®®

EngineEngine Model Cat ® C6.6 ACERT™Flywheel Power 93.2 kW 125 hp

WeightsOperating Weight – XL 12 886 kg 28,409 lbOperating Weight – LGP 13 467 kg 29,690 lb

D6KTrack-Type Tractor

2

D6K Track-Type Tractor

Work Tools

Caterpillar offers a variety of worktools, designed with the strength andversatility needed to accomplish thejob quickly and effectively. pg. 13

Serviceability and Accessibility

Grouped service points allow forefficient checks and maintenance,from the ground level. The new designof the cooling package facilitatesserviceability and cleaning of theradiator and cooling fan. pg. 12

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Drive Train

The hydrostatic drive with electroniccontrol provides precise modulation forquick and smooth operation, superiormaneuverability and comfortableoperation, increasing productivity. pg. 6

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Structure

Steel castings and heavy steel plates arewelded to insure a rigid one-piece framestructure. Structures are designed to lastthroughout the extended service life ofthe D6K. pg. 5

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Engine

The Cat® C6.6 engine meets stringentTier 3/Stage IIIA emission standardswhile providing outstanding engineperformance, fuel efficiency andlong-term durability. pg. 4

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✔ New Feature

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Total Customer Support

Your Cat® Dealer offers a wide rangeof services that can be set up under aCustomer Support Agreement when youpurchase your equipment. The dealerwill help you choose a plan that cancover everything from machine andattachment selection to replacement-helping get the best return oninvestment. pg. 14

AccuGrade® Laser and GPS MachineControl and Guidance Systems

AccuGrade Laser and GPS systems canbe easily installed on the AccuGradeARO (Attachment Ready Option)equipped machine. pg. 11

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SystemOne™ Undercarriage

Designed exclusively by Caterpillar forCat Machines, SystemOne Undercarriageextends undercarriage system life,improves reliability and reducesOwning and Operating costs. pg. 10

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Operator Station

A new operator station offers excellentvisibility and superior comfort.Standard features include a fullyadjustable air suspended seat, airconditioning, electro-hydraulic controls,advanced monitoring system and lowsound levels for comfortable operationand maximum productivity. pg. 8

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Cat® C6.6 Engine with ACERT™Technology. The Cat® C6.6 is a6.6 liters (403 in3) displacement,six cylinder, inline configured engineequipped with a Caterpillar CommonRail fuel System. It uses ACERTTechnology, a series of Caterpillarengineered innovations that provideadvanced electronic control, precisionfuel delivery and refined air management,resulting in outstanding performanceand lower emissions. The Cat C6.6 withACERT Technology meets the U.S. EPATier 3, European Union Stage IIIA andJapan MOC Step 3 emissions standards.

Design. The C6.6 features a compactdesign with heavy-duty engine featuresfor outstanding durability, reliabilityand performance. The C6.6 incorporatesa new cross flow cylinder head design,a 4 valve head and an ADEM A4electronic controller.

Electronic Controls. The C6.6 enginesuse advanced electronic controllers,which have a proven track record forperformance and reliability. ADEM A4Electronic Control Module (ECM)receives data from engine-mountedsensors and adjusts critical parametersto maintain optimum performance.These adjustments also optimize fueleconomy and emissions compliance.Electronics also make engines easierto troubleshoot and repair.

Fuel Delivery. Fuel is introduced inthe combustion chamber in a numberof precisely controlled microbursts.Injecting fuel in this way allows forprecise shaping of the combustionprocess. The ADEM™ A4 moduledirects the injectors to deliver precisequantities of fuel at exactly the righttimes during combustion for optimumefficiency and performance.

Air Management. The C6.6 uses aturbocharger fitted with a smart wastegate to give precise control of the boostpressure. Over the entire engine operatingranges the result is improved: Throttleresponse, Lower fuel Consumption andoptimized engine performance. A newcross-flow design in the cylinder headfacilitates air movement, while tightertolerances between the piston andcylinder liner are reducing blow by gases.

Turbocharged and Aftercooled. A well-matched turbocharger and air-to-airaftercooler results in higher power whilekeeping rpm steady and exhausttemperatures low.

Torque Rise. The direct injectionelectronic fuel system provides acontrolled fuel delivery increase asthe engine lugs back from rated speed.This results in increased horsepowerbelow rated power. A combinationof increased torque rise and maximumhorsepower improves response,provides greater drawbar pull andfaster dozing cycles.

