®®

EngineEngine Model Cat® 3176C ATAAC EUIGross Power 223.7 kW 300 hpFlywheel Power 209 kW 280 hp

WeightsRated Payload 23.6 tonnes 26 tons

Body CapacitiesHeaped SAE 2:1 14.3 m3 18.8 yd3

725Articulated Truck

2

725 Articulated TruckThe 725 Caterpillar® Articulated Truck Is a World-Leading Earthmoving Solution.

The 725 offers proven reliability anddurability, high performance, low fuelconsumption, operator comfort and lowoperating costs.

Complete 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 machineconfiguration to eventual replacement.pg. 10

Operator Comfort

Large center-mounted cab, oscillatingfront axle, air suspension seat and largestorage space provide exceptionaloperator comfort. pg. 6

Performance and Productivity –Suspension and Traction Control

Cross-axle differential locking systemprovides full driveline locking formaximum performance in adverseconditions. Three-point front suspensionprovides a smooth ride, allowing theoperator to travel at speed over roughterrain. pg. 5

Performance and Productivity –Power Train

High power Cat 3176C ATAACelectronic engine, electronicallycontrolled transmission, and a fast acting,powerful retarder deliver the performanceneeded to get the job done. pg. 4

3

Serviceability

Long service intervals and easymaintenance result in better machineavailability, lower owning andoperating costs. pg. 9

Durability and Reliability

The 725 has built-in durability andreliability. Cat purpose-built, articulatedtruck drivetrain components, frontframe and hitch assure top performancein the toughest applications. pg. 8

Ease of Operation

Ergonomically designed wrap-arounddash, tilt and telescopic steering wheel,easy-to-reach controls and outstandingall-around viewing promote fast,confident machine operation fortop productivity. pg. 7

3176C Electronic Engine. The electronicversion of this proven engine delivershigh power, durability and completesystem integration of the engine andtransmission for maximum efficiency.

High Torque Rise. Provides unequalledlugging force during acceleration, onsteep grades and in tough underfootconditions.

Turbocharged and ATAAC. Air-to-airaftercooling provides excellent fueleconomy by packing cool, dense airinto cylinders for complete combustionof fuel and lower emissions.

Electronic Control Module (ECM).Advanced Diesel Engine Management III(ADEM III) provides improvedemissions, performance, advancedtroubleshooting and diagnosticcapabilities.

Fuel Efficiency. The electronicallycontrolled, computer-actuated unitinjection fuel system has high injectionpressure for complete fuel combustion,greater fuel efficiency and reducedemissions.

Engine Construction. Caterpillardesigned one-piece cast iron blockprovides strength and maximumdurability. Two-piece articulatedpistons with forged steel crownswithstand higher cylinder pressure.

Electronic Transmission. The six-speedelectronically controlled transmission isdesigned specifically for the articulatedtruck and its applications.

Controlled Throttle Shifting (CTS).CTS significantly reduces power trainstress and clutch wear by controllingengine speed, torque converter lock upand transmission clutch engagements.

Electronic Clutch Pressure Control.ECPC technology works with CTSto manage shift torque and provideexceptional shift smoothness.

Retarder. Integral retarder with a highpower density design. Due to its compactsize, the unit quickly fills with oil,providing more retarding power withfast response times.

4

Performance and Productivity – Power TrainIntegrated Power Train – More Power, Greater Performance and Lower Fuel Consumption.

Front Suspension. The three-point frontsuspension oscillates ±6° to providea smooth ride, allowing the 725 totravel at speed over rough terrain andsoftening impact loads on structuresand components.

Rear Suspension. The rear suspensionfeatures a mechanical walking beamgeometry that extends component lifeand provides a stable ride for excellentload retention.

Traction Control. Inter-axle differentiallock and cross-axle differential locksprovide 100% driveline locking.All differentials are hydraulicallyactuated, oil-immersed, multi-plateclutch type that can be engaged anddisengaged on-the-go for maximumversatility.

Inter-axle Differential Lock. Locks allthree axles together for excellent tractionin poor underfoot conditions. It isoperated by a switch incorporatedinto the footrest.

Cross-axle Differential Locks. Providesfull driveline locking – all three axlesand all six wheels for maximumperformance in the most adverseconditions. Acts in unison with theinter-axle differential lock when thefootswitch is actuated and is selectedvia the dash-mounted switch.

Service Brakes. The 725 features adual-circuit, two-axle braking system.Full-power hydraulic system actuatesself-cleaning caliper disc brakes withindependent front and rear circuitsand accumulators.

