®938H

Cat® C6.6 Engine with ACERTTM TechnologyGross Power (SAE J1995) 147 kW/200 hpNet Power (ISO 9249) at 1800 rpm 134 kW/182 hp

Bucket Capacity 2.3 to 3.0 m3

Operating Weight 15 100 to 15 600 kg

Wheel Loader

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New features✔

938H Wheel LoaderH-Series Wheel Loaders – The New Standard For Midsize Loaders

Productivity and Versatility

� Improved cycle times with Load-Sensing hydraulic system

� Locking differentials provide superior tractive effort in poorunderfoot conditions

� Constant net horsepower through the operating range

� Special machine arrangements for specialized applications

� Large variety of Cat® Work Tools

pg. 6

Reliability and Durability

� Proven components and technology

� ACERT Technology maintains performance, efficiency anddurability while meeting emissions regulations

� Heavy duty components stand up to all operating conditions

� Strong, solid structures built to last

� Diagnostic systems monitor product health to ensurereliability

� Unmatched parts availability and dealer support

pg. 4

Performance you can feel with the capability to work in the most demanding applications. Unmatched operator comfort and efficiency in a world class cab. Revolutionary electronics and hydraulics for low-effort operation. Increased productivity with lower owning and operating costs.

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Serviceability

� Service centers for convenientmaintenance

� Exceptional ground-level access to service points

� Monitoring systems and dealersupport reduce unexpected downtime

� Cat Product Link giving you high-speed access to a world-classdealer service

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Owning and Operating Cost

� Proven fuel efficiency

� Superior maintenance

� Electronic systems monitor producthealth and performance

� Engine idle management system

� Complete dealer support

pg. 12

Operator Comfort

� Easy entry and exit

� Excellent visibility

� Comfortable environment with controlled vibration

� Choice of steering and implementcontrol systems

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4

� Validated components and technology

� Electronic systems monitor vital machine components

� Excellent uptime from the best dealer support network in the industry

� Unmatched genuine Cat parts availability

Reliability and DurabilityThe Cat 938H – Built Strong and Tough – Tested And Proven – Ready To Work

Engine. The Cat C6.6 is a 6.6 literdisplacement, in-line six cylinderengine. The C6.6 utilizes ACERTTechnology, a series of Caterpillarengineered innovations that providesadvanced electronic control, precise fueldelivery and refined air management,resulting in outstanding performanceand lower emissions.The C6.6 with ACERT Technologyoffers a compact design with big, heavyduty engine features for outstandingdurability, reliability and performance.The C6.6 incorporates a new cross flowcylinder head design, 4 valve head andan ADEM A4 electronic controller.The C6.6 also features a provencylinder block, pistons and crankshaft.

Electronic Control ADEM A4.The Advanced Diesel EngineManagement – Electronic ControlModule consistently monitors importantengine conditions and functions. It usessensors throughout the engine toregulate fuel delivery and all otherengine systems that require input tomanage load and performance. TheADEM A4 controller is the brainbehind engine responsiveness, self-diagnosis, controlling emissions andfuel economy.

Air Management. Air managementis a key concept in optimizing engineperformance and controlling emissions.Engines must breathe clean cool air inorder to perform. To aid this, the C6.6uses a turbocharger fitted with a smartwaste gate to give precise and reliablecontrol of the boost pressure. A newcross-flow design in the cylinder headfacilitates air movement, while tightertolerances between the piston andcylinder wall reduce blow by gases.

Fuel System. Through multiple injectionfuel delivery, fuel is introduced inthe combustion chamber in a numberof precisely controlled microbursts.Injecting fuel in this way allows forprecise shaping of the combustion cyclewhile reducing engine sound levels

Fuel Pump. The C6.6 uses an oil-lubricated high-pressure fuel pumpto feed a common fuel rail. By usingan oil-lubricated fuel pump, the C6.6has been designed to be more tolerantof alternative fuels.

Proven Reliability. The 938H featuresmany of the components designed andproven in various Caterpillar products –all contribute to the reliability ofthe 938H:

� Frames

� Axles

� Countershaft powershift transmission

� Individual component cooling system

� Cab

ACERT™ Technology. Since March 2003,ACERT Technology has been provingitself in on-highway trucks. Morerecently it has proven itself again in fieldtests of off-highway equipment.This technology allows Cat enginesto meet durability and reliabilityexpectations without sacrificingperformance.

Engine Idle Management System.The Engine Idle Management System(EIMS) maximizes fuel efficiencyand provides flexibility in managing idle speeds for specific applicationrequirements. Four controlled idle speedsare available.

