®®

Global VersionCat® C-9 ETA Engine

Base Power (all gears) 108 kW 145 hpVariable Horsepower Arrangement

- gears 1-3 108 kW 145 hp- gears 4-8 123 kW 165 hp

Variable Horsepower Plus Arrangement- gears 1-3 108 kW 145 hp- gears 4-6 123 kW 165 hp- gears 7-8 138 kW 185 hp

WeightsGross Vehicle Weight-base 14 200 kg 31,320 lb

front axle 3784 kg 8346 lbrear axle 10 416 kg 22,974 lb

MoldboardBlade Width 3658 mm 12 ft

12HMotor Grader

2

12H Motor GraderThe 12H blends productivity and durability to give you the best return on your investment.

Matched and balanced components.The Cat® C-9 engine, direct-drive powershift transmission and load-sensinghydraulics are designed to work together todeliver top productivity in all applications.

Superior visibility, control layout andoperating ease.The operator is the single most importantfactor in maintaining high productivitythroughout the work day. By offering thebest operator’s station in the industry,Caterpillar helps operators achieve peakperformance.

Environmentally Responsible Design

New engine arrangements and operatorstation designs reduce emissions tomeet current and anticipated regulationsfor interior and exterior sound levels,emissions, exhaust. pg. 12

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Operator’s Station

Low effort blade controls, electronicthrottle control, EMS III monitoringsystem, and improved ventilationprovide world-class operator controland comfort. Excellent front and rearvisibility can increase operatorconfidence and productivity. pg. 10

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Hydraulics

The load-sensing hydraulic systemlowers power consumption and systemheat. The advanced PPPC controlvalves provide low lever effort,balanced flow and consistent cylinderspeeds for outstanding blade control.Blade float is incorporated into theblade lift valves. pg. 6

Power Train

The power shift transmission takes fulladvantage of the powerful C-9 engine.Variable Horsepower uses specifictorque curves for each gear range foroptimum performance. Dual air systemand multi-disc oil brakes assure reliablebraking control. pg. 5

Engine

The Cat C-9 engine is designed andrated to handle the tough loads. TheVariable Horsepower option maximizesresponse, power, and efficiency,while the direct drive, power shifttransmission optimizes blade controland versatility. pg. 4

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✔ New Feature

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Customer Support

Your Cat dealer offers a range ofservices that help you operate longerwith lower costs. pg. 13

Serviceability

Caterpillar® re-engineered inspectionand service points, grouping them intoa convenient left-hand side, groundlevel ‘service center.’ Ground levelfueling and extended engine andhydraulic oil change intervals helpminimize downtime. pg. 9

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Structures

The 12H frame is designed and builtto exceed the expectations of thecustomer. pg. 8

Drawbar, Circle, Moldboard

Flexible moldboard positioning anda long wheelbase improve materialhandling. Rugged construction andreplaceable wear parts minimizeoperation costs. pg. 7

Cat C-9 ETA Engine. The innovativeCat C-9 diesel engine delivers large-engine performance from a compactengine design. This six-cylinder engineis turbocharged and air-to-air aftercooled.With high displacement and low ratedspeed, the C-9 provides excellent fueleconomy and durability that cansignificantly reduce operating costs.

Variable Horsepower (VHP) andVHP Plus. Automatically increaseshorsepower in higher gears when themachine can use it. In applications suchas snow removal, this power allowshigher travel speeds and faster snowremoval for more snow clearing in lesstime. Also, the higher rimpull in allgears maximizes performance duringhigh-speed winging and heavy snowload applications. In lower gears wheretraction is limited, horsepower islimited, reducing wheel slip andconserving fuel.

• The 12H has a VHP Plus option toprovide additional horsepower inforward gears 7-8.

Lugging Performance. High torqueoutput and torque rise makes the C-9very responsive. Its superior luggingmaintains consistent grading speedswithout the need to downshift.

Fuel Efficiency. Caterpillar state-of-the-art electronically controlled, unitinjection fuel system uses high injectionpressures for complete fuel combustion,efficient fuel use and reduced emissions.The dual-filter system reducescomponent wear.

Turbocharged and Air-To-AirAftercooled. Turbocharger packs moredense air into the cylinders for morecomplete combustion and loweremissions, improving performance andengine efficiency. These benefits areespecially useful at high altitudes.Air-to-air aftercooler reduces smokeand emissions by providing cooler inletair for more efficient combustion. Thisalso extends the life of the piston ringsand bore.

