D9T Dozer | Bulldozer

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METRIC

D9T

OVERVIEW

BENEFITS

FEATURES AT A GLANCE

SPECIFICATIONS

PRODUCT BROCHURES AND DOWNLOADS

TOOLS AND EXPERT HELP

MEDIA GALLERY

KEY SPECS

Engine Model Cat® C18 ACERT™
Flywheel Power 306kW410hp
Bore 145mm5.7in

FIND A DEALER

OVERVIEW

BENEFITS

FEATURES AT A GLANCE

Structures

Helping you get more done with maximum availability, the D9T's durable design makes repair and maintenance easy. Customers can rebuild these tractors several times using the same frame with only minor repairs. With unparalleled support from Cat dealers it is not unusual for a Cat large dozer to log more than 100,000 hours.

The D9T mainframes are built to absorb high impact shock loads and twisting forces encountered during severe dozing and ripping applications.
The main case, equalizer bar saddle, and front cross member are heavy duty steel castings incorporated into highly loaded areas of the mainframe to improve stress distribution for improved durability.
Top and bottom rails are made from continuous rolled sections, providing superior mainframe durability.
The main case elevates the final drives well above the ground level work area to protect them from impact loads, abrasion and contaminants.
The pivot shaft and pinned equalizer bar maintain track roller frame alignment and allow the roller frame to oscillate for smoother ride.

Tag-Link blade mounting brings the blade closer to the machine for excellent maneuverability, machine balance and blade penetration. This design also eliminates the need for diagonal bracing by transferring side loads to the mainframe, instead of the dozer push arms. Proper grease lubrication on working surfaces can significantly extend component life and help lower maintenance cost.

Remote lubrication is performed from a service point conveniently located on the left hand side of the engine compartment and allows an operator or service technician to lubricate both the left-hand and right-hand equalizer bar end pin bearings and pins from one service point.

C18 Engine with ACERT Technology

Performing at full-rated net power of 306 kW (410 hp), the large displacement and high torque rise allow the D9T to rip through tough material. Matched to the high-efficiency torque converter and electronically controlled power shift transmission, it will provide years of reliable service. Manages fuel delivery for optimal performance per liter (gallon) of fuel used. Provides flexible fuel mapping, allowing the engine to respond quickly to application needs. Tracks conditions and keeps engine operating at peak efficiency. 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 a water-cooled turbocharger, unique cross-flow head and single overhead cam. Uses the temperature of the engine coolant to warm the cold fuel coming directly from the tank. The fuel heater allows an easier transition to winter blended fuels during season changes. The attachment provides an updated turbo and control software that allows full tractor performance up to 4420 m (14,500 ft) altitude.

Cooling System

Cooling system uses a radiator built with rugged, highly efficient aluminum bar plate cores. The aluminum bar plate construction aids durability and allows for higher heat transfer and superior corrosion resistance. Helping to save on repair and maintenance costs, the oil to air hydraulic cooler helps extend component life by reducing hydraulic oil temperatures. Customers experience increased production and fuel economy as well as reductions in fan noise and engine over cooling with the hydraulically variable demand fan. The demand fan changes speed to match ambient conditions. In cooler environments, the fan turns at a slower speed; consuming only the power required to cool the tractor system, providing more power to the tracks to help you lower your cost per unit of material moved.

Reversing cooling fan for heavy debris applications with ultra low speed for cold weather.

Power Train

The D9T power train design optimizes performance and the ease of operation helps customers get more done for the lowest cost per unit. A high efficiency torque converter with fixed stator provides high torque multiplication while shielding the drive train from sudden torque shocks and vibration. A standard feature for the D9T is EAS. EAS improves fuel efficiency and productivity by automatically selecting the optimal gear and engine speed combination based upon power train load and desired ground speed. This feature functions similar to an automatic transmission. This convenience feature helps reduce operator work load during operation. Bi-directional shift allows the operator, by just making a directional change, to automatically select the desired forward and reverse gears or the desired forward and reverse speeds when EAS is activated. This feature adds value by enhancing safety and productivity during the dozing cycle. When not in EAS mode, auto downshift can be used to automatically downshift the transmission when significant load increases are detected, but this feature will not automatically up-shift when load is reduced. Auto downshift provides optimal performance with minimal operator effort. The operator may override these automatic shift features at any time. Major power train components are modular in design, so being able to quickly remove and reinstall a new pre-tested component gives you the ability to keep the dozer up and running and producing.

Three speeds forward and three speeds reverse, utilizing large diameter, high capacity, oil-cooled clutches.
Oil-to-water cooler for maximum cooling capacity.
Forced oil flow lubricates and cools clutch packs to provide maximum clutch life.
Modular transmission and bevel gear slide into rear case for easy servicing, even with ripper installed.

