®®

Cat ® C18 ACERT™Base Power (all gears) – Net 397 kW 533 hp

MoldboardWidth 7.3 m 24 ft

Gross Vehicle Weight – BaseTotal 62 457 kg 137,694 lbFront Axle 18 862 kg 41,584 lbRear Axle 43 595 kg 96,110 lb

24MMotor Grader

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24M Motor GraderThe 24M delivers multiple technological breakthroughs to give you the best returnon your investment.

The 24M motor grader represents arevolution in operational efficiency andoverall productivity, setting a new standardand building on a legacy of high quality youcan trust.

Safety

Caterpillar has been and continues to beproactive in developing machines thatmeet or exceed safety standards. pg. 14

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Integrated Electronic Solutions

Full systems integration with advancedelectronics including Cat® Messenger,AccuGrade™ blade control system andCat® ET, create a “Smart Machine” thatoptimizes performance and availability.pg. 13

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Engine

The Cat® C18 engine with ACERT™Technology delivers maximum powerand efficiency while reducing theenvironmental impact. pg. 7

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Steering and Implement Controls

Two joysticks offer precise controland unparalleled ease of operation.This advanced technology makes the24M the most operator-friendly motorgrader in the world. pg. 6

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Operator Station

A technologically advanced cab,featuring joystick controls, providesunmatched comfort and visibility. pg. 4

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✔ New Feature

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Serviceability and Customer Support

Fast component replacement andminimum downtime are possiblewith Caterpillar’s exceptional partsavailability and dealers’ advancedrebuild and repair capabilities. pg. 16

Hydraulics

The Electro-Hydraulic load-sensingsystem provides the foundation foradvanced machine controls, enablingsuperior controllability, precise andpredictable hydraulic movements, withthe reliability customers expect fromCaterpillar. pg. 12

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Power Train

An electronically controlled power shifttransmission assures smooth shiftingand maximum power to the ground.A modular rear axle and hydraulicbrakes simplify serviceability andreduce operating costs. pg. 10

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Structures, Drawbar, Circle andMoldboard

The rugged construction of the 24Mframe and DCM provides durabilityand maximum productivity. pg. 8

Advanced Joystick Controls.Two electro-hydraulic joysticks reducehand and wrist movement as much as78% compared to conventional levercontrols for greatly enhanced operatorefficiency. The intuitive pattern is easyto learn, and provides the preciseimplement control you expectfrom Caterpillar.

Ripper Control. The ripper controlis ergonomically positioned to allowsimple, comfortable operation.

Visibility. The exceptional forward viewis made possible by a unique raised cabdesign and a one-piece front window,improving operator confidence andproductivity. The large side windowsoffer a clear view of the moldboard heeland tandem tires. A wide rear windowprovides good visibility behind themachine. Glare reducing paint on thefront frame, lift arms and rear enclosurehelp reduce glare, resulting in saferoperation at night.

In-Dash Instrument Cluster.The instrument panel, with easy-to-read, high-visibility gauges and warninglamps, keeps the operator aware ofcritical system information.

Controls and Switches. Reliable, long-life rocker switches are located on theright side cab post and front instrumentcluster, within easy reach for the operator.Controls and switches are backlit forincreased safety during night timeoperations.

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The 24M features a revolutionary cab design that provides unmatched comfort and easeof use, making the operator more confident and productive.

Operator Station

Cat Messenger. Cat Messengerprovides real-time machine performanceand diagnostic data. The operator canquickly view critical performanceand operating information, in multiplelanguages, helping to maximize thelife and productivity of the machine.

Low Interior Sound and VibrationLevels. Isolation mounts for the cab,engine and transmission significantlyreduce sound and vibration. The quietinterior with low vibration levels providea comfortable work environment.

Cat Comfort Series Seat. The CatComfort Series air suspension seat hasan ergonomic high-back design, withextra thick contoured cushions andinfinitely adjustable lumbar support thatevenly distributes the operator’s weight.Multiple seat controls and armrests areeasy to adjust for optimal support andcomfort all day.

Comfort and Convenience. Caterpillarhas built the most comfortable cab inthe industry by replacing the controllevers and steering wheel with twojoystick controls. Extra leg and footroom create a spacious, open cab.

Multiple adjustment capabilities for thearm rest, wrist rest and joystick podshelp keep the operator comfortablethroughout a long shift.

