938H

EngineEngine Model Cat 6.6 ACERTNet Power SAE J1349 128 kW 172 hpNet Power ISO 9249 134 kW 180 hp

Caterpillar engine with ACERT Technology EPA Tier III, EU Stage III Compliant.

BucketsBucket Capacities 2.3 - 3.0 m3 3.0 - 4.0 yd3

WeightsOperating Weight 15 059 kg 33,190 lb

For 2.8 m3 (3.65 yd3) general purpose bucket withstandard 20.5-R25 tires.

Operating SpecificationsStatic Tipping Load, Full Turn 10 076 kg 22,207 lb

For 2.8 m3 (3.65 yd3) general purpose bucket withstandard 20.5-R25 tires.

938HWheel Loader

2938H Wheel LoaderSetting the standard for wheel loader productivity, durability, versatility and comfort.

OPERATOR COMFORT

Easy Entry and Exit

Excellent Visibility

Adjustable Machine Parameters toMatch Operator Preference pg. 14

PRODUCTIVITY

Improved Cycle Times with Load-Sensing Hydraulic System

Locking Differentials ProvideSuperior Tractive Effort in PoorUnderfoot Conditions

Constant Net Horsepower Throughthe Operating Range pg. 8

DURABILITY

ACERT Technology MaintainsPerformance, Efficiency and DurabilityWhile Meeting Emissions Regulations

Heavy Duty Components Stand Up toAll Operating Conditions

Strong, Solid Structures Built to Lastpg. 6

RELIABILITY

Proven Components and Technology

Diagnostic Systems Monitor ProductHealth to Ensure Reliability

Unmatched Parts Availability andDealer Support pg. 4

New Feature

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SERVICEABILITY

Service Centers for ConvenientMaintenance

Exceptional Ground-Level Accessto Service Points

Monitoring Systems and DealerSupport Reduce UnexpectedDowntime pg. 12

OWNING AND OPERATING COSTS

Superior Maintenance

Electronic Systems Monitor ProductHealth and Performance

Complete Dealer Support pg. 10

VERSATILITY

Special Machine Arrangements forUnique Applications

Large Variety of Cat Work Toolspg. 9

Validated components andtechnology

Electronic systems monitor vitalmachine components

Excellent uptime from the bestdealer support network in theindustry

Unmatched genuine Cat partsavailability

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

Frames

Axles

Countershaft powershifttransmission

Individual component coolingsystem

Cab

ACERT TECHNOLOGY. Since March2003, ACERT Technology has beenproving itself 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.

CATERPILLAR DESIGNED COMPONENTS.Components used to build Cat WheelLoaders are designed and manufacturedto Caterpillar quality standards toensure maximum performance evenin extreme operating conditions.

Engine electronic control modules andsensors are completely sealed againstmoisture and dust. Deutsche connectorsand electrical wire braiding ensure thatelectrical connections resist corrosionand premature wear.

Hoses are engineered and manufacturedfor high resistance to abrasion, excellentflexibility and easy installation andreplacement.

Caterpillar couplings use o-ring faceseals to provide positive sealing fordurable leak-free connections.

Heavy duty components reduce the riskof leaks, corrosion and premature wear,increasing uptime and helping to protectthe environment.

MONITORING PROGRAMS. Monitoringproduct health is key to maintainingreliability of any equipment. Manyprograms are available on the 938Hto help you track machine health.

Caterpillar Messenger Display.The 938H is equipped with theCaterpillar Messenger Display thatkeeps watch over the health of yourloader while providing real-timediagnostic feedback. In the event ofa system malfunction, Messenger willprovide the operator with a descriptionof the occurrence, and if serious enough,sound an audible alarm in addition toa flashing indicator light.

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The Cat 938H Tested and Proven Ready to WorkRELIABILITY

Product Link. Standard equipment onthe 938H, this state-of-the art satellitetechnology enables Caterpillar dealersand customers to keep in touch withtheir machines. The system providesa two-way information flow betweenmachine on-board systems and Caterpillardealers/customers via the Cat DealerWebsite and EquipmentManager.

EquipmentManager. EquipmentManageris a web-based application that uses keyindicators from your equipment suchas hours, location and diagnostic codesand combines it with powerful toolslike mapping, maintenance and repairscheduling, and troubleshootinginstructions. This application enablesquick identification of actions requiredto maximize your equipment uptimeand control owning and operating costs.