Cooling System. The cooling system isa single coolant unit including hydraulicoil cooler, radiator, ATAAC and faninstallation. Aluminum cores andhydraulically driven demand fan provideoptimum cooling and fuel efficiency.

Electric Fuel Priming Pump. A standardelectric fuel priming pump is located inthe primary fuel filter base above thecombined water separator/primary fuelfilter. A switch enables to easily primethe fuel system after a fuel filter service.

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EngineThe new Caterpillar ® C6.6 Diesel Engine with ACERT™ Technology meets worldwideemissions requirements for EPA Tier 3, EU Stage IIIA and Japan Moc Step 3 engine exhaustemission regulations, while providing excellent performance.

Main Frame. The D6K one-piece mainframe is designed to absorb highimpact shock loads and twisting forces.Robotic welding provides deeppenetration and consistency, ensuringhigh quality, durability and reliabilitythroughout the structure.

Track Roller Frame. Track roller framesfeature an engineered box-sectiondesign, which provides superiorstrength and resistance to bending.

Equalizer bars are pinned in theircenter to the machine main frame andat the ends to each track roller frame.This allows the forward ends of the trackroller frames to oscillate to keep moretrack on the ground in uneven underfootconditions while providing maximumtraction and operator comfort.

Heavy Duty Components. Heavy dutyradiator grill, bottom guards and fueltank guard are available, for additionalprotection in severe applications.

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StructureThe frame is engineered to handle the most demanding applications, and is built to lastthroughout the extended service life of the D6K.

Hydrostatic Drive. The electronicallycontrolled hydrostatic drive systemautomatically maintains engine speedto match the power requirements ofthe application for peak performance.The hydrostatic drive train also offersindependent power and control of eachtrack, for fast acceleration, infinitelyvariable speed control and on-the-go,direction changes. The operator cancommand smooth “power turns” oreven counter-rotation of the tracks forprecise steering control in tight areas.The Caterpillar hydrostatic drive systemmanages itself, freeing the operator toconcentrate on using the Caterpillartrack-type tractor’s superb agility, speed,and maneuverability to do moreproductive work.

Infinitely Variable Speed Control.Hydrostatic drive provides infinitespeed selection from 0 to 10 km/h(0 to 6.2 mph) in forward and reverse.This lets the operator select the optimumspeed for ground and job conditions.It also eliminates power interruptionduring shifting.

Ground Speed Balancing. Hydrostaticdrive provides a completely “step-less”transmission of power and automaticallymatches travel speed and implementloads for increased efficiency and easieroperation.

High Power Utilization. The hydrostaticdrive system on the D6K is designedto use full available engine powerthroughout the machine working cycle.If the implement hydraulic system is notin use, this engine power can bedelivered to the drive train, providinghigh drawbar pull and fast travel speeds.If the implement hydraulics are beingworked hard, the machine control ECMwill automatically slow the tracks asnecessary to use the full remainingengine power, without overloadingand stalling the engine. As soon as theimplement hydraulic load is decreased,the machine control ECM willautomatically speed up the tracks untilthe machine is traveling at the speedthe operator has commanded with theHystat Control (left).

Unsurpassed Maneuverability.Power turn and counter-rotation capabilityimprove machine maneuverability andproductivity. On the D6K, power turnsare accomplished by slowing the speedof one track versus the other, whilemaintaining power to both tracks.

The Cat Hystat power turn feature alsoenables the D6K to handle large loadsaround corners or through hard spotsencountered when dozing. Power turncapability improves machine mobilityin soft underfoot conditions and isvery effective for controlling machineoperation on side slopes. Counter-rotationalso provides easy, quick maneuveringin tight areas or congested job sites.

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The D6K features an electronically controlled hydrostatic drive system with independentpower and control of each track for fast acceleration, variable speed control, and on-the-godirection changes.

Drive Train

1. Machine Speed and DirectionControl. Electro-hydraulic, seat-mountedjoystick provides simultaneous one-handed steering and transmission control.

2. Engine. Caterpillar C6.6 diesel enginewith ACERT Technology meets currentexhaust emission regulations whileproviding excellent performance.

3. Cooling System. Cooling packagefeatures a hydraulically driven fanproviding optimum cooling and fuelefficiency.

4. Hydrostatic Drive System.Independent, electronically controlleddrive circuits provide superiormaneuverability and precise, smoothpower to each track.

5. Variable Displacement Drive Pumpsand Motors. Electronically controlledand performance tuned to provideprecise speed control and maximumdrawbar pull for maximum productivity.