Modular HVAC System. The standardmodular heating, ventilation and airconditioning system is fully integratedinto the design of the cab. The modulardesign allows for easy replacementor repair with minimum downtime.Intelligent placement of vents providesconsistent climate control and clearwindows for every condition. The high-capacity system dehumidifies air andpressurizes the cab, circulating freshair while sealing out dust.

Additional Cab Features. Additional cabfeatures include cup holder, lighter,ashtray, coat hook, storage area, nighttime light and power port. Optional rearview camera, 25-amp power converterand satellite radio are also available.

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Ease of Operation. The revolutionaryjoystick controls make the 24M easierto operate without sacrificing control.The intuitive joystick control patternallows both new and experiencedoperators to become productive quickly.

Logical grouping of hydraulic functionsin the joysticks allow any operator toeasily control several functions at thesame time. This allows the operatorto be more productive and remaincomfortable throughout the work shift.

Intuitive Steering Control. The 24Mintroduces a breakthrough in joysticksteering control. This technology createsa direct relationship between the leanangle of the joystick and the turningangle of the steer tires.

A brake tensioning system holds thejoystick in position until the operatormoves it. In addition, the steeringcontrol automatically reduces steeringsensitivity at higher ground speeds forcomfortable and predictable control.

Electronic Throttle Control. ElectronicThrottle Control (ETC) provides theoperator with easy, precise, and consistentthrottle operation. An automatic andmanual mode on a single switch offersflexibility for different applicationsand operator preference.

Ripper Control Pod. An infinitelyvariable roller switch controls the rearripper for easy and comfortable control.

Articulation Return-to-Center.This exclusive feature automaticallyreturns the machine to a straight frameposition from any articulation anglewith the touch of a single button.Return-to-Center helps improveproductivity and safety by allowingthe operator to focus on controllingthe moldboard.

Left Joystick Functions. The left joystickprimarily controls the machine directionand speed.

1 – Steering: Lean joystick left and right

2 – Articulation: Twist joystick leftand right

3 – Articulation Return to Center:Yellow thumb button

4 – Wheel Lean: Two black thumbbuttons

5 – Direction: Index trigger shiftstransmission to forward, neutralor reverse

6 – Gear Selection: Two yellow thumbbuttons upshift and downshift

7 – Left moldboard lift cylinder:Push joystick to lower, pull joystickto raise

7 – • Left moldboard lift cylinder float:Pushing joystick through detentengages float

Right Joystick Functions. The rightjoystick primarily controls the Drawbar,Circle and Moldboard functions.

1 – Right moldboard lift cylinder:Push joystick to lower, pull joystickto raise

1 – • Right moldboard lift cylinderfloat: Pushing joystick throughdetent engages float

2 – Moldboard slide: Lean joystick leftand right

3 – Circle turn: Twist joystick leftand right

4 – Moldboard tip: Thumb switch foreand aft

5 – Drawbar center shift: Thumb switchleft and right

6 – Electronic Throttle Control:Top trigger button is resume anddecrement

7 – Differential Lock/Unlock: Bottomtrigger button

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Steering and Implement ControlsThe 24M sets the new standard for motor grader operational efficiency.

ACERT™ Technology. ACERT™Technology allows Cat engines to supplymore power per unit of displacementwithout causing premature wear.This breakthrough technology reducesemissions during the combustion processby using advanced technology in theair and fuel systems, in conjunctionwith integrated electronics. ACERTTechnology enhances overall engineperformance while dramaticallyreducing exhaust emissions.

Fuel Delivery. The C18 engine withACERT Technology uses multipleinjection fuel delivery to preciselyshape the combustion cycle. Severalsmall ignitions lower combustionchamber temperatures, generate feweremissions and optimize fuel combustion.Bottom line: more work output foryour fuel cost.

Superior Lugging Performance.The Cat C18 engine meets specificperformance requirements for 24Mapplications. Its superior torque andlugging capability can pull throughsudden, short-term increases in loads,maintaining consistent, desirablegrading speeds to get the work donefaster without downshifting.

Hydraulic Demand Fan. The hydraulicdemand fan automatically adjustscooling fan speed according to enginecooling requirements. This systemreduces demands on the engine, puttingmore horsepower to the ground andimproving fuel efficiency.

Exhaust Emissions Compliant.The Cat C18 with ACERT Technologymeets or exceeds all U.S. EPA Tier 3and European Union Stage IIIaemissions control standards.

Compression Brake. The optionalthree phase compression brake enableshigher travel speeds downhill, whilereducing wear on brake components.This improves overall productivityand lowers maintenance costs.

