Milton CAT D6N User Manual

D6N

Track-Type Tractor

Engine Engine (continued)

Engine Model Cat
Emissions U.S. Tier 4 Interim/EUStage IIIB Net Power – ISO 9249 (DIN) 152 hp
Gross Power – SAE J1995 132 kW 177 hp Net Power – EU 80/1269/EEC 112 kW 150 hp
Engine Power – ISO 14396 129 kW 173 hp Weights
Engine Power – ISO 14396 (DIN) 175.3 hp Operating Weight – XL 16 507 kg 36,392 lb
Net Power – SAE J1349 110.4 kW 148 hp Operating Weight – LGP 18 096 kg 39,895 lb

®

C6.6 ACERT™ Net Power – ISO 9249 112 kW 150 hp

D6N Features

Powerful Productivity

Standard electro-hydraulic controls help improve
precision and response. Dedicated hydraulics,
differential steering and machine control systems
aid overall productivity. Features like the Eco Modes
and Auto Engine Speed Control help reduce
overallfuel use.

Operator Station

Ease of operation, cab comfort and layout help
keep operators focused and more productive.

Engine and Emissions Technology

Cat engine and aftertreatment solutions meet
EPA/ARB U.S. Tier 4 Interim, EU Stage IIIB and
MLIT (Step 4) emission standards.

Integrated Technologies

AccuGrade™ Ready Option feature means
easy installation of the performance enhancing
CatAccuGrade™ system. Cat Product Link
helpsmaximize utilization and control costs.

Serviceability and Customer Support

Ease of service, Cat dealer expertise and machine
rebuild capability help to reduce overall owning
and operating costs.

Contents

Operator Station ..................................................3

Engine ...................................................................3

Emissions Technology ........................................4

Powertrain............................................................5

Implement and Steering Controls ....................6

Integrated Technologies ....................................7

Cooling System ....................................................8

Undercarriage .....................................................9

Work Tools ..........................................................10

Rear Implements ...............................................11

Sustainability .....................................................12

Value Packages .................................................13

Serviceability and Customer Support ............14

D6N Track-Type Tractor Specications ........15

D6N Standard Equipment ................................18

D6N Optional Equipment ..................................19

The D6N has earned reputation of being the machine
thatcan be trusted to perform. It keeps material moving
with the reliability, durability and comfort you expect
from Cat® machines. It is engineered to excel on the most
demanding worksites and in every job – from production
dozing to ne grading.

The new D6N not only combines this proven reliability
with technologies reducing emissions. Itfurther improves
fuel efciency and productivity, all the more when
equipped with the latest technologies for which it
isanexcellent platform.

Today’s D6N is the best choice for customers in need of
aversatile, easily transportable machine to do the job and
help them meet their business objectives atalower cost.

Operator Station

Designed for comfort, safety and high productivity

An isolation-mounted pressurized cab reduces dust entry,
noise and vibration. Large glass panels provide excellent
visibility. Intermittent wipers maximize visibility in poor
weather conditions. Heating and air conditioning controls
are conveniently located. Temperature control is automatic.

Updated dash and instrumentation streamline the display in
a format that is more common across the Cat tractor line and
keep the operator aware of any important information in his
own language. Brightness and contrasts can be adjusted.

Fully adjustable, the air suspended seat includes bolsters
torestrain side-to-side movement and steep slope footpads
ensure a comfortable position when working on slopes.

The cab is pre-wired for a radio and includes two speakers,
an antenna and a radio mount. A 10-Amp, 12-volt power
converter provides supplemental power for cellular phones
ortwo way radios. The cab also features convenient storage
compartments, a cup and coat holder.

Engine

Power and reliability

The D6N features a Cat C6.6 ACERT™ engine and a
CatClean Emission Module to deliver the performance
that customers demand, while meeting U.S. Tier 4 Interim,
EU Stage IIIB and JapanMLITStep 4 emission standards.

The Cat C6.6 is an in-line congured engine. The ACERT
Technology features advanced electronic control, precision
fuel delivery, rened air management and aftertreatment
technologies. The system is optimized based on engine size,
the type of application and the geographic location in
which it will work. To assure that our Tier 4 Interim
technology will meet our customers expectations for
reliable trouble-free service, we subjected these products
toover one million operating hours of test and validation
before sale of the rst Tier 4 Interim machine.

3

Emissions Technology

Reliable and transparent integrated solutions

Cat NOx Reduction System

The Cat NOx Reduction System captures and cools a small
quantity of exhaust gas, then routes it into the combustion
chamber where it drives down combustion temperatures
andreduces NOx emissions.

Aftertreatment Technologies

Cat aftertreatment components have been designed to
matchapplication needs. System components include a
DieselOxidation Catalyst (DOC), which uses a chemical
process to convert regulated emissions in the exhaust system,
and a Diesel Particulate Filter (DPF) that traps and removes
soot until burnt off through regeneration. The DOC and
DPFare contained in the Clean Emissions Module (CEM)
thatprotects the components and simpli es maintenance.
TheCEM will control if regeneration needs to occur
andsootlevel is monitored through the display.
Theaftertreatment is designed to remove particulate
matterfrom the exhaust without the need for operator
intervention or work cycle interruption.