5

A

BC

Integrated Braking System. The Catexclusive Integrated Braking Systemreduces axle oil temperatures andimproves transmission neutralizersmoothness. IBS has a direct impacton durability of the axles and brakesespecially in applications involvinglong distances and/or heavy braking.A Downshift logic onlyB Brake application initiatedC Self-adjusting transmission

neutralization

Structures. The articulated frame designof the 938H features a durable plateengine frame and two plate loader towerthat is robotically welded. Roboticwelding creates frame joints with deepplate penetration welds and excellentfusion for maximum strength anddurability.

Linkage. The 938H linkage is a single-tilt Z-bar design. Z-bar linkagegenerates excellent breakout force andgood rack back angle for better bucketloading and load retention.Lift arms are solid steel, providingsuperior strength with an excellent frontend viewing area. The proven designoffers excellent dump clearanceand reach.

Counterweight. The two-piece counter-weight is integrated into the 938H designand provides added protection for thelights by incorporating them into the top ofthe structure.

Caterpillar Designed Components.Components used to build Cat WheelLoaders are designed and manufactured toCaterpillar quality standards to ensuremaximum performance even in extremeoperating conditions.Engine electronic control modules andsensors are completely sealed againstmoisture and dust. Deutsch connectors andelectrical wire braiding ensure thatelectrical connections resist corrosion andpremature wear.Hoses are engineered and manufacturedfor high resistance to abrasion, excellentflexibility and easy installation andreplacement.Caterpillar® couplings use o-ring face sealsto provide positive sealing for durableleak-free connections.Heavy duty components reduce the risk ofleaks, corrosion and premature wear,increasing uptime and helping to protectthe environment.

Monitoring Programs. Monitoring producthealth is key to maintaining reliability ofany equipment. Many programs areavailable on the 938H to help you trackmachine health.

Powershift Transmission. The 938Hcontinues to use powershift transmissiontechnology proven on previous series.The countershaft powershifttransmission features heavy-dutycomponents to handle the toughestapplications. Built-in electronic controlsenhance productivity and durability.

Controlled Throttle Shifting. ControlThrottle Shifting regulates engine speedduring high-energy directional and gearchanges for smoother shifting and longercomponent life.

Electronic Clutch Pressure Control.Electronic Clutch Pressure Control(ECPC) system modulates clutchesindividually to improve shift quality,component life and operator comfort.Adjustment is simplified with allsolenoid valves externally mountedon top of the transmission housing.

Axles. The 938H axles are designed byCaterpillar for durability in all operatingconditions. The front axle is rigidlymounted to the frame to support theweight of the wheel loader and withstandinternal torque loads as well as externalforces encountered throughout operation.The rear axle is designed to allow ± 12°oscillation. All four wheels remain onthe ground over uneven terrain providingexcellent stability and traction.

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� Hydraulics are easy to controlwith low effort

� Differential locks providemaximum traction in varyingunderfoot conditions

� Constant net horsepower acrossvarious applications

� Standard and optional featuresthat maximize productivity

Load-Sensing Hydraulics.The 938H features a Load-Sensinghydraulic system that supplies flowand pressure for the implementsonly upon demand, and only in theamounts necessary to perform the needed work thus providing amore efficient loader.With the new S3PC PriorityProportional PressureCompensation Valve, implementcontrol is improved over the pre-vious system – raise/lower and rackback/dump can be operatedsimultaneously.Operators will notice enhancedease of operation, more rimpull into the pile and a 16% increase in lift force.

Constant Net Horsepower. On manycompetitive machines, gross horse-power is constant, meaning that netengine power available for actual workwill vary based on demands made from parasitic sources, such as airconditioning or cooling fans.The Cat C6.6 engine is electronicallyconfigured to provide constant nethorsepower at full parasitic loadenhancing productivity and improvingfuel efficiency.

Countershaft Powershift Transmission.The electronic countershaft powershift trans-mission with automatic shift capability isdesigned and built by Caterpillar. The veryresponsive, full-power speed and directionalchanges provide excellent cycle times andproductivity.

Fuel Economy Mode. Match transmissionshifting patterns to machine applicationrequirements. The Fuel Economy Mode(within Messenger) provides operators withthe ability to choose between three differentshift modes in order to maximize shift qualityand fuel efficiency.

Productivity and VersatilityWork Smart And Move More

Ride Control. The optional Ride ControlSystem improves ride, performance and loadretention when traveling over rough terrain.Operators gain confidence moving at higherspeeds in load and carry operations decreasingcycle times and increasing productivity.