Extended Engine Life. The large bore-stroke design and conservative powerrating minimize internal stresses andincrease component life. The lowengine speeds reduce engine wearand sound levels.

Hydraulic Demand Fan. Automaticallyadjusts fan speed according to enginecooling requirements. This systemreduces demands on the engine, putsmore power to the ground and improvesfuel efficiency.

Caterpillar Engine Oil. It is formulatedto optimize engine life and performanceand is strongly recommended for usein Cat diesel engines. The engine oilchange interval is increased to 500 hours.

Improved Torque. Power curvescustomized for the 12H increase peaktorque for higher ground speeds andenhanced productivity. Rimpull hasbeen increased in all gears for greaterproductivity.

Emissions Compliant. The new 12Hhas reduced NOx, hydrocarbon, andparticulate emissions. The Cat C-9meets or exceeds all U.S. EPA Tier 2and EU Stage II emissions controlrequirements.

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EngineCaterpillar® engines deliver increased performance and lower operating costs.

Power Shift Transmission. Designedand built specifically for Cat motorgraders, the rugged transmissionprovides on-the-go, full-power shiftingas well as inching capability.

Direct Drive. Delivers superior fuelefficiency and “feel” of blade loads,material hardness and ground speed.

Gear Selection. Eight forward andsix reverse speeds offer a wide operatingrange for maximum flexibility. Four gearsbelow 10.3 km/h (6.4 mph) matchworking speed to job conditions formaximum productivity in earthmovingjobs. Gears five, six and seven are optimalfor efficient snow removal operations.Gear 8 is designed for roading.

Electronic Transmission Control.Produces easy, smooth shifts tomaintain uniform surfaces duringshifting, and extends transmission lifeby reducing stress on transmissionclutches. A single lever controlsdirection, gear and the parking brake.

Electronic Clutch Pressure Control.ECPC smoothes shifts and improvesinching control, which increasesoperator comfort and productivity.It uses input from the transmissionand operator controls to modulatethe directional clutches and produceconsistent shifting.

Electronic Overspeed Protection.The transmission control upshiftsthe transmission to relieve overspeedconditions. The transmission controlwill also prevent a downshift untilmachine speed is within the range forthe requested gear. This can preventdamage and reduce component wear.

Inching Pedal. Delivers precise controlof machine movements in any gearwith low pedal effort and excellentmodulation, critical in close-quarterwork or finish grading. A new pedaldesign and location improvesmodulation and operator comfort.

Optional Autoshift. Improves ease ofoperation and maximizes productivityby automatically shifting thetransmission at optimal shift points.

Dual Air Tanks. Supply braking capacityto each side of the machine. This systemensures secondary braking capability inthe event a failure occurs in a singlebrake line. The dual air system also hasa large reserve for stalled-engine braking.

Brakes. Caterpillar multi-disc brakesoffer a large surface area for dependable,extended-life braking. The air-actuatedservice brakes, located in each of thefour wheel spindle housings, are sealed,adjustment free, and lubricated andcooled by tandem housing oil. Theparking/emergency brakes, located inthe transmission on the output shaft,are spring actuated and air pressurereleased. When engaged, they neutralizethe transmission and lock the wheels.

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Power TrainMatched Caterpillar components deliver smooth, responsive performance and reliability.

Load Sensing Hydraulics. A loadsensing variable displacement pumpand the advanced proportional prioritypressure-compensating (PPPC, or“triple-PC”) hydraulic valves providesuperior implement control andenhanced machine performance andefficiency. Continuously matchinghydraulic flow and pressure to powerdemands creates less heat and reducespower consumption.

Implement Control Valves. PPPC valveshave different flow rates for the headand rod ends of the cylinder. Thisinsures consistent extension andretraction properties for each cylinder,and improves operator ‘feel’ and systemresponse. All control valves use lockvalves to maintain blade settings. Linerelief valves protect cylinders fromexcessive pressure.

Balanced Flow. Hydraulic flow isproportioned to ensure all implementsoperate simultaneously. If demandexceeds pump capacity, all cylinders arereduced by the same ratio. The result isimproved productivity in virtually anyapplication.

Blade Float. Blade float, incorporatedinto the blade lift control valves, allowsthe blade to move freely under its ownweight. By floating both cylinders, theblade can follow the contours of theroad when removing snow. Floatingonly one cylinder permits the toe ofthe blade to follow a hard surface whilethe operator controls the slope with theother lift cylinder.

