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AP655DAsphalt Paver®Cat ® C6.6 Engine with ACERT TechnologyHopper Capacity6.5 m 3 (14.1 tonne)Gross Power (SAE J1995) at 2200 rpm129.5 kW/174 hpStandard Paving RangeNet Power (ISO 9249) at 2200 rpm121.9 kW/163.5 hpAS4251C Screed2550-5000 mmOperating Weight withMaximum Paving WidthAS4251C Screed19 165 kgAS4251C Screed8000 mm

High Performance and Operator Comfort Make the AP655D the Perfect ChoiceThe AP655D sets the standard in performance, operator comfort, ease of use,mobility and reliability.C6.6 Engine with ACERT TechnologyACERT Technology works at thepoint of combustion to optimize engineperformance. ACERT Technologyincorporates an electronic controller toprecisely deliver multiple injections offuel. These multiple injections arecombined with a refined airmanagement system in order togenerate fewer emissions and optimizefuel combustion while meetingEuropean EU Stage IIIA engineemission regulations. pg. 4Dual Operator’s StationThe AP655D utilizes dual swing-outoperator’s station with sliding controlconsole. The stations can be rotatedinto five different positions and thesliding control console providesoperator comfort. The operator’sstations can be positioned beyond themachine frame for greater visibility tothe steering guide when matching ajoint or paving near curbs, whereprecise paving control is required.pg. 5Advisor Monitoring SystemThe LCD Advisor located on thesliding control console provides aninteractive interface to assist theoperator. The system includes projectplanning calculators, start-up checklists,engine operating parameters and manyother features to assist the operator.pg. 5High Capacity Cooling SystemThe high-capacity top-mounted coolingsystem performs efficiently in highambient temperatures. The variablespeed fan draws air across the enginecompartment and exhausts it toward thehopper in order to provide a coolerworking environment for the crew.pg. 4ScreedThe AP655D is available with theAS4251C double width hydraulicpower extendible asphalt screed,available with variable frequencytamper and vibrators and with LPG andelectric heating system. The AS4251Clay material to the desired width anddepth while providing a smooth finishwith initial compaction. pg. 8Cat ® Asphalt Pavers continueto lead the industry and meet yourdemanding job requirements.Many easy-to-use features andtechnologies have been developedin order to guide your crewin producing high quality matstime and time again. Contact yourCaterpillar ® Dealer today formore information.2

Versatility Defines the AP655DThe AP655D excels in a wide range of applications from routine commercial jobs todemanding highway operations.UndercarriageThe AP655D can be equipped witheither the Mobil-trac undercarriage orthe steel track undercarriage. TheMobil-trac system combines thetraction and flotation benefits of acrawler undercarriage with the mobility,speed, and ride characteristics of awheel paver. A steel track undercarriageis available as a more economicalalternative. pg. 6ManeuverabilityCat track-type pavers providemaneuverability that is unmatched inthe industry. The AP655D utilizes threesteering modes including PAVE,TRAVEL and MANEUVER. TheMANEUVER mode is unique toCaterpillar. This mode permits thetracks to counter-rotate, allowing themachine to turn within its ownfootprint. This unique feature providesquick mobility in commercialapplications when moving to a newstarting point.Independent Material Handling SystemThe material handling system providesprecise mix delivery through the mostproven system in the industry. Theindependent operation of the augers andconveyors reduces component wear andminimizes the potential for mixsegregation.Reversible augers and conveyors assistthe crew by reducing handwork andclean-up. The reversible augers are ableto pull asphalt back into the mainscreed area when retracting theextenders while the reversibleconveyors pull asphalt back into thetunnels, resulting in limited spillage.pg. 7Generator and Auxiliary Power PanelThe optional high capacity generatorquietly powers the standard electricscreed heat system for fast heat-up anduniform screed plate temperatures.The optional auxiliary power panelprovides power for lighting and job sitework tools. pg. 83