Cat Low Temperature Regeneration System

The low temperature Passive Regeneration system works
transparently, without any interaction needed from the
operator. Under most conditions, engine exhaust will remove
soot through passive regeneration. If supplemental regeneration
is needed, the system will automatically activate the exhaust
back pressure valve to supplement regeneration. This will
result in burning off soot in the DPF.

The Cat Low Temperature Passive Regeneration System
allows fast and accurate control of regeneration independent
of engine exhaust temperatures, even in case of low load
application or cold ambient temperatures.

Engine Idle Shutdown Timer – This option (when activated
bythe operator) shuts down the engine after the machine
hasbeen idling for a pre-set period of time.

Automatic Engine Speed Control (AESC) – It reduces engine
speed when the machine is not under load for more than
veseconds, which can help reduce fuel consumption
signicantly depending on the application.

Powertrain

Efcient, smooth and responsive power

The power shift transmission and differential steering work in tandem with the engine to deliver
thepower, productive performance and reliability expected from Cat track-type tractors.

High Efciency Torque Divider

The torque divider acts as a hydrodynamic component between the engine and transmission to provide high
multiplication of torque and attain the best combination of operating efciency and driveline reliability.

Differential Steering System

Differential steering maintains full power to both tracks to provide best-in-class turning with a loaded
blade. When one track speeds up, the other slows down an equal amount. Maneuverability is improved,
as well as cycle times in some applications.

Multi Velocity Program (MVP)

Maximize your production and fuel efciency with this exclusive feature, which let you choose from
different engine speed ranges to best match your applications and ground conditions.

ECO Modes

Standard Eco Modes (when activated) automatically reduce engine speed and are suited for light to
medium loaded applications. Operators can select either the “reverse only” or the “forward and reverse”
mode. Eco Modes can help save up to 25% of fuel depending on the application.

5

Implement and Steering Controls

Ergonomically designed for ease of operation

All controls are electro-hydraulic, which means precision and
maneuverability. They are ergonomically designed for easy
intuitive, comfortable and low effort operation. Blade response
can be adjusted through the operator prole in the display.

Steering and Transmission Controls: All in One Hand

Differential steering controls give the maneuverability and
precision needed in close areas or around structures. The single
handle controls the direction (FNR switch) and degree of
turns, forward-reverse shifting and gear selection.

The thumb roller shifts the electronically controlled transmission
and its Ground Speed Adjustment function enables precise
speed control. The Speed Recall function allows you to easily
save and recall the speed (forward) you want to operate with.

Dozer and Rear Attachment Control Levers

• Dozer Control Joystick. The lever allows six-way control

ofthe VPAT blade and the thumb rocker adjusts the
blade angle. Standard electro-hydraulic control means
simplied installation of the AccuGrade™ system.

• Integrated Ripper/Winch Lever. Rear attachments are

controlled by the same lever and controls can be
pre-congured for a ripper, a winch or both of them.

Throttle Rocker Switch

Press the Throttle Rocker switch, it will adjust the engine
speed to high or low idle. Press and hold until desired engine
speed is attained and then release, the machine will maintain
this new chosen speed.

Implement/Work Tool Lock-Out Switch

Lock-out feature prevents inadvertent operation of hydraulic
work tool attachments.

Auto-Shift/Auto-Kickdown Switch

The Auto-Shift function allows a pre-selection of four forward
and reverse speed settings that will occur automatically for
easy, efcient directional changes. Auto-kickdown allows the
transmission to automatically downshift when signi cant
loadincreases are detected, maximizing your productivity.

Integrated Technologies

Solutions to make work easier and more efcient

AccuGrade Ready Option

The AccuGrade Ready Option (ARO) provides the pre-assembly that is required to make the AccuGrade machine control and
guidance system installation quick and easy, ready to plug and play. The display support has been redesigned and makes the
installation or removal of the display easier, thanks to two latches on the top of it.

AccuGrade

AccuGrade is a dealer installed machine control and guidance system which enables operators to cut and ll to grade with
increased accuracy, minimizing the need for traditional stakes and grade checkers.

AccuGrade uses advanced Laser, Global Navigation Satellite System (GNSS) and/or Universal Tracking Station (UTS) technology,
machine-mounted components and off-board hardware. This state-of-the-art machine control system provides precise elevation
information on an in-cab display to achieve accurate blade positioning. By displaying real-time cut/ll information in the cab,
operators can improve their efciency and get to grade faster with fewer passes than ever before. TheAccuGrade System
signicantly improves the productivity and accuracy of grading equipment – by as much as 50 percent over conventional methods.

Rough Grade

The D6N AccuGrade now includes the Rough Grade function; it allows the operator to control the tilt manually as long as the
blade center is above design, while the AccuGrade system controls the blade height. When the blade center reaches the grade,
an auto-lift control prevents the blade from going further down. This can increase your performance when operating manually.

Cat Product Link

Remote monitoring with Product Link improves overall eet-management effectiveness. Product Link is deeply integrated into
machine systems. Events and diagnostic codes, as well as hours, fuel, idle time and other detailed information are transmitted
toa secure web based application, VisionLink™. VisionLink includes powerful tools to convey information to users and
dealers, including mapping, working and idle time, fuel level and more.