With differential steering, large blade loads can be smoothly maneuvered throughout a turn.

Differential steering has the ability to work in tight areas by providing a tight turning radius.
Differential steering maintains a high ground speed while turning keeping productivity high.

Undercarriage

The elevated sprocket and fully suspended undercarriage work together, increasing traction while creating a smoother ride for your operators. The elevated sprocket design transfers implement shock loads to the mainframe, so final drives, axles and steering components are isolated from harsh impacts. These benefits translate into higher production and longer component life.

Bogie Suspension allows the track to conform to ground condition, providing up to 15% more ground contact, especially in hard, uneven terrain. Higher traction means less slippage, better balance, and a smoother ride.
Roller frames are tubular to resist bending and twisting, with added reinforcement where operating loads are highest.
The undercarriage idler guard provides additional wear protection from abrasive material to the moving undercarriage. Includes rubber idler protectors.
Positive Pin Retention (PPR) sealed and lubricated track is designed for high-impact and high load applications. The Caterpillar design locks the link to the pin reducing the opportunity for premature loss of lubrication. Sealed design permanently coats the track pin with lubricant, minimizing metal-to-metal contact and virtually eliminating internal pin and bushing wear.

Work Tools

All blades feature a strong box-section design that resists twisting and cracking. Blades are made of high tensile strength steel that stands up to the most demanding applications.

High-Capacity Universal Blade – Maximizes capacity for moving big loads over long distances.
Semi-Universal Blade – Built for tough applications where penetration is important.
Optional Dual Tilt – Allows the operator to optimize the blade pitch angle.
Cutting Edges and End Bits – Cutting edges are made of DH-2 steel. End bits are made of DH-3™ steel for maximum service life. For extremely severe applications, moldboard wear plates, extended wear life end bits and cutting edges are available.
Cat Work Tools offer a range of special application blades, including coal stockpile blade, landfill blade, cushion dozer blade, reclamation blades and wood chip blade.

Single-Shank Ripper – Built for the tough ripping conditions and greater ripping depth. Operator can adjust the shank depth from the seat using an optional single-shank pin puller. Large one piece shank, available in deep rip configuration.
Multi-Shank Ripper – Generally for lighter duty ripping applications in less severe materials. Provides high levels of productivity. Tailors the tractor to the material by using one, two or three shanks.

The tip and shank protector are easily installed with a 180 degree turn of a ¾ inch ratchet. This simple installation means no hammering and therefore improved safety. It also means quicker change outs and less downtime. Provide proper tractor balance to maximize dozing production. Recommended if dozer is not equipped with any other rear attachment.

Operator Station

The D9T cab is designed and equipped for operator productivity, safety and comfort. The standard isolation-mounted cab reduces noise and vibration. Overall operator sound levels have been reduced by 2 dB(A). Large windows, tapered hood, and notched fuel tank provide excellent visibility to all sides of the machine and around the job site. The Advisor Monitoring System tracks machine operating conditions in real time. Operators will enjoy comfort features like standard Cat Optimized Seat, adjustable arm rests and automatic climate control. The climate control system automatically adjusts heater and air conditioning controls to maintain a consistent cab temperature throughout the day. Both heater and air conditioner deliver filtered, pressurized, temperature controlled air to the operator and/or windows. The system performs five functions: heating, cooling, defrosting, pressurizing and defogging. Additional cab features include:

Entertainment radio ready and IPOD/MP3 player ready
Communications radio mounting
Finishes that make the cab easy to clean
Heated and ventilated seat option
Deep storage space
Two cup holders
Window wipers (intermittent, low and high speeds)

Implement and Steering Controls

A single ergonomic handle with a thumb roller controls direction, turning, forward/reverse shifting and gear selection. Tiller style control helps you work more precisely in tight spaces.
One touch of the throttle rocker switch automatically adjusts engine speed to high or low idle. The operator can press and hold until desired engine speed is reached, then release for the machine to maintain the new chosen speed.
A low-effort electronic dozer control handle gives the operator complete control of all dozer functions with one hand.
The ripper control handle is located to the operator's right, directly behind the dozer joystick. A rigidly mounted hand grip provides firm support for the operator even when ripping in the roughest terrain.

Integrated Technologies

No matter the job; whether you work in heavy construction, medium commercial sites, mine sites, or landfills Caterpillar integrates technology and services to improve your job site efficiency. Using the data from technology-equipped machines, you'll get more information and insight into your equipment and operations than ever before.