Ether Starting Aid. This standard featurehelps cold-weather startups in extremetemperatures. The system monitors enginecoolant temperature to prevent etherfrom being injected into a hot engine.

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EngineThe 24M utilizes ACERT™ Technology to deliver maximum power and efficiency whilereducing the environmental impact.

Front Frame Structure. Continuous topand bottom plate construction providesconsistency and strength. The flangedbox section design removes welds fromhigh stress areas, improving reliabilityand durability.

Rear Frame Structure. Two steel platesrunning the full length of the rear frameare integrated with the box section hitch.This helps resist torsion loads and ensurestructural durability. The integratedsteel tube unifies the rear frame andsupports the engine, while helping theframe withstand heavy-duty applications.

Articulation Hitch. A large taperedroller bearing at the lower and upperpivot carries loads evenly and smoothly.These joints are sealed to preventcontamination in this critical area.A mechanical locking pin prevents framearticulation to ensure safety whenservicing or transporting the machine.

Push Plate/Counterweight. A frontmounted push plate/counterweightcan be added on the 24M.

Replaceable Wear Inserts. Tough,durable wear inserts reduce rotationalfriction for maximum circle torque andlonger component life. They are locatedbetween the drawbar and circle, andbetween the support shoes and circle.High load-resistant brass wearstripsare placed between the blade mountinggroup and moldboard. This sacrificialwear system can be replaced easilyand helps keep components tightfor fine grading.

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Rugged structures and DCM design deliver maximum durability and productivity.

Structures, Drawbar, Circle and Moldboard

Adjustable Rear Circle Drive.An adjustable rear circle drive makesserviceability easier and faster, and alsoreduces component wear by keepingcomponents tight.

Drawbar Construction. The A-framedrawbar features a box-section designfor high strength and optimum durability.

Circle Construction. A one piece forgedsteel circle is built to stand up to highstress loads and provide structuraldurability. Six bolt-on tooth segmentscan be individually replaced and servicedfor reduced downtime and cost.

Yoke Plate. Full-length yoke plategives strength, support and protectionto the circle.

Aggressive Blade Angle. With a longwheelbase the operator can obtainaggressive moldboard angles, so materialrolls more freely along the length of theblade. This is particularly helpful whenhandling very dry materials or cohesivesoils. Better material control gets thejob done faster, requires less powerand saves fuel.

Moldboard. The optimal curvature andlarge throat clearance help move materialquickly and efficiently. Heat-treatedmoldboard rails, hardened cutting edgesand end bits, and large diameter boltsassure reliability and longer service life.

Ripper. The 24M standard ripperis made to penetrate tough materialfast and rip thoroughly for easiermaterial movement with the moldboard.The ripper includes three shanks withthe ability to add four more if needed.

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Smooth Shifting Transmission.The 24M combines several keyinnovations to ensure smooth, powerfulshifts throughout the gear range.

Electronically Controlled Shifting.The full Electronic Clutch PressureControl (ECPC) system smooths shiftingbetween all gears and directional changes.This provides outstanding control andalso extends the life of the transmissionby reducing stress on gears.

Lockup Clutch Torque Converter.Permits the machine to operate in directdrive for more efficient operation athigher torque converter output speeds.

Engine Over-Speed Protection.Helps protect the transmission andextend component life by preventingdownshifting until a safe travel speedhas been established.

Planetary Transmission. Balancedplanetary transmission with largediameter oil-cooled clutch packsprovides superior load distributionand heat dissipation, resulting inlonger transmission life.

Programmable Autoshift. The operatorcan easily customize various shiftparameters through Cat Messengerto match the specific applicationrequirement. This standard featureautomatically shifts the transmissionat optimal points so the operator canfocus on the work, improving safety,productivity and ease of operation.

Modular Rear Axle. The 24Mincorporates a bolt-on modular rearaxle design, which offers easy accessto differential components, improvesserviceability and contaminationcontrol, and lowers operating costs.

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Integrated, electronically controlled systems, deliver smooth reliable performancewith reduced operating costs.

Power Train

Front Axle. The Cat sealed spindle keepsthe bearings free from contaminantsand lubricated in a light-weight oil (1).This durable, low-maintenance designreduces your owning and operatingcosts. Two tapered roller bearings (2)support the wheel spindle. The Cat“Live Spindle” design places the largertapered roller bearing outboard wherethe load is greater, extending bearing life.

Gear Selection. Six forward andthree reverse gears give the operator awide operating range. The specificallydesigned range of gears ensuresmaximum productivity in all miningapplications.