Cat C6.6 Engine with ACERT TechnologyACERT Technology incorporates a series of innovations working at the point ofcombustion to optimize engine performance while providing high reliability and easyservicing.Cat C6.6 Engine with ACERT Technology. The C6.6 engineprovides a full-rated gross power (SAE J1995) of 129.5 kW(174 hp) at 2200 rpm. Meets European EU Stage IIIA engineemission regulations.Turbocharged and Air-To-Air Aftercooling (ATAAC).The turbocharged air-to-air aftercooling system provides highhorsepower with increased response time while keepingexhaust temperatures low for long hours of continuousoperation. Air-to-air aftercooling keeps air intake temperaturesdown, maximizing fuel efficiency and minimizing emissions.Sound Reduction features. The C6.6 engine sound reductionfeatures include composite valve covers with a fully isolatedbase, a steel oil pan and a cast iron front cover. The HEUIfuel systems rate-shaping technology also provides control ofsound and vibration levels.Service, Maintenance and Repair. Easier service, maintenanceand repair is accomplished by monitoring key functions andlogging critical indicators. Advanced electronic diagnosticcapabilities are possible using Cat Electronic Technician.High Capacity Cooling SystemThe deck-mounted cooling system provides a cool environment by exhausting hot air towardthe hopper, away from operators and ground personnel.High Ambient Temperature Cooling System. The standard,high-capacity cooling system provides efficient operation inhigh ambient temperatures. The system design provides quietoperation that benefits the operator and the surroundingenvironment.Efficient Airflow design. The airflow design draws ambientair across the engine compartment and through the coolers.This design allows the exhaust air to exit toward the hopper inorder to provide a cooler engine compartment and cooleroperating environment.Variable Speed Fan. The variable speed fan is electronicallycontrolled and hydraulically driven to provide on-demandcooling. This on-demand operation reduces engine powerdemand, lowers sound levels, and increases fuel efficiency.4

Operator Comforts for a Productive EnvironmentThe dual operator’s station with sliding control console promotes optimum comfort,visibility and ease of use.Dual Operator’s Station. The ergonomic dual operator’s stationincorporates a sliding control console, ground speed indicators,adjustable suspension seats, armrests and retractable seat belts.Operator Visibility. The dual swing-out operator’s station canbe positioned in one of five different locations to provideoptimum visibility. The stations can extend beyond themachine frame for good visibility when paving applicationsrequire precise control.Sliding Control Console. The sliding control console is fullyequipped with comprehensive controls allowing the operator toconveniently monitor all machine functions. A lockable vandalcover protects console controls.Canopy option. The optional folding canopy provides fullwidth with two side extending wings for optimum comfort andprotection. The canopy can be lowered manually for easytransportation.Advisor Monitoring System Simplifies OperationThe sliding control console includes the Advisor Display that provides many unique featuresto assist the operator.Advisor DisplayAdvisor Monitoring System (AMS). The LCD Advisorprovides access to a start-up checklist, operator preferences,engine and machine operating parameters and “PavingCalculator”.The AMS display also allows the operator to: Calibrate the machine components Set the automatic engine speed control Monitor engine rpm’s and operating temperatures Determine the required paving speed and tonnagerequirements for a particular job Determine performance parameters such as distancetraveled, operating hours, paving distance, paving hours,and engine fuel consumption Set the optional friction steering tension to the operator’spreference5