6. Final Drives. Large, robust planetarydrives for extended service life.

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Operator Station. The operator stationfeatures an ergonomic layout emphasizingsimplicity, ease of use and comfort.Standard air conditioning, generous legroom and superior visibility allow theoperator to focus on the job. With moreglass area, the operator station providesa clear view to the blade and thesurrounding work site.

Air suspended seat. The CaterpillarC500 Comfort air suspended seat isavailable in cloth or vinyl and is fullyadjustable, for maximum operatorcomfort. A standard lumbar adjustmentprovides excellent lower back support.For comfortable operation in coldweather, a heated cloth seat is available.

Seat-mounted controls. For optimumcomfort and precise control, the D6Kfeatures ergonomically designedseat-mounted controls. Seat-mountedcontrols isolate vibrations from theoperator, and provide independent seatand controls adjustment. Individualwrist pads and armrests can be adjustedindependently for optimum comfort.

Electro-hydraulic controls. New electro-hydraulic controls provide quicksteering response, precise blade control,and comfortable, low-effort operation.

Instrument Cluster. The compactinstrument cluster (shown with optionalAccuGrade GPS display) keeps theoperator aware of all vital machinefunctions. The advanced monitoringsystem tracks machine operatingconditions and informs the operatorof impending problems. The monitoringsystem includes:

• Alert indicators: action lamp(3 warning categories), electricalsystem

• Indicators: parking brake, engine oilpressure, engine air filter, hydraulicoil filter, electrical preheat, operatorpresence, blade float, machinesecurity system, fuel system service,implement lockout

• Gauges: hydraulic oil temperature,engine coolant temperature, fuel level

• Digital display: service hours,selected forward and reverse speeds

Messenger. Messenger is an electronicmonitoring system with real-time,visual feedback on engine and machineoperating conditions. It providesinformation on machine performance,fuel consumption, diagnostics, andallows the operator to set someparameters, such as implement andsteering modulation.

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The operator station is ergonomically designed to provide excellent visibility and superiorcomfort for maximum productivity throughout the day.

Operator Station

Brake and Decel pedal. The D6K featuresa single, combined hystat brake anddecel pedal. Two braking configurationsare available through this pedal:

• Transmission braking only: As thepedal is pressed, the machine willslow by braking the transmission;no engine decel will occur.

• Transmission braking and enginedecel: As the pedal is pressed, themachine will slow by simultaneouslybraking the transmission and reducingthe engine speed.

When the pedal is depressed beyond thedetent, the service brakes will be applied.

Bulldozer Control. The blade iscontrolled with an ergonomicallydesigned joystick located to the right ofthe operator. This joystick includes athumb wheel that controls blade angle.AccuGrade buttons are convenientlylocated on the joystick for quick,efficient actuation. For non-AccuGradeequipped machines, a blade shakebutton provides aggressive blademovement for effective removal ofsticky material.

Speed and Direction Control.The operator controls the speed of themachine and the direction of travel witha single joystick control located on theleft console. This joystick includes athumb wheel for precise speed control,as well as a convenient button to storeand recall operator-defined, independentoperating speeds for forward and reverse.

Work Tool Controls. The D6K can beequipped with either a ripper or awinch. For maximum flexibility, theD6K can be configured for rippercontrol, winch control, or a selectableripper or winch control.

Other cab features. For optimumoperator comfort, the D6K operatorstation includes the followingamenities:

• Foot rests for slope work

• Air filter

• Two 12-volt power points

• Storage compartment

• Cup holder

• Dome light

• Rearview mirror

• Coat hook

• Radio ready factory installedcomponents

• Rear attachment mirror

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SystemOne™ Undercarriage.Exclusively for Caterpillar machines thedesign extends system life and reducesoperating costs.

• Long-life Sprocket. Extended lifesprockets will outlast two or moretracks. The rotating bushingtechnology extends life.

• Guiding System. The guidingsystem contacts link rails insteadof pin ends and helps keep the trackwithin the roller system. The resultis improved track guiding.

• Rollers. The increased flangediameter on the rollers provideoptimum guiding and longer life.

• Carrier Rollers. Redesigned carrierrollers are factory sealed and servicedas a unit. The larger diameter providesextended wear to better matchundercarriage system life.

• Idlers. The center tread idlerscontact only the bushing – not thelinks – eliminating scalloping andproviding more guiding to the linkassembly. The idlers last longerbecause they contact a rotatingbushing instead of a link rail.