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

Heavy Duty XT™ Hose. Caterpillarhose technology allows high pressuresfor maximum power and reduceddowntime, while excellent routingminimizes exposure to damage.

Optional Hydraulic Lockout.Mechanically locks all moldboard,machine, and attachment control leversduring machine roading. This preventsimplements from being accidentallyengaged when the motor grader istraveling down the road.

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HydraulicsBalanced hydraulics deliver consistent, precise and responsive control.

1 Lock valve, 2 Line relief valve, 3 Blade float detent

Blade. Heat treated moldboard rails,through-hardened, curved DH-2™ steelcutting edge and end bits, and replaceablemetallic wear inserts assure a long,reliable service life. Three sideshiftmounting locations for the optionalmoldboard add flexibility.

Blade Positioning. The blade linkagedesign provides extensive moldboardpositioning, most beneficial in mid-range bank sloping and in ditch cuttingand cleaning.

Blade Angle. A long wheelbase allowsthe operator to obtain an aggressivemoldboard angle. This aggressive anglepermits material to roll more freelyalong the blade, which reduces powerrequirements. This is particularlyhelpful in handling very dry materials,cohesive soils, snow and ice.

Circle Construction. One-piece forgedcircle with hydraulically driven motorstands up to high stress loads. Raisedwear surfaces prevent circle teethwear against the drawbar. Sixty-fouruniformly spaced teeth on the front240° of the circle are flame cut and heatinduction hardened to resist wear. Andthe circle, with 360° rotation, is securedto the drawbar by six vertically andhorizontally adjustable shoes formaximum support.

Replaceable Wear Items. Tough,durable nylon composite wear insertsare located between the drawbar andcircle, and between the support shoesand circle. This sacrificial wear systemhelps keep components tight for finegrading and allows easy replacement.These inserts reduce rotational friction,resulting in extended component life.

Circle Drive Slip Clutch. The standardcircle drive slip clutch protects thedrawbar, circle and moldboard fromshock loads when the blade encountersimmovable objects. It also reduces thepossibility of the grader making abruptdirectional changes in poor tractionconditions.

Drawbar Construction. The Y-framedrawbar is constructed of two solidbeams for high strength and optimumdurability, as well as precise bladingcontrol. And the yoke plate completelycovers the top of the circle.

Blade Lift Accumulators. Optional bladelift accumulators absorb vertical shocksencountered when the moldboardcontacts immovable objects. This optionis especially useful in rough gradingand rocky areas.

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Drawbar, Circle, MoldboardEvery component is designed for maximum productivity and durability.

Integrated Bumper. The integratedbumper ties the rear frame togetherinto a cohesive unit to provide a solidplatform for the C-9 power train. This isespecially important in ripping and snowremoval applications where graders areequipped with snow wing attachments.

Rear Frame. Rear frame has two box-sectioned channels integral with fullywelded differential case for a solidworking platform.

Front Frame. Continuous top and bottomplate construction provides consistencyand strength. The flanged box sectiondesign removes welds from highstress areas, improving reliabilityand durability, and increasing resalevalues for the customer.

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StructuresThe 12H frame is designed and built to exceed the expectations of the customer.

1 Integrated bumper; 2 Box-sectioned channels; 3 Fully welded differential

Service Center. A ‘Service Center’on the left-hand side provides easy,centralized access to most check andmaintenance points. Routine inspectionand service are faster and easier, forbetter machine availability and loweroperating costs.

• Large hinged doors provide easyaccess to the adjacent engine andmaintenance service compartments.

• Engine and hydraulic oil checkpoints,coolant gauges, and air filters

• Tandem oil checkpoint

• Spin-on filters for oils, fuel, coolant

• Remote lubrication points, purgevalves and ecology drain lines

• Fuse panel with new automotive stylefuses located inside cab

• Sample ports for engine, hydraulic,transmission fluids, coolant and fuel,encourages preventive maintenanceand diagnostics like the S•O•SSM

Analysis program.

Fuel Tank. The 378 L (100 gal) groundlevel fuel tank allows longer work shiftsand reduces refueling times. An easilyaccessible fuel tank sediment drainenables the operator to remove sedimentaccumulation, reducing the risk of fuelsystem damage.

Extended Fluid Change Interval.Operate a full 500 hours betweenengine oil and filter changes,4,000 hours between hydraulic oilchanges, and 12,000 hours betweenengine coolant changes. This reducesdowntime and operating expense.