Parking Brake. The parking brake islocated on the center axle in an elevatedposition out of the dirt and is designedto deliver higher heat capacity andabuse resistance.

Fast Hoist Cycle Times. Fast body raiseand lower times mean less time spentin the dump area.

Load-Carrying Capacity. Large targetarea provides high-load carryingcapacity. Its diverging flow designgives clean load ejection, whichmaximizes production and avoidswaste of material carryback.

5

Performance and Productivity – Suspension and Traction ControlProductivity in All Conditions – All Terrain All the Time.

Ride Comfort. The three-point frontsuspension with its oscillating axle andlow-pressure ride struts, combined withthe center-mounted cab, offer unrivaledlevels of ride comfort for the operator inall driving conditions. Operators remaincomfortable and productive throughoutthe day.

Spacious Two-Person Cab. The 725features a large two-person cab, offeringa comfortable working space for boththe operator and trainer or trainee.All 700 Family articulated trucksuse the same spacious cab design.

Air Suspension Seat. Enhances operatorcomfort with a dual-sided support reclinerand thicker cushions. It is fully adjustableto provide an optimal driving position.

Trainer Seat. Full-size trainer seat featuresa fully padded seat with a backrest anda wide, retractable seatbelt for a secureand comfortable ride.

Storage Space. Plenty of storage spaceto create a secure and unclutteredworking environment.

Heating/Ventilation/Air Conditioning.Twelve vents provide air distributionto keep the operator comfortable andto give rapid defrosting of all windows.Heating and air conditioning arestandard and the recirculation filteris positioned for easy servicing.

Sound Levels. Cab mounts are designedto reduce noise and vibration in the cab.All connections to the cab are resilientlymounted and the cab itself makesextensive use of sound absorbing andbarrier materials to keep sound levels low.

Steering Column. Offers telescopingand tilting features to provide acomfortable driving position.

Suspended Pedals. Easy to reach withplenty of leg and foot room. They alsomake for easier cleaning of the cab floor.

6

Operator ComfortThe Operator’s Office – High Productivity from a Comfortable, Motivated Operator.

Ergonomic Layout. The controlsand layout of the cab are designed tomake it as easy to operate as your car.Quick and easy to read and simple tooperate, the controls on the 725 allowthe operator to concentrate on production.

Dash. The wrap-around dash puts allcontrols within easy reach of the operator.It provides an automotive feel with theindustrial strength you would expectfrom Caterpillar.

Viewing Area. The low sloping hoodand placement of the cooling packagebehind the cab give the operator excellentall-around visibility. The large glassarea and central operator positionmaximize visibility.

Differential Lock Controls. The switchfor the inter-axle differential lock hasbeen positioned in the operator’s footrestfor ease of operation. A dash-mountedswitch is all that is required to selectfull driveline lock-up. Disengaging thefoot switch disengages all differentiallocks immediately.

Transmission and Hoist Levers.The hoist lever provides easy, comfortableoperation. The transmission lever offersexcellent comfort, along with the controlfor top gear limit, transmission holdand neutral lock.

Safe Start Mode (Neutral Start).The transmission lever must be inneutral and the hoist lever must bein hold before the engine will start.

Body-Up Protection. Preventstransmission upshift from first gear ifthe hoist lever is not in the float position.

Suspended Pedals. Easy to operate andreach with plenty of leg and foot room.Suspended pedals also make it easierto clean the cab floor by keeping thepedals out of the dirt.

Cat 2S Machine Monitoring System.Provides an improved method ofmonitoring critical machine functionsand is easier to apply.

7

Ease of OperationDesigned for Simple, Easy Operation, the 725 Allows the Operator to Focus on Production.

Front Frame. The front frame designfeatures a large box-section, and wide,stiff frame beams to handle torque loads.The divergent frame design decreasesstress in the hitch area and optimizessuspension geometry. The frame hasbeen designed to make maximum use ofrobotic welding for increased durability.

Rear Frame. Twin-box constructionminimizes stress concentration andprovides low weight with longservice life.

Castings. The front and rear framesmake extensive use of heavy-duty steelcastings to handle stress concentrations.

Articulating/Oscillating Hitch.The articulating hitch provides thetruck with steering articulation andthe oscillation ensures the truckmaintains all-wheel ground contactin rough terrain.

Hitch Construction. Two-piece hitchconstruction features a strong, durablecast steel head bolted to a hard wearingforged steel tube. The hitch tube haslarge, hardened bearing areas and ahardened thrust face for reducedmaintenance and longer life.