• Cartridge Joints. Factory-sealedcartridge joints are laser welded tocontrol end play. They offer improvedseal integrity through an innovativenew sealing system and do notdepend on the link interface toremain sealed. As with all Catundercarriage products, they arefilled with special oils.

• May be used in any application.

• The track roller frames are weldedand have a box section design,which provides strength andresistance to bending withoutadding extra weight.

• The track adjuster and mechanicalrecoil spring and grease filledadjustment cylinder which allowsthe idler to move forward and backto maintain proper track tension asit absorbs undercarriage shock.

Undercarriage Arrangements.XL (Extra Long) arrangement

• Forward idler position providesmore track on the ground and tothe front of the tractor. It providesoptimal balance, superior tractionand blade control for finish grading.

• Long roller frame provides goodflotation in soft underfoot conditions.

LGP (Low Ground Pressure)arrangement

• Specially designed to work in softunderfoot conditions.

• Wide track shoes, a longer trackframe and a wider gauge increasetrack contact area and reduce groundpressure for excellent flotation.

Complete Guarding. Caterpillarundercarriages are designed with fulllength guarding on top of the trackroller frame. This prevents abrasivematerials from being recirculated inthe track.

Roller Frames. Roller frames attach tothe tractor by a pivot shaft and pinnedequalizer bar.

Oscillating Undercarriage. The pinnedequalizer bar is saddle-mountedbeneath the mainframe, allowing theroller frames and track to oscillate.The oscillation provides a steadyworking platform and smooth ridefor the operator.

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SystemOne™ UndercarriageExclusively for Caterpillar machines the SystemOne™ Undercarriage is a revolutionary newundercarriage system – from the ground up.

AccuGrade System for Track-TypeTractors. Caterpillar is helping customersrevolutionize the way they movematerial with new technology solutionsfor earthmoving machines – solutionsthat provide greater accuracy, higherproductivity, lower operating costs andmore profitability.

The AccuGrade System is designed andintegrated into the machine and hydraulicsystems to create an automated bladecontrol system that allows operators tograde with increased accuracy.

The system uses machine-mountedsensors to calculate precise blade slopeand elevation information.

The integrated electrohydraulic valvecontrol module uses the informationreceived from the sensors to automaticallyadjust the blade to maintain grade.

Automated blade control allowsoperators to improve efficiency andproductivity by achieving grade fasterand in fewer passes than ever before,reducing the need for traditional surveystakes or grade checkers.

AccuGrade Ready Option. The factoryready option machine makes systeminstallation and setup quick and easy,and optimizes performance and reliability.

• Hydraulic control systems areintegrated into the machinehydraulics for maximumperformance and dependability.

• AccuGrade controls are integratedinto the machine controls and leversfor reliable operation and precisecontrol.

• Wiring harnesses and cables arerouted during assembly for improvedwear protection and better reliability.

• System is designed to withstandvibration for long life in ruggedworking environments.

• Safety interlock feature is built in foradded protection during automatedoperation.

AccuGrade Laser. AccuGrade Laserdesigned for precise grade control usinga laser transmitter and receiver.

A laser transmitter is set up on thework site and creates a constant gradereference over the work area. A digitallaser receiver is mounted on the machineand captures the laser signal as themachine moves across the work site.

The system captures information andcalculates the blade adjustmentsnecessary to achieve grade. The systemmakes automatic elevation adjustmentstypically performed by the operatorand provides automatic blade control.The operator simply steers the machine.The system also calculates cut/fillrequirements for manual blade control.

AccuGrade GPS. AccuGrade GPScomputes the positioning informationon the machine, compares the positionof the blade relative to the design planand delivers that information to theoperator via an in-cab display.

Information, such as blade elevation,necessary cut/fill to achieve grade,visual indication of the blade’s positionon the design surface and a graphicalview of the design plan with machinelocation.

AccuGrade GPS puts all the informationthe operator needs to complete the jobin the cab, resulting in a greater level ofcontrol. Vertical and horizontal guidancetools visually guide the operator to thedesired grade.

Automated features allow the hydraulicsystem to automatically control bladeadjustments to move the blade to grade.The operator simply uses the light barsto guide the machine for consistent,accurate grades and slopes, resultingin higher productivity with less fatigue.

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AccuGrade® Laser and GPS Machine Control and Guidance Systems Advanced Laser and GPS technology improves operator accuracy, increases productionand lowers operating costs.