Variable Shift Control. Match transmissionshifting patterns to machine applicationrequirements. Variable Shift Control (VSC)improves shift quality and fuel efficiency in certain applications by allowing the trans-mission to upshift at lower engine RPMs.

New! Differential Lock. Maximize pro-ductivity with the new hydrauliclocking front differential. This standardfeature provides operators with theconfidence to maneuver through poorunderfoot conditions with ‘on the fly’engagement.A Caterpillar exclusive, the optionalautomatic front/rear locking differentialcollects input from sensors throughoutthe loader and adapts tractive effortto meet operating requirements.

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1 Standard Universal Buckets.These flat floor buckets, equippedwith various Ground Engaging Tools,provide easier pile penetration, betterfill factors and faster loading cycles;they are offered in a wide range ofcapacities and are recommended in allapplications, except fulltime bank orrock loading. All buckets featureintegral spill plates to prevent rearspillage, as well as, bottom and sidewear plates for greater durability.

2 General Excavation Buckets.Built to handle the toughestconditions, these slope floor bucketsfeature a well proven, shell-tineconstruction design that resiststwisting and distortion and areexcellent for bank and excavationapplications. Bucket hinges are part ofa structure that extends under the bucket shell to the cutting edge,

forming box sections. These structuresact as protection against impact andtwisting forces. All buckets haveintegral spill plates that prevent rearspillage, keeping material away fromthe linkage. Hardened weld-on rearwear plates protect the bottom of thebucket for greater durability. Bucketside plates are also reinforced in theirlower portion with additional wearplates for longer life.

3 Universal Buckets with Back Grading Edge.In this configuration, an additional full-width box-section profile with a wearedge is welded at the back of the bucketfloor. The bucket base edge and theadditional rear edge are at the samelevel, providing better grading capabilities.This bucket can be fitted with weldedflush mounted adapters and tips stillallowing excellent grading capability.

4 Quick Couplers. They provideunmatched versatility and allow oneoperator with one machine to performa wide variety of tasks, resulting ingreater machine performance and costefficiency. Use the dedicated quickcoupler actuation circuit (optional) toactivate the quick coupler and changemechanical tools without leaving thecab. Having a dedicated circuit alsoleaves the third valve solely to actuatehydraulic tools without the need fordiverter valves.

5 Pallet Forks (PS). Pallet forks are the ideal tools for handling a varietyof materials.

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3

4

4

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Operator ComfortWork Comfortably And Efficiently

� Comfortable operation

� Excellent visibility

� Easy entry and exit

� Low effort steering

Operating Environment. The 938Hprovides operators with a comfortableoperating environment with generousstorage space and excellent visibility.

Seat. The durable seat adjusts 6-waysto accommodate all sized operators.The seat features an automotive stylelumbar support for maximum comfort.The Cat C-500 Series Comfort air-suspension seat is optional as is aheated backrest and seat cushion.

Visibility. The 938H offers excellentvisibility to the front and rear of themachine. Distortion-free flat glassstretches to the floor of the cab forexcellent visibility to the bucket.Wet-arm wipers on both front and backkeep the windows clean in anycondition.

Rear Vision Camera. An optional rearvision camera is available to clearlymonitor movement behind the wheelloader.

Lighting Packages. In addition to thestandard roading lights, optional lightingpackages are available for low-lightapplications. Optional auxiliary halogenor High Intensity Discharge (HID) cablights provide exceptional lighting fornight work. A rotating beacon isavailable as a safety feature.

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Implement Control Pod. The newlyrestyled implement pod providessuperior comfort through the full lengthadjustable armrest. Standard trans-mission F-N-R switch allows operatorsto keep their hand on the implementcontrol levers while making directionalshifts. An optional joystick withintegrated F-N-R switch is available and replaces the lift and tilt levers.

Steering. Caterpillar’s low effort Load-Sensing steering directs power throughthe steering system only when needed.The new hand metering unit andpriority valve provide operators withfull steering and multi-functioncapability at low engine RPM’s. The combined steering column andinstrument panel tilt for maximumoperator comfort.

Controls. Key machine controls areconveniently located within arms reachand allow better efficiency whileminimizing operator fatigue.A variety of machine controls are alsocontained within the Messenger display.By accessing various menus, anoperator can tailor the machine to fitoperating style and application. For multi-shift operations, personalizedsettings for each operator can beestablished and stored for maximumuptime and comfort.