Hydraulic Brakes. The oil bathed, multi-disc service brakes are hydraulicallyactuated, providing smooth predictablebraking and lower operating costs.With brakes located at each tandemwheel, the 24M offers large total brakesurface area, delivering dependablestopping power and longer brake life.

Parking Brake. The spring-applied,hydraulically released multi-discparking brake is a sealed, oil-cooleddesign extending component life andreducing the need for service.

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Advanced Electro-Hydraulic System.The 24M incorporates a state-of-the-artelectro-hydraulic system. This technologyis the foundation for revolutionarychanges of the machine and implementcontrols. Advanced joystick controlsprovide unmatched controllabilitywith precise and predictable hydraulicmovements, and the reliability youexpect from Caterpillar.

Load Sensing Hydraulics (PPPC).The time proven load-sensing systemand the advanced Proportional PriorityPressure-Compensating (PPPC, or“triple-PC”) electro-hydraulic valveson the 24M are designed to providesuperior implement control and enhancedmachine performance in all applications.Continuous matching of hydraulic flowand pressure to power demands createsless heat and reduces power consumption.

Consistent and Predictable Movement.PPPC valves have different flow ratesfor the head and rod ends of the cylinder.This ensures consistent extension andretraction speeds for each cylinder,and gives the operator a consistentand predictable response every timean implement control is moved.

Blade Float. Blade float is built into theblade lift control valves. The blade floatfeature allows the blade to move freelyunder its own weight. By floating bothcylinders, the blade can follow thecontours of the haul roads. Floating onlyone cylinder permits the toe of the bladeto follow a hard surface while theoperator controls the slope with theother lift cylinder.

Variable Float. The optional variablefloat feature lets the operator select theamount of down force the blade has whenit is in float. This allows the operatorto easily follow the contour of the haulroad when removing only the loosematerial, increasing productivity andcutting edge life.

Balanced Flow. Hydraulic flow isproportioned to ensure all implementsoperate simultaneously with little effecton the engine or implement speeds.If demand exceeds pump capacity, allcylinder velocities are reduced by thesame ratio. The result is improvedproductivity in all applications.

Cat® XT™ Hose. Cat hose technologyallows high pressures for maximumpower and reduced downtime.Intelligent routing minimizes exposureto damage. Hose clips prevent hoserubbing and excessive vibration forlower owning and operating costs.

Independent Oil Supply. Large, separatehydraulic oil supply prevents cross-contamination and provides proper oilcooling, which reduces heat build-upand extends component life.

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HydraulicsThe 24M electro-hydraulics enable advanced machine controls with precise andpredictable movements.

“Smart Machine”. The 24M fullyintegrates all core systems creating a“Smart Machine.” The Cat data linkshares key data among systems,optimizing machine performance whilepreventing potential machine damage.

Electronic Technician (Cat ET).Cat ET is a two-way communicationtool that gives service technicians easyaccess to stored diagnostic data and letsthem configure the machine parametersthrough the Cat Data Link. This integratedfeature reduces machine downtime andlowers operating costs.

Diagnostics. Cat Messenger, combinedwith full systems integration, enhancesthe diagnostic capability of the 24M.Machine system errors are displayed intext as well as with fault codes, allowingservice technicians and operators toquickly analyze critical data, increasingmachine availability.

Machine Security System (MSS).The optional MSS uses electronicallycoded keys to limit usage by specificindividuals or times of the day.MSS deters theft, vandalism andunauthorized use.

Product Link. The optional Product Linksystem streamlines diagnostic efforts,and reduces downtime, maintenancescheduling and costs by providing acommunication flow of vital machinedata and location. Product Link givesautomatic updates on machine parameterssuch as machine hours, machine condition,location, fault codes and alarms directlyto your office computer.

Optional Automatic Blade Control.The Cat AccuGrade System automaticallycontrols the blade, improving operatorefficiency and productivity.

AccuGrade Attachment Ready Option.The AccuGrade system is fullyintegrated into the machine design,making installation quick and easy.Integral hydraulic and electricalcomponents are standard on the 24M(Grade Control Ready). The AccuGradeAttachment Ready Option providesadditional mounting brackets, cabcontrols and electrical harnesses foreasy installation of the Cross Slopeelectronics kit.

Cat Messenger. Standard on the 24M,Cat Messenger provides real-timemachine performance and diagnosticdata with an easy-to-use interface.Messenger monitors all system data andalerts the operator of any faults througha digital text display that can be shownin multiple languages.