Cat XT Hose. Caterpillar XT hosetechnology allows high pressuresfor maximum power and reduceddowntime, while excellent routingminimizes exposure to damage.

O-Ring Face Seals. Cat O-ring faceseals assure rock-solid connections thatmaintain pressure and reduce oil leaks.Intelligent hose routing minimizesexposure to damage, increasing hoselife and enhancing reliability.

Radiator Cleanout Access. Radiatorclean-out access gives the operator theability to clear away debris and othermaterials that build up around theradiator. This ensures that the radiatorfunctions properly keeping the enginecool and increasing component life.

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ServiceabilityRe-engineered inspection and service points save time and expense.

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The 12H includes innovative changes to improve operator efficiency and, in turn, greatermachine productivity.

Operator’s Station

Comfort and Convenience. Comfort andconvenience are designed into everyfeature of the operator’s station.

Autoshift Transmission. Improvesease of operation and maximizesproductivity by automatically shiftingthe transmission at optimal shift points.

Optimized Inching Modulation. The newElectronic Clutch Pressure Control(ECPC) optimizes inching modulationand smoothes shifting. It also eliminatescable control, improving reliability andenhances cold oil characteristics.

Electronic Throttle Control. ETCprovides easier, more precise, moreconsistent throttle operation. Two modeson a single switch offer flexibility forvarying applications and operatorpreference. Like cruise control,ETC improves fuel efficiency.

Electronic Monitoring System. Powerfulmonitoring and diagnostic capabilitiesallow more efficient and safer machineoperation. The Cat EMS III keepsoperators better informed of machinestatus with:

• Continuous tracking of all criticalmachine parameters on a dash display

• Warnings/alerts for abnormalconditions

• Retrieval or adjustment of over200 electronic system parametersusing the powerful ET service tool

Controls On Steering Console. Controlsand switches are located on the steeringconsole, shift console and right cabpost, all within easy reach. Gauges arelocated inside the cab, directly in frontof the operator.

Backlit Controls. Rocker switches andtransmission shifter are backlit fornighttime operation.

Optional Air Conditioner/Heater.The optional heater and air conditionerarrangements help create a comfortablework environment. The high-capacitysystems dehumidify air and pressurizethe cab, which circulates fresh air andseals out dust. Multiple additional ventsevenly distribute air throughout the cabfor clear windows and operator comfort.

Suspension Seat. Optional contourseries suspension seat features fold-uparmrests and a retractable seat belt.The seat can easily adjust for optimalsupport and comfort. Seat controlsare located within easy reach and inplain view.

Fresh Air Filters. Located above eachcab door for quick replacement.

Optional 12V Power Port. Available foruse with computers, cellular phones orother electronic equipment.

Exceptional Visibility. Operator’sconsole was redesigned, and largeside windows allow a clear view ofthe moldboard heel and tandem tires.The 12H has a wide rear window andtapered engine hood. The air dryerand air leaner were moved, and theprecleaner and muffler were aligned.Operators can work more confidentlyand efficiently.

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Quiet Cab. The resiliently mountedengine and transmission reduce interiorengine noise and vibration. With thesound suppression group, interior soundlevels are 75 dB(A), per ISO 6394.Lower interior noise levels improveoperator working conditions.

Quiet Machine. Exterior soundlevels are 109 dB(A) per ISO 6395.The sound suppression group lowersexterior sound levels below 108 dB(A),complying with the EU 2000/14/ECsound limit of 109 dB(A). This quietoperation lets the 12H work withminimal disturbance to thesurroundings.

Low Emissions. The 12H Motor Graderis even more environmentally friendlythan its predecessors with reductionsin NOx, hydrocarbon, and particulateemissions. It meets or exceeds allU.S. EPA Tier 2 and EU Stage IIemissions control standards worldwide.

Fuel Efficient. Caterpillar state-of-the-art electronically controlled, unitinjection fuel system has high injectionpressure for complete fuel combustion,increased fuel efficiency and reducedemissions.

Dry Machine. Lubricant fill pointsand filters are designed to minimizespillage. O-ring face seals, Cat XThose and Cat hydraulic cylindersprotect against leaks.

Extended Oil Change Interval. Operatea full 500 hours between engine oil andfilter changes, 4000 hours betweenhydraulic oil changes, and 6000 hoursbetween engine coolant changes. Thisreduces downtime and operating expense.

Ecology Drains. Make regularmaintenance easier and help preventspills when changing fluids.

Ozone Protection. To help protect theearth’s ozone layer, air-conditioningunits use a refrigerant free ofchlorofluorocarbons (CFCs).