Easy diagnostics. The CompactInstrument Cluster allows for quickidentification of problems and its cause,utilizing a three level warning system.This monitoring system can easily beupgraded by flashing software.

Engine compartment. All the regularengine maintenance is made througha large, hinged door located on the leftside of the machine. This compartmentgives access to the engine fuel filtersand water separator, the engine oilfilter, the engine oil dipstick and filler,the electric fuel priming pump, and theengine air pre-cleaner and filters.

Cooling package. Cores and fan areaccessible from ground level, for easycleaning and maintenance. Opening theradiator front grid will allow full accessto the engine fan. The fan is mountedon a swing-out door that will provideaccess to the cores. The other side of thecores is accessible through the enginecompartment.

Grouped pressure taps. Pressure tapsallow for quick measure andtroubleshooting of the hydraulic system.These pressure taps are all located inthe left service access door, and areaccessible from ground level.

Ecology Drains. Ecology drains providean environmentally safer method todrain fluids. They are included on theradiator (coolant) and the hydraulictank, and for the engine oil change.

Product Link. This system streamlinesdiagnostic efforts, downtime andmaintenance scheduling and costs byproviding communication flow of vitalmachine data and location informationbetween the dealer and the customer.Product Link provides updates onservice meter hours, machine conditionand machine location.

Cat Machine Security System (MSS).MSS uses electronically coded keysselected by the customer to limit usageby individuals or time parameters.MSS deters theft, vandalism andunauthorized usage. Each machinesystem can store up to 255 keys andeach key can be used on as manymachines as desired. MSS can becontrolled by a Personal Data Assistant.Field installation is available.

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Serviceability and AccessibilityGrouped service points and easy maintenance result in increased machine up-time.

Variable Pitch Power Angle and TiltBlade (VPAT). The VPAT blade isspecifically designed for finish grading,backfilling ditches, cutting V ditches,windrowing, fill spreading, mediumland clearing and heavy dozing.The VPAT blade gives the operatorthe ability to hydraulically adjust theblade lift, angle and tilt from theoperator station.

VPAT Positions. For optimumperformance, pitch is manuallyadjustable:

• 55° – maximum blade loads and bestfinish grading

• 57° and 59.5° – good blade loadsand general dozing

• 61° – maximum blade penetration andreduced material retention on blade

Foldable Blade. In order to comply withtransportation regulations, a foldableblade is offered on the XL configuration.Without blade removal, the machinewill be within the 2.55 meter (8.5 ft)width requirement.

C-Frame.

• C-Frame is solidly pinned to themainframe for good blade controland eliminates blade motion dueto track oscillation or side forces.

• C-Frame to tractor joint is sealedand lubricated with remote linesfor extended service life and quietoperation.

• Large C-Frame tower bearingsimprove durability.

• Lubrication points are located atall pin joints to reduce wear.

Parallelogram Ripper. The multi-shankparallelogram ripper lets you chooseone, two or three shanks depending onjob conditions. Curved or straight shanksare available. High strength mainframeallows having stiffer ripper mountingblocks for severe drawbar applications.

Drawbar. The D6K is equipped with adrawbar for pulling work tools such as:

• Disks

• Compactors

• Chopper wheels

• Retrieval of other equipment

Hydrostatic Winch. PA50 winchis driven by its own closed-loophydrostatic system consisting of avariable displacement hydraulic pistonpump and motor. This winch offersoutstanding control of the load withinfinitely variable modulation of speedand pull, and lowers operator effort.

Check with your Caterpillar Dealerfor details.

Sweeps and Screens. Optional sweepsand screens are available. Sweeps helpto shield critical components on thetractor such as hydraulic lines, exhauststacks, cab windows and lights fromdamage. Screens provide protection tothe cab windows. This equipment isrecommended for land clearing, forestryor other severe applications.

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Work ToolsCat ® Work Tools and Ground Engaging Tools (G.E.T.) are designed to provide strength andflexibility to match the machine to the job, maximizing performance.

Product Support. Your Cat Dealeroffers a wide range of services that canbe set up under a Customer SupportAgreement (CSA) when you purchaseyour equipment. The dealer will helpyou choose a plan that can covereverything from the machine andattachment selection to replacement.This will help you get the best returnon your investment.

Remanufactured Components.Save money with remanufactured parts.You receive the same warranty andreliability as new products at a costsavings of 40 to 70 percent.

Service Capability. Whether in thedealer’s fully equipped shop or inthe field, you will get trained servicetechnicians using the latest technologyand tools.