7

Cooling System

Durable and efcient

The engine radiator, Air To Air After Cooler (ATAAC),
andhydraulic oil cooler are packaged in a single plane.
Aluminum bar plate construction provides durability and
allows for higher heat transfer and superior corrosion resistance.
The standard cores feature 8.9 ns per inch (6.5ns per inch
for the WasteHandling Arrangement) to allow debris to
passthrough and reduce plugging concerns.

The engine mounted demand fan provides engine cooling
capability that is matched to the ambient conditions.
Fanspeed is adapted to the cooling load and reduced
whenitis not needed to save fuel.

An optional manual reversible fan allows fan blades to be
reversed manually to get opposite cooling air  ow when
ambient temperature is low.

A sand blast grid can be located between radiator and fan
andprotects radiator from abrasive materials and debris.

The new engine air lter strategy includes a cyclone
precleanerthat can be cleaned up several times simply
withpressurized air.

The air conditioner is mounted at the rear of the cab
foroptimum ambient capability.

8

Undercarriage

Robustness and Performance

The D6N features the elevated sprocketdesign that isolates nal drives, axles, and steering components
from harsh impacts. The modular design aids to reduce maintenance costs. A variety of undercarriage
congurations and track shoe designs help optimize performance.

SystemOne™ Undercarriage

SystemOne can help reduce owning and operating costs in many applications. Lifetime sealed and
lubricated cartridges eliminate bushing turns and sprockets require no replacement during the life of
the chain. AllSystemOne undercarriage components are designed towork and wear as a system for
longer track life.

Heavy Duty Undercarriage

Heavy duty undercarriage is well-suited to aggressive applications like land clearing, side-slopes, or
working inrocky or uneven terrain. Components are designed forextended wear life in abrasive
conditions andhigh impact applications.

XL, LGP and XL Fine Grading Versions

The XL version performs well in applications with rm to soft underfoot conditions. The LGP undercarriage
is designed for soft and swampy conditions. The XL Fine Grading version combines the LGP roller frame
length with XL shoes for nish grading applications. All machines now have a stiffer equalizer bar,
whichenhances nish grading capabilities.

9

Work Tools

Equipped for the job

Load Sensing Hydraulics

Field-proven, load-sensing hydraulics respond to operating
requirements by automatically and continually adjusting
hydraulic power to maximize work tool ef ciency.

Bulldozer and Blade Design

The D6N features a new large spherical linkage bearing for
aneasier blade removal. Linkage bearings are designed for the
life of the machine.

VPAT blades now come AccuGrade Ready from factory with
mounted brackets for AccuGrade receivers. AccuGrade angle
sensor are better protected in the new centered position.
Strong design allows Cat blades to stand up to the most
severeapplications.

Variable Pitch Angle Tilt (VPAT) Blade

This blade allows the operator to adjust the blade lift, angle
and tilt simultaneously, using the same control. The blade
pitch can also be adjusted, which can help increase productivity.
Changing the blade pitch angle is now easier with the new
pitch system.

The versatility of the VPAT blade gives the D6N the ability
totake on a variety of applications and material conditions,
such as nish grading, spreading material or back lling.
Fulltrack coverage can be achieved in one pass.

10

VPAT Foldable Blade

Designed to facilitate transportation without blade removal,
foldable blades reduce the overall shipping width. The blade
can be easily folded without the need for tools, and its design
has been improved to make the folding process easier and
quicker, with only one pin left to remove.

Semi-Universal (SU) Blades (for XL versions only)

This blade is built for tough applications where penetration
and capacity are important. L-shaped push arms bring the
blade closer to the machine, providing excellent maneuverability,
balance and stability. When end bits are removed, the blade
width reduces to 3 m (9.8 ft) to allow easier transportation.

Rear Implements

Increased versatility

Multi-Shank Ripper

Parallelogram linkage design allows for better penetration and maneuverability in tight working areas.

Winch

For improved winch availability and con guration exibility, dealers may order the D6N with a factory
installed winch preparation package to allow the winch to be easily installed in the eld. A single lever
control actuates both clutch and brake functions to help improve operator efciency. See your Catdealer
for available winch options.

A dual control package is also available for machines that can be tted either with a ripper or a winch.

Drawbar

The D6N can be equipped with a drawbar for retrieving other equipment or pulling work tools such
asdiscs, compactors, orchopper wheels.

11

Sustainability

Thinking generations ahead

The Cat D6N is designed to benet your business,
andreduceemissions.

• Meets U.S. Tier 4 Interim, EU Stage IIIB and
JapanMLITStep 4.

• Fuel efcient engine, and features like the new
EcoModesReverse and Forward/Reverse, Auto Engine
Speed Control and the viscous clutch demand fan, help
decrease overall fuel consumption.

• Technologies like AccuGrade and Product Link help
improve overall efciency, save fuel and uids, as well
aswear and tear on equipment.

• The D6N can be run on Biodiesels (20%maximum,
mixedwith Ultra Low Sulfur Diesel Fuel) without
reducing the life of the system. Biodegradable hydraulic
oil is alsoavailable.

• Standard ecology drains provide an environmentally
safermethod to drain uids from major components.

• Great visibility, grab handles, steps, remote pressure
portsaccessible from ground level help enhance job
sitesafety.

