Overview
Engineered to excel on the most demanding work sites. The D6N combines power, rugged components and superior balance, for maximum performance in the toughest working conditions. It keeps material moving with the reliability and durability you expect from Caterpillar® machines. The D6N features advanced electro-hydraulic controls which have been designed and tuned to achieve maximum productivity and performance when equipped with AccuGrade GPS, ATS or Laser Grade Control Systems.
Specifications
| Engine Model | Cat® C6.6 ACERT™ |
| Flywheel Power | — |
| Operating Weight | — |
Benefits & Features
Specifications
| Engine Model | Cat® C6.6 ACERT™ |
| Flywheel Power | — |
| Net Power - Caterpillar | — |
| Net Power - ISO 9249 | — |
| Net Power - SAE J1349 | — |
| Net Power - EU 80/1269 | — |
| Bore | — |
| Stroke | — |
| Displacement | — |
| 1.5 Forward | — |
| 2.0 Forward | — |
| 2.5 Forward | — |
| 3.0 Forward | — |
| 3.5 Forward | — |
| 1.5 Reverse | — |
| 2.0 Reverse | — |
| 2.5 Reverse | — |
| 3.0 Reverse | — |
| 3.5 Reverse | — |
| Drawbar Pull - 1.5 Forward | — |
| Drawbar Pull - 2.5 Forward | — |
| Drawbar Pull - 3.5 Forward | — |
| Fuel Tank | — |
| Cooling System | — |
| Final Drive - Each | — |
| Hydraulic Tank | — |
| Operating Weight | — |
| Shipping Weight | — |
| Operating Weight - XL | — |
| Shipping Weight - XL | — |
| Operating Weight - LGP | — |
| Shipping Weight - LGP | — |
| Drawbar Height (Center of Clevis) from Ground Face of Shoes | — |
| Length - Track on Ground | — |
| Ground Clearance | — |
| Track Gauge | — |
| Width - Without Blade | — |
| Width - With Blade | — |
| Height | — |
| Height - ROPS/Canopy | — |
| Overall Length - Basic Tractor - With Drawbar | — |
| Width - Shoe - XL | — |
| Width - Shoe - LGP | — |
| Shoes/Side - XL | 40 |
| Shoes/Side - LGP | 46 |
| Grouser Height | — |
| Track Gauge - XL | — |
| Track Gauge - LGP | — |
| Track on Ground - XL | — |
| Track on Ground - LGP | — |
| Ground Contact Area - XL | — |
| Ground Contact Area - LGP | — |
| Ground Pressure | — |
| Ground Pressure - XL | — |
| Ground Pressure - LGP | — |
| Track Rollers/Side - XL | 7 |
| Track Rollers/Side - LGP | 8 |
| Blade Type | VPAT, SU |
| XL SU - Blade Capacity | — |
| XL SU - Blade Width | — |
| XL VPAT - Blade Capacity | — |
| XL VPAT - Blade Width | — |
| LGP VPAT - Blade Capacity | — |
| LGP VPAT - Blade Width | — |
| Type | Fixed Parallelogram |
| Number of Pockets | 3 |
| Overall Beam Width | — |
| Beam Cross Section | 216x254 mm 8.5x10.0 in |
| Maximum Penetration - XL | — |
| Maximum Penetration - LGP | — |
| Weight - Each Additional Shank | — |
| Winch Model | PA55 |
| Weight* | — |
| Oil Capacity | — |
| Winch and Bracket Length | — |
| Winch Case - Width | — |
| Drum Diameter | — |
| Drum Width | — |
| Flange Diameter | — |
| Drum Capacity - 22 mm (0.88 in) | — |
Benefits & Features
Differential Steering
Tiller Bar Control System
- A comfortable tiller bar provides precise steering, direction and transmission control, featuring:
- Easy touch shifting
- Tight turning radius and counter-rotation capability
- Smooth direction changes
Power Turn with Differential Steering
- With differential steering, large blade loads can be smoothly maneuvered while turning. The operator maintains precise control on slopes, around buildings, bridge abutments, trees or other obstacles.
- Differential steering turns the machine by speeding up one track and slowing the other while maintaining full power to both.
- Steering modulation is finely tuned for precise control.
- Regardless of ground conditions, steering is consistent because power is maintained to both tracks during operation.