Mobil-trac Undercarriage Performs in All ApplicationsThe Mobil-trac undercarriage provides superior durability while delivering unmatchedmobility, ride, and traction in a variety of conditions.Automatic BeltTensioning SystemSmooth BeltTread-Bar BeltOscillating BogiesMobil-trac Undercarriage. The Mobil-trac undercarriagecombines the flotation and traction benefits of a crawlersuspension with the mobility and ride quality of a wheel-typepaver.The Mobil-trac system includes a durable, high strength rubbertrack belt with a thick outer cover and internal layers offlexible steel cable.Large Ground Contact Area. The Mobil-trac’s ground contactarea is 3020 mm long and 406 mm wide. This large footprintprovides uniform weight distribution over the entire length ofthe belt.Choice of Belt Designs. The Mobil-trac system offers atread-bar style belt or a smooth belt. Both belt styles are58 mm thick and provide good performance and wearcharacteristics, however, the smooth belt with beveled edgesprovides less disturbance on soft base materials.Two Speed Planetary Drive. A fixed displacement motor drivesa two-speed planetary providing quick mobility around thejob site.Two SpeedPlanetaryFriction DriveWheelSteel Track UndercarriageThe steel track undercarriage is available as an economic alternative to the Mobil-trac.OscillatingBogiesQuad Rear Bogie. A special quad bogie is positioned near therear of the steel track in order to evenly distribute the load.D3 Track Rails. The steel track system incorporates D3 dozertrack rails. The sealed and lubricated links include a splitmaster link for dependable performance.Long Life Bonded Track Pads. The track pads contain a specialrubber compound in order to provide long life and goodtraction.Single Speed Planetary Drive. A variable displacement motordrives a single-speed planetary that provides variable speedselection.Large Ground Contact Area. The steel tracks ground contactarea is 3048 mm long and 356 mm wide. This large footprintprovides uniform weight distribution over the length of thetrack.Automatic TrackTensioning SystemD3 TrackRailsQuad RearBogieSingle SpeedPlanetary6

Independent Material Handling System Promotes Hands-Free OperationThe material handling system promotes hands-free operation by providing features such asindependent control of each auger and each conveyor.152436Precise Mix Delivery. The material delivery system providesprecise mix delivery with minimal operator monitoring. Theleft and right conveyors in addition to the left and right augersare controlled independently.Outboard-Mounted Conveyor Drives. The conveyors haveoutboard-mounted motors, reducers and drive chains thatmaximizes the tunnel area and reduces segregation.Independent Auger Drive. The auger drive assembly isindependent of the tractor which allows the distance betweenthe two conveyors to be significantly reduced. Keeping theconveyors close together allows the material to flow togethermore easily as it discharges into the auger cavity. The tunneland auger design eliminates voids under the chain case inorder to minimize segregation.Adjustable Auger Range. The auger assembly is hydraulicallyadjustable with a range of 215 mm. The ability to adjust theauger assembly simplifies loading and unloading from atransport vehicle. Also, when working with larger stone mixes,the augers can be adjusted to allow the mix to flowunrestricted under the auger assembly.Power Folding Front Apron (Optional). The front hopper apronfolds rearward providing good material flow. It reduces cleanout effort and time, a feature the crew will really appreciate.A switch located on the operating control console providespower to the hydraulic folding apron.*Note: The front hopper apron is standard without the powercontrol and folding wings. Manual operation is required.Adjustable Push Rollers. The four position adjustable pushrollers provide a contact point between the paver and the truckto center the load and assist steering while unloading.781 Curved Hopper Design2 Independently ControlledConveyors3 Narrow Chain Guard4 Folding Front Apron5 Independent Auger Drives6 406 mm Auger Diameter7 Foldable Wings8 Power Folding Front Apron7

Optional Generator System Provides Quiet PowerThe high capacity generator provides power for the electric screed heat, auxiliary lightsand job site tools.GeneratorAuxiliary PowerPanelIndustrial, Single-Phase A.C. Generator. The tractor-mountedgenerator provides 25 kW of power at 60 Hz for the electricscreed heat and the auxiliary power panel. Circuit breakerprotection, internal electronic voltage regulation and a dualbearing design provide reliability.Choices Available (Belt or Hydraulic Driven). The belt-drivengenerator provides full power with a variable frequency whenthe engine speed increases above 1275 rpm.The hydraulic-driven generator provides full power with afixed frequency of 60 Hz when the engine speed increasesabove 1275 rpm.Optional Auxiliary Power Panel. The power panel provides4 kW of power for auxiliary lighting and job site work tools.The panel includes choice of two 240 V or two 120 Vreceptacles, protected for ground fault circuit interrupt (GFCI).Activating the “Tool Mode” switch provides power at 50 Hzfor frequency sensitive tools.Screed That Delivers QualityAS4251C double width hydraulic power extendible asphalt screed provides even materialflow and unparalleled stability that result in smooth, high quality mats.The AS4251C screed paves from 2550 mm to 5000 mm.With mechanical extensions added to both sides, maximumpaving width is 8000 mm.AS4251C Screed. The screed is available with variablefrequency tamper and vibrators and with LPG or electricheating system. The screed control panels include materialfeeding controls for easy ground crew usage.Tamper and Vibrator. Automatically operated when the AP655Dadvances following a preset ramp. Tamper starting and stoppingramps are adjustable in order to maintain an optimum matfinish. The AS4251C screed is equipped with electronicignition, automatic and independent adjustment of thesmoothing plate temperature for central and each mobil plate.LPG Heating System. The system provides high efficiencyburners and optimum thermostatic temperature control.Electric Heating System. The system provides a tractormountedgenerator, replaceable heating elements and operatorfriendly controls providing a cleaner environment. Feature &benefits include simple operation, fast heat-up time, multi-zoneheating elements and thermostatic control of all screed plates.Heavy-duty, user-friendly screed heating control unit with selfdiagnosticcontrol is positioned at the rear of the machine foreasy ground crew usage.8