SOSSM Services. Keep minor repairsfrom becoming major ones and avoidcomplete failures. By regularly takingsamples from the ports provided, yourCat dealer tracks wear of componentsand parts, oil performance, and oilcondition and uses that data to predictwear-related problems before theyhappen. Often a simple adjustment orreplacement of a part, based on SOSreports, can keep a small problem fromturning into a major repair allowingyour machine to be running whenyou need it, not waiting in the shopfor service.

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.

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.

When on-site repair isnt enough,Cat dealerships are fully-equippedto service your loader quickly.

Parts Availability. Caterpillar providesan unsurpassed level of personalizedservice for your wheel loader. With partsdistribution centers throughout the world,most parts can be delivered in 24 hours.

Remanufactured Parts. Cat enginesand major components are designed tobe remanufactured and provide multiplelife cycles. The Cat Reman programis more extensive than most rebuildprograms. Components are actuallyremanufactured in the factory tooriginal specifications with necessaryproduct updates.

Strict reuse guidelines and unparalleledquality control ensure that reman productsprovide the reliability and durabilitythat you expect from Caterpillar. Remanproducts are stocked in distributioncenters around the world and are readyto install to minimize downtime,maintain productivity and profitability.

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ACERT Technology maintainsengine performance, efficiency anddurability while reducing emissions

Heavy duty components withstandall operating conditions

Strong, solid structures are builtto last

Cat C6.6 ACERT. The Cat C6.6 is a6.6 liter (403 in3) displacement, in-linesix cylinder engine. The C6.6 utilizesACERT Technology, a series ofCaterpillar engineered innovations thatprovides advanced electronic control,precise fuel delivery and refined airmanagement, resulting in outstandingperformance and 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 proven cylinderblock, pistons and crankshaft.

Electronic Control ADEM A4.The Advanced Diesel EngineManagement Electronic ControlModule consistently monitors importantengine conditions and functions. It usessensors throughout the engine to regulatefuel delivery and all other engine systemsthat require input to manage load andperformance. The ADEM A4 controlleris the brain behind engine responsiveness,self-diagnosis, controlling emissionsand fuel 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.

Fuel Priming Pump. An electrical fuelpriming pump is located between thefuel tank and the combined waterseparator/primary fuel filter. The electricpriming pump eliminates the need topre-fill or manually prime filters aftera change, thus reducing contaminationand improving injector life.Engine Idle Management. The EngineIdle Management System (EIMS)maximizes fuel efficiency and providesflexibility in managing idle speedsfor specific application requirements.Four idle control speeds are available.

POWERSHIFT TRANSMISSION.The 938H continues to use powershifttransmission technology proven onprevious series. The countershaftpowershift transmission features heavy-duty components to handle the toughestapplications. Built-in electronic controlsenhance productivity and durability.

Control Throttle Shifting. Control ThrottleShifting regulates engine speed duringhigh-energy directional and gear changesfor 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 12oscillation. All four wheels remain onthe ground over uneven terrain providingexcellent stability and traction.

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Built Strong and ToughDURABILITY

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.

RADIATOR. Brazed aluminumconstruction provides a stronger jointfor maximum durability and resistanceto leaks. The 6-fins-per-inch designdecreases the chance of blockageand plugging.

STRUCTURES. The articulated framedesign of the 938H features a durableplate engine frame and two plate loadertower that is robotically welded.Robotic welding creates frame jointswith deep plate penetration welds andexcellent fusion for maximum strengthand durability.

Engine End Frame (EEF). The 938H usesa proven solid plate engine end framewhich provides a strong, rigid structurethat resists twisting and evenly distributesimpact loads. The result is an extremelysolid mounting platform for the engine,transmission, axle, ROPS and otheraccessories.

Hitch. The distance between the upperand lower hitch plates is an importantcontributor to machine performanceand component life. The Caterpillarhitch design provides excellent loaddistribution and bearing life. Both theupper and lower hitch pins pivot ondouble tapered roller bearings improving durability by distributingboth vertical and horizontal loads overa larger surface area. The wide openingalso provides excellent service access.

Non-Engine End Frame (NEEF).The non-engine end frame provides asolid mounting base for the front axle,lift arms, lift cylinders and tilt cylinder.The fabricated, two-plate loader towerdesign reduces material packing underthe lift cylinders while absorbing theforces associated with loading, twistingand material handling.

Counterweight. The two-piececounterweight is integrated into the938H design and provides addedprotection for the lights by incorporatingthem into the top of the structure.

Linkage. The 938H linkage is a single-tilt Z-bar design. Z-bar linkage generatesexcellent breakout force and good rackback angle for better bucket loadingand load retention.

Lift arms are solid steel, providingsuperior strength with an excellent frontend viewing area. The proven designoffers excellent dump clearanceand reach.