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Environmentally Responsible DesignCaterpillar builds machines that help you create a better world.

Product Support. You will find nearlyall parts at our dealer parts counter.Cat dealers use a world-wide computernetwork to find in-stock parts tominimize machine down time. Savemoney with genuine Cat Reman parts.You receive the same warranty andreliability as new products at substantialcost savings.

Machine Selection. Make detailedcomparisons of the machines underconsideration before purchase. Catdealers can estimate component life,preventive maintenance cost, and thetrue cost of lost production.

Purchase. Look past initial price.Consider the financing options availableas well as day-to-day operating costs.Look at dealer services that can beincluded in the cost of the machine toyield lower equipment owning andoperating costs over the long run.

Customer Support Agreements.Cat dealers offer a variety of productsupport agreements, and work withcustomers to develop a plan that bestmeets specific needs. These plans cancover the entire machine, includingattachments, to help protect thecustomer’s investment.

Operation. Improving operatingtechniques can boost your profits.Your Cat dealer has videotapes, literatureand other ideas to help you increaseproductivity, and Caterpillar offerscertified operator training classes tohelp maximize the return on yourmachine investment.

Maintenance Services. Talk to yourdealer about the range of availablemaintenance services. Repair optionprograms guarantee the cost of repairsup front. Diagnostic programs such asS•O•SSM Analysis and Coolant Samplingand Technical Analysis help avoidunscheduled repairs.

Replacement. Repair, rebuild orreplace? Your Cat dealer can helpyou evaluate the cost involved soyou can make the right choice.

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Customer SupportCat dealer services help you operate longer with lower costs.

14 12H Motor Grader specifications

Speed @ rated power 2000 RPMNumber of cylinders 6Derating altitude 3048 m 10,000 ftStd - Fan speed - max 1210 RPMStd - Fan speed - min 500 RPMStd - Ambient Capability 47° C 117° FHi Ambient - Fan speed - max 1350 RPMHi Ambient - Fan speed - min 500 RPMHi - Ambient Capability 50° C 122° F

• Net power is tested per ISO 9249, SAE J1349, andEEC 80/1269 standards in effect at the time of manufacture.

• VHP and VHP Plus are optional arrangements.

• Net power advertised is the power available at rated speedof 2000 rpm, measured at the flywheel when engine isequipped with fan, air cleaner, muffler and alternator.

• No derating required up to 3048 m (10,000 ft) altitude.Deration rate of 1.5% per 304.8 m (1000 feet) above 3048 m(10,000 feet).

Engine

Engine Model Cat C-9 ETA VHPBase Power (all gears) Net 108 kW 145 hpVHP - gears 1-3 Net 108 kW 145 hpVHP - gears 4-8 Net 123 kW 165 hpVHP Plus - gears 1-3 Net 108 kW 145 hpVHP Plus - gears 4-6 Net 123 kW 165 hpVHP Plus - gears 7-8 Net 138 kW 185 hpBase Power (all gears) Gross 116 kW 156 hpVHP - gears 1-3 Gross 116 kW 156 hpVHP - gears 4-8 Gross 131 kW 176 hpVHP Plus - gears 1-3 Gross 116 kW 156 hpVHP Plus - gears 4-6 Gross 131 kW 176 hpVHP Plus - gears 7-8 Gross 146 kW 196 hpDisplacement 8.8 L 537 in3

Bore 112 mm 4.4 inStroke 149 mm 5.9 in

Torque rise 50%Max torque @ 1000 rpm 988 N•m 728 lb-ft

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Gears 7 - 8

Power Train

Forward/Reverse Gears 8 fwd/6 revTransmission Direct drive, power shiftBrakes - Service Air actuated multiple

oil discBrakes - Service, surface area 23 948 cm2 3,712 in2

Brakes - Parking Air-actuated, multipleoil-disc

Brakes - Secondary Dual circuit

• Brakes meet the following standards: SAE J/ISO3450 JAN 98.

