Cat® AP-650BOperating weight:

with Extend-A-Mat B Screed 16 280 kg 35,950 lbwith Pavemaster B Screed 14 885 kg 32,765lb

Hopper Capacity 5 cu m 177 cu ftStandard Paving Width 2,44 m 8 ftMaximum Paving Range:

with Extend-A-Mat B Screed 2,44 - 4,75 m 8 - 15 ft 6 inwith Pavemaster B Screed 2,44 - 6,1 m 8 - 20 ft

AP-650BTrackAsphalt Paver

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Turbocharged for top performance andefficiency especially at high altitudeswith no derating required up to 2134meters (7,000 feet).

Transverse-mounted engine providesbetter cooling performance and greateraccessibility for service.

Meets EPA/CARB low emissions engineregulations.

Low sound emission complies withmajor regulatory rules.

Adjustment-free direct injection fuelsystem keeps fuel consumption low.

Intake manifold heater preheatsincoming air for quick cold-weatherstarting.

Closed-loop hydrostatic propel systemprovides efficient, low-maintenanceoperation.

Speed control system maintains presetpaving speeds throughout a job.

Propulsion controller provides accuratecontrol of steering and propulsionsystems, assuring straight-line tracking.

Decel pedal provides foot control ofpropel speed, freeing operator tomanage other paving functions.

Dual path steering system utilizessteering wheel for simplified operation.

Caterpillar® Diesel EngineReliable and durable diesel engine for years of low maintenance operation.

Hydrostatic Drive SystemEfficient hydraulic drive system eliminates chains and other mechanical linkages betweendiesel engine and final drive components.

Variable-Displacement Propel Motors

Electrical Junction Box

Propel/Steering Controller

HydraulicOil Tank

Single-SpeedPlanetaryTrack Drive

Variable-DisplacementPropel Pumps

Electrical DisplacementControl (EDC) Coils

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Operator’s StationSingle operator's station designed for comfort and optimum efficiency.

Control ConsoleFull instrumentation package keeps operator informed of all major systems status.

Symbols and functional worddescriptions are shown for all controls.

Gauges are analog type for quickinterpretation.

Warning lights illuminate and hornalert operator to:

• High hydraulic oil temperature;• Low hydraulic oil level;• Low engine oil pressure; or• High engine coolant temperature.

Speed control system allows theoperator to dial a maximum pavingspeed. Once set, the paver returns to thepreset speed when propel lever is in fullforward position.

Single operator’s station slides fromside to side and includes fully equippedinstrument console and steering wheelwith lockable cover.

Operator’s platform can be positioned305 mm (12") beyond each side of paverfor greater operator visibility.

Operator’s seat pivots 152 mm (6") tothe left or right to further improveoperator visibility.

Low-mounted engine providesunobstructed forward visibility

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Left and right feeders and left and rightaugers are all controlled independently,eliminating the need for feeder gates.

Once the feeder speeds are set, theratio of feeder speed to the maximumauger speed is automaticallymaintained by the material handlingcontroller, regardless of propel rate orpaving widths.

To control mix delivery, the operatorsets a speed rate for each feeder thatwill maintain the desired mix level inthe left and right auger chambers.

Component wear is reduced becausefull feeders run at slower speeds.

Potential for mix segregation isminimized because head of materialremains constant.

Gateless feeders always run full of mixregardless of the speed required to fillthe auger chamber.

Drag pans are constructed withabrasion resistant, heat treated steel.

Feeder flight bars are forged steel andpinned to two strands of roller bushedchain.

When changes in feeder speed areneeded, delivery of mix to the augersis immediate.

Potential for segregation is reducedwith slower running feeders, especiallywhen working with large stone mixes.

Exclusive Feeder/Auger Control SystemPrecise mix delivery through the most advanced material handling system.

Gateless Feeders Slower running feeders reduce wear and segregation.

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Adjustable Height Auger Assembly Promotes mat consistency and minimizes segregation.

Feeder Design Improves Mix FlowTunnel construction helps minimize segregation.

Distance between the two feeders issignificantly reduced because the augerdrive assembly is not part of the tractor.

Narrow distance between feedersallows flow from both feeders to blendtogether easily as they discharge intothe auger cavity. This design helpsminimize segregation.

Since the auger case is not attached tothe tractor, voids under the chain caseare eliminated.

Auger assembly can be hydraulicallyadjusted 171 mm (6.75") .

When working with larger stone mixes,segregation can often be eliminated orminimized by raising the augers to allowmix to flow unrestricted under the augerassembly.

Ability to raise the auger assemblysimplifies loading and unloading from atransport vehicle.

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Computer determined track rollerplacement and special triple roller rearbogies achieve smoother ride.