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Hydraulics are easy to control withlow effort

Differential locks provide maximumtraction in varying underfootconditions

Constant net horsepower acrossvarious applications

Standard and optional features thatmaximize productivity

LOAD SENSING HYDRAULICS. The 938Hfeatures a load sensing hydraulic systemthat supplies flow and pressure for theimplements only upon demand, and onlyin the amounts necessary to perform theneeded work thus providing a moreefficient loader.

With the new S3PC Priority ProportionalPressure Compensation Valve, implementcontrol is improved over the previoussystem raise/lower and rack back/dumpcan be operated simultaneously.

Operators will notice enhanced easeof operation, more rimpull into the pileand a 16% increase in lift force.

NEW! DIFFERENTIAL LOCK. Maximizeproductivity with the new hydrauliclocking front differential. This standardfeature provides operators with theconfidence to maneuver through poorunderfoot conditions with on the flyengagement.

A Caterpillar exclusive, the optionalautomatic front/rear locking differentialcollects input from sensors throughoutthe loader and adapts tractive effortto meet operating requirements.

CONSTANT NET HORSEPOWER.On many competitive machines, grosshorsepower is constant, meaning thatnet engine power available for actualwork will vary based on demands madefrom 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.

On-Demand Fan. With electronic controlof the variable speed on-demand fan,temperature levels of the engine coolant,transmission oil, hydraulic oil and airinlet manifold are constantly monitored.This data is used to control and maintainfan speed at the level necessary tomaintain normal system temperatures.Controlled fan speed improves fuelefficiency, lowers noise levels andreduces radiator plugging.

Isolated Cooling System. The 938Hcooling system is isolated from theengine compartment by a non-metallicshield. The hydraulically driven, variablespeed fan draws in clean air from therear of the machine and exhausts it outthe sides and top of the hood. The endresults are optimal cooling efficiency,increased fuel efficiency, less radiatorplugging and reduced operator soundlevels.

COUNTERSHAFT POWERSHIFTTRANSMISSION. The electroniccountershaft powershift transmissionwith automatic shift capability isdesigned and built by Caterpillar.The very responsive, full-power speedand directional changes provide excellentcycle times and productivity.

Fuel Economy Mode. Match transmissionshifting patterns to machine applicationrequirements. The Fuel Economy Mode(within Messenger) provides operatorswith the ability to choose between threedifferent shift modes in order to maximizeshift quality and fuel efficiency.

RIDE CONTROL. The optional RideControl System improves ride,performance and load retention whentraveling over rough terrain. Operatorsgain confidence moving at higherspeeds in load and carry operationsdecreasing cycle times and increasingproductivity.

AUTOLUBE. The optional CaterpillarAutolube System provides precise,automatic lubrication of pins andbushings during loader operation.Automatic lubrication reduces time spenton daily maintenance and downtime forunplanned repairs due to inadequategreasing improving productivity.

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PRODUCTIVITYWork Smart and Move More

A variety of buckets and work toolsfor many applications

WORK TOOLS AND QUICK COUPLERS.A variety of buckets, work tools andcouplers are available from the factoryor from your Caterpillar dealer tocustomize the 938H for your operation.

Quick Couplers. Quick couplers provideunmatched versatility for wheel loaders.Buckets and work tools can be changedin seconds without leaving the cab formaximum productivity.

General Purpose Buckets. GeneralPurpose Buckets provide good all-aroundperformance for stockpiling, rehandling,excavating and bank loading. A heavyduty General Purpose Bucket can beused for more aggressive applications.

Material Handling Buckets. The MaterialHandling Bucket is a flat-floor bucketused for handling stockpiled materialssuch as aggregates or other easy-to-loadmaterials requiring moderate breakoutforce.

Coal Buckets. Coal Buckets maximizeproductivity in loading and stockpilingcoal and other materials of similardensity.

Waste Buckets. Waste Buckets aredesigned for long life in the harsh worldof refuse applications. This high-capacitybucket is well-suited for loading, sortingand other transfer station work.

Woodchip and Clean-Up Buckets.Woodchip and Clean-up Buckets areavailable for forestry and millyardapplications.

Multi-Purpose Buckets. Multi-PurposeBuckets have a unique four-way actionthat can load, strip topsoil, bulldoze,clamp pipe or large chunks of concrete,clean up debris, and many other tasks.

Side Dump Buckets. Side DumpBuckets dump both to the front and tothe side of the machine, an advantagewhen working in tight quarters, suchas street work, tunnel constructionand building levees.

Forks. Logging, Millyard and PalletForks are available for forestry andmaterial handling applications.