1512H Motor Grader specifications

Frame

Circle - diameter 1530 mm 60.2 inCircle - blade beam thickness 30 mm 1.2 inDrawbar - height 127 mm 5 inDrawbar - thickness 76 mm 3 inFront-top/bottom plate - width 305 mm 12 inFront-top/bottom plate - thickness 25 mm 1 inFront-side plates - width 242 mm 9.5 inFront-side plates - thickness 12 mm 0.5 inFront-linear weights - min 165 kg/m 112 lb/ftFront-linear weights - max 213 kg/m 144 lb/ftFront-section modulus - min 2083 cm3 127 in3

Front-section modulus - max 4785 cm3 291 in3

Front axle - ground clearance 608 mm 23.75 inFront axle - front wheel lean 18ºFront axle - oscillation angle 32º

Tandems

Height 506 mm 19.9 inWidth 201 mm 7.9 inSidewall thickness - inner 16 mm 0.63 inSidewall thickness - outer 18 mm 0.71 inDrive chain pitch 51 mm 2 inWheel axle spacing 1522 mm 60 inTandem oscillation - forward 15ºTandem oscillation - reverse 25º

Moldboard

Blade Width 3658 mm 12 ftMoldboard Height 610 mm 24 inThickness 22 mm 0.87 inArc radius 413 mm 16.25 inThroat clearance 120 mm 4.7 inCutting edge - width 152 mm 6 inCutting edge - thickness 16 mm 0.63 inEnd Bit - width 152 mm 6 inEnd Bit - thickness 16 mm 0.63 inBlade Pull - max GVW 13 094 kg 28,867 lbBlade Pull - base GVW 9379 kg 20,677 lbDown Pressure - max GVW 10 799 kg 23,800 lbDown Pressure - base GVW 6555 kg 14,447 lb

• Blade Pull calculated at 0.9 traction coefficient, whichis equal to ideal no-slip conditions, and Gross VehicleWeight (GVW).

Hydraulic System

Circuit type Closed center load sensePump type Variable pistonPump output 196 L/min 51.9 gal/minMaximum system pressure 24 150 kPa 3,500 psiStandby Pressure 3100 kPa 450 psi

• Pump output measured @ 1850 RPM

Operating Specifications

Top Speed - Fwd. 44 kph 27.4 mphTop Speed - Rev. 34.7 kph 21.6 mphTurning radius (outside front tires) 7.4 m 24.25 ftSteering range - left/right 50ºArticulation angle - left/right 20ºFwd. 1st 3.8 kph 2.3 mphFwd. 2nd 5.1 kph 3.2 mphFwd. 3rd 7.4 kph 4.6 mphFwd. 4th 10.3 kph 6.4 mphFwd. 5th 16.2 kph 10 mphFwd. 6th 22 kph 13.7 mphFwd. 7th 30.3 kph 18.8 mphFwd. 8th 44 kph 27.4 mphRev. 1st 3 kph 1.8 mphRev. 2nd 5.6 kph 3.5 mphRev. 3rd 8.1 kph 5 mphRev. 4th 12.8 kph 7.9 mphRev. 5th 23.9 kph 14.8 mphRev. 6th 34.7 kph 21.6 mph

Service Refill

Fuel Capacity 378 L 100 galCooling system 44 L 11.6 galHydraulic system - total 74 L 19.5 galHydraulic system - tank 38 L 9.9 galEngine Oil 24 L 6.3 galDifferential/Final Drives 47 L 12.2 galTandem housing (each) 64 L 16.9 galFront wheel spindle bearing housing 0.5 L 0.13 galCircle drive housing 7 L 1.8 gal

16 12H Motor Grader specifications

Weights

Gross Vehicle Weight - max 20 783 kg 45,818 lbFront axles 6234 kg 13,744 lbRear axles 14 549 kg 32,074 lb

Gross Vehicle Weight - base 14 200 kg 31,320 lbFront axles 3784 kg 8,346 lbRear axles 10 416 kg 22,974 lb

• Base operating weight calculated on standard machineconfiguration with 13.00-24 10PR (G-2) tires, full fuel tank,coolant, lubricants and operator.

Cab

• ROPS (Rollover Protective Structure) meets the followingcriteria: SAE J1040 MAY 94, ISO 3471: 1986, ISO 3471:1994

• FOPS (Falling Object Protective Structure) meets thefollowing criteria: ISO 3449:1984, ISO 3449:1992 Level II

Blade Range

Circle centershift - right 728 mm 28.7 inCircle centershift - left 695 mm 27.4 inMoldboard sideshift - right 660 mm 26 inMoldboard sideshift - left 524 mm 20.6 inMaximum blade position angle 90ºBlade tip range (forward) 40ºBlade tip range (backward) 5ºMaximum shoulder reach outside of tires