Auto Blade Assist (ABA) (optional) – Increases efficiency while reducing operator workload. ABA makes use of preset blade pitch positions for the load, carry, and spread portions of the cycle. ABA is standard on the D9T when it is equipped with optional dual tilt. Works with AutoCarry™.
AutoCarry (optional) – Automates blade lift to maintain desired blade load, improve load consistency, reduce track slip, and reduces operator fatigue. Works seamlessly with Cat Grade Control.
Cat Grade Control 3D (optional) – The system uses dual ROPS mounted Global Navigation Satellite System (GNSS) antennas and in-cylinder sensors to provide precise positioning of the cutting edge. Three operating modes – Rough Grade, Grade Protection, and Grade Control – enable consistent grades.
Cat AccuGrade™ (optional) – AccuGrade is a dealer-installed aftermarket grade control system that provides higher accuracy capabilities by adding laser and GPS technology when required.
Terrain for Grading (optional) – Enables an electronic site plan to be sent to the machine from the office in real-time, directing the operator where to cut and fill. Provides high precision management of dozing and grading applications for enhanced safety, productivity and efficiency.
Automatic Ripper Control (optional) – Automatically controls ripper height to limit track slip in hard ripping applications. Lessens fatigue so operator can focus on the job. Reduces machine and component wear, and operating costs.

Safety

On the D9T, anchorage points provide your people with a positioning system to perform repairs and maintenance. The D9T consist of eight (8) total anchorage points.

Two (2) on lift cylinder spray shields
Two (2) on front top of cab
Four (4) on ROPS structure

This feature locks out the power train and hydraulics to prevent unintentional movement when the operator is not in the seat. Strategically placed grab handles plus non-slip steps and decking aid operator getting on and off the machine. Standard heavy duty guard rails are strategically placed to aid the operator outside the cab. The D9T offers several lighting package options to enhance the operators' view of their surroundings during night operation.

Halogen
High Intensity Discharge (HID)
Cat Light Emitting Diode (LED) Work Lights

The D9T offers multiple visibility package options that enhance the operator's visibility of his or her surroundings and provides a broader view of the work area.

Mirror in cab
Mirrors on bulldozer lift cylinders
Single rear facing camera with 7" display

Serviceability

You will benefit from high uptime and lower upkeep costs with the reliable D9T. The modular design supports efficient servicing and quick turnaround on repairs. Through the ability to swap out a component with a pretested rebuilt or remanufactured unit, the D9T returns to the job faster. Minimizes maintenance and repair downtime. Sight gauges, filter locations, improved access to oil and coolant sampling ports, and an engine compartment mounted work lamp, make daily and periodic service faster and easier. Is mounted on the left hand fender to provide easy access to:

Access/ Egress lighting switch
Electrical disconnect switch with built in lockout/tag-out capability
Engine shutdown switch
Hour meter

The Ok-to-Start strategy provides electronic fluid level verification at startup on the engine coolant, engine oil and power train oil systems. All information is available via the Advisor Display within the cab. The fast fuel system at ground level, with positive fuel shut-off to prevent fuel spillage, can reduce fuel waste and decrease downtime. This system gathers historical trends, histograms, events and more through a wired connection for off-board analysis in applications such as VIMS PC. Additional subscription is required. Product Link enables the remote transmission of information about the location, operation, and condition of your equipment. Efficiently and effectively monitor performance of your assets to help keep your jobs on schedule, maintain equipment condition, and reduce the costs of owning and operating your fleet.

Sustainability

The D9T offers a number of sustainable benefits:

The D9T is Grade Control Ready for easy installation of machine control and guidance systems like AccuGrade and Cat Grade Control 3D. These systems improve operator productivity, as well as save fuel and wear and tear on the machine. The need for grade checking crews on the ground is eliminated which increases site safety.
Ground level service centers enhance safety for operators and service personnel.
Major components of Cat dozers are built to be rebuilt. The Cat Certified Rebuild program conserves natural resources by delivering a cost effective second and even third, life for our machines.

Customer Support

From helping you choose the right machine to knowledgeable ongoing support, Cat dealers provide you with unmatched sales and service.

Preventive maintenance programs and guaranteed maintenance contracts.
Best-in-class parts availability.
Operator training to help boost your profits.
Genuine Cat Remanufactured parts.