Serviceability Features That You’ve Come to ExpectSimplified service means more time spent paving and less time spent on maintenance.Advisor Monitoring System (AMS). The Advisor display listsdiagnostic fault codes for machine functions makingtroubleshooting quick and easy.Manual Overrides. The hydraulic pump solenoids incorporatemanual overrides to assist troubleshooting procedures.Large Access Doors and Panels. Preventative maintenancepoints can be accessed through the large swing open accessdoors and panels.Remote Lubrication Points. Lubrication points are groupedin order to make routine service quick and easy.Color-Coded and Numbered Electrical Wiring. Troubleshootingis efficient and simplified with the color-coded and numberedwiring.Optional EquipmentCaterpillar offers many options that allow the paver and screed to be configured to yourspecific application. Contact your dealer for more details.Tractor Options Auger and Mainframe Extensions Auxiliary Power Panel CE Certificate Decelerator Pedals Ecological Washdown System Folding Operator’s Station Canopy Generator (Belt or Hydraulic Driven) Italian/German Road Homologation Lights (High Intensity Discharge andHalogen) Power Folding Hopper Apron Proportional Paddle Sensor Sonic Feeder Sensors Steering Guide Uptime Kit Ventilation System Warning BeaconControls and Grade References Automatic Grade and Slope Control Non-Contacting Sonic Grade Sensor Contacting Grade Sensor Outboard Leveler, 9.15 m and 12.2 m Inboard Leveler Sonic Averaging Beam Rigid Ski, 9.15 m and 12.2 mScreed Options Extensions for: 5.5 m – 6.5 m –7 m – 8 m Foldable End Gates Power Crown Adjuster Tamper, Vibrator and CounterbalanceDisplay ControlAP655D Asphalt Paver specifications9