• Major components are built to be rebuilt, eliminating
waste and saving customers money by giving the
machineand/or major components a second –
andeventhird – life.

12

Value Packages

Get more for less.

Feature Packages

Ripper or Winch Ready Packages – Includes hydraulics, wiring and controls that are necessary to install

aripper or a winch to increase exibility and reduce downtime.

Dual Control Ready Package – Offers versatility for customers who want to use a ripper and a winch on
the same machine. Includes a common lever for both attachments and the necessary hydraulics to make
installation easier.

Maintenance Package – Includes fast fuel and high speed oilchange capability.

Application packages

Various Heavy Duty Guard Packages – Several guard packages are available. Contact your Cat dealer

formore information on these packages.

Forestry Package – This package includes several heavy dutyguards for land clearing and forestry
applications. Extensive Guarding helps protect critical machine components. A debris resistant cooling
system helps reduce plugging and extend service life.

Waste Handling Package – Recommended for Landll applications, it includes several Heavy Duty guards,
protections and special nal drive / Idler seal guards. They help keep damaging wires or debris out of
the nal drive and idler seals.

Improved Cold Weather Package – The standard machine includes glow plugs allowing aproperly
maintained engine to start at minus 18°C (0° F) with standard oil. Thecold weather package includes
ether starting aid, heavy duty batteries and 120V/240V jacket water heater that can bear temperatures
below 18°C (0° F) with cold uids at sea level. An optional electrical heated and insulated breather
canister with a special coolant can bear –50° C (58° F).

Contact custom products for waste handling, forestry and other specic application requirements.

13

Serviceability and Customer Support

When uptime counts

Accessible, Quick and Easy Maintenance

Hinged engine doors provide easy access to grouped
maintenance points. The engine air lter can be easily removed
for inspection. A standard electric priming pump reduces
efforts and time to prime the system. Service doors on the rear
provide easy access to grouped pressure taps for quick testing
of the Hydraulic system. A grease gun holder is located on the
rear compartment.

Secured Maintenance

Steps and handles make climbing on and off the tractor
easyand safe. Anti-slip surfaces are located on every needed
surface for more safety while moving on the machine.

Operator Presence Detection strategy and work tools lock-out
provide additional protection by preventing unintentional
movements that could make the machine move.

Maintenance Monitoring

Diagnostic connectors allow Cat dealers to quickly troubleshoot
the machine. The exible monitoring system offers more
diagnostic capabilities like the engine oil low level. These features
are blacked up by the Product Link.

Robust, Convenient and Modular Design

Components are designed to be robust with structures
reducing stress concentration and interferences. The modular
design allows them to be easily removed without removing
others. This means less service time.

Renowned Cat Dealer Support

From helping you choose the right machine to knowledgeable
ongoing support, Cat dealers provide the best in sales and
service. Manage costs with preventive maintenance programs
like Scheduled Oil Sampling (S·O·SSM) analysis, and guaranteed
maintenance contracts. Stay productive with best-in-class
parts availability. Cat dealers can even help you with operator
training to help boost your prots. And when it’s time for
machine replacement, your Cat dealer can help you save even
more with Genuine Cat Remanufactured parts. Receive the
same warranty and reliability as new products at cost savings
of 40 to 70 percent for powertrain and hydraulic components.

D6N Track-Type Tractor Specications

Engine Service Re ll Capacities Undercarriage

Engine Model Cat® C6.6 ACERT™ Fuel Tank 299 L 79 gal Width of Shoe – XL 610 mm 24.01 in

Emissions U.S. Tier 4 Interim, Cooling System 40 L 10.56 gal Width of Shoe 840 mm 33.07 in

EU Stage IIIB, – LGP
JapanMLIT Step 4

Gross Power 132 kW 177 hp
– SAE J1995

Engine Power 129 kW 173 hp
– ISO 14396

Engine Power 175.3 hp
– ISO 14396 (DIN)

Net Power 112 kW 150 hp
– ISO 9249

Net Power 152 hp
– ISO 9249 (DIN)

Net Power 110.4 kW 148 hp
– SAE J1349

Net Power 112 kW 150 hp
– EU 80/1269/EEC

Engine Speed 116.8 kW 156.6 hp
1,850 rpm – Net Power

Bore 105 mm 4.13 in

Stroke 127 mm 4.99 in

Displacement 6.6 L 402.75 in

• Engine Ratings at 2,200 rpm.

• Net power advertised is the power available
at the engine ywheel when the engine
is equipped with the air cleaner, muf er,
alternator, A/C compressor at full load,
cooling fan at max speed.

• No derating required up to 3000 m (9,840 ft)
altitude, beyond 3000 m (9,840 ft) automatic
derating occurs.

Transmission

1.5 Forward 3.1 km/h 1.93 mph

2.0 Forward 4.6 km/h 2.86 mph

2.5 Forward 5.7 km/h 3.54 mph

3.0 Forward 7.5 km/h 4.66 mph

3.5 Forward 10 km/h 6.21 mph

1.5 Reverse 3.1 km/h 1.93 mph

2.0 Reverse 5.1 km/h 3.17 mph

2.5 Reverse* 6.4 km/h 4 mph

3.0 Reverse* 8.5 km/h 5.28 mph

3.5 Reverse* 11.6 km/h 7.21 mph

1.5 Forward 320 kN 71,939 lb

– Drawbar Pull

2.5 Forward* 175 kN 39,341.6 lb

–Drawbar Pull

3.5 Forward* 97 kN 21,806.5 lb

–Drawbar Pull

* Eco Modes disabled. With Eco Modes

enabled, speed settings will change.