Cat Power Train Components. The 725features purpose-designed earthmovingcomponents from the engine throughto the final drives. Proven in articulatedtrucks and other Cat equipment, theserugged building blocks ensure long lifeand reliability.

8

Durability and ReliabilityHigh Availability Leads to High Productivity.

Long Service Intervals. Long engine oilchange and hydraulic oil change intervalslower maintenance costs and downtime.Wheel-bearing adjustment is completelyeliminated.

Test and Lube Points. Test points aregrouped together behind the cab andaccessible from the ground. Lube pointsare grouped at the rear of the frontframe and the front of the rear frame.Autolube is optional.

Service Points. Engine and transmissiondipstick and fill caps, air and fuel filtersand the fuel priming pump are allmounted on the left side of the engineunder the hood. Coolant level indicatorand fill caps are outside the cab.

Service Access. The cab tilts to the sideto provide easy access underneath, whichsimplifies servicing of the transmission,drive shafts and hydraulic pumps.Machine electrical and hydraulicinterfaces are located on the right sideof the cab, behind a removable cabbody panel for easy access.

Radiator. The radiator package islocated behind the cab, which providesprotection from frontal impacts andoffers access to both inlet and outletsides of the radiator.

Extended Life Coolant. Extends thechange interval and improves water pumplife by reducing aluminum corrosion.

Hood. The hood is raised and loweredelectrically requiring minimal operatoreffort when servicing.

Electrical Service Center. Locatedinside the cab, this provides a powerport, diagnostic connector and theCat data link connector.

Cat Data Link Connector. Provides aconnection point for a laptop computerrunning Electronic Technician (ET)software.

Truck Transport. The suspensionsystem eliminates the need to lower thesuspension when transporting the truck,reducing maintenance and downtime.

9

ServiceabilityMore Time on Production – Less Time and Less Money Spent on Servicing.

Selection. Make detailed comparisonsof the machines you are consideringbefore you buy. What are the jobrequirements, machine attachments andoperating hours? What is your need formachine availability and do you needor have the proper loading tool match?Your Cat dealer can help.

Custom Products. The 725 iscompatible with a wide range ofCaterpillar and auxiliary equipmentmanufacturers’ specialized products.For more information, contact yourlocal Cat dealer.

Purchase. Look past initial price, lookat the value the 725 offers. Consider theresale value, compare productivity andday-to-day operating costs and fuelconsumption. Consult your local Catdealer for financing options.

Operation. For the best operatingtechniques to increase productivityand your profit, turn to your Cat dealerfor the latest training literature andtrained staff.

Maintenance. Repair option programsguarantee the cost of repairs up front.Diagnostic programs such as S•O•SSM

and Technical Analysis help you avoidunscheduled repairs.

Replacement. Repair or rebuild?Cat Articulated Trucks are designedfor a longer life with rebuildablecomponents. Your Cat dealer can helpyou evaluate the cost involved so youcan make the right choice.

Product Support. The 725 offers easymaintenance with combined servicepoints and extended service intervalsto keep the machine running longer.Your local Cat dealership offersunsurpassed worldwide parts support,trained technicians and customersupport agreements.

Warranty. Your local Cat dealer is thereto support and protect you. Extendedwarranty options are also available.

CAT.com. For more complete informationon Cat products, dealer services andindustry solutions, visit us on theWeb at www.CAT.com.

10

Complete Customer SupportCat Dealer Services Help You Operate Longer with Lower Costs.

11725 Articulated Truck specifications

Operating Weights

Front Axle – Empty 12 900 kg 28,445 lbCenter Axle – Empty 5210 kg 11,488 lbRear Axle – Empty 4620 kg 10,187 lbTotal – Empty 22 730 kg 50,120 lb

Front Axle – Rated Load 1500 kg 3,307 lbCenter Axle – Rated Load 10 750 kg 23,704 lbRear Axle – Rated Load 11 340 kg 25,005 lbTotal – Rated Load 23 590 kg 52,016 lb

Front Axle – Loaded 14 400 kg 31,752 lbCenter Axle – Loaded 15 960 kg 35,192 lbRear Axle – Loaded 15 960 kg 35,192 lbTotal – Loaded 46 320 kg 102,136 lb

