to machine
and operating information right in the
cab – so they have the tools they need
to operate with more precision and
predictability. An in-cab display gives
operators easy-to-understand color
diagrams of where to cut and fill.
With CAES, the effort of reading maps
or looking for grade stakes is virtually
eliminated. And because it gives
immediate, accurate feedback, operators
can doze quickly, accurately and
confidently. CAES helps identify ways
to reduce errors and constantly improve
the production process – ultimately
helping reduce cost.

AutoCarry (optional). AutoCarry provides
automatic blade control (raise and lower
only) during the carry segment of the
dozing cycle. Drawbar pull, ground
speed, track slip, and machine attitude
are integrated to control track slip and
maintain optimal blade loads. AutoCarry
is intended to enhance the operator’s
productivity in high production
earthmoving with carry distances over

30.5 m (100 ft). By monitoring ground
speed with the belly-mounted radar gun,
the auto carry system controls blade
load to maintain approximately 2.4 km/h
(1.5 mph) true ground speed. Track slip
is monitored and limited to under 16%.
Readouts of the true ground speed and
track slip are available in the AutoCarry
menu on Advisor. Through the system’s
Dynamic Inclination Sensor (DIS),
readouts of the tractor pitch angle and
side-to-side scope are also available
on Advisor.

Ripper Control Lever. A rigidly mounted
handgrip provides firm support for
the operator even when ripping in the
roughest terrain. The low effort thumb
lever controls raising and lowering.
The finger lever controls shank-in and
shank-out positioning. The thumb
button automatically raises the ripper.

Finger Tip Controls (FTC). Clustered for
easy, one-hand operation to the operator’s
left. They control steering, machine
direction and gear selection.

Electronic Clutch and Brake (ECB)
steering System – consists of two small
levers that send signals that control the
steering valve. Levers require less than
three pounds of pull to actuate. Steering
is accomplished in much the same way as
traditional clutch and brake arrangements,
but with less time and effort.

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Implement and Steering Controls

Low effort control functions significantly reduce operator fatigue for increased performance.

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Designed for operator comfort, convenience, and productivity, the state-of-the-art cab sets
a new standard.

Operator Station

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1) Steering Control. Finger Tip Control

(FTC) combines steering, machine
direction and gear selection into a single
control system, operated with one hand
for enhanced operator comfort.

2) Cat Comfort Series Seat.

Fully adjustable and designed for
comfort and support. Thick seat and
back cushions provide support for the
lower back and thighs, while allowing
unrestricted arm and leg movement.
Wide retractable seat belt provides
positive, comfortable restraint.

3) Adjustable Armrests. Standard
adjustable armrests provide additional
comfort for the operator.

4) Electronic Ripper Control. A rigidly
mounted handgrip, with low effort
thumb and finger controls, provides
firm support and positive control of
the ripper when operating in tough
conditions. Programmable features,
such as Auto Lift, Shank-Out and Auto
Stow, increase operator efficiency.

5) Electronic, Programmable Dozer
Control. Features such as blade response,

blade float, auto blade pitch, and spread
rate can be set and adjusted using the
Advisor panel. Auto Blade Assist
(standard) and AutoCarry (optional)
make the tractor even more efficient
in specific applications.

6) Cat Monitoring Display System.

The combination dash mounted
instrument cluster and the Advisor
Monitoring System provide key
machine operating data and give the
operator and service technician insight
into the machine’s operation and
maintenance needs.

In-Dash Instrument Cluster.

The instrument panel, with easy-to-read
gauges and warning lamps, keeps the
operator aware of any potential problems.
All gauges and readouts are easily
visible in direct sunlight.

Advisor Monitoring System (AMS).

On-board diagnostic abilities minimize
downtime and maximize machine
performance.

7) Wide Panoramic View. The operator
station offers an exceptional viewing
area. A large view hole in the single­shank ripper frame provides a view
of the ripper tip. The tapered hood,
notched fuel tank, and narrow single­shank ripper carriage gives the operator
a clear line of sight to the front and rear
work areas. The large single-pane door
windows provide an excellent view
to the sides and blade.

8) Heating and Air Conditioning.

Conveniently located air circulation
vents evenly distribute airflow within
the cab. Controls are easily accessible
from the operator seat.

High Intensity Discharge Lights (HID).

High Intensity Discharge lighting
packages are standard to enhance
visibility when 24 hours operations
are required. The HID lights are bluish
in color and offer less glare while
significantly extending the sightlines
around the tractor.

Fuse Panel and Diagnostic Access.

The new compartment features a single
location fuse panel that includes a
diagnostic port for the Cat ET to connect
for rapid machine diagnostics.

Comfortable Operation. Standard
isolation-mounted cab reduces noise
and vibration. The cab is pre-wired
for a 12-volt or 24-volt radio, equipped
with two speakers, an antenna and a
radio mount recessed in the headliner.

Footpads. Two footpads, mounted on
the floor and wide, sweeping stabilizer
pads keep the operator comfortable and
in control while working on slopes.

Other Features. Built-in storage space
with tie downs for lunch box or other
personal items.

• Ashtray and cup holder.

• Inside door releases.

• Power point plug-in on the right
hand console (12-volt laptop and
wireless phone compatible).

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