Low Battery Elevated Idle. After the 24Mis at low idle for an extended periodand low system voltage is detected, idlespeed is raised. This ensures adequatesystem voltage and improves batteryreliability.

Automatic Engine Deration. Protects theC18 engine by automatically loweringengine torque output and alerting theoperator if critical conditions aredetected.

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Integrated Electronic SolutionsFull systems integration optimizes machine performance and availability.

Operator Presence System. The OperatorPresence System keeps the parking brakeengaged and hydraulic implementsdisabled until the operator is seated andthe machine is ready for safe operation.

Secondary Steering System. The standardsecondary steering system automaticallyengages a ground driven hydraulic pumpin case of a drop in steering pressure,allowing the operator to steer themachine to a stop.

Speed Sensitive Steering. The steeringsoftware automatically provides aninfinitely variable ratio between thejoystick and the steer tires, resultingin less sensitive steering as the groundspeed increases.

Low Sound and Vibration Levels.Isolation mounts for the cab, engineand transmission maximize operatorcomfort and help to minimize soundand vibration. These modificationsprovide a quieter and more comfortableworking environment, optimizingoperator focus.

Hydraulic Lockout. A simple switchlocated in the cab disables all implementfunctions while still providing machinesteering control. This safety feature isespecially useful while the machineis roading.

Brake Systems. Brakes are located ateach tandem wheel to eliminate brakingloads on the power train. In addition,the brake systems are redundant andutilize accumulators to enable stoppingin case of machine failure, furtherincreasing operational safety.

Rearview Camera. Visibility is furtherenhanced with an optional Work AreaVision System (WAVS) through a178 mm (7 in) LCD color monitor in thecab. Developed specifically for ruggedapplications, it improves productivityand increases operator awarenessof surroundings.

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Safety is an integral part of all machine and system designs.

Safety

Glare Reducing Paint

Blade Lift Accumulators. This standardfeature uses accumulators to help absorbimpact loads to the moldboard byallowing vertical blade travel. Blade liftaccumulators reduce unnecessary wearand help to avoid unintended machinemovement for increased operator safety.

Circle Drive Slip Clutches. Two standardcircle drive slip clutches protect thedrawbar, circle and moldboard fromshock loads when the blade encountersan immovable object. It also reduces thepossibility of abrupt directional changesin poor traction conditions, protectingthe machine, operator and surroundings.

High Intensity Discharge (HID) Lighting.Optional HID lights can replace thestandard halogen lamps. The powerfulHID lights are four times brighter,improving night time visibility and safety.

Electrical Disconnect Switch. A batterydisconnect switch provides ground-levellockout of the electrical system to preventinadvertent starting of the machine.

Engine Shutoff Switch. An engineshutoff switch is located at ground levelon the left rear of the machine, allowinganyone nearby to shut it down in case ofan emergency.

Window Cleaning Platform. The optionalwindow-cleaning platform provides aneasier and safer access to all windowsand improves ingress/egress to the cabwith access from the rear.

Steel Tandem Walkways. Perforatedraised steel walkways cover the tandems.This provides a sturdy platform forstanding and walking, and additionalprotection for the brake lines. A stairwaylamp illuminates the walkway and canbe activated at ground level during entryand shut off with a switch in the cab.

Dual Exits. The operator has dual exitsfrom the machine allowing for emergencyegress should one side become obstructed.

Fire Suppression Mounting Plate.The standard fire suppression mountingplate places the tanks in the optimumposition for improved visibility,ingress/egress and durability.

Rear Fenders. To help reduce objectsflying from the tires, as well as a build-up of mud, snow or debris, optional rearfenders can be added.

Additional Safety Features. The 24Mhas many additional standard safetyfeatures, including laminated glass on -the front window, back-up lights,sounding alarm, lockable doors, blackglare-reducing paint on the front frame,engine enclosure and lift arms andconveniently located grab rails foradded safety.

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Grouped Service Points. The 24Mgroups daily service points in the leftside service center to help ensure propermaintenance and inspection routines.

Extended Service Intervals. The 24Mextended service intervals, such as500-hour engine oil changes and4000-hour hydraulic oil changes,reduce machine service time andincrease availability.

Fast-Fill Fuel. The 24M offers a standardFast-Fill that allows customers to refuelin less than four minutes for fast,accurate filling and reduced downtime.

Ecology Drains. Conveniently locatedecology drains shorten service timesand help keep the environment safeby preventing spills.