- right 1809 mm 71.2 in- left 1859 mm 73.6 in

Maximum lift above ground 480 mm 18.9 inMaximum depth of cut 735 mm 28.9 in

Ripper

Ripping depth, maximum 462 mm 18.2 inRipper shank holders 5Ripper shank holder spacing 533 mm 21 inPenetration force 8047 kg 17,740 lbPryout force 9281 kg 20,460 lbMachine length increase, 970 mm 38.2 inbeam raised

Scarifier

Front, V-Type: Working width 1184 mm 46.6 inFront, V-Type: Scarifying depth, 292 mm 11.5 in

maximumFront, V-Type: Scarifier shank 11

holdersFront, V-Type: Scarifier shank 116 mm 4.6 in

holder spacingFront, straight: Working width 1800 mm 71 inFront, straight: Scarifying depth, 317 mm 12.5 in

maximumFront, straight: Scarifier shank 17

holdersFront, straight: Scarifier shank 111 mm 4.38 in

holder spacingRear: Working width 2300 mm 91 inRear: Ripping depth, maximum 411 mm 16.2 inRear: Scarifier shank holders 9Rear: Scarifier shank holder 267 mm 10.5 in

spacing

1712H Motor Grader specifications

DimensionsAll dimensions are approximate.

1 Height - low profile cab 3107 mm 122 in- high profile cab 3332 mm 131 in- no cab 3090 mm 122 in

2 Height to axle 594 mm 23.4 in3 Length - between tandem axles 1523 mm 59.9 in4 Length - front axle to moldboard 2565 mm 101 in5 Length - front axle to mid tandem 6086 mm 239.6 in6 Length - front tire to end of

rear frame 8571 mm 337.4 in

7 Length - counterweight to ripper 10 012 mm 394.2 in8 Ground clearance at trans. case 341.5 mm 13.4 in9 Height to exhaust stack 3090 mm 122 in10 Height to top of cylinders 3030 mm 119 in11 Width - tire centerlines 2077 mm 81.8 in12 Width - outside rear tires 2422 mm 95.3 in13 Width - outside front tires 2440 mm 96 in

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

POWERTRAINAir cleaner

dry type radial sealservice indicatorautomatic dust ejector

Air-to-air aftercooler (ATAAC)Brakes - oil disc, four-wheel air actuated Demand fanDifferential, lock-unlockEngine, C-9 ETA diesel

automatic derateautomatic idle control

Fuel tank, sediment drain Fuel-water separatorLube for life pump drive shaftMuffler, under hoodParking brake - multi-disc, sealed and oil cooledPre-screenerPriming pump, fuelSerpentine belt, automatic tensionerTandem driveTransmission

8 forward/6 reverse speedspower shiftdirect driveelectronic shift controloverspeed protection

OTHER STANDARD EQUIPMENTAntifreeze –35°C (–30°F)Bumper, rear, integrated, with hitchClutch, circle drive slipCutting edges

152 mm � 16 mm (6 in � 5/8 in) curved DH-2 steel 16 mm (5/8 in) mounting bolts

Doors, engine compartment, lockingDrawbar

6 shoereplaceable wear strips

Endbits - 16 mm (5/8 in) DH-2 steel, mounting boltsEngine shutdown, ground levelFrame, articulated with safety lockFuel tank, 100 gallon (378 L)Fueling, ground levelHorn, air Moldboard

3658 mm � 610 mm � 22 mm (12 ft � 24 in � 7/8 in) hydraulic sideshift and tip

Radiator cleanout accessS•O•SSM ports: engine, hydraulic, transmission, coolant, fuelTool box

TIRES, RIMS, AND WHEELSPartial allowance: 13.00-24 10PR on 9" single piece rims

ELECTRICALAlarm, back-upAlternator, 35 ampere, sealedBatteries, maintenance free, 750 CCA Electrical system, 24 volt Lights, stop and tailMotor, startingProduct Link connection

OPERATOR ENVIRONMENTAcceleratorAshtray and lighterCoat hookControl console, adjustableCup holderEMS III operator warning systemPanel gauges inside cab

fuelarticulationengine coolant tempsystem voltageair brake pressure

Hydraulic controls, load sensingright/left blade lift with float positionblade sideshift and tipcircle drivecentershiftfront wheel leanarticulation

Meter, hour, digitalMirror, inside rearview, wide angleMounting bracket, general purposePower steering, hydraulicROPS cab, sound suppressed, low profileSeat, cloth, staticSeat belt, retractable 76 mm (3 in)Steering wheel, tilt, adjustableStorage area for cooler/lunchboxSunscreen, front windshieldThrottle control, electronicWasher/wipers, (3) front windshieldsWindows, fixed lower front

18 12H Motor Grader specifications

1912H Motor Grader specifications

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

kg lb

Hydraulic arrangements with one or moreadditional hydraulic valves are available for front scarifier, rear ripper-scarifier, dozer, dozer angle, snow plow andsnow wing. See dealer price list.