Final Drives (each) 8.5 L 2.25 gal

Hydraulic Tank 29.5 L 7.79 gal

Weights

Weight* 1276.5 kg 2,814 lb

Operating Weight 16 507 kg 36,392 lb
– XL

Operating Weight 18 096 kg 39,895 lb
– LGP

Shipping Weight 16 149 kg 35,602 lb
– XL

Shipping Weight 17 594 kg 38,788 lb
– LGP

XL VPAT Blade 1062 kg 2,341 lb

LGP VPAT Blade 1234 kg 2,720 lb

XL VPAT Foldable 1253 kg 2,762 lb

LGP VPAT Foldable 1491 kg 3,287 lb

XL SU Blade 2600 kg 5,732 lb

XL VPAT Landll 1321 kg 2,912 lb

3

LGP VPAT Landll 1436 kg 3,166 lb

Multi-shank Ripper 1562 kg 3,444 lb
(with 3 shanks)

Winch PA55 See value and note,

next page

• Operating Weight: Includes EROPS, A/C,
lights VPAT dozer, transmission, drawbar,
engine enclosure, 3-valve hydraulics,
100% fuel, and Cat Comfort Series Air
Suspension Seat and operator.

• Shipping Weight: Includes EROPS, A/C,
lights VPAT dozer, transmission, drawbar,
engine enclosure, 3-valve hydraulics, 5% fuel,
and Cat Comfort Series Air Suspension Seat.

* Weight: Includes pump, operator controls,

oil, mounting brackets and spacers.

Shoes/Side – XL 40

Shoes/Side – LGP 46

Grouser Height – XL 66 mm 2.6 in

Grouser Height 57 mm 2.2 in
– LGP

Track Gauge – XL 1890 mm 74.4 in

Track Gauge – LGP 2160 mm 85.03 in

Track on Ground 2611 mm 102.8 in
– XL

Track on Ground 3113 mm 122.56 in
– LGP

2

Ground Contact 3.18 m

4,929 in

Area – XL

Ground Contact 5.23 m

2

8,107 in

Area – LGP

Ground Pressure 52.3 kPa 7.59 psi
– XL

Ground Pressure 34.4 kPa 7.63 psi
– LPG

Track Rollers/Side 7
– XL

Track Rollers/Side 8
– LGP

Drawbar Pull

lb x kg x

1000 1000

80

300

60

200

40

Drawbar Pull

100

20

0

0

The direct injection electronic fuel system
provides a controlled fuel delivery increase
as the engine lugs back from rated speed.
This results in increased horsepower below
rated power. A combination of increased
torque rise and maximum horsepower
improves response, provides greater drawbar
pull and faster dozing cycles.

D6N Drawbar Pull

0 2 4 6 8 10

1.5 2.0 2.5 3.0 3.5

0 1 2 3 4 5 6 7

km/h

mph

Speed

2

2

15

D6N Track-Type Tractor Specications

Blades Winch Sound Information and Vibration

Blade Type VPAT, SU Winch Model PA55

XL VPAT– 3.18 m

3

Blade Capacity

LGP VPAT– 3.16 m

3

Blade Capacity

LGP Foldable 3.16 m

3

BladeCapacity

XL SU – 4.28 m

3

Blade Capacity

XL VPAT – 3272 mm 10 ft 9 in
Blade Width

LGP VPAT – 4080 mm 13 ft 5 in
Blade Width

XL Foldable 4080 mm 13 ft 5 in
BladeWidth

XL SU – 3154 mm 10 ft 4 in
Blade Width

XL SU – Narrow* 3000 mm 9 ft 10 in
Blade width

* For Europe only; Width is with end bits

removed; Blade width with end bits is
3126mm (10 ft).

Ripper

4.16 yd

4.13 yd

4.13 yd

5.6 yd

3

Oil Capacity 74 L 19.55 gal

Winch and Bracket 1145 mm 45.1 in

3

Length

Winch Case Width 975 mm 38.4 in

3

Drum Diameter 254 mm 10 in

Drum Width 315 mm 12.4 in

3

Flange Diameter 504 mm 19.8 in

Drum Capacity – 88 m 288 ft 9 in
22 mm (0.88 in)

Winch Drive Mechanical

Control Electric

Overall Width 975 mm 38.4 in

Rope Diameter 19 mm 0.75 in
(recommended)

Cable Ferrule Size 54 mm × 2.13 in ×
(O.D. × Length) 67 mm 2.63 in

Maximum Bare Drum

Line Pull 31 388.5 kg 69,200 lb

Line Speed 44.8 m/min 147 ft/min

Maximum Full Drum

Line Pull 23 539 kg 54,100 lb

Line Speed 78.3 m/min 257 ft/min

Type Fixed Parallelogram

Pocket Spacing 1000 mm 3 ft 3.4 in

• Slow and standard speed winches are
available.