Loader Rakes. Loader Rakes aredurable, high-capacity tools for landclearing and site clean up. Rakes areavailable with or without top clampsand in quick coupler and pin-on models.

Material Handling Arms. MaterialHandling Arms move pipe, concreteblocks, highway dividers and otherconstruction materials quickly andprecisely.

Ground Engaging Tools (GET).Several GET options are available fromCaterpillar for 938H buckets. Reversiblebolt on cutting edges (BOCE) as wellas bolt on teeth and segments providemaximum performance in variousmaterials.

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VERSATILITYBuilt 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 andCat dealers 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 idle controlspeeds are available.

Hibernate Mode. Idle speed drops aftera preset time to provide lower fuelconsumption, reduced sound levelsand lower emissions.

Work Mode. Adjustable working idlespeeds according to customer preferenceand operating conditions.

Warm-Up Mode. Keep the engine at aconsistent temperature in cold conditions.

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.

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

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

EquipmentManager. EquipmentManageruses key indicators from equipment suchas hours, location and diagnostic codesand combines them with powerful toolslike mapping, maintenance and repairscheduling as well as troubleshootinginstructions. This application enablesquick identification of actions requiredto maximize equipment uptime andcontrol owning and operation costs.

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 machineselectronic system and can protect mostbrands of equipment by requiring auniquely coded key to start the machine.

SOS Services. Managing componentlife and machine availability decreasesdowntime while improving yourproductivity and efficiency. SOSServices 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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The 938H Best Value for Your OperationOWNING AND OPERATING COSTS

PARTS AVAILABILITY. Caterpillarprovides an unsurpassed level ofpersonalized service for your wheelloader. With parts distribution centersworldwide, most parts can be deliveredin 24 hours. Easy access to partsreduces 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 and yourCat dealer that helps you lower yourtotal cost per unit of production. CSAsare flexible, allowing them to be tailoredto your business. They can range fromsimple Preventive Maintenance Kits tosophisticated Total Cost PerformanceGuarantees. Having a CSA with yourCat dealer allows you more time to dowhat you do best run your business.

CATERPILLAR EQUIPMENT TRAININGSOLUTIONS. A thorough understandingof machine systems and a high levelof skill in operation helps achievemaximum efficiency and improves returnon investment. Caterpillar EquipmentTraining Solutions programs helpprovide operators with high levels ofproficiency and confidence. Contact yourCat Dealer for more information onCaterpillar Equipment TrainingSolutions programs.

CATERPILLAR FINANCIAL SERVICESCORPORATION. Cat Financial understandsyour business, your industry and thechallenges you face. Thats why theycan provide payment plans to fit yourunique needs and to help you achieveyour goals.

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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 monitorproduct health

HYDRAULIC SERVICE CENTER.Transmission and hydraulic oil filtersare located in the Hydraulic ServiceCenter, behind the hinged, right-sideaccess ladder. The hydraulic oil tankcan be drained from this locationusing 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.

NEW! MULTI-PIECE AXLE. With theintroduction of Caterpillars new multi-piece axles, service brakes and finaldrives are located outboard and provideeasy access when service is required.

GROUND LEVEL GREASE POINTS.Grease fittings are grouped on the rightside of the machine in two convenientlocations thus facilitating easy lubricationof vital components throughout themachine.

AUTOLUBE. Reduce time spent on dailymaintenance and downtime for unplannedrepairs due to inadequate greasing withthe optional Caterpillar AutomaticLubrication System. Precise lubricationof pins and bushings at specific intervalsimproves component wear and reducesground contamination from excessivegreasing.

SOS SERVICES. Sampling valves onthe 938H allow quick access to engine,transmission and hydraulic oils forSOS analysis. Oil change intervalsand other services can be optimizedaccording to your work schedule,reducing downtime and managingexpenses.

REMOTE PRESSURE TAPS. Pressure tapsfor key systems are grouped and centrallylocated throughout the machine andhelp facilitate quick diagnostics.

BRAKE WEAR INDICATORS. Axles areequipped with standard brake wearindicators, allowing a technician toeasily determine when it is necessaryto service the brakes.

SIGHT GAUGES. Well-protected,yet easily visible sight gauges for thetransmission, hydraulic oil and radiatorcoolant allow easy daily checks whilereducing the risk of contaminantsentering the systems.

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Easy to Maintain Easy to ServiceSERVICEABILITY

ENGINE COMPARTMENT ACCESS.

A single mechanical lift cylinderwith manual back-up opens the hood.The tilting hood provides excellentaccess to the engine and coolingcompartments and if necessary, theentire hood can be removed withthe built-in lift points.