EngineSuspensionTransmissionSix cylinder Caterpillar C6.6 withACERT Technology, turbochargedair-to-air after-cooled diesel engine.Meets European EU Stage IIIA engineemission regulations.Gross PowerSAE J1995Net PowerISO 9249EEC 80/1269BoreStrokeDisplacement2200 rpm129.5 kW/174 hp2200 rpm121.9 kW/163.5 hp121.9 kW/163.5 hp105 mm127 mm6.6 litersAll engine horsepowers are metricincluding front cover.Net power ratings are tested at thereference conditions for the specifiedstandard.Net power advertised is the poweravailable at the flywheel when theengine is equipped with alternator,air cleaner, muffler and fan.Derating is not required up to analtitude of 3000 m.The high-speed Mobil-tracundercarriage consists of a durable,high-strength rubber belt with a thickouter cover that includes five internallayers of flexible steel cable. The trackis 3023 mm long and 457 mm wide.Drive traction is provided by ahydraulic tensioning cylinder withaccumulator that maintains frictionbetween the belt and the drive wheels.Rubber-coated steel mid-wheelsprovide smooth ride and high tractionefficiency by distributing weight overthe entire length of the belt.The steel track undercarriage consistsof four 241 mm diameter track rollers,a special rear, four roller 152 mmdiameter bogey, and two 152 mmdiameter single roller return idlers perside. Rollers are bogied in pairs andeach pair is articulated for optimumleveling capability. Rollers ride onCaterpillar ® D3 track rails. Track railsare sealed, lubricated and include a splitmaster link for quick track removal andinstallation. Track tensioning isprovided by a parallel link swing armdesign that provides constant hydraulicpressure. Track tension is maintainedwithout manual adjustment. Recoilforces are controlled by check andrelief valves.Track BaseMTS undercarriage 3020 mmSteel Track undercarriage 3060 mmThe Mobil-trac drive system utilizestwo dual path hydrostatic pumps andtwo fixed displacement motors.The pumps are infinitely variable withelectronic displacement controls (EDC)for steering and speed. Single speedmotors drive two speed planetary gearboxes to provide two propel ranges.The drive system is equipped with twoswitches located at the operator’sstation control console. The twoswitches are used as manual overridesand are directly linked to EDC’s.The steel track drive system utilizestwo dual path hydrostatic pumps andtwo variable displacement motors.The pumps are infinitely variable withelectronic displacement controls (EDC)for steering and speed. The two speedmotors drive single speed planetarygear boxes to provide two propelranges. The drive system is equippedwith two switches located at theoperator’s station control console.The two switches are used as manualoverrides and are directly linked toEDC’s.Speeds (forward and reverse)PavingMobil-trac0-25 mpmSteel Track0-25 mpmTravelMobil-trac14.8 km/hSteel Track5.3 km/hBrakesSteeringElectrical SystemPrimary Brake Features A closed-loop hydrostatic systemprovides dynamic braking duringnormal operation.Parking Brake Features Safety and parking brakes systemincludes a spring applied,hydraulically released brake which isactuated by a switch on the operator’sstation control console.Hydraulic power assist steering systemprovides smooth, low effort steering bymeans of a steering wheel. Electric overhydraulic dual path differential steeringassures precise machine control.Steering commands are independent ofpropel speed.Three steering modes including pave,travel and maneuver are selectable atthe operator’s control console.The 24-volt DC electrical system isdesigned for improved durability,reliability and ease of service. Two12-volt batteries with 1400 crankingamps each and a 80-amp alternator areused in the system. Wires are loomedwith vinyl-coated nylon braid toimprove the overall integrity of theelectrical system and to protect againstabrasion.10 AP655D Asphalt Paver specifications

DimensionsJFAP655DGIH KDLABECmmA Tractor length with push roller 4950B Length with push roller and screed 6160C Transport width with screed end gates(hopper raised) 2720Transport width without screed end gates(hopper raised) 2500D Tractor operating width (hopper lowered) 3306E Track gauge width 2200F Operating height with canopy 3840G Transport height with canopy, fumes stackand seat lowered 2920mmH Truck dump height (at hoppers)MTS undercarriage 605Steel Track undercarriage 593I Truck entry width (at hoppers) 3200J Hopper length 1960K Push roller height 533L Clearance 260Hopper capacity (with conveyor tunnels) – m 3 6.5Discharge height at centerMTS undercarriage 577Steel Track undercarriage 566Augers diameter 406Service Refill CapacitiesLitersFuel tank 290Cooling system (total) 30Engine oil w/filter 14Hydraulic oil tank 218Washdown spray system 38WeightsOperating Weights*kgMTS/Steel Track undercarriage 19 165Shipping Weights**Tractor only 15 050Tractor with screed 18 890Weights shown are approximate and include:* 75 kg operator, with canopy, fuel tank 50%, leveling system, standardwidth screed (2.55-5 m).** base machine, canopy lowered, fuel tank 10%, manual apron, standardscreed end gates.AP655D Asphalt Paver specifications11

AP655D Asphalt PaverFor more complete information on Cat products, dealer services, and industry solutions, visit us on the web atwww.cat.comMaterials and specifications are subject to change without notice. Featured machines in photosmay include additional equipment. See your Caterpillar dealer for available options.© 2007 Caterpillar -- All rights reservedHEHG3611 (03/2007) hrCAT, CATERPILLAR, their respective logos, “Caterpillar Yellow” and the POWER EDGE trade dress as well ascorporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.®