Shank Gauge 2 m 6 ft 7 in

Shank Section 73 mm × 176mm

2.9 in × 6.9 in

Number of Pockets 3

Overall Beam Width 2202 mm 86.7 in

Beam Cross Section 216 mm × 254 mm

8.5 in × 10.0 in

Maximum Clearance, 622 mm 24.5 in
Raised (Shank Tip)

Maximum 51.6 kN 11,600 lbf
Penetration Force
– XL

Maximum Pry-out 211.2 kN 47,480 lbf
Force – XL

Maximum

43 kN 9,667 lbf
Penetration Force
–LGP

Maximum Pry-out 170 kN 38,217 lbf
Force – LGP

Number of Pockets 3
in Ripper Beam

Standards

ROPS/FOPS ROPS (Rollover Protective

Structure) offered by
Caterpillar for the machine
meets ROPS criteria
SAEJ1040-1994,
ISO3471:2008 and DLV
criteria SAE J397B-2009,
ISO3164:1995.

FOPS (Falling Object
Protective Structure) meets
ISO3449-2005 Level II
and DLV criteria
SAEJ397B-2009,
ISO3164:1995.

Brakes Brakes meet the standard

ISO 10265:2008 and
ISO3449:2008

Cab Meets appropriate

standards as listed in
thefollowing section

Maximum 514 mm 20.2 in
Penetration – XL

Maximum 398 mm 15.6 in
Penetration – LGP

Each Additional 78 kg 172 lb
Shank

Weight: 1562 kg 3,444 lb
with3Shanks

16

Information

Sound Level Information

• The declared operator Equivalent Sound
Pressure Level (Leq) is 83 dB(A) when
“ANSI/SAE J1166 FEB2008” is used
tomeasure the value for an enclosed cab.
Themeasurement was conducted at 100%
of the maximum engine cooling fan speed.
This is a work cycle sound exposure level.
The cab was properly installed and
maintained. Thetest was conducted with
the cab doors and the cab windows closed.

• Hearing protection may be needed when
the machine is operated with an open
operator station for extended periods or
ina noisy environment. Hearing protection
may be needed when the machine is operated
with a cab that is not properly maintained,
or when the doors and windows are open for
extended periods or in a noisy environment.

• The declared average exterior sound pressure
level is 83 dB(A) when the “SAEJ88
FEB2006 – Constant Speed Moving Test”
procedure is used to measure the value for
the standard machine. The measurement
was conducted under the following
conditions: distance of 15 m (49.2ft)
and“the machine moving forward
inanintermediate gear ratio.”

Sound Level Information for Machines
inEuropean Union Countries and in
CountriesthatAdopt the “EU Directives”

The information below applies to only the
machine congurations that have the “CE”
mark on the Product Identi cation Plate.

• The declared dynamic operator sound
pressure level is 78 dB(A) when
“ISO6396:2008” is used to measure the
value for an enclosed cab. The measurement
was conducted at 100% of the maximum
engine cooling fan speed. The sound level
may vary at different engine cooling fan
speeds. The cab was properly installed
andmaintained. The measurement was
conducted with the cab doors and the
cabwindows closed.

• If equipped, the certi cation label–
110dB(A) – is used to verify the
environmental sound certi cation of
themachine to the requirements of the
European Union. The value that is listed
on the label indicates the guaranteed
exterior sound power level (Lwa) at the time
of manufacture for the conditions that are
specied in “2000/14/EC.” Your machine
may have a different value.

Dimensions

(approximate)

3

8

1
2

7

4
5

9

6

Tractor Dimensions

XL LGP XL Fine Grading

1 Track gauge 1890 mm 74.4 in 2160 mm 85 in 1890 mm 74.4 in
2 Width of tractor

With the following attachments:

Standard shoes without blade 2500 mm 98.4 in 3000 mm 118 in 2500 mm 98.4 in
Narrow shoes without blade 2450 mm 96.5 in 2870 mm 113 in 2450 mm 96.5 in
Standard shoes with VPAT blade fully angled 3015 mm 118.7 in 3768 mm 148.3 in 3015 mm 118.7 in
Standard shoes with VPAT blade foldable 2545 mm 100 in 3000 mm 118 in 2545 mm 100 in

3 Machine height from tip of grouser:

With the following equipment:

Exhaust stack 2979 mm 117.3 in 3083 mm 121.4 in 3083 mm 121.4 in
ROPS cab 3088 mm 121.57 in 3190 mm 125.6 in 3202 mm 126 in

From ground face of shoe 394 mm 15.5 in 507 mm 20 in 507 mm 20 in

4 Length of track on ground 2611 mm 102.8 in 3113 mm 122.56 in 3206 mm 126 in
5 Length of basic tractor (with drawbar) 3805 mm 149.8 in 4146 mm 163.2 in 4400 mm 173 in

With the following attachments, add to basic tractor length:

Ripper (with tip at ground line) 1026 mm 40.4 in 1026 mm 40.4 in 1026 mm 40.4 in
PA55 winch 381 mm 15 in 381 mm 15 in 381 mm 15 in
VPAT blades, straight 1343 mm 52.8 in 1705 mm 67.1 in 1705 mm 67.1 in
VPAT blade, angled 25° 1965 mm 77.3 in 2487 mm 87.9 in 2487 mm 87.9 in
SU blade 1417 mm 55.8 in — —

6 Height over stack from tip of grouser 2979 mm 117.3 in 3083 mm 121.4 in

3093 mm 122 in

7 Height of grouser 66 mm 2.6 in 57 mm 2.2 in 57 mm 2.2 in
8 Ground clearance from ground face of shoe (per SAE J1234) 394 mm 15.5 in 507 mm 20.0 in 508 mm 20 in
9 Drawbar height (grouser tip to center of clevis)

From ground face of shoe 595 mm 22.2 in 710 mm 28 in 709 mm 28 in

17

D6N Standard Equipment

Standard equipment may vary. Consult your Cat dealer for details.