SPECIFICATIONS

Engine Model Cat® C18 ACERT™
Flywheel Power 306kW410hp
Bore 145mm5.7in
Stroke 183mm7.2in
Displacement 18.1l1106in³
Engine Power - ISO 14396 329kW441hp
Engine Power - Net SAE J1349/ISO 9249 306kW410hp
Net SAE J1349/ISO 9249 306kW410hp
Emissions U.S. EPA Tier 2/EU Stage II Equivalent and U.S. EPA Tier 3/EU Stage IIIA Equivalent
Engine Power - Gross SAE J1995* 334kW448hp
Note (1) * Excludes all fan losses.
Operating Weight 47872kg105539lb
Shipping Weight 35746kg78806lb
1 Forward 3.9km/h2.4mile/h
2 Forward 6.8km/h4.2mile/h
3 Forward 11.7km/h7.3mile/h
1 Reverse 4.7km/h2.9mile/h
2 Reverse 8.4km/h5.2mile/h
3 Reverse 14.3km/h8.9mile/h
1 Forward - Drawbar Pull 716500N161000lbf
3 Forward - Drawbar Pull 222500N50000lbf
2 Forward - Drawbar Pull 400500N90000lbf
Pump Type Piston-type pump geared from flywheel
Pump Output - Steering 387l/min102gal/min
Pump Output - Implement 226l/min60gal/min
Tilt Cylinder Flow - Rod End Flow 140l/min37gal/min
Tilt Cylinder Flow - Head End Flow 188l/min50gal/min
Bulldozer Relief Valve Setting 26200kPa3800psi
Tilt Cylinder Relief Valve Setting 19300kPa2800psi
Ripper - Lift - Relief Valve Setting 26200kPa3800psi
Ripper - Pitch - Relief Valve Setting 26200kPa3800psi
Steering 40500kPa5875psi
Tank Capacity 89l23.5gal (US)
Shoe Type Extreme Service
Width - Shoe 610mm24in
Shoes/Side 43
Grouser Height 84mm3.3in
Pitch 240mm9.44in
Ground Clearance 596mm23.5in
Track Gauge 2250mm88.6in
Length - Track on Ground 3470mm136.6in
Ground Contact Area 4.24m²6569in²
Track Rollers/Side 8
Number of Carrier Rollers 1 per side (optional)
Fuel Tank 889l235gal (US)
Cooling System 101l26.7gal (US)
Engine Crankcase* 34l9gal (US)
Power Train 164l43.3gal (US)
Final Drive - Each 15l3.9gal (US)
Roller Frames - Each 45l11.9gal (US)
Pivot Shaft Compartment 30l7.9gal (US)
Hydraulic Tank Oil - Only 89l23.5gal (US)
Maximum Tilt 940mm37in
Total Operating Weight** - With Blade and Single-Shank Ripper 47872kg105539lb
Ground Clearance 1422mm56in
Digging Depth 606mm23.9in
Width - Over End Bits 4650mm15.25ft
Height 1934mm6.35ft
Capacity - SAE J1265 13.5m³17.7yd³
Weight* - Without Hydraulic Controls 6863kg15130lb
Maximum Tilt 1014mm39.9in
Digging Depth 606mm23.9in
Capacity - SAE J1265 16.4m³21.4yd³
Total Operating Weight** - With Blade and Single-Shank Ripper 48460kg106836lb
Width - Over End Bits 4310mm14.14ft
Weight* - Without Hydraulic Controls 7388kg16288lb
Height 1934mm6.35ft
Ground Clearance 1422mm56in
Note (1) * Total Operating Weight: Includes hydraulic controls, blade tilt cylinder, coolant, lubricants, full fuel tank, ROPS, FOPS cab, SU-Blade, Ripper, 610 mm (24 in) ES shoes, and operator.
Total Operating Weight* - With SU-Blade and Ripper 47872kg105539lb
Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole 882 mm/817 mm (34.7 in/32.2 in)
Note (1) * Total Operating Weight: Includes hydraulic controls, blade tilt cylinder, coolant, lubricants, full fuel tank, ROPS, FOPS cab, SU-Blade, Ripper, 610 mm (24 in) ES shoes, and operator.
Maximum Clearance Raised - Under Tip, Pinned in Bottom Hole 879mm34.6in
Total Operating Weight* - With SU-Blade and Ripper 48221kg106309lb
Overall Beam Width NA
Note (2) + Includes (1) shank, add 347 kg for each additional shank.
Pry-Out Force 332 kN/331 kN (74,637 lbf/74,412 lbf)
Maximum Penetration - Standard Tip 798mm31.4in
Maximum Penetration Force - Shank Vertical 154kN34621lb
Note (2) Single-shank ripping arrangement weight includes pin puller.
Number of Shank Holes 2
Number of Shank Holes 3
Weight - With One Shank 4153kg9156lb
Weight - With One Shank 4293 kg/4420 kg (9,464 lb/9,744 lb)
Overall Beam Width 1330mm4.36ft
Pry-Out Force - Multi-Shank Ripper with One Tooth 361kN81156lb
Maximum Penetration - Standard Tip 1231 mm/1727 mm (48.5 in/68 in)
Maximum Penetration Force - Shank Vertical 158 kN/172 kN (35,520 lbf/38,667 lbf)