Entry and Exit. A ladder with aggressivetread pattern keeps debris build-up to aminimum. The ladder is at a 5° forwardincline for easy entry and exit.The main cab door opens a full 180°and latches in place to allow safenavigation to the rear of the machine.The right side door opens 10°, orcompletely for secondary exit simplyby pulling a pin. A full-length ladderon the right side facilitates safe exitif needed.

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S•O•SSM Services. Keep minor repairs frombecoming major ones and avoid completefailures. By regularly taking samples fromthe ports provided, your Cat dealer trackswear of components and parts, oilperformance, and oil condition and uses thatdata to predict wear-related problems beforethey happen. Often a simple adjustment orreplacement of a part, based on S•O•Sreports, can keep a small problem fromturning into a major repair – allowing yourmachine to be running when you need it,not waiting in the shop for service. Sampling valves on the 938H allow quickaccess to engine, transmission and hydraulicoils for S•O•S analysis. Oil change intervalsand other services can be optimizedaccording to your work schedule, reducingdowntime and managing expenses.

Brake Wear Indicators. Axles are equippedwith standard brake wear indicators,allowing a technician to easily determinewhen it is necessary to service the brakes.

Sight Gauges. Well-protected, yet easilyvisible sight gauges for the transmission,hydraulic oil and radiator coolant alloweasy daily checks while reducing the risk ofcontaminants entering the systems.

Fuel Priming Pump. An electrical fuelpriming pump is located between the fueltank and the combined water separator/primary fuel filter. The electric primingpump eliminates the need to pre-fill ormanually prime filters after a change, thusreducing contamination and improvinginjector life.

Cat Product Link. With Product Linkcustomers and dealers can remotely obtainmachine diagnostics. The system providesupdates on service meter hours, machinehealth and equipment location.

Ground Level Grease Points. Greasefittings are grouped on the right side ofthe machine in two convenient locationsthus facilitating easy lubrication of vitalcomponents throughout the machine.

ServiceabilityEasy To Maintain – Easy To Service.

� Grouped service points and sightgauges for easy daily maintenance

� Convenient access to enginecompartment for excellentserviceability

� Swing-out grill and cooling coresfor easy cleaning

� Electronic systems to monitor producthealth

New! Multi-Piece Axle. With theintroduction of Caterpillar’s new multi-piece axles, service brakes and finaldrives are located outboard and provideeasy access when service is required.

Autolube. Reduce time spent on dailymaintenance and downtime forunplanned repairs due to inadequategreasing with the optional CaterpillarAutomatic Lubrication System. Preciselubrication of pins and bushings atspecific intervals improves componentwear and reduces ground contaminationfrom excessive greasing.

Hydraulic Service Center. Transmissionand hydraulic oil filters are located inthe Hydraulic Service Center, behindthe hinged, right-side access ladder. The hydraulic oil tank can be drainedfrom this location using the access port.

Electric Service Center. A lockablecompartment located just below theleft side access platform contains keyelectrical components such as the remotejump-start receptacle, battery disconnectswitch, circuit breakers and hoodactuation switch. The maintenance freebatteries are conveniently located underthe Electric Service Center .

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Cooling System. Cooling system accessfor clean-out and maintenanceis outstanding. The perforated andcorrugated grill minimizes debris build-up and swings out for easy cleaningand access to the cooling cores.The full-width air conditioningcondenser and oil cooler cores swingout 45° to allow easy cleaning of therear radiator face. An access panellocated on the right side of the radiatorsupport structure provides access to thefront face of the radiator and ATAACcores for easy cleaning.

Service Capabilities. Cat field servicetechnicians have the experience andtools necessary to service your loaderon site. Field service trucks are fullyloaded with state-of-the-art toolsand diagnostic equipment as well asspecifications and schematics for everyCat machine. Technical experts at thedealership and Caterpillar are availableto provide assistance to field servicetechnicians when needed.

Engine Compartment Access.A single mechanical lift cylinderwith manual back-up opens the hood.The tilting hood provides excellent

With the hood closed, quick checks ofthe engine oil level, coolant site gaugeand air inlet indicator can be completedthrough the side service door.

Ecology Drains. Engine, transmissionand hydraulic oils can be easily drainedwith standard-equipment ecologydrains. An axle oil ecology drain isoptional.

access to the engine and coolingcompartments and if necessary, the entire hood can be removed with the built-in lift points.

Remote Pressure Taps. Pressure taps forkey systems are grouped and centrallylocated throughout the machine andhelp facilitate quick diagnostics.

Electric Priming Pump. An electric fuelpriming pump located on the primaryfuel filter base eliminates the need topre-fill or manually prime filters after a change, eliminating enginecontamination.