Automatic Lubrication System.The standard Lincoln Centro-MaticAutoLube System maintains the propergrease lubrication on working surfaces,significantly extending component life.Contaminants are purged from openpins and bushings to help prevent dirtfrom damaging critical components.

Grouped Components Rebuilds.Rebuilds take your machine out ofservice. Caterpillar designs componentsto be rebuilt in groups, maximizinguptime.

Diagnostics and Monitoring. The 24Mintegrates Cat Messenger, Cat ElectronicTechnician and S•O•SSM Samplingports for easy monitoring and fasttroubleshooting, keeping your machineup and running.

Machine Selection. Make detailedcomparisons of the machines underconsideration before purchase. Cat dealershelp you size the right machine for youroperations and can estimate componentlife, preventative maintenance cost, andthe true cost of production.

Purchase. Consider the financing optionsavailable, as well as day-to-day operatingcosts. Look at dealer services that canbe included in the cost of the machineto yield lower equipment owning andoperating costs over the long run.

Maintenance Services. Repair optionprograms guarantee the cost of repairsup front. Diagnostics programs suchas Scheduled Oil Sampling, S•O•SSM

analysis, Coolant Sampling and TechnicalAnalysis help avoid unscheduled repairs.

Product Support. You will find nearlyall parts at our dealer parts counter.Cat dealers use a world-wide computernetwork to track in-stock parts tominimize machine down time.Save money with genuine Cat Remanparts. You receive the same warrantyand reliability as new products atsubstantial cost savings.

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Serviceability and Customer SupportSimplified service, world-class product support and Cat dealer-trained experts keep yourfleet up and running, maximizing your equipment investment.

1724M Motor Grader specifications

Operating Specifications

Top Speed – Fwd 43 km/h 26.7 mphTop Speed – Rev 41.2 km/h 25.6 mphTurning Radius (outside front tires) 12.4 m 40 ft 9 inSteering range – left/right 47.5°Articulation Angle – left/right 25°Fwd. 1st 3.6 km/h 2.3 mphFwd. 2nd 5.7 km/h 3.5 mphFwd. 3rd 9.6 km/h 6 mphFwd. 4th 15 km/h 9.3 mphFwd. 5th 27.7 km/h 17.2 mphFwd. 6th 43 km/h 26.7 mphRev. 1st 5.4 km/h 3.4 mphRev. 2nd 14.3 km/h 8.9 mphRev. 3rd 41.2 km/h 25.6 mph

Service Refill

Fuel Capacity 1326 L 350 galCooling System 90 L 24 galHydraulic system – total 264 L 70 galHydraulic system – tank 135 L 36 galEngine Oil 60 L 16 galTransmission Oil 87.1 L 23 galDifferential/Final Drives 184 L 49 galTandem housing (each) 322 L 85 galFront wheel spindle 4 L 1 galbearing housingCircle drive housing (each) 7.5 L 2 gal

Frame

Circle – diameter 2631 mm 103.6 inCircle – blade beam thickness 160 mm 6.3 inDrawbar – height 215 mm 8.5 inDrawbar – thickness 16 mm 0.6 inDrawbar – width 225 mm 8.9 inFront-top/bottom plate – width 514 mm 20.2 inFront-top/bottom plate – thickness 50 mm 2 inFront-side plates – width 415 mm 16.3 inFront-side plates – thickness 25 mm 1 inFront axle – height to center 817 mm 32.2 inFront axle – wheel lean, left/right 18°Front axle – total oscillation per side 32°Height – front axle center 858 mm 33.8 in

Engine

Base Power (all gears) – Net 397 kW 533 hpEngine Model Cat® C18 ACERT™Displacement 18.1 L 1,104.5 in3

Bore 145 mm 5.7 inStroke 183 mm 7.2 inMax torque 2389 N·m 1,762 ft-lbSpeed @ rated power 1,800 rpmNumber of cylinders 6Derating altitude 1676 m 5,500 ftStd – Fan speed – max 1,300 rpmStd – Fan speed – min 60 rpmStd – Ambient Capability 50° C 122° F

• Net power is tested per ISO 9249, SAE J1349, and EEC80/1269 standards in effect at the time of manufacture

• Net power advertised is the power available at a ratedspeed of 1,800 rpm, measured at the flywheel when engineis equipped with fan running at minimum speed, air cleaner,muffler and alternator

• No engine derating required up to 1676 m (5,500 ft)

Power Train

Forward/Reverse Gears 6 Fwd/3 RevTransmission Automatic, electronic

power shiftBrakes – service Oil-actuated, oil-discBrakes – service, surface area 101 508 cm2 15,733 in2