Engine
Cat® C6.6 Engine with ACERT™ Technology
The Cat® C6.6 is a 6.6 liters (403 in3) displacement, six cylinder, inline configured engine equipped with a Caterpillar Common Rail fuel System. It uses ACERT Technology, a series of Caterpillar engineered innovations that provide advanced electronic control, precision fuel delivery and refined air management, resulting in outstanding performance and lower emissions. It meets the U.S. EPA Tier 3, European Union Stage IIIA and Japan MOC Step 3 emissions standards.
Electric Fuel Priming Pump
The electric fuel priming pump provides quick, effortless fuel priming.
Torque Rise
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.
Drive Train
Multi Velocity Program (MVP)
Caterpillar's Multi Velocity Program (MVP) allows operators to choose from five different speed ranges in both forward and reverse, increasing machine productivity, decreasing fuel consumption and significantly reducing operating costs.
Auto-Shift/Auto-Kickdown
Auto-shift allows the operator to select a forward and reverse speed combination for easy, efficient directional changes. The operator can select a combination of any forward and reverse speeds or use one of three factory settings. The factory auto-shift settings include: 1.5 forward/2.5 reverse, 2.5 forward/2.5 reverse, and 2.5 forward/1.5 reverse. Auto-kickdown allows the transmission to automatically downshift when significant load increases are detected, ensuring maximum dozing performance.
Elevated Final Drive
- Isolates final drives from impact loads for extended power train life.
- Protects sprocket teeth, bushings and final drives from debris, abrasive materials and moisture.
- Provides long-lasting final drive performance and durability.
Operator Station
Cab
Designed for quiet, comfortable, productive operation all shift long. Large glass panels provide excellent visibility to the blade, sides and rear of the machine, for safe, effective operation in tight operating areas. Acoustic headliner material, and sound suppression foam panels ensure quiet machine operation, and automatic temperature control provides unmatched operator comfort.
Cat Comfort Series Air Suspension Seat
Cat Comfort Series Air Suspension Seat is fully adjustable for maximum operator comfort, support and reduced operator fatigue.
Instrumentation
The instrument panel has been redesigned for improved visibility and usability. The easy to read gauges, warning lights and digital display ensure the operator is always aware of vital machine functions.
Electro-Hydraulic Controls
New electro-hydraulic controls provide quick steering response, precise blade control, and comfortable, low-effort operation. They offer superior ergonomics and are quieter and cleaner than pilot controls, eliminating hydraulic connections in the cab.
AccuGrade™ Grade Control Systems
AccuGrade Attachment Ready Option
The AccuGrade Attachment Ready Option (AccuGrade ARO) provides a factory installed on-board platform for an AccuGrade Laser, GPS or Advanced Tracking Sensor (ATS) system. All of the changes required to the electrical system, hydraulic system, blade, and cab are incorporated into the AccuGrade ARO. Mounting brackets on the blade allow easy installation of the masts. Mounting brackets in the cab secure the in-cab display. Plug-in points inside the cab and on the front of the machine make it easy to install electronic components.
AccuGrade GPS System
The AccuGrade Global Positioning System (GPS) is the best solution when the construction site involves contours, rather than single or dual slope planes. A GPS system compares the blade position to a three-dimensional computerized job site plan and signals the operator or hydraulic system to raise or lower the blade to achieve the design requirements.
AccuGrade ATS System
The AccuGrade ATS system tracks blade positioning and provides three dimensional controlling capability for precise elevation adjustment, improved accuracy and dynamic tracking.
AccuGrade Laser System
The laser system is ideal for fine grading sites with flat, single slope or dual slope surfaces such as industrial, commercial and residential building sites.
AccuGrade Monitor
The in-cab display with easy-to-read grade indicators and real time operator information provide the operator with all AcuuGrade system information. The display is designed for reliable performance in extreme operating conditions including shock, dust and moisture.
SystemOne™ Undercarriage
SystemOne™ Undercarriage
Exclusively for Caterpillar machines, the design extends system life and reduces operating costs.
Undercarriage Arrangements
- XL (Extra Long) arrangement
- Forward idler position provides more track on the ground and to the front of the tractor. It provides optimal balance, superior traction and blade control for finish grading.
- Long roller frame provides good flotation in soft underfoot conditions. LGP (Low Ground Pressure) arrangement
- Specially designed to work in soft and spongy conditions.
- Wide track shoes, a longer track frame and a wider gauge increase track contact area and reduce ground pressure for excellent flotation.