Cat D3 track rails including sealedtracks with split master link fordependable, low maintenanceperformance.

Automatic track tension systemprovides low maintenance and fewadjustments.

Increased tractive effort with standardrubber track pads. Two-bolt attachmentsystem for easy pad replacement.

Large swing-open doors and panelsprovide access to all service areas.

Transverse engine mounting providesground-level access to hydraulic pumpsand engine cooling system.

Color coded and numbered wiringsystem simplifies troubleshootingelectrical systems.

Lubrication fittings are clustered forquick service.

Propulsion and material controllersprovide diagnostic capability fortrouble shooting hydraulic andelectrical systems.

UndercarriageTrack system delivers superior ride quality.

ServiceabilitySimplified service means more paving and less maintenance time.

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Extend-A-Mat B Screed - Model 8-16BVariable width, power extending screed increases productivity and lowers operating costs.

Pavemaster B Screed - Model 8BHeavy-duty conventional fixed-width screed provides simple economical operation.

Model 8B has a fixed paving width of2,44 m (8'). With cutoff shoes andextensions its paving range is from 1,8m to 6,1 m (6' to 20').

Two fuel oil burners with electricignition provide even screed plateheating. Insulated combustionchambers provide even heatdistribution.

Hydraulic strike-offs extend to 762 mm(2' 6") on both sides of screed and have152 mm (6") screed plates. Strike-offshave on-the-go height and slopeadjustment as standard features. Theycan be sloped down 8 degrees or 14percent (no up slope).

Model 8-16B paves from 2,44 m to 4,75m (8' to 15' 6"). With cutoff shoes andextensions, range is 1,8 m to 6,1 m (6' to20' 2").

Mat thickness and crown are accuratelycontrolled at any paving width.

Extenders slope from 14 percent belowto 2 percent above horizontal and can beadjusted on-the-go.

Four fuel oil burners with electricignition provide even screed plateheating. Insulated combustion chamberprovides even heat distribution.

Triangular configuration of extendertubes and frame member improvestorsional resistance.

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TractorOscillating Push Rollers provide contact point between paverand truck to center load and assist steering.

Truck Hitch provides positive locking between paver and truckwhen unloading trucks. Hydraulically actuated from theoperator’s console.

Lighting Package consists of four variable position sealedbeam flood lights, two mounted forward and two mounted tothe rear, illuminate work area.

Hazard Light consists of rotating amber beacon and mount,increasing visibility during paving or roading of paver.

Controls and ReferencesAutomatic Grade and Slope Controls provide full proportionalcontrol for both longitudinal grade and transverse slope.

Basic package includes two screed mounted control units,slope sensor and mounting hardware. Option includes wand orsonic grade sensors.

Auger/Feeder Control Sensors monitor material level in frontof screed and proportionally control material feed to maintaindesired level of mix ahead of screed. This system fits paddle orsonic sensors.

Rigid Ski is a triangular truss rigid ski that rides directly on thepavement. Grade sensor can reference directly off ski or astringline mounted to the ski. Available in 9,1 m (30') and 12,2 m (40') lengths.

Outboard Leveler is a traveling multi-foot outboard mountedgrade reference that provides a mean average on the surface onwhich it is operating. Available in 9,1 m (30') and 12,2 m (40')lengths.

Inboard Leveler is a traveling stringline with many of thefeatures of the Outboard Leveler. Mounts ahead of the screedextensions and inboard of the screed end plate. Used whenoutboard referencing is not practical.

Mobile Stringline consists of a two-section arrangement ofbeams and sleds that mount outboard of the screed. Packageincludes beams, sleds, stringline, pivot pins, brackets andattaching hardware.

Fore ‘N Aft Leveler is a traveling stringline that mounts inboardof the screed end plate and bridges the screed extensions toreference both ahead and behind the screed.

ScreedsThe AP-650B is offered with a choice of two screeds: theExtend-A-Mat 8-16B screed or the Pavemaster 8B screed.Paving packages are available for both screeds in widths tomatch the paving capability of the tractor.

Extend-A-Mat B Screed OptionsPower Controls for Slope, Crown and Height include electricmotor-driven gearboxes that provide fingertip operation ofmain screed crown, extender slope and extender heightadjustments.

Screed Extensions are available is 305 mm (1') and 711 mm (2'4") widths. Heat is by convection from the main screed.Vibration is provided on the 711 mm (2' 4") extension.

Cutoff Shoe Package consists of one 305 mm (1') and one 610mm (2') cutoff shoe to reduce paving width in 76 mm (3")increments.

Bevel End Plates available to bevel mat edges for 38 mm(1.5"), 51 mm (2"), 64 mm (2.5"), and 76 mm (3") pavementthickness.