Brakes – parking Spring applied,hydraulically released

Brakes – secondary Oil-actuated, oil-disc

Hydraulic System

Circuit type Electro-hydraulic loadsensing, closed center

Pump type Variable pistonPump output 550 L/min 145 gal/minMaximum system pressure 24 150 kPa 3,500 psiStandby Pressure 3100 kPa 450 psi

• Pump output measured at 2,150 rpm

18 24M Motor Grader specifications

Ripper

Ripping depth, maximum 454 mm 17.9 inRipper shank holders 7Shank holder spacing – min 593 mm 23.4 inShank holder spacing – max 604 mm 23.8 inPenetration force 11 851 kg 26,138 lbPryout force 17 386 kg 38,330 lb

Weights

Gross Vehicle Weight – base– total 62 457 kg 137,694 lb– front axle 18 862 kg 41,584 lb– rear axle 43 595 kg 96,110 lb

Gross Vehicle Weight – max – total 66 138 kg 145,808 lb– front axle 19 907 kg 43,887 lb– rear axle 46 231 kg 101,921 lb

• Base operating weight calculated on standard machineconfiguration with 29.5-29 28PR tires, full fuel tank, coolant,lubricants and operator.

Standards

ROPS/FOPS ISO 3471/ISO 3499Steering ISO 5010:1992Brakes ISO 3450Sound ISO 6394/ISO 6395

• The static operator sound pressure level measured accordingto ISO 6394:1998 for a cab offered by Caterpillar, whenproperly installed, maintained and tested with doors andwindows closed and hydraulic fan at maximum speed,is less than 73 dB(A).

• The dynamic spectator sound power level for the standardmachine measured according to ISO 6395:1988 with nosound suppression package and hydraulic fan running atmaximum speed is 115 dB(A). When machine is equippedwith sound suppression package and hydraulic fan runningat 70% of maximum speed, machine sound measured is lessthan 111 dB(A), complying with EU 2000/14/EC requirement.

Tandems

Height 1040 mm 41 inWidth 353 mm 13.9 inSidewall thickness – inner 25 mm 1 inSidewall thickness – outer 30 mm 1.2 inDrive chain pitch 76 mm 3 inWheel axle spacing 2285 mm 90 inTandem oscillation – front up 20°Tandem oscillation – front down 20°

Moldboard

Width 7.3 m 24 ftHeight 1067 mm 42 inThickness 50 mm 2 inArc radius 550 mm 21.7 inThroat clearance 162 mm 6.4 inCutting edge – width 330 mm 13 inCutting edge – thickness 29 mm 1.1 inEnd Bit – width 203 mm 8 inEnd Bit – thickness 25 mm 1 in

Blade Range

Circle centershift – right 5338 mm 210.2 inCircle centershift – left 5332 mm 209.9 inMoldboard sideshift – right 4902 mm 193 inMoldboard sideshift – left 4528 mm 178.3 inMaximum blade position angle 35°Blade tip range – forward 40°Blade tip range – backward 0°Maximum shoulder reach outside of tires

– right 3228 mm 127.1 in– left 3222 mm 126.9 in

Maximum lift above ground 634 mm 25 inMaximum depth of cut 657 mm 25.9 in

1924M Motor Grader specifications

DimensionsAll dimensions are approximate, based on standard machine configuration with 29.5-29 28PR tires.

1 Height – top of cab 4452 mm 175.3 in2 Height – front axle center 858 mm 33.8 in3 Length – between tandem axles 2285 mm 90 in4 Length – front axle to moldboard 4048 mm 159.4 in5 Length – front axle to mid tandem 10 278 mm 404.6 in6 Length – front tire to end of rear frame 14 194 mm 558.8 in7 Length – counterweight to ripper 16 102 mm 633.9 in

8 Ground clearance at rear axle 607 mm 23.9 in9 Height to top of cylinders 3846 mm 151.4 in10 Height to exhaust stack 4322 mm 170.2 in11 Width – tire center lines 3450 mm 135.8 in12 Width – outside rear tires 4225 mm 166.3 in13 Width – outside front tires 4280 mm 168.5 in

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

ELECTRICALAlarm, back upAlternator, 150 ampere, sealed, filtered air intakeBatteries, maintenance free, 1,500 CCABreaker panelElectrical system, 24VGrade Control Ready – Cab harness, software,

electrical hydraulic valves, bosses and bracketsLights, reversingLights, stop and tail, LEDProduct Link ReadyStarter, electric, heavy-dutyStarting receptacle, plug-inWiring for communications radioWiring for roof mounted beacon