ELECTRICAL

Horn
Hour meter
Back-up alarm
12V converter, 10A
Diagnostic connector
950 CCA class 31 batteries
Integrated lights four (4) front
andtwo(2)rear
105 Amp HD brushless alternator (24Volt)
24 Volt heavy duty electric starter

OPERATOR ENVIRONMENT

ROPS/FOPS cab
Integrated A/C with automatic
temperaturecontrol
Seat, air suspension, cloth for cab
76 mm (3 in) retractable seat belt
Adjustable armrests
Foot rests for slope work
Gen III ve gauge instrument cluster with:

– Engine coolant temperature
– Transmission oil temperature
– Hydraulic oil temperature
– Fuel level
– Engine RPM display/gear display
– Operator pro le
– Electronically programmable gear

selector

– Electronic engine air cleaner

serviceindicator

– Electronic water-in-fuel sensor

serviceindicator
Electro-hydraulic implement control
Electro-hydraulic tiller bar differential
steering control
Product Link ready
One (1) 12 volt power points
12V radio ready (plug and play)
Storage compartment
Cup holder (LH)
Coat hook
Rearview mirror

POWER TRAIN

C6.6 Cat ACERT diesel engine with
aftertreatment, EPA/ARB Tier 4 Interim/
EU Stage IIIB and Japan MLIT Step 4
certied; common rail fuel system,
ADEMA5 Electronic Control Module,
andan air-to-air aftercooling; single
poly-vee belt with auto belt tensioner
Glowplug starting aid
3000 m altitude (9,840 ft) operation
capability before derating
Engine driven viscous clutch fan
Aluminum bar plate cooling system
(radiator, power train, aftercooler)
Steel tube-n differential steer oil cooler
Air cleaner with integrated precleaner,
automatic dust ejector and under hood
airintake
Electric fuel lift pump with automatic
priming function
Two (2) fuel  lters
Engine decelerating function (toggle switch
and pedal engine speed control)
Three (3) speed planetary, power-shift
transmission with torque converter
System MVP: multiple speed functionality
providing 5 discrete ground speed selections
and electronic control enhancements for
thetransmission/engine system
Controlled throttle shifting with automatic
load compensation
Automatic down-shift and kick-down
transmission control
Selectable auto-shift
(1F-2R, 2F-2R, selectable)
Steering system: differential steering
withelectro-hydraulic control tiller bar

UNDERCARRIAGE

SystemOne undercarriage for XL and
LGPundercarriages
Relieved tread idler
Lifetime lubricated track rollers
(7 XL and 8 LGP) and idler
Carrier roller
Replaceable sprocket rim segments
Tracks 40 section – 610 mm (24 in) Extreme
Service (ES) for XL
Tracks 46 section – 840 mm (33 in)
Moderate Service (MS) for LGP
Hydraulic track adjusters
Replaceable sprocket rim segments

HYDRAULICS

Three (3) valve-hydraulics for VPAT dozer
Load sensing hydraulics

FLUIDS

Antifreeze coolant (–37° C/–34.6° F)
Extended life coolant
Cat HYDO Advanced 10 Hydraulic Fluid

OTHER STANDARD EQUIPMENT

C Frame, cylinders (VPAT) and lines
Bulldozer VPAT XL or LGP
StandardPackage
Extended service intervals (500 hours engine,
1,000 hours power train)
Crankcase guard
Ecology drains (engine oil, engine coolant,
power train case, hydraulic)
Scheduled Oil Sampling ports
(engine,power train, hydraulics)
Centralized remote mounted pressure taps
for easy access and diagnostics
Implement oil  lter
Front pull device
Hinged radiator louvered grill
Lockable engine enclosures
Rigid drawbar
Guard rear standard

18

Optional equipment may vary. Consult your Cat dealer for details.

D6N Optional Equipment

FEATURE PACKAGES

Application Packages

Forestry Protection, XL Package
Forestry Protection Package LGP
Waste Handling Package XL for
SystemOne and Heavy Duty U/C
Waste Handling Package LGP for
SystemOne and Heavy Duty U/C

Rear Control Packages

Ripper Ready Package
Winch Ready Package
Dual Control Package, VPAT
Dual Control Package, SU
No Rear Attachment, VPAT