Equalizer Bar
The pinned equalizer bar gives the roller frames the ability to oscillate up or down to better match ground contours while providing maximum traction and operator comfort.
Blades and Attachments
Variable Pitch Power Angle and Tilt Blade (VPAT)
- The VPAT blade gives the operator the ability to hydraulically adjust the blade lift, angle and tilt from the operator's station.
- Manually adjustable blade pitch for optimum performance.
- Top corners of the blade are clipped for better operator viewing area. (XL arrangement only).
- C-Frame is solidly pinned to the mainframe for good blade control and eliminates blade motion due to track oscillation or side forces.
Foldable Blade
Designed to facilitate transportation without removing the blade, the foldable blades reduced overall shipping width of the machine. The blade can be folded by hand by one person without the need for tools, and each foldable blade includes the mounting brackets for AccuGrade masts.
Drawbar
The D6N can be equipped with a drawbar for pulling work tools such as disks, compactors, chopper wheels and retrieval of other equipment.
Multi-Shank Ripper
The multi-shank parallelogram ripper lets you choose one, two or three shanks depending on job conditions. Curved or straight ripper shanks are available.
Winch
- Standard and slow-speed winches are available to match the application requirements.
- Integrated electronic controls for both clutch and brake functions improve winch performance.
- Clutch engagement and brake release are automatically synchronized for smooth operation.
- Winch components can be serviced with winch mounted on tractor.
Forestry Sweeps
In forestry and land clearing applications where limbs and debris can damage a machine, optional sweeps are available for the D6N. Sweeps help to shield critical components on the tractor such as hydraulic lines, exhaust stacks, cab windows and lights from damage.
Value Packages
Ripper Ready Package
Includes factory-installed hydraulics, wiring and ripper controls in a customized ripper control console.
Winch Ready Package
Includes factory-installed wiring and winch controls in a customized winch control console.
Heavy Duty Guard Package
Includes heavy duty guards for both the fuel tank and the crankcase, and a heavy duty hinged, louvered radiator grill with latch.
Cold Weather Package
Includes a coolant heater and high-capacity (1400 CCA) heavy-duty batteries for improved cold start capability.
Maintenance Package
Includes fast fuel and high speed oil change capability.
Semi-Universal Blade Package (Cab)
Built for tough applications where penetration and blade side loading are important. The design of the SU blade makes it excellent for aggressive dirt penetration and loading materials. The blade wings are designed for superior load retention.
Contact custom products for waste handling, forestry and other specific application requirements.
Serviceability
Easy Access
Hinged engine doors provide easy access to secondary fuel filters, oil filters, engine oil filler tube, engine air filter, and the A/C compressor. Service doors provide easy access to the battery disconnect switch, hydraulic taps, transmission oil tank filler cap, windshield washer tank and batteries, emergency shut off switch, electronic control module, and the hydraulic case drain filter. Grouped pressure taps allow for quick testing and troubleshooting of the hydraulic system.
Product Link
Product Link automatically reports machine information such as location, machine hours, service meter hours, machine condition and security alarms. All this allows for much better fleet management and maintenance.
Machine Security System (MSS)
An optional Machine Security System (MSS) utilizes a programmable key that deters theft, vandalism and unauthorized usage.
Support
Your Cat dealer is ready to assist you with your purchase decision and everything after.
- Machine comparisons with estimates of total owning and operating costs including component life, preventative maintenance and production capability.
- Machine financing options.
- Machine repair and replacement options.
Data not available.