Selection. Make detailed comparisonsof the machines you are consideringbefore you buy. How long do componentslast? What is the cost of preventivemaintenance? What is the true cost oflost production? Your Cat Dealer cangive you answers to these questions.

Purchase. Consider the financingoptions available as well as day-to-dayoperating costs. This is also the timeto look at dealer services that can beincluded in the cost of the machine toyield lower equipment owning andoperating costs over the long run.

Operation. Improving operatingtechniques can boost your profits.Your Cat Dealer has training videotapes,literature and other ideas to help youincrease productivity.

Replacement. Repair, rebuild orreplace? Your Cat Dealer can helpevaluate the cost involved so you canmake the right choice.

Maintenance. More and more equipmentbuyers are planning for effectivemaintenance before buying equipment.Choose from your dealer’s wide rangeof maintenance services at the time ofyour purchase. Repair option programsguarantee the cost of repairs up front.Diagnostic programs such as ScheduledOil Sampling and Technical Analysishelp avoid unscheduled repairs.

SAFETY.CAT.COM™.

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Total Customer SupportYour Cat Dealer offers a wide range of services that can be set up with a Customer SupportAgreement. The dealer can customize a plan for you, from PM service to total machinemaintenance, allowing you to optimize your return on investment.

15D6K Track-Type Tractor specifications

Undercarriage

Width of Shoe – XL 560 mm 22 inWidth of Shoe – LGP 760 mm 30 inShoes/Side – XL 40Shoes/Side – LGP 40Grouser Height 48 mm 1.9 inTrack Gauge – XL 1770 mm 70 inTrack Gauge – LGP 2000 mm 79 inTrack on Ground – XL 2645 mm 104 inTrack on Ground – LGP 2645 mm 104 inGround Contact Area – XL 3 m2 4,650 in2

Ground Contact Area – LGP 4 m2 6,200 in2

Ground Pressure – XL 42.5 kPa 6.16 psiGround Pressure – LPG 32.7 kPa 4.74 psiTrack Rollers/Side – XL 7Track Rollers/Side – LGP 7

Blades

Blade Type VPATXL VPAT – Blade Capacity 2.7 m3 3.5 yd3

XL VPAT – Blade Width 3077 mm 10 ftLGP VPAT – Blade Capacity 2.9 m3 3.8 yd3

LGP VPAT – Blade Width 3360 mm 11 ft

Ripper

Type ParallelogramNumber of Pockets 3Overall Beam Width 1951 mm 76.8 inBeam Cross Section 165 � 6.5 �

211 mm 8.3 inMaximum Penetration – XL 360 mm 14.2 inMaximum Penetration – LGP 360 mm 14.2 inWeight – With One Shank 845 kg 1,863 lbEach Additional Shank 34 kg 75 lb

Engine

Engine Model Cat® C6.6 ACERT™Flywheel Power 93.2 kW 125 hpNet Power – Caterpillar 93.2 kW 125 hpNet Power – ISO 9249 93.2 kW 125 hpNet Power – SAE J1349 92.1 kW 123.4 hpNet Power – EU 80/1269 93.2 kW 125 hpBore 105 mm 4.13 inStroke 127 mm 4.99 inDisplacement 6.6 L 403 in3

• Engine Ratings at 2,100 rpm.

• Net power advertised is the power available at the flywheelwhen the engine is equipped with fan, air cleaner, mufflerand alternator.

• No derating required up to 3000 m (9,842 ft) altitude, beyond3000 m (9,842 ft) automatic derating occurs.

Service Refill Capacities

Fuel Tank 295 L 77.9 galCooling System 24.4 L 6.4 galEngine Crankcase 16.5 L 4.35 galFinal Drive (XL each) 15 L 4 galFinal Drive (LGP each) 23 L 6 galHydraulic Tank 58 L 15.3 gal

Weights

Operating Weight – XL 12 886 kg 28,409 lbOperating Weight – LGP 13 467 kg 29,690 lbShipping Weight – XL 12 611 kg 27,802 lbShipping Weight – LGP 13 192 kg 29,083 lb

• Operating Weight: Includes cab, air suspended seat,VPAT dozer, drawbar, transmission, 3-valve hydraulics,engine enclosures, operator and 95% fuel.

• Shipping Weight: Includes cab, air suspended seat,VPAT dozer, drawbar, transmission, 3-valve hydraulicsand engine enclosures.