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Owning and Operating CostThe 938H – Best Value For Your Operation

� Sight gauges, grouped maintenancepoints, easy engine access, ecologydrains, maintenance-free batteries –all simplify daily maintenance

� Electronic monitoring systems trackproduct health to avoid unscheduledcostly repairs

� Unsurpassed parts availabilityreduces downtime

� Excellent resale value provided bygenuine Cat quality, outstandingdealer service and unmatched dealersupport programs

� Caterpillar Financial Services and Catdealers understand your business

Engine Idle Management System.The Engine Idle Management System(EIMS) maximizes fuel efficiencyand provides flexibility in managingidle speeds for specific applicationrequirements. Four controlled idlespeeds are available.� Hibernate Mode. Idle speed drops

after a preset time to provide lowerfuel consumption, reduced soundlevels and lower emissions.

� Work Mode. Adjustable working idlespeeds according to customerpreference and operating conditions.

� Warm-Up Mode. Keep the engine at aconsistent temperature in coldconditions.

� Low Voltage Mode. Prevent batterydrain due to high electrical loads fromattachments and accessories.

Maintenance. Proper maintenanceof your wheel loader can help controlexpenses and lower your owning andoperating costs. The 938H providesunmatched serviceability by offering:

� Hydraulic service center

� Electric service center

� Airborne debris-resistant, swing-outgrill provides more efficient airflow

� Well-protected, easily visible sightgauges

� Ground level maintenance points

� Easy access to engine compartment

� Ecology drains for simple and cleanfluid drainage

� Brake wear indicators for ease ofinspection

� Maintenance-free batteries

� Extended oil and filter changeintervals

Monitoring Systems. Monitoringproduct health simplifies maintenanceplanning and reduces costs.

Cat Product Link. With Product Linkcustomers and dealers can remotelyobtain machine diagnostics. The systemprovides updates on service meterhours, machine health and equipmentlocation.

Cat Messenger. Messenger offers thecomfort of providing real-time, visualfeedback on engine and machineoperating conditions. It displaysinformation on diagnostic codes,maintenance and system parameters.

Cat EquipmentManager.EquipmentManager uses key indicatorsfrom equipment such as hours, locationand diagnostic codes and combinesthem with powerful tools like mapping,maintenance and repair scheduling aswell as troubleshooting instructions.This application enables quickidentification of actions required tomaximize equipment uptime andcontrol owning and operation costs.

Cat Machine Security System. Stolenequipment equates to lost productionand increased costs. Eliminate machinetheft and unauthorized usage with theCat Machine Security System (MSS).MSS is integrated into the machine’selectronic system and can protect mostbrands of equipment by requiring auniquely coded key to start the machine.

S•O•S Services. Managing componentlife and machine availability decreasesdowntime while improving yourproductivity and efficiency. S•O•SServices can help you do that. Regularfluid sampling is used to track whatis going on inside the equipment.Wear-related problems are predictableand easily and quickly repairable.Maintenance can be done accordingto your schedule, resulting in increaseduptime and flexibility in maintenanceand repair before failure.

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Dealer Support. The Caterpillar globalnetwork of independently-owned dealersis the best in the world at providingsupport to keep your loader up andrunning. Known for parts availabilityand technical expertise, Cat dealersare partners in your business.

Parts Availability. Caterpillarprovides an unsurpassed level ofpersonalized service for your wheelloader. With parts distributioncenters worldwide, most parts can be delivered in 24 hours. Easy accessto parts reduces downtime.

Resale Value. Owning qualityequipment is a very important factor inmaintaining resale value. Cat not onlysupplies quality equipment but alsoprovides product and dealer support tomaintain the reliability and durabilityof your machine.

Customer Support Agreements.A Customer Support Agreement (CSA)is any arrangement between you andyour Cat dealer that helps you loweryour total cost per unit of production.CSAs are flexible, allowing them tobe tailored to your business. They canrange from simple PreventiveMaintenance Kits to sophisticatedTotal Cost Performance Guarantees.Having a CSA with your Cat dealerallows you more time to do what youdo best – run your business.

Caterpillar Equipment TrainingSolutions. A thorough understanding ofmachine systems and a high levelof skill in operation helps achievemaximum efficiency and improvesreturn on investment. CaterpillarEquipment Training Solutions programshelp provide operators with high levelsof proficiency and confidence. Contactyour Cat Dealer for more informationon Caterpillar Equipment TrainingSolutions programs.