Berm Extensions available in right or left configurations.Lengths offered: 357 mm (14"), 508 mm (20"), and 660 mm(26"). All have 457 mm (18") screed plates. Slope is adjustablefrom 0 to 127 mm (5") high at outside edge. Wiring harness forextender control box supplied.

Pavemaster B Screed OptionsPower Crown includes an electric motor-driven gearbox thatprovides fingertip control of main screed crown.

Screed Extensions available in 152 mm (6"), 305 mm (1'), 610mm (2') widths with crown, and 914 mm (3') widths. Heat andvibration available on 610 mm (2') and 914 mm (3') extensions.

Hydraulic Strike-Offs are available to increase paving width to762 mm (2' 6") on either side of the screed. Power slopecontrol of the strike-off moldboard and power adjustment ofthe moldboard height is standard. Paving width can beincreased and additional 305 mm (1') with bolt-on strike offextensions.

Optional Equipment

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EngineFour-stroke cycle, four cylinder Caterpillar®

3054TA turbocharged and aftercooleddiesel engine.

Ratings at RPM kW hpGross power 2200 90 121Net power 2200 83 112

Ratings of Caterpillar machine enginesare based on standard air conditions of25°C (77°F) and 99 kPa (29.32") Hg drybarometer. Power is based on using 35°API gravity fuel having an LHV of42,780 kJ,kg (18,390 Btu/lb) when usedat 30°C (86°F) [ref. a fuel density of838.9 g/L (7.001 lb/U.S. gal)]. Netpower advertised is the power availableat the flywheel when the engine isequipped with fan, air cleaner, mufflerand alternator.

The following ratings apply at 2200RPM when tested under the specifiedstandard conditions for the specifiedstandard:

Net Power kW hp PsISO 9249 83 112 113ISO 3046 83 112 113SAE J1349 (JAN90) 82 111 112EEC80/1269 83 112 113DIN 6271/6272 85 114 116

Gross PowerISO 14396 90 121 122

DimensionsBore 100 mm 3.937"Stroke 127 mm 5"Displacement 4 L 243 cu. in.

SoundThe engine compartment is lined withnoise-suppression insulation to reduceambient sound levels.

SteeringSteering is full power via an automotive-type steering wheel at the operator’sstation. Electric-over-hydraulic dual pathdifferential steering assures precisemachine control. Steering commands areindependent of propel speed.

Three steering modes are selectable at theoperator's console. When in the pave ortravel mode, steering range is electricallyreduced to minimize abrupt steeringmovements. Minimum turning radius,measured at the inside track when in pavemode, is 914 mm (3'). When in maneuvermode, steering system is at full range,allowing the paver to pivot-turn bycounter-rotating the tracks.

SuspensionUndercarriage consists of four 241 mm(9.5") diameter track rollers, a special reartriple roller bogey, and a 304 mm (12")diameter dual return idler per side. Rollersare bogied in pairs and each pair isarticulated for optimum levelingcapability. Rollers ride on Caterpillar D3track rail. Track rails are sealed type andhave a split master link for quick trackremoval and installation. Tracks are fittedwith 127 mm (5") by 356 mm (14") rubberbonded track pads.

Track tension is provided by a parallel linkswing arm design that provides constanthydraulic pressure. Track tension ismaintained without manual adjustment.Recoil forces are controlled by check andrelief valves.

Drive SystemThe drive is via variable-displacementhydrostatic pumps and variable-displacement motors with single-speedplanetary track drives. Pumps areinfinitely variable with electric dualcontrols for steering and speed. Motorshave two displacement settings for twospeed ranges.

Forward speed ranges

Paving 0-67 mpm (220 fpm)

Travel 0-8 kmph (5 mph)

BrakesService braking system: Closed-loophydrostatic system provides dynamicbraking. Parking brake system: Spring-applied/hydraulically released brake ontrack drives. Parking brake actuated byhand control at the operator’s station orautomatically when engine is shut downand whenever power switch is in offmode. Brake systems meet SAErecommended practice J2118 Feb94.

A brake interlock system helps preventdriving through the secondary brake.

Fumes Evacuation SystemFumes Evacuation System helps removeasphalt fumes from the auger chamberarea. The system consists of shrouds inthe auger chamber area, hydraulic-drivenexhaust fan, ducts and exhaust stack tovent asphalt fumes away from theoperator and screed areas.

AP-650B specifications

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Hydraulic Oil FiltrationPropel pumps have 10-micron integralcharge loop filtration and 7-micronreservoir return filtration. The materialfeed system (feeders/augers) has 5-micron integral charge loop filtration.Vibrator pump has 125-mesh suctionstrainer on the inlet. The auxiliary pumphas a 100-mesh suction strainer on theinlet.