Body Plate Thickness

Front 8 mm 0.31 inScow 14 mm 0.55 inSide 12 mm 0.47 inBase 14 mm 0.55 in

Service Refill Capacities

Fuel Tank 360 L 95 galCooling System 85 L 22.5 galHydraulic System 102 L 26.7 galEngine Crankcase 31 L 8.2 galTransmission 36 L 9.4 galFinal Drives/Differential 132 L 34.6 galOutput Transfer Gear Box 18 L 4.8 gal

Body Hoist

Raise time 10 SecondsLower time 7 SecondsFlow Rate 290 L/min 76 gal/min

Standards

Brakes SAE J/ISO 3450:1998Cab/FOPS SAE J231 JAN81 and

ISO 3449:1992 Level IICab/ROPS SAE J1040 May 1994

and ISO 3471:1994

Engine

Engine Model Cat 3176C ATAAC EUIGross Power 223.7 kW 300 hpFlywheel Power 209 kW 280 hpISO 9249 209 kW 280 hpEEC 80/1269 209 kW 280 hpSAE J1349 207 kW 277 hpBore 125 mm 4.9 inStroke 140 mm 5.5 inDisplacement 10.3 L 629 in3

• The 725 meets Tier 2/EU Stage II emission specificationsfor the U.S. and Europe through 2005.

• No engine derating required below 4572 m (15,000 ft).

Weights

Rated Payload 23.6 tonnes 26 tons

Body Capacities

Heaped SAE 2:1 14.3 m3 18.8 yd3

Struck 11.1 m3 14.5 yd3

Heaped SAE 1:1 17.5 m3 22.9 yd3

Transmission

Forward 1 7.1 kph 4.4 mphForward 2 13.4 kph 8.4 mphForward 3 20.4 kph 12.7 mphForward 4 31.2 kph 19.5 mphForward 5 43.5 kph 27.2 mphForward 6 51.3 kph 32.1 mphReverse 1 7.9 kph 4.9 mph

Sound Levels

Interior Cab 76 dB(A)

• The operator sound exposure Leq (equivalent sound pressurelevel) measured according to the work cycle proceduresspecified in ANSI/SAE J1166 OCT 98 is 76 dB(A), for the caboffered by Caterpillar, when properly installed and maintainedand tested with the doors and windows closed.

• Hearing protection may be needed when operating with anopen operator station and cab (when not properly maintainedor doors/windows open) for extended periods or in noisyenvironments.

12 725 Articulated Truck specifications

Turning CircleDimensions are for machines equippedwith 23.5R25 tires.

Turning dimensions

Steer angle — left/right 45°SAE turning radius 7255 mm 286 inClearing radius 7590 mm 299 inInside radius 3714 mm 146 inAisle width 4964 mm 195 in

Steering

Lock to Lock 4 secondsFlow Rate 153 L/min 40 gal/min

Dimensions

Optimal Loader/Truck Pass Matching

Hydraulic Excavators 345B Series II 330C 325CPasses 3-4 4-5 5-6

Wheel Loaders 966G 962G 950GPasses 3-4 3-4 4

An optimum system match gives you a major productivity advantage. The 725 isan excellent match for the Cat 345B Series II, 330C, and 325C Hydraulic Excavators;and Cat 966G, 962G and 950G Wheel Loaders. This results in increased productionand lower system costs per unit of volume moved.

70°

2750 mm 9'

6425 mm 21.1'

1700 mm 5.6'

1680 mm 5.5'

3819 mm 12.5'

495 mm 1.6'

2721 mm 8.9'

9920 mm 32.5'

5426 mm 17.8'

Inside of Body

5778 mm 19'

3436 mm 11.25'

2881 mm 9.4'

2279 mm 7.5'

2774 mm 9.1'

3138 mm* 10.3'

543 mm 1.8'

* if equipped with a scissor tailgate

13725 Articulated Truck specifications

Gradeability/Speed/Rimpull

To determine performance, read from GrossWeight down to % Total Resistance.Total Resistance equals actual % gradeplus 1% for each 10 kg/metric ton(20 lb/ton) of Rolling Resistance. From thispoint, read horizontally to the curve with thehighest attainable speed range. Then, godown to Maximum Speed. Usable Rimpulldepends on traction available.

Retarding Performance

To determine performance, read from GrossWeight down to % Effective Grade.Effective Grade equals actual % favorablegrade plus 1% for each 10 kg/metric ton (20 lb/ton) of Rolling Resistance. From thispoint, read horizontally to the curve with thehighest attainable speed range. Then, godown to Maximum Speed. Retarding effecton these curves represents full application ofthe retarder.