Caterpillar Financial ServicesCorporation. Cat Financial understandsyour business, your industry and thechallenges you face. That’s why theycan provide payment plans to fit yourunique needs – and to help you achieveyour goals.

14 938H Wheel Loader specifications

Engine

Cat C6.6 with ACERT Technology

Gross Power 147 kW/200 hp

Net Power at 2100 rpm

ISO 9249 134 kW/182 hp

80/1269/EEC 134 kW/182 hp

Peak Torque (net) at 1400 rpm 840 Nm

Total Torque Rise 38%

Bore 105 mm

Stroke 127 mm

Displacement 6.6 liter

� All engine horsepower (hp) are metricincluding front page.

� EU Stage IIIA compliant� Rating for net power advertised based

on power available when the engineis equipped with alternator, air cleaner,muffler and on-demand hydraulic fandrive at maximum fan speed.

ROPS/FOPS

� Caterpillar cab with integratedRollover Protective Structure (ROPS)is standard in Europe.

� Rollover Protective Structure ROPSmeets ISO 3471:1994 criteria.

� Falling Objects Protective Structure(FOPS) meets ISO 3449:1992 Level II criteria.

Brakes

Meet ISO 3450:1996 standard.

Sound

Operator Sound The dynamic operator sound pressurelevel measured according to ISO6396:1992 is 73 dB(A) for a cab offeredby Caterpillar, when properly installed,maintained and tested with doors andwindows closed.

Exterior Sound The European Union 2000/14/EClabeled exterior sound power level is105 dB(A) for the machines certified to that requirement. For the standard machine configuration,the sound power level is 109 dB(A)measured according to the dynamic testprocedure and conditions specified inISO 6395:1988.

Hydraulic System

Implement System Pump Output 295 l/min

Hydraulic Cycle Times seconds

Raise 5.4

Dump 1.4

Lower, Empty, Float Down 2.7

Total 9.5

� Implement system, (standard) pistonpump (rated at 2100 rpm and 70 bar)

� Cycle times with rated payload

Operating Specifications

Operating Weight 15 500 kg

Static Tipping Load, Full Turn 10 200 kg

Breakout Force 123 kN

Bucket Capacities 2.3 to 3.0 m3

� Operating weight with 2.8 m3 universal bucket and bolt-on cutting edge.

Transmission

Forward km/h

1 8

2 15

3 26

4 43

Reverse

1 8

2 15

3 26

� Maximum travel speeds (20.5 R 25 tires)

Tires

20.5 R 25, L-3 XHA 20.5 R 25, L-3 GP2B 650/65 R 25, L-3 XLD (Low Profile)

In certain applications (such as load and carry)the loader’s productive capabilities mightexceed the tires’ tonnes-km/h capabilities.Caterpillar recommends that you consult a tiresupplier to evaluate all conditions beforeselecting a tire model. Other special tires areavailable on request.

Service Refill Capacities

Liters

Fuel Tank 247

Cooling System 36

Crankcase 17

Transmission 43

Differentials and Final Drives

Front 57

Rear 53

Hydraulic Tank 89

Axles

Front Fixed

Rear Oscillating ± 12°

Maximum Single-Wheel Rise and Fall 420 mm

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7

1 2

3

11

9

15

6

12

8

5

13

10

1614

4

mm mm

2674 0 0 0

2619 +6 -53 -37

2733 0 +519 +36

mm mm kg kg

20.5 R 25, L-3 (XHA)

20.5 R 25, L-3 (GP2B)

650/65 R 25, L-3 (XLD) (Low Profile)