Standard Equipment
- ELECTRICAL
- Horn
- Hour meter
- Back-up alarm
- 12-volt converter, 10-amp
- Diagnostic connector
- 950 CCA class 31 batteries
- Integrated lights (4 front, 2 rear) with protective screen
- 95A HD brushless alternator (24 V)
- 24V electric starter
- OPERATOR ENVIRONMENT
- ROPS/FOPS cab with integrated A/C
- Seat, air suspension, cloth for cab
- Seat belt, retractable 76 mm (3 in)
- Adjustable armrest
- Foot rests for slope work
- Five gauge cluster (engine coolant, transmission oil, hydraulic oil, fuel level, and engine RPM display/gear display)
- 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
- Two 12V power ports
- 12V radio ready (plug and play)
- Storage compartment
- Cup holder
- Coat hook
- Rearview mirror
- POWER TRAIN
- C6.6 Caterpillar ACERT diesel engine with Caterpillar Common Rail fuel system, ADEM A4 Electronic Control Module, and a air-to-air aftercooling
- Single poly-vee belt with auto belt tensioner
- Starting aid ether injection
- 3000 meter altitude operation capability without derating
- Fan, direct drive
- Aluminum bar plate cooling system (radiator, power train, aftercooler)
- Steel tube-fin oil cooler (differential steering)
- Air cleaner with integrated pre-cleaner, automatic dust ejector and under hood air intake
- Electrical fuel priming pump with integrated fuel/water separator
- Engine decelerating function (toggle switch and pedal engine speed control)
- 3 speed planetary powershift 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, selectable automatic down shift and kick down transmission control
- Auto-shift (1.5F - 2.5R, 2.5F - 2.5R)
- Selectable differential steering
- HYDRAULICS
- Three valve-hydraulics for VPAT dozer
- Load sensing hydraulics
- UNDERCARRIAGE
- SystemOne™ Undercarriage
- Center tread idler
- Lifetime lubricated track rollers (7 XL and 8 LGP) and idlers
- Carrier rollers
- Tracks 40 section - 610 mm (24") Extreme Service (ES) for XL
- Tracks 46 section - 840 mm (33") Moderate Service (MS) for LGP
- Hydraulic track adjusters
- Front and rear track guiding guards, Moderate Service (MS) for LGP
- Replaceable sprocket rim segments
- OTHER STANDARD EQUIPMENT
- C-Frame, cylinders (VPAT) and lines
- Extended service intervals (500 hrs engine, 1,000 hrs powertrain)
- Crankcase guard
- Ecology drains (engine, power train, hydraulic oil)
- Scheduled oil sampling ports (engine, powertrain, hydraulics, and engine coolant)
- Coolant sampling port
- Centralized remote mounted pressure taps for easy access and diagnostics
- Implement oil filter
- Front pull device
- Hinged, louvered radiator grill
- Lockable engine enclosures
- Rigid drawbar
- 3000 meter altitude operation capability w/o de-rating
- ANTIFREEZE
- Extended life coolant (-37° C/-35° F)
- Cat HYDO Advanced 10
Optional Equipment
- ELECTRICAL
- Rotating beacon
- GUARDS
- Guard, front lines
- Guard, track guiding, MS
- Guard, track guiding, center, XL
- Guide/Guard, track, HD
- Screen, protective, cab
- Screen, protective, canopy
- POWERTRAIN
- Grid sandblast
- Fan, direct drive, reversing
- Precleaner, turbine with screen
- Radiator, trash resistant
- UNDERCARRIAGE
- TRACK PAIRS, XL (40 sec)
- TRACK PAIRS, LGP (46 sec)
- OPERATOR ENVIRONMENT
- Canopy, heated
- Machine security system
- HYDRAULICS
- Hydraulic Oil, Biodegradable
- BLADES
- Blade, VPAT, AccuGrade ready, XL
- Blade, VPAT, AccuGrade ready, LGP
- Blade, AccuGrade ready, Foldable, XL
- Blade, AccuGrade ready, Foldable, LGP
- Blade, VPAT XL Foldable Fine Grading AccuGrade
- REAR ATTACHMENT
- Winch preparation
- Ripper, multi-shank
- Teeth, curved shank ripper
- MACHINE CONTROL AND GUIDANCE
- Installation, AccuGrade ready Cab/Canopy
- OTHER ATTACHMENTS
- Sound suppression, exterior
- Doors, engine, SU
- Enclosure engine, SU
- Enclosure engine perforated, SU
- Enclosure engine perforated, VPAT
- PTO Relocation filter
- ANTIFREEZE
- Coolant, ext. life, -50° C (-58° F)
- SPECIAL ARRANGMENTS
- Forestry arrangement, XL/LGP
- Waste handling arrangements XL/LGP
- FIELD INSTALLED ATTACHEMENTS
- PA 55 winch slow and standard speed
- Radio, 12 V AM/FM CD and MP3
- D6N VALUE PACKAGES
- Ripper, Ready Package
- Winch Ready Package
- Maintenance Package
- Cold Weather Package - 120V
- Cold Weather Package - 240V
- Heavy Duty Guard Package
- Protection Package - Cab
- Protection Package - Canopy
- Forestry / Exploration Package
- 6VPAT XL Fine Grading Package
- 6VPAT LGP Foldable Fine Grading Package
- Dual Control Package - Cab
- Dual Control Package - Canopy
- SU Package - Cab