GROSS WEIGHT

SPEED

RIM

PU

LL

TO

TA

L R

ES

IST

AN

CE

%(G

RA

DE

PL

US

RO

LL

ING

RE

SIS

TA

NC

E)

GROSS WEIGHT

SPEED

% E

FF

EC

TIV

E G

RA

DE

(F

AV

OR

AB

LE

)

1 — 1st Gear

2 — 2nd Gear

3 — 3rd Gear

E — Empty 22 730 kg (50,120 lb)

L — Loaded 46 320 kg (102,136 lb)

4 — 4th Gear

5 — 5th Gear

6 — 6th Gear

1 — 1st Gear

2 — 2nd Gear

3 — 3rd Gear

E — Empty 22 730 kg (50,120 lb)

L — Loaded 46 320 kg (102,136 lb)

4 — 4th Gear

5 — 5th Gear

6 — 6th Gear

1

2

34

5 6

E L

5 10 15 20 25 30 35 40

0 10 20 30 40 50 60 km/h

mph

40%

35%

30%

25%

20%

15%

10%

5%

lb x 1000

kg x 1000

200

0

120100806040

10 20 30 40 50

0 5 10 15 20 25 30 35 40

70

50

30

20

10

5

3

2

1

0.5

0 5 10 15 20 25 30 35 40 45 50 55 60

5040

30

20

10

5

3

2

1

0.50.3

-40%-30%-25%-20%-15%-12%-10%-8%-6%-5%-4%-3%

-2%

40

km/h

mph

1

2

3

45

6

E L100

lb x

100

0

kg x

100

0

lb x 1000

kg x 1000

24020016012010080706050

15 20 25 30 40 50 60 70 80

14 725 Articulated Truck specifications

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

Seat, fully adjustable, air suspensionSeat, padded companion/trainerSeat belts, two retractableSecondary steeringS•O•SSM sampling valvesSpill guard, front, integral part of fabricated bodyStandard differentials with clutched cross-axle diff locks

for all axlesStarting receptacle, electric, remoteStorage: two cup holders, thermos receptacle under seat

storage, door pocket, behind seat storage, coat hook Sun visorTires, six 23.5R25, radialTow pins, front and rearVandalism Protection: lockable caps for fuel tank and

hydraulic oil tankWindows opening side, tintedWindshield wiper and washer, intermittent (front)Windshield wiper and washer, intermittent (rear)

Air conditioning with R134A refrigerantAir vents, adjustableBack up alarmBody, adapted for exhaust heatElectrical system: 24-volt, 2.5A 24- to 12-volt converterGlass windows, laminated and tinted (front), toughened

and tinted (rear)Guards: rear window and radiator, crankcase and axleHeadlights, fourHeater and defroster with three speed fanHorn, electricLights: cab interior, front, side, rear, two reversing/working

lights, two stop/tail lights, front and rear direction indicatorsMirrors, left and rightMud flaps, body mountedRadio readyRetarderROPS/FOPS cab, with full instrumentation, including:

- Instrument cluster display module- Indicator Lamps: Left Turn. Secondary Steering.

Primary Steering Loss. Front and Rear Brake Temp(735/740 and 740 Ejector only). Brake Oil Pressure.Action Lamp. Transmission Fault. Park Brake.Charging System Status. Differential Lock.Body Not in Float. Right Turn. Spare.High Beam. Transmission Hold. MachineFilter Warning. Retarder. Retarder UpShift Warning.

- Gauges: engine oil pressure, engine coolant temperature,tachometer, torque converter oil temperature, fuel level,fuel tank level gauge

- Indicator Lights: direction, hazard, headlights, high beamonly, cross axle differential lock-up, parking brake,transmission hold indicator

- Meters: service hour meter, speedometer, tachometer

15725 Articulated Truck specifications

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

Field-Installed Attachments – DealerNOTE: The following attachments can be ordered fromParts Distribution.- 173-6530 Radio 12V AM/FM- 173-6532 Radio 12V AM/FM Deluxe- 214-7318 Tool Kit and Box- 253-6086 Heavy Duty Brakes

Autolube installation for automatic greasing of bearingsBody connection for exhaust heatBody linersCold start attachmentEther start canisterFast fuel fillHeated rearview mirrorsHeavy duty brakesTailgate:

- Scissor-typeTires: optional tire sizes and tread patterns available

R

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

© 2004 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.

AEHQ5394-03 (6-04)

Replaces AEHQ5394-02

725 Articulated Truck