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 ecology drains.An axle oil ecology drain is optional.

ELECTRIC PRIMING PUMP. An electricfuel priming pump located on the primaryfuel filter base eliminates the need topre-fill or manually prime filters after achange, eliminating engine contamination.

COOLING SYSTEM. Cooling systemaccess for 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 conditioning condenserand oil cooler cores swing out 45 toallow easy cleaning of the rear radiatorface. An access panel located on theright side of the radiator support structureprovides access to the front face of theradiator and ATAAC cores for easycleaning.

COMPLETE CUSTOMER SUPPORT.Cat field service technicians have theexperience and tools necessary toservice your loader on site. Technicalexperts at the dealership and Caterpillarcan provide additional assistance tofield service technicians as needed.

When on-site repair isnt enough, Catdealerships are fully equipped to serviceyour loader quickly.

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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.

Implement Pod. The newly restyledimplement pod provides superior comfortthrough the full length adjustablearmrest. Standard transmission F-N-Rswitch allows operators to keep theirhand on the implement control leverswhile making directional shifts.An optional joystick with integratedF-N-R switch is available and replacesthe lift and tilt levers.

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 any condition.

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.

ENTRY AND EXIT. A ladder withaggressive tread pattern keeps debrisbuild-up to a minimum. The ladder isat a 5 forward incline for easy entryand exit.

The main cab door opens a full 180 andlatches in place to allow safe navigationto 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.

Steering. Caterpillars low effort loadsensing steering directs power throughthe steering system only when needed.The new hand metering unit and priorityvalve provide operators with fullsteering and multi-function capabilitya low engine RPMs. The combinedsteering column and instrument paneltilt for maximum operator 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, an operatorcan tailor the machine to fit operatingstyle and application. For multi-shiftoperations, personalized settings foreach operator can be established andstored for maximum uptime and comfort.

SAFETY.CAT.COM.

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OPERATOR COMFORTWork Comfortably and Efficiently

15938H Wheel Loader specifications

Transmission

Forward 1 8.1 km/h 5 mphForward 2 14.6 km/h 9.1 mphForward 3 25.5 km/h 15.8 mphForward 4 43.2 km/h 26.8 mphReverse 1 8.1 km/h 5 mphReverse 2 14.6 km/h 9.1 mphReverse 3 25.5 km/h 15.8 mph

Maximum travel speeds with empty bucket and 20.5-R25 tires.

Hydraulic System

Steering System Pump Type PistonHydraulic Cycle Time Raise 5.4 SecondsHydraulic Cycle Time Dump 1.4 SecondsHydraulic Cycle Time Lower, 2.7 SecondsEmpty, Float DownHydraulic Cycle Time Total 9.5 SecondsPilot System Pump Output 295 L/min 77.9 gal/min

Implement System (Standard), Piston Pump Rated at2,100 rpm and 1,000 psi (6900 kPa).

Cycle time with rated payload.

Brakes

Brakes Meets requiredstandards

Meet OSHA, SAE J1473 Oct90 and ISO 3450-1985 standards.

Axles

Front Fixed frontRear Oscillating 12Maximum Single-Wheel 420 mm 17 inRise and Fall

Engine

Engine Model Cat 6.6 ACERTGross Power SAE J1995 147 kW 197 hpNet Power ISO 9249 134 kW 180 hpNet Power SAE J1349 128 kW 172 hpNet Power 80/1269/EEC 134 kW 180 hpPeak Torque (Net) @ 1,400 rpm 840 Nm 620 ft-lbTotal Torque Rise 38 %Bore 105 mm 4.1 inStroke 127 mm 5 inDisplacement 6.6 L 402.8 in3

Caterpillar engine with ACERT Technology EPA Tier III,EU Stage III Compliant.

These ratings apply at 2,100 rpm when tested under thespecified standard conditions.

Rating for net power advertised based on power availablewhen the engine is equipped with alternator, air cleaner,muffler and on-demand hydraulic fan drive at maximumfan speed.

Weights

Operating Weight 15 059 kg 33,190 lb

For 2.8 m3 (3.65 yd3) general purpose bucket with standard20.5-R25 tires.

Buckets

Bucket Capacities 2.3 - 3.0 m3 3.0 - 4.0 yd3

Max Bucket Capacity 3 m3 4 yd3

Operating Specifications

Static Tipping Load, Full Turn 10 076 kg 22,207 lbBreakout Force 123 kN 27,576 lb

For 2.8 m3 (3.65 yd3) general purpose bucket with standard20.5-R25 tires.