16 D6K Track-Type Tractor specifications

Standards

• ROPS (Rollover Protective Structure) offered by Caterpillarfor the machine meets ROPS criteria SAE J1040 MAY94,ISO 3471:1994 and DLV criteria SAE J397B, ISO 3164:1995.

• FOPS (Falling Object Protective Structure) meetsSAE J/ISO 3449 APR98 Level II, ISO 3449:1992 Level IIand DLV criteria SAE J397B, ISO 3164:1995.

• Brakes meet the standard SAE J/ISO 10265 MARCH99,ISO 10265:1998.

• The operator sound exposure Leq (equivalent soundpressure level) measured according to the work cycleprocedures specified in ANSI/SAE J1166 OCT 98 is 81 dB(A),for cab offered by Caterpillar, when properly installed andmaintained and tested with the doors and windows closed.

• The operator sound pressure level measured according tothe procedures specified in ISO 6394:1998 is 72 dB(A) forthe cab offered by Caterpillar, when properly installed andmaintained and tested with the doors and windows closed.

• Hearing protection is recommended when operating with anopen operator station and cab (when not properly maintainedor doors/windows open) for extended periods or in noisyenvironment.

• The exterior sound pressure level for the standard machinemeasured at a distance of 15 meters according to the testprocedures specified in SAE J88 APR 95, mid-gear-movingoperation, is 79.5 dB(A).

• The labeled sound power level is 109 dB(A) measuredaccording to the test procedure and conditions specifiedin 2000/14/EC.

Winch

Winch Model PA50Weight* 907 kg 2,000 lbWinch and Bracket Length 842 mm 33.1 inWinch Case Width 905 mm 35.6 inDrum Diameter 203 mm 8 inDrum Width 274 mm 11 inFlange Diameter 457 mm 18 inRecommended Cable Size 19 mm 0.75 inOptional Cable Size 22 mm 0.87 inDrum capacity – 91 m 300 ftRecommended cableDrum capacity – Optional cable 66 m 216 ft 6 in

* Weight: Includes pump, operator controls, oil, mountingbrackets and spacers.

17D6K Track-Type Tractor specifications

Dimensions (approximate)

Tractor DimensionsXL LGP

1 Track gauge 1770 mm 70 in 2000 mm 79 in2 Width of tractor

With the following attachments:Standard shoes without blade 2330 mm 92 in 2760 mm 109 inStandard shoes with VPAT blade angled 25° 2817 mm 111 in 3118 mm 123 inStandard shoes with foldable blade in transport position 2336 mm 92 in 2760 mm 109 in

3 Machine height from tip of grouser:With the following equipment: — —

ROPS canopy 2958 mm 116 in 2958 mm 116 inROPS cab 2958 mm 116 in 2958 mm 116 in

4 Drawbar height (center of clevis)From ground face of shoes 483 mm 19 in 483 mm 19 in

5 Length of track on ground 2645 mm 104 in 2645 mm 104 in6 Length of basic tractor (with C-Frame) 4220 mm 166 in 4220 mm 166 in

With the following attachments,add to basic tractor length: — —With the following attachments, add to basic tractor length:

Drawbar 320 mm 13 in 320 mm 13 inRipper 1133 mm 45 in 1133 mm 45 inPA50 winch 640 mm 25 in 640 mm 25 inVPAT blades, straight 468 mm 18 in 468 mm 18 inVPAT blade, angled 25° 1116 mm 44 in 1179 mm 46 in

7 Height over stack from tip of grouser 2914 mm 115 in 2914 mm 115 in8 Height of grouser 48 mm 2 in 48 mm 2 in9 Ground clearance from ground face of shoe (per SAE J1234) 360 mm 14 in 360 mm 14 in

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18 D6K Track-Type Tractor specifications

Standard EquipmentStandard equipment may vary. Consult your Caterpillar dealer for details.

HYDRAULICSHydraulics, 3 valveImplement load sensing pump

UNDERCARRIAGESystemOne™ UndercarriageSprocketed center tread idlersLifetime lubricated track rollers (7) and idlersCarrier rollersTracks, 40 sections – XL configuration 560 mm (22")/

LGP configuration 760 mm (30")Adjustable idler height positionHydraulic track adjusters