OTHER STANDARD EQUIPMENTAccumulators, blade liftAuto-lube, Lincoln, Centro-MaticBrake accumulators, dual certifiedBumper, rear, integrated with hitchClutch, circle drive slip (2)Cutting edges

curved DH-2 steel330 mm � 28 mm (13 in � 1.1 in)

Doors (8), engine compartment, lockingDrain, ecology, engine oil, high-speed (Wiggins)Drawbar – 8 shoe with replaceable wear stripsEndbits, 25 mm (1 in) DH-2 steelExtended Life Coolant to –50° C (–58° F)Frame, articulated, with safety lockGround level engine shutdownGround level fuelingGuards, valveHorn, electric (2)Hydraulics, base 8 implement controlsHydraulics, load-sensingLockout, hydraulic implement for roadingMoldboard

7315 mm � 1076 mm � 50 mm (24 ft � 42 in � 2 in)hydraulic sideshift and tip

Paint, glare reducing – top of front frame, rear enclosureand lift arms

Radiator cleanout accessRipper, rearSecondary steeringServiceability, LH sideS•O•SSM ports: engine, hydraulic, transmission, coolant, fuelTandem walkway/guards

TIRES, RIMS, & WHEELSPartial allowance for tires and multi-piece rims

OPERATOR ENVIRONMENTAir conditioner/heater, modularArmrest, adjustableArticulation, automatic Return-to-CenterAshtray and lighterCat Messenger, operator information systemCoat hookCup holderDisplay, digital speed and gearDoor, driver access (left and right sides)Fan, defroster, rear windowGauges – articulation, engine coolant temp,

engine RPM, fuel, system voltageHour meter, digitalJoystick hydraulic controls

implements, steering, transmissionLights, night time cabMirror, inside rearview, wide anglePower port, 12VPrecleaner, Cab HVACROPS cab, sound suppressedSeat, air suspension, clothSeat belt, retractable 76 mm (3 in)Storage area for cooler/lunchboxSun shadeThrottle control, electronicWindows, laminated glass:

front with intermittent wiper/washerWindows, side and rear (3)Wiper/washer, rearWrist rests, adjustable

POWER TRAINAir cleaner, dual stage, dry type, automatic dust ejector,

service indicator through Cat MessengerAir-to-air after cooler (ATAAC)Belt, serpentine, automatic tensionerBrakes, four-wheel hydraulicDifferential, lock/unlockElectronic over speed protectionEngine, Cat® C18 with ACERT™ TechnologyEther starting aidFuel tank, fast fill, ground levelFuel-water separatorHydraulic demand fanMuffler, under hoodParking brake – multi-disc, sealed, oil-cooledPriming pump, fuelRear axle, modularSediment drain, fuel tankTransmission, 6F/3R, power shiftTransmission, autoshift

20 24M Motor Grader specifications

2124M Motor Grader specifications

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

kg lb

POWER TRAIN

Engine, compression brake

OTHER ATTACHMENTS

AccuGrade ARO 18 40

Camera, rearview 9 20

Cat Product Link 321SR 5 10

Fenders, rear 574 1,265

Float, variable 91 200

Horn, air 7 15

Security system 2 5

Sound suppression 28 62

Starting, cold weather 77 169

240 V heaters for hydraulic oiland jacket water

WORK TOOLS/G.E.T.

Cutting Edges

Push plate, counterweight 269 592

Ripper tooth 72 158

kg lb

ELECTRICAL

Converter, communications 2 5

Lights:Lighting arrangements,plus HID options

Warning: Beacon

GUARDS

Guard, transmission 227 500

Guards, mud 23 50

OPERATOR ENVIRONMENT

Access, dual platform 635 1,400

Access, left hand platform 374 825

Mirrors, outside:

Heated 24V 14 30

Mounted 13 28

Radio ready, AM/FM or Satellite 2 5

22 24M Motor Grader specifications

Notes

2324M Motor Grader specifications

Notes

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

© 2011 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 Cat dealer for available options.

CAT, CATERPILLAR, ACERT, AccuGrade, XT, SAFETY.CAT.COM, their respective logos,“Caterpillar Yellow” and the “Power Edge” trade dress, as well as corporate and product

identity used herein, are trademarks of Caterpillar and may not be used without permission.

AEHQ5735-02 (12-11)

Replaces AEHQ5735-01

24M Motor Grader