Protection Packages

Cab, Protection Package
Handle, No Sweeps

POWER TRAIN

Precleaner, Turbine with Screen
Demand Fan, Manual Reversible
Grid, Sandblast

COOLING

Radiator, Trash Resistant

UNDERCARRIAGE

XL Undercarriage

Undercarriage, SystemOne, XL

Undercarriage, Heavy Duty, XL

U/C HD High Double Flange, XL

U/C Waste SystemOne, XL

U/C Waste Heavy Duty, XL

U/C Fine Grading SystemOne, XL

U/C Fine Grading Heavy Duty, XL

LGP Undercarriage

Undercarriage, SystemOne, LGP

Undercarriage, Heavy Duty, LGP

U/C HD High Double Flange, LGP

U/C Waste SystemOne, LGP

U/C Waste Heavy Duty, LGP

Track Pairs, XL, SystemOne

Track, 560 mm (22 in), ES, XL

Track, 610 mm (24 in), ES, XL

Track, 610 mm (24 in), ES,

CenterHole,XL

Track, 610 mm (24 in), MS,

Fine Grading Undercarriage

Track Pairs, XL, HD

Track, 600 mm (23.6 in), ES, XL, HD

Track, 600 mm (23.6 in), ES Center Hole,

XL,HD

Track, 600 mm (23.6 in), MS, XL, HD,

Fine Grading Undercarriage

Track Pairs, LGP, SystemOne

Track, 840 mm (33 in), ES, LGP

Track, 840 mm (33 in), MS, LGP

Track, 860 mm (33.8 in), ES, LGP

(ADSDNonly)

Track Pairs, LGP, HD

Track, 840 mm (33 in), ES, LGP, HD
Track, 840 mm (33 in), ES, Center Hole,
LGP,HD
Track, 860 mm (33.8 in), ES, LGP, HD
Track, 865 mm (34 in), Self Clean

TRACK GUIDING GUARDS
ARRANGEMENTS

Track Guiding Guards, XL, SystemOne

Guard Guiding, Center
Guard Guiding, Front and Rear
Guard Guiding, Full

Track Guiding Guards, XL, HD

Guard Guiding Center, HD
Guard Guiding, Front and Rear
Guard Guiding, Full

Track Guiding Guards, LGP, SystemOne

Guard Guiding, Center
Guard Guiding, Front and Rear
Guard Guiding, Full

Track Guiding Guards, LGP, HD

Guard Guiding Center, HD
Guard Guiding, Front and Rear

HYDRAULICS

Oil, Bio Hydr., Factory Filled

STARTERS, BATTERIES AND
ALTERNATORS

Weather Packages and Batteries
Cold Weather, 120V, Package
Cold Weather, 240V, Package
Battery, Heavy Duty
Electrical Insulated Breather

FLUIDS

Antifreeze, –50° C (–58° F)

OPERATOR ENVIRONMENT

Seat, Heated
Seat, Heated and Ventilated

TECHNOLOGY PRODUCTS

Product Link Communications

Cat Product Link 321 – Satellite
Cat Product Link 522 – Cellular
No Product Link (For countries where
the Product Link isnot certied for use)

AccuGrade Control

ARO Installation, VPAT
AccuGrade ARO, SU
No AccuGrade Installation SU
(For SU machines not AccuGradeReady)

Machine Security Systems

Security System, Machine

FUEL SYSTEMS

Tank, Fuel

Maintenance Package/
ShawFastFillSystem

GUARDS

Protection Packages

Guard, VPAT, Heavy Duty, Package
Guard Package Standard, SU
Guard Package Heavy Duty, SU

Rear Hydraulic Protections

Guard, Rear, Heavy Duty
Guard, Rear, Winch Ready and Drawbar
Guard, Vandalism, Rear
Guard, Vandalism, Rear (HD)

Protection

Screen, Protective, Cab

OTHER ATTACHMENTS

Rear Hydraulics

PTO Filter, Winch – Low
PTO Filter, No Winch

BLADES

Bulldozer Package

Bulldozer, SU XL, Package–
Completewith Blade Included
Bulldozer, VPAT XL, HD, Package
Bulldozer, VPAT LGP, HD, Package

Blades

Blade XL, ARO, VPAT
Blade LGP, ARO, VPAT
Blade XL, ARO Foldable, VPAT
Blade LGP, ARO Foldable, VPAT
Blade XL, Land ll
Blade LGP, Land ll

GROUND ENGAGING TOOLS

Ripper

Ripper, Teeth Straight, Package
Ripper, Teeth Curved, Package

Winch

PA56 Winch Package, Standard Speed
PA56 Winch Package, Slow Speed
Rear Box with Striker Bar

ELECTRICAL

Beacon, Rotating

FIELD INSTALLED ATTACHMENTS –
To order from Parts Distribution

Radio, AM/FM CD Player
Retrot Kit Cloth Heated
Fairlead, Lane 3 Only – Not Installed

Fairlead, 3 Rollers
Fairlead, 4 Rollers

19

D6N Track-Type Tractor

For more complete information on Cat products, dealer services, and industry solutions,
visit us on the web at www.cat.com

© 2012 Caterpillar Inc.
All rights reserved

Materials and specications are subject to change without notice. Featured machines
in photos may include additional equipment. See your Cat dealer for available options.

CAT, CATERPILLAR, SAFETY.CAT.COM, their respective logos, “Caterpillar Yellow”
and the “Power Edge” trade dress, as well as corporate and product identity used herein,
are trademarks of Caterpillar and may not be used without permission.

AEHQ6684 (03-2012)