16 938H Wheel Loader specifications

Service Refill Capacities

Fuel Tank Standard 247 L 65.3 galCooling System 36 L 9.5 galCrankcase 17.4 L 4.6 galTransmission 43 L 11.4 galDifferentials and Final Drives 57 L 15.1 gal FrontDifferentials and Final Drives 53 L 14 gal RearHydraulic Tank 89 L 23.5 gal

Tires

Tires Choose from a varietyof tires to match yourapplication.

Choice of:

20.5R25 XTLA L2 Radial

20.5R25 XHA L3 Radial

20.5R25 GP2B L3 Radial

20.5R25 HRL L3 Radial

20.5R25 RL-2+ L3 Radial

650/65R-25 XLD L3 Radial (Low Profile)

20.5-25 SRG LD L3 Bias (16 PLY)

20.5-25 SRG LD L3 Bias (20 PLY)

20.5-25 RM 99 L3 Bias

NOTE: In certain applications (such as load and carry)the loaders productive capabilities might exceed the tirestonnes-km/h (ton-mph) capabilities. Caterpillar recommendsthat you consult a tire supplier to evaluate all conditionsbefore selecting a tire model. Other special tires areavailable on request.

Cab

ROPS/FOPS Meets SAE andISO standards

Caterpillar cab with Integrated Rollover Protective Structure(ROPS) is standard in North America and Europe.

ROPS meets SAE J1040 APR88 and ISO 3471:1994 criteria.

Falling Objects Protective Structure (FOPS) meets SAE J231Jan81 and ISO 3449:1992 Level II criteria.

The operator sound pressure level measured accordingto the procedures specified in ISO 6394:1998 is 75 dB(A) forthe cab offered by Caterpillar when properly installed andmaintained and tested with the doors and windows closed.

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

The sound power level is 108 dB(A) measured accordingto the dynamic test procedure and conditions specified inISO 6395:1998 for a standard machine configuration.


2.30 2.30 2.10 2.50 2.50 2.303.00 3.00 2.75 3.25 3.25 3.001.97 1.97 1.87 2.11 2.11 2.012.58 2.58 2.45 2.76 2.76 2.632700 2777 2777 2700 2777 27778'10" 9'1" 9'1" 8'10" 9'1" 9'1"2890 2786 2786 2849 2744 27449'5" 9'1" 9'1" 9'4" 9'0" 9'0"993 1098 1098 1019 1123 11233'3" 3'7" 3'7" 3'4" 3'8" 3'8"2189 2336 2336 2239 2386 23867'2" 7'7" 7'7" 7'4" 7'9" 7'9"50 50 25 50 50 251.9 1.9 0.9 1.9 1.9 0.97193 7351 7351 7243 7401 740123'7" 24'1" 24'1" 23'9" 24'3" 24'3"5140 5140 5140 5188 5188 518816'10" 16'10" 16'10" 17'0" 17'0" 17'0"11 946 12 105 12 105 11 971 12 131 12 13139'2" 39'8" 39'8" 39'3" 39'9" 39'9"11 834 11 737 11 959 11 755 11 658 11 87826,081 25,867 26,357 25,909 25,694 26,17910 302 10 205 10 415 10 229 10 131 10 33922,706 22,492 22,954 22,544 22,329 22,787141.9 141.1 152.7 134.9 134.2 144.731,877 31,703 34,297 30,317 30,143 32,50814 952 15 027 14 932 14 986 15 061 14 96632,955 33,120 32,911 33,028 33,194 32,9841508 1563 1563 1516 1567 15674'11" 5'1" 5'1" 4'11" 5'1" 5'1"2821 2706 2706 2786 2671 26719'3" 8'10" 8'10" 9'1" 8'9" 8'9"51.2 51.2 51.2 50.5 50.5 50.5