Hydraulic lockout 2 5Lighting systems:

bar mounted, directional and headlights 13 28cab mounted, directional and headlights 9 20cab and bar mounted, directional,

headlights and work lights 22 48cab and bar mounted, high, directional,

headlights and work lights 22 48work lights, front and rear 6 13snow wing light, right 18 40warning light, cab or canopy mounted 3 6

Mirrors, dual, inside mounted - -Mirrors, outside mounted 8 18Mirrors, outside mounted, heated 11 25Mount, snow wing, frame-ready 91 200Power port, 12-V 2 5Precleaner, turbine-type - -Push plate, front mounted 919 2025Radio ready, entertainmentReceptacle, starting, plug-in 2 5Rims, tires - refer to dealer price listRipper-scarifier, rear 961 2119Ripper-scarifier/tooth, one 33 72Rear scarifier, shanks/teeth, nine 65 144Scarifier, front mounted, V-type 845 1862Scarifier, front mounted, straight 903 1988Seat, cloth-covered, contour air suspensionSeat, vinyl-covered, contour suspensionSnow arrangements, refer to

Snow Arrangement SupplementSound suppression 91 200Speedometer/tachometer 1 2Steering, secondary 50 111Sunshade, rear window 3 7Windows, lower front, opening 3 6Windows, sliding side 4 8Wiper and washer, rear, intermittent 7 16Wiper and washer, front, intermittentEuropean roading group which provides

an additional air tank, air circuit protection valve and two position lights with integral turn signals. Dealer supplied equipment is required to meet some specific country on-road requirements 23 52

kg lb

Accumulators, blade lift 71 156Air conditioner with heater and pressurizer 49 107Air dryer 13 29Alternator, 75 ampere 7 15Autoshift, transmission 2 5Batteries, extreme duty, 1300 CCA 58 128Batteries, heavy duty, 1100 CCA 42 93Blade, 3658 mm � 688 mm � 25 mm

(12 ft � 27 in � 1 in) 151 340Blade, 3962 mm � 686 mm � 25 mm

(13 ft � 27 in � 1 in) 208 460Blade, 4267 mm � 610 mm � 22 mm

(14 ft � 24 in � 7/8 in) 75 166Blade, 4267 mm � 688 mm � 25 mm

(14 ft � 27 in � 1 in) 261 574Blade, front-mounted 2750 mm � 980 mm

(9 ft � 39 in) 850 1874Blade, front dozer 1180 2602Blade, front, narrow 1100 2425Blade, front, with foldable ends 1525 3362Cab, ROPS, high profile, sound suppressed 77 170Canopy, ROPS, high profile,

with rear wall and window –41 –90Converter, 25-amp, 24-V to 12-V 5 11Covers, louver with screen 7 15Covers, lower rear frame 11 25Covers, metallic, fuel tank 11 25Cutting edges for 22 mm (7/8 in) thick blade

203 mm � 19 mm (8 in � 3/4 in) for 3.7 m blade203 mm � 19 mm (8 in � 3/4 in) for 4.1 m blade203 mm � 16 mm (8 in � 5/8 in) for 3.7 m blade203 mm � 16 mm (8 in � 5/8 in) for 4.1 m blade

Cutting edges for 25 mm (1 in) thick blade203 mm � 19 mm (8 in � 3/4 in) for 3.7 m blade203 mm � 19 mm (8 in � 3/4 in) for 4.1 m blade

Endbits, overlay, reversible 11 24Engine, VHP or VHP Plus 4 10Ether starting aid 1 2Extensions, blade 610 mm (2 ft) right and left

for 22 mm (7/8 in) thick blade 114 250for 25 mm (1 in) thick blade 148 325

Fan, defroster, front and rear 2 4Graderbit system, penetration bit type 163 360Guard, brake lines 8 18Guard, lower platform 23 50Guard, transmission 98 215Hammer, with mounting 5 12Heater, engine coolant 1 3Heater, cab 14 30Heater, cab, with pressurizer 18 40

R

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

© 2003 CaterpillarPrinted 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.

AEHQ5515-01 (2-03)

Replaces AEHQ5515

12H Motor Grader