Operator’s StationA single operator’s station slides fromone side of paver to the other.Operator’s seat can swivel to the left orright 152 mm (6") to further improveoperator visibility. The operator’sstation slides 305 mm (12") beyondeither edge of the paver, enhancingvisibility to ground contact points andside clearances. Deluxe seat with armrests has heat-reflective cover.Station has a complete instrumentconsole and an adjustable, pivoting seatwith seat belt. All console wiring isprotected by an articulated vinylenclosure.

Operator’s ConsoleThe single lockable operator’s consolehas: steering wheel; decel pedal; enginethrottle fast/slow switch; augerraise/lower switch; hopper raise/lowerswitch; left and right feederauto/off/man switch; left and rightfeeder/auger ratio control; heat startbutton; horn button; propelforward/reverse lever;pave/travel/maneuver mode switch;maximum speed control dial; engineignition switch; parking brake switch;screed vibrator on/off switch; screed liftup/down switch; extender in/out switch;screed counterbalance on/off switch.

InstrumentationGauges are analog-type for easierreading and quicker interpretation.Instrumentation on the operator’sconsole includes: Tachometer/foot-per-minute meter with hourmeter; hydraulicoil filter condition indicator light;system warning lights for highhydraulic oil temperature, low hydraulicoil level, low engine oil pressure, andhigh coolant temperature; batterycharging light; engine temperaturegauge; fuel level gauge; engine oilpressure gauge; hydraulic oiltemperature gauge; propel system statuslight; and feeder system status light.

The operator is alerted by warninglights and a warning horn whenever thefollowing conditions exist: highhydraulic oil temperature; lowhydraulic oil level; low engine oilpressure; or high coolant temperature.

Electrical SystemThe 24-volt electrical system utilizestwo 12-volt batteries and a 52-ampalternator. The wiring is color codedand numbered for easy servicing. Allwiring is protected by vinyl coatednylon braiding for greater durability.All circuits tie to a main junction boxwith circuit breakers that can be reset.

FrameH-section mainframe construction withintegral tunnel cover. Frame fabricatedfrom heavy gauge steel plate. Tunnelcover is 9,5 mm (0.375") thick, thefeeder base is 15,8 mm (0.625") thickand the side plates are 15,8 mm(0.625") thick.

Feeders and AugersDual feeders and augers are controlledindependently through variable speeddrives. A material feed controllerprovides ratio control of augers andfeeders. Paddle sensors control thefeeders/augers to provide the exactvolume of material required. Ratioadjustment eliminates the need forfeeder gates. The system allows feedersto run full at lower speeds. Reducedcomponent wear, lower horsepowerrequired and less opportunity forsegregation can be expected.

Right and left feeder/auger operateindependently of each other. Feederdrive and drive chains are locatedoutside the mainframe for easyaccessibility.

Feeder flights are constructed of heavy-duty bushed roller chain with forgedsteel flight bars sliding overreplaceable, abrasion resistant drag panswith 360-440 Brinell hardness.

Long life auger system consists ofsegmented, 406 mm (16") diameter,cast Ni-Hard steel hemi-screw augers.Auger and hanger bearings have built-insteel shields for greater protection.Bearing lube points are remote mountedfor accessibility.

AP-650B specifications

11AP-650B specifications

DimensionsAP-650B with AP-650B with

Extend-A-Mat B Screed Pavemaster B ScreedA Length with push roller 6095 mm (20') 5613 mm (18' 5")

with truck hitch 6578 mm (21' 7") 6095 mm (20')B Operating width 3269 mm (10' 9") 3269 mm (10' 9")C Overall height 3079 mm (10' 1") 3079 mm (10' 1")D Transport width (hoppers raised) with end gates 2718 mm (8' 11") 2718 mm (8' 11")

Transport width (hoppers raised) without end gates 2494 mm (8' 2") 2494 mm (8' 2")E Transport height (muffler removed) 2623 mm (8' 7") 2623 mm (8' 7")F Track gauge 1837 (72") 1837 (72")

HopperPower hopper dumping, controlled fromcontrol console. Heavy-duty flashingprevents material spillage.

Capacity5 cu m (177 cu ft)

Truck Entry Width3182 mm (10' 5")

Service Refill CapacitiesLiters Gallons

Fuel Tank 227 60

Hydraulic Oil Tank 189 50

Cooling System 31,5 8.3

Weights (approximate)

With Extend-A-Mat 8-16B Screed

16 280 kg (35,950 lb)

With Pavemaster 8B Screed

14 885 kg (32,765 lb)

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Caterpillar follows a policy of continual product improvement. For this reason, some material and specifications could change without notice.

QEHQ9427 (10-97)

© 1997 Caterpillar