Rated capacity

Struck capacity

Width

Dump clearance at full lift and 45 discharge

Reach at full lift and 45 discharge

Reach with lift arms horizontal and bucket level

Digging depth

Overall length

Overall height with bucket at full raise

Loader clearance circle with bucket in carry position

Static tipping load, straight

Static tipping load, articulated at full 40 turn

Breakout force

Operating weight

Reach at 2134 mm (7'0") height, 45 dumped

Clearance at full raise and dump, on stops

Dump angle at full raise and dump, on stops

m3

yd3

m3

yd3

mm

ft/inmm

ft/inmm

ft/inmm

ft/inmm

inmm

ft/inmm

ft/inmm

ft/inkglbkglb

kNlbkglb

mm

ft/inmm

ft/indegrees

Operation Specifications

General Purpose Buckets

Bolt-onedges

Teethandsegments Teeth

Bolt-onedges


1400

2,250 2,500 2,750 3,000 3,250 3,500 3,750 4,000 lb/yd3

yd3 m3kg/m3

3.00

3.25

3.65

4.00

2.3

2.5

2.8

3.0

1600 1800 2000 2200 2400

Pin-On Bucket Selection Guide

Material Density

% = Bucket Fill Factor

115% 100% 95%

3.65

GP

GP

GP

GP

MH 2.8


2.80 2.80 2.70 3.00 3.00 2.85 2.80 2.80 2.70 2.40 2.40 2.303.65 3.65 3.50 4.00 4.00 2.75 3.65 3.65 3.50 3.15 3.15 3.002.41 2.41 2.30 2.66 2.66 2.55 2.42 2.42 2.32 2.02 2.02 1.923.15 3.15 3.01 3.48 3.48 3.34 3.17 3.17 3.03 2.64 2.64 2.512700 2777 2777 2700 2777 2777 2700 2777 2777 2700 2777 27778'10" 9'1" 9'1" 8'10" 9'1" 9'1" 8'10" 9'1" 9'1" 8'10" 9'1" 9'1"2771 2664 2664 2702 2597 2597 2720 2607 2607 2774 2669 26699'1" 8'8" 8'8" 8'10" 8'6" 8'6" 8'11" 8'6" 8'6" 9'1" 8'9" 8'9"1077 1179 1179 1102 1206 1206 1001 1096 1096 1017 1120 11203'6" 3'10" 3'10" 3'7" 3'11" 3'11" 3'3" 3'7" 3'7" 3'4" 3'8" 3'8"2339 2486 2486 2397 2544 2544 2339 2486 2486 2285 2432 24327'8" 8'1" 8'1" 7'10" 8'4" 8'4" 7'8" 8'1" 8'1" 7'5" 7'11" 7'11"50 50 25 110 110 85 50 50 25 109 109 841.9 1.9 0.9 4.3 4.3 3.3 1.9 1.9 0.9 4.3 4.3 3.37343 7501 7501 7450 7608 7608 7343 7502 7502 7337 7496 749624'1" 24'7" 24'7" 24'5" 24'11" 24'11" 24'1" 24'7" 24'7" 24'0" 24'7" 24'7"5284 5284 5284 5195 5195 5195 5272 5272 5272 5075 5075 507517'4" 17'4" 17'4" 17'0" 17'0" 17'0" 17'3" 17'3" 17'3" 16'7" 16'7" 16'7"12 024 12 185 12 185 12 106 12 267 12 267 12 024 12 185 12 185 12 009 12 165 12 16539'5" 39'11" 39'11" 39'8" 40'2" 40'2" 39'5" 39'11" 39'11" 39'4" 39'10" 39'10"11 593 11 494 11 711 11 488 11 388 11 602 11 514 11 416 11 627 11 655 11 558 11 77325,551 25,333 25,811 25,320 25,100 25,571 25,376 25,160 25,625 25,688 25,474 25,94710 076 9977 10 182 10 000 9901 10 103 10 008 9909 10 109 10 122 10 025 10 22822,207 21,989 22,441 22,041 21,821 22,267 22,057 21,841 22,281 22,310 22,095 22,543122.7 122.0 130.8 117.2 116.3 124.5 122.7 122.0 130.8 129.4 128.5 138.227,576 27,402 29,395 26,320 26,133 27,959 27,576 27,402 29,394 29,063 28,875 31,06015 059 15 134 15 039 14 898 14 973 14 878 15 048 15 123 15 028 15 165 15 240 15 14533,190 33,355 33,146 32,835 33,000 32,791 33,165 33,331 33,121 33,424 33,589 33,3791535 1579 1579 1523 1566 1566 1433 1462 1462 1477 1523 15235'0" 5'2" 5'2" 4'11" 5'1" 5'1" 4'8" 4'9" 4'9" 4'10" 4'11" 4'11"2714 2599 2599 2631 2516 2516 2714 2599 2599 2710 2596 25968'10" 8'6" 8'6" 8'7" 8'3" 8'3" 8'10" 8'6" 8'6" 8'10" 8'6" 8'6"49.5 49.5 49.5 50.5 50.5 50.5 45.5 45.5 45.5 50.6 50.6 50.6