Tire Specifications

1 Height to top of ROPS 3356

2 Height to top of exhaust pipe 3099

3 Height to top of hood 2415

4 Ground clearance with 20.5 R 25, L-3 397

5 Lift arm clearance at maximum lift 3435

6 Bucket hinge pin height 3843

Bucket hinge pin height, optional high lift 4266

7 Overall height – bucket raised 5284

8 Center line of rear axle to edge of counterweight 1869

9 Wheelbase 3020

10 Height to center line of axle 688

11 Center line of rear axle to hitch 1510

12 Rack back at maximum lift 65°

13 Dump angle at maximum lift 50°

14 Rack back at carry 50°

15 Rack back at ground 42°

16 Dump clearance at maximum lift and 45° dump 2771

Width over tiresChange in

vertical dimensionsChange in

operating weightChange in static

tipping load

938H Wheel Loader specifications

DimensionsAll dimensions are approximate

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2.3 2.3 2.5 2.5 2.8 2.8

2.0 2.0 2.1 2.1 2.4 2.4

2700 2777 2700 2777 2700 2777

2889 2786 2849 2744 2771 2664

993 1098 1019 1123 1077 1179

2189 2336 2239 2386 2339 2486

50 50 50 50 50 50

7193 7351 7243 7401 7343 7501

5140 5140 5188 5188 5284 5284

11 946 12 104 11 971 12 131 12 024 12 185

1186 1294 1219 1327 1290 1398

12 193 12 096 12 113 12 016 11 948 11 849

10 640 10 543 10 566 10 468 10 410 10 311

142 141 135 134 123 122

15 339 15 414 15 373 15 448 15 446 15 521

m3

m3

mm

mm

mm

mm

mm

mm

mm

mm

kg

kg

kg

kN

kg

Operation Specifications

Rated bucket capacity

Struck capacity

Width

Dump clearance at full lift and 45° discharge 4

Reach at full lift and 45° discharge 4

Reach with lift arms horizontal and bucket level 4

Digging depth

Overall length 4

Overall height with bucket at full raise

Loader turning radius with bucket in carry position

Static tipping load straight 1

Static tipping load at 37˚ articulation 1

Breakout force 2

Operating weight 1

General Excavation Buckets

Bolt-on Cutting Edge

Bolt-on adapters,Tips and Segments

Bolt-on Cutting Edge

Bolt-on adapters,Tips and Segments

Bolt-on Cutting Edge

Bolt-on adapters,Tips and Segments

Bucket weight

938H Wheel Loader specifications

1 Static tipping load and operating weight shown are based on average machine configuration with sound suppression cab and ROPS, secondary steering, air conditioning, ride control, roading fenders,autolube, back-up alarm, 20.5 R 25, L-3, tires, full fuel tank, coolant, lubricants, lights, directional signals,CE plates and operator.

2 For buckets with adapters, tips and segments, value is measured 100 mm behind the tip of the segment,with bucket hinge pin as pivot point, in accordance with SAE J732C.

3 All buckets shown can be used on the high lift arrangement. High lift column shows changes inspecifications from standard lift to high lift. Add or subtract as indicated to or from specifications given for appropriate bucket to calculate high lift specifications.

Dimensions for dump clearance, reach and overall length:4 Actual dimensions taken at the tip of the Ground Engaging Tools, either the tip of the bolt-on

cutting edge or the tip of the teeth, type long.

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2.6 2.6 2.8 2.8 3.0 3.0

2.2 2.2 2.5 2.5 2.6 2.6

2706 2777 2706 2777 2706 2777

2738 2624 2696 2582 2654 2540 +423

934 1028 976 1070 1019 1113 +112

2279 2426 2339 2486 2399 2546 +381

85 85 85 85 85 85 +58

7312 7470 7372 7530 7432 7590 +482

5022 5022 5081 5081 5141 5141 +423

12 026 12 180 12 058 12 213 12 090 12 245 +517

1334 1475 1380 1521 1429 1570

11 768 11 668 11 676 11 575 11 583 11 481 -2005

10 254 10 154 10 167 10 066 10 078 9977 -1798

130 129 123 122 116 115 -6

15 429 15 506 15 476 15 553 15 524 15 601 +259

same

same

same

same

High Lift 3Universal Buckets

sBolt-on

Cutting EdgeBolt-on adapters, Tips and

SegmentsBolt-on

Cutting EdgeBolt-on adapters, Tips and

SegmentsBolt-on

Cutting EdgeBolt-on adapters, Tips and

Segments12

00

1400

1600

1800

2000

2200

2400

2600

115% 100% 95%

Material Density

Standard High Lift

% = Bucket Fill Factor

1000

1200

1400

1600

1800

2000

2200

Material Density

*Universal 3.0

*Universal 2.8

Universal 2.6

*Excavation 2.8

Excavation 2.5

Excavation 2.3

*Universal 3.0

Universal 2.8

Universal 2.6

Excavation 2.8

Excavation 2.5

Excavation 2.3

* Light material onlym3

kg/m3

m3

kg/m3

Bucket Selection Guide

18 938H Wheel Loader specifications

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

ElectricalAlarm, back-upAlternator (24 V, 65 A)Ignition key start/stop switchLighting System:

Four halogen working lights; two halogen roading lights with signals

Receptacle start (cables not included)Starter, electric (heavy duty)Switch, battery disconnect

Operator EnvironmentBeverage / lunchbox holdersBucket / work tool function lockoutCab ROPS/FOPS, pressurized and

sound suppressedCab heater and defrosterCoat hookControls, lift and tilt functionsElectric horn, dual actuating:

steering wheel and implement podInstrumentation, Gauges:

Engine coolant temperatureFuel levelHydraulic oil temperatureSpeedometer, gear and service meterTachometerTransmission oil temperature

Instrumentation, Warning Indicators:Brake charge pressure lowElectrical system voltage lowEngine oil pressure lowHydraulic oil filter bypassParking brake appliedPrimary steering malfunctionTransmission oil filter bypassLight, dome (cab)Messenger

Mirrors, rearview: internal and externalPower outlets; two 12 V, 5 A includes

cigar lighterRadio ready, includes antenna, speakers

and converter 12 V, 5 ASeat KAB (cloth) with mechanical

suspensionSeat belt, retractable, (50 mm wide)Steering column, tiltingStorage compartmentSun Visor, FrontSwitch, F-N-R (located on implement

pod)Wet-Arm windshield wipers; front and

rear (interval functionality)Window, Sliding (left and right side)

Power TrainAxle oil cooler readyBrakes, full hydraulic enclosed wet-disc

with Integrated Braking System (IBS)Brake wear indicatorsDifferential Lock, Front ManualOpen Differential rearDrive line, extreme serviceEngine, Cat C6.6 with ACERT

Technology and ATAACFan, radiator, electronically driven,

temperature sensing on demandFilters, fuel, primary/secondaryFuel priming pump (electric)Fuel/Water separatorMonitoring System, axle oil

temperatureMuffler, sound suppressedRadiator, unit core with ATAACStarting aid (glow plugs)Torque converterTransmission neutralizer lockoutTransmission, countershaft, automatic

power shift (4F/3R)Variable Shift Control (VSC)

Other Standard EquipmentCounterweightFenders, Extension Platform RearFenders, steel (front and rear)Grill, airbone debrisGuards (bottom crankcase and

fuel tank)Hitch, drawbar with pinHood,1-piece, non-metallic power

tiltingHoses, Caterpillar XTHydraulics, Load-SensingKickout, lift, adjustableKickout, tilt, adjustableLinkage, Z-Bar, crosstube/tilt leverOil sampling valvesRemote Diagnostic Pressure TapsSight Gauges: Engine coolant, hydraulic

oil and transmission oil levelSteering, Load-SensingVandalism protection caplocks

Tires, Rims, WheelsA tire must be selected from themandatory attachments section. Basemachine price includes an allowancebased on a premium brand tire.

AntifreezePremixed 50% concentration extendedlife coolant; freeze protection to -35 °C.

19938H Wheel Loader specifications

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

Antifreeze, –50 °CAutolubeBuckets and work toolsBucket Ground Engaging Tools – see

Cat dealer for detailsCamera, rear viewCooler, axle oilDifferential Lock, automatic front and

rearDrain, axle ecologyEther Starting AidFenders, roadingGuards, axle sealGuard, front window, wide meshGuard, power train bolt-onGuard, power train hingedGuard, hitch areaGuard, front driveshaftGuard, roading light, front and rearGuard, tilt cylinderGuard, transmission oil fillHeater, engine coolant, 120 or 230 VHigh Lift, three-valveHigh Lift, three-valve with hydraulic

horizontal pin quick coupler

Hydraulics, three or four-valveJoystick control, two, three or

four valveLadder, cableLights, auxiliary cab lightsLights, high intensity discharge (HID)Light, rotating beaconMachine Security SystemMirrors, heated externalOpen canopyPrecleaner , turbinePrecleaner , turbine/trashQuick Coupler, hydraulic horizontal pinQuick Coupler ready linesRadio, AM/FM CD playerRide ControlSeat, air suspensionSeat, heated air suspensionSeatbelt, 75 mm wideSeatbelt, 75 mm wide (KAB)Steering, secondarySunscreen, rearToolbox

Regional Package EuropeCertified 2000/14/EC Sound Powerrequired for EEC and EFTA applications– Conversion CE (Secondary Steering,

Sound Suppression)– Powertrain Guard, Bolt-on– Front fenders, flat design – Product Link– Air Conditioning

Regional package AME/CIS– Powertrain Guard, Bolt-on – Precleaner, Turbine – Front fenders, flat design – Air Conditioning – Cooling, High Ambient

®

HEHL3821 (06/2008) hr

938H Wheel Loader

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

Materials and specifications are subject to change without notice. Featured machines in photos may include additional equipment. See your Caterpillar dealer for available options.

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CAT, CATERPILLAR, 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.