OTHER STANDARD EQUIPMENTC-FrameFuel tank and guardHinged crankcase guardLockable engine enclosuresIdler guardsHinged radiator grill and swinging fanFront pull deviceRigid drawbarEcology drains (engine oil, power train and implement oil,

and engine coolant)Swing-out radiator fanS•O•SSM ports (engine, power train, hydraulics and

engine coolant)ANTIFREEZE

Extended life coolant, –37° C (–35° F)HYDRAULIC FLUID

Cat HYDO Advanced 10

ELECTRICALHornBackup alarmConverter 12V, 15-ampDiagnostic connectorHeavy duty 950 CCA batteriesIntegrated four front halogen lights, two rear halogen lightsAlternator, 24V, 95 Amp, heavy duty brushless24V Starter

OPERATOR ENVIRONMENTROPS/FOPS cab with sliding side windows and air

conditioningCat C500 comfort cloth air suspended seat with adjustable

armrests76 mm (3-inch) retractable seat beltAdjustable seat-mounted, electro-hydraulic controlsFoot restsCompact Instrument Cluster including:

Gauges for engine coolant temperature, hydraulic oil temperature and fuel level

12 indicatorsdigital display (ground speed, engine RPM, hour meter)

Rotary throttle switchElectronic travel speed limiterIndependent forward/reverse speed settingsSingle pedal combining deceleration and braking functionsMessenger: electronic monitoring and display systemRearview mirrorAuxiliary mirror for rear attachment12V Radio ReadyTwo 12V power portsCoat hookStorage compartmentCup holderHeavy duty rubber floor matWindshield washers and wipers, front and rear

POWER TRAINCaterpillar C6.6 ACERT diesel engine, turbocharged and

aftercooled with Common Rail fuel systemAluminum bar plate cooling system (radiator, power train,

aftercooler)Hydraulic demand fanAir cleaner with precleaner, automatic dust ejection and

under-hood intakeElectric fuel priming pump with integrated fuel/water

separatorDual path, electronic control, closed-loop hydrostatic

transmissionUnder-hood mufflerStarting aid, ether injection

19D6K Track-Type Tractor specifications

Optional EquipmentOptional equipment may vary. Consult your Caterpillar dealer for details.

BLADESVPAT XL bladeVPAT LGP bladeVPAT XL blade, foldable

REAR ATTACHMENTSWinch preparationRipper, multi-shank

REAR ATTACHMENT CONTROLControl, ripperControl, winchControl, ripper and winch

MACHINE CONTROL AND GUIDANCEInstallation, AccuGrade ready

STARTING AIDSHeater, engine, coolant, 120VHeater, engine, coolant, 240V

RIPPER ATTACHMENTSTeeth, curved, set of 3Teeth, straight, set of 3

OTHER ATTACHMENTSFuel tank, fast fillEnclosure, sound suppressionMachine Security SystemRotating beacon

ANTIFREEZECoolant, ext. life, –50° C (–58° F)

FIELD INSTALLED ATTACHMENTSPA50 winchRadio

POWER TRAINOil change, high speedFan, demand, reversing

UNDERCARRIAGETRACK PAIRS, XL

Track, 510 mm (20") MS XL Track, 510 mm (20") ES XL Track, 560 mm (22") ES XL Track, 510 mm (20") MS center hole, XL

TRACK PAIRS, LGPTrack, 610 mm (24") MS LGP Track, 610 mm (24") ES LGP Track, 760 mm (30") ES LGP Track, 760 mm (30") Self cleaning, LGP

OPERATOR ENVIRONMENTCanopyCanopy, heatedCab, polycarbonate windowsSeat, vinyl, air suspensionSeat, cloth, air suspension, heated

HYDRAULICSHydraulics, winch readyHydraulics, 4 valveHydraulic oil, biodegradable

GUARDSGuard, fuel tank, heavy dutyGuard, fuel tank, heavy duty for winchGrill, radiator, heavy dutyGuard, crankcase, heavy dutyGuard, track guiding, centerGuard, track guiding, longGuard, track guiding, moderate serviceGuard, lift cylinderGuard, lights, rearScreen, rear, cabScreen, side, cabScreen, rear, canopyScreen, front and sides, canopySweeps, cabSweeps, canopy

R

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

© 2008 CaterpillarAll Rights Reserved

Printed in U.S.A.

Materials and specifications are subject to change without notice.Featured machines in photos may include additional equipment.

See your Caterpillar dealer for available options.

CAT, CATERPILLAR, ACERT, SystemOne, AccuGrade, SAFETY.CAT.COM,their respective logos, “Caterpillar Yellow” and the POWER EDGE trade dress,

as well as corporate and product identity used herein, are trademarksof Caterpillar and may not be used without permission.

AEHQ5736-02 (9-08)

Replaces AEHQ5736-01

D6K Track-Type Tractor