Winch Model PA140VS
Weight* 1790kg3950lb
Oil Capacity 15l4gal (US)
Increased Tractor Length 557mm21.9in
Drum Width 320mm12.6in
Wire Cable Diameter - Recommended 28mm1.13in
Wire Cable Diameter - Optional 32mm1.25in
ROPS ROPS (Rollover Protective Structure) offered by Caterpillar for the machine meets ROPS criteria SAE J1040 MAY94, ISO 3471:1994.
FOPS FOPS (Falling Object Protective Structure) meets ISO 3449:2005 Level II.
Length - Basic Tractor - With Winch 5545mm218.3in
Overall Length - Basic Tractor 4910mm193.3in
Note * With oil filters.
Maximum Drum Capacity - Optional Cable Length 62m204ft
Width - Over Trunnions 3300mm129.9in
Note (2) ** Total Operating Weight: Includes hydraulic controls, blade tilt cylinder, coolant, lubricants, full fuel tank, ROPS, FOPS cab, Blade, Single-Shank Ripper, 610 mm (24 in) ES shoes, and operator.
Track Gauge 2250mm88.6in
Wire Cable Ferrule Size - Length 70mm2.8in
Length - With SU-Blade** 6880mm270.9in
Wire Cable Ferrule Size - Outside Diameter 60mm2.4in
Note (3) Net power advertised is the power available at the flywheel when the engine is equipped with fan at max speed, air cleaner, muffler and alternator.
Note (2) Implement Pump output measured at 1,800 rpm and 20 000 kPa (2,900 psi).
Note (2) **Includes drawbar.
Sound (2) The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88 APR95, mid-gear-moving operation, is 87 dB(A).
Length - With U-Blade 6967mm274.3in
Note (2) * Weight shown is base winch only. Does not include mounting arrangement, control arrangement, oil, or wire rope. With counterweight: 3700 kg (8,150 lb).
Height - FOPS Cab* 3820mm150.4in
Length - Track on Ground 3470mm136.6in
Maximum Drum Capacity - Recommended Cable Length 78m257ft
Height - Top of Stack* 3919mm154.3in
Height - ROPS/Canopy* 4000mm157.5in
Ground Clearance* 596mm23.4in
Drawbar Height (Center of Clevis)* 763mm30in
Note (1) Operating Weight: Includes hydraulic controls, blade tilt cylinder, coolant, lubricants, full fuel tank, ROPS, FOPS cab, SU-Blade, Single-Shank Ripper, 610 mm (24 in) ES shoes, and operator.
Note (2) ** Total Operating Weight: Includes hydraulic controls, blade tilt cylinder, coolant, lubricants, full fuel tank, ROPS, FOPS cab, Blade, Single-Shank Ripper, 610 mm (24 in) ES shoes, and operator.
Overall Length - SU-Blade/SS Ripper 8230mm324in
Note (1) Variable speed, hydraulically driven, dual braking system, three-roller fairlead.
Note (3) Electro-hydraulic pilot valve assists operations of ripper and dozer controls. Standard hydraulic systems includes four valves.
Length - With Multi-Shank Ripper 6538mm257.4in
Note (1) *Includes grouser height for total dimensions on hard surfaces.
Length - Basic Tractor - With Drawbar 5180mm204in
Note (1) Steering Pump output measured at 1,800 rpm and 30 000 kPa (4,351 psi).
Note (2) Shipping Weight: Base machine chassis with cab, pivot shaft, roller frames, track and ROPS.
Note Positive Pin Retention Track.
Width - Without Trunnions - Standard Shoe 2880mm113.4in
Note (2) Engine ratings apply at 1,833 rpm.
Note (1) * Includes blade installation arrangement, blade tilt cylinder, and blade lift cylinders.
Note (4) No derating required up to 2286 m (7,500 ft) altitude. High altitude attachment available for greater than 2286 m (7,500 ft).
Note (4) Complete system consists of pump, tank with filter, oil cooler, valves, lines, linkage and control levers.
Length - With Single-Shank Ripper 6529mm257in
Note (1) * Includes blade installation arrangement, blade tilt cylinder, and blade lift cylinders.
Sound (1) Operator sound exposure Leq (equivalent sound pressure level) measured according to the work cycle procedures specified in ANSI/SAE J1166 OCT98 is 77 dB(A), for cab offered by Caterpillar, when properly installed and maintained and tested with the doors and windows closed.