Material Handling Buckets General Purpose Buckets Quick Coupler

Bolt-onedges


Bolt-onedges


Bolt-onedges


Bolt-onedges



2.70 2.70 2.60 2.80 2.80 2.70 4.253.50 3.50 3.40 3.65 3.65 3.50 5.502.35 2.35 2.25 2.46 2.46 2.36 3.733.07 3.07 2.94 3.22 3.22 3.09 4.882700 2777 2777 2700 2777 2777 27388'10" 9'1" 9'1" 8'10" 9'1" 9'1" 8'11"2708 2603 2603 2681 2575 2575 25018'10" 8'6" 8'6" 8'9" 8'5" 8'5" 8'2"1077 1180 1180 1106 1210 1210 11423'6" 3'10" 3'10" 3'7" 3'11" 3'11" 3'8"2374 2521 2521 2414 2561 2561 25947'9" 8'3" 8'3" 7'11" 8'4" 8'4" 8'6"122 122 97 124 124 99 1064.7 4.7 3.8 4.8 4.8 3.8 4.17436 7594 7594 7478 7636 7636 764324'4" 24'10" 24'10" 24'6" 25'0" 25'0" 25'0"5149 5149 5149 5149 5149 5149 554116'10" 16'10" 16'10" 16'10" 16'10" 16'10" 18'2"12 063 12 219 12 219 12 085 12 242 12 242 12 24439'6" 40'1" 40'1" 39'7" 40'1" 40'1" 40'2"11 400 11 302 11 513 11 455 11 356 11 566 991025,126 24,909 25,375 25,246 25,028 25,493 21,8419879 9780 9980 9937 9838 10 038 852621,773 21,556 21,996 21,901 21,682 22,123 18,792118.9 118.0 126.4 115.2 114.4 122.3 95.826,702 26,512 28,394 25,891 25,700 27,478 21,51215 326 15 401 15 306 15 227 15 302 15 207 15 72533,779 33,944 33,734 33,560 33,725 33,516 34,6571501 1544 1544 1516 1557 1557 14414'11" 5'0" 5'0" 4'11" 5'1" 5'1" 4'8"2640 2525 2525 2610 2495 2495 24938'7" 8'3" 8'3" 8'6" 8'2" 8'2" 8'2"50.5 50.5 50.5 50.5 50.5 50.5 45.5

Rated capacity

Struck capacity

Width

Dump clearance at full lift and 45 discharge

Reach at full lift and 45 discharge

Reach with lift arms horizontal and bucket levelDigging depth

Overall length

Overall height with bucket at full raise

Loader clearance circle with bucketin carry positionStatic tipping load, straight

Static tipping load, articulated at full 40 turn

Breakout force

Operating weight

Reach at 2134 mm (7'0") height, 45 dumped

Clearance at full raise and dump, on stops

Dump angle at full raise and dump, on stops

m3

yd3

m3

yd3

mm

ft/inmm

ft/inmm

ft/inmm

ft/inmm

inmm

ft/inmm

ft/inmm

ft/inkglbkglb

kNlbkglb

mm

ft/inmm

ft/indegrees

Operation Specifications

General Purpose Buckets Quick Coupler

RefuseBucket

Bolt-onedges

Bolt-onedges


Bolt-onedges



Dimensions All dimensions are approximate and may vary with work tool.

Tires are 20.5R25 Michelin XHA.

1 Height to top of ROPS 3356 mm 11'0"2 Height to top of exhaust pipe 3099 mm 10'2"3 Height to top of hood 2415 mm 7'11"4 Ground clearance/Standard tire

See Chart below for other tires 397 mm 1'3"5 Lift arm clearance @ maximum lift 3435 mm 11'3"6 Bucket pin height @ maximum lift 3843 mm 12'7"

Bucket pin height, optional high lift 4266 mm 13'11"7 Overall height bucket raised 5284 mm 17'4"8 Center line of rear axle to edge

of counterweight 1869 mm 6'1"

9 Wheelbase 3020 mm 9'10"10 Height to center line of axle 688 mm 2'3"11 Center line of rear axle to hitch 1510 mm 4'11"12 Rack back @ maximum lift 6513 Dump angle @ maximum lift 5014 Rack back @ carry 5015 Rack back @ ground 4216 Dump clearance @ maximum lift

and 45 dump 2771 mm 9'1"

Tires

mm inches mm inches kg lb kg lb kg lb

20.5-R25 XTLA L2 Radial 2603 102 16 1 170 376 120 264 104 23020.5-R25 XHA L3 Radial 2674 105 0 0 0 0 0 0 0 020.5 R25 GP2B L3 Radial 2619 103 +6 0 53 116 37 81 32 7120.5 R25 HRL L3 Radial 2618 103 +23 +1 48 107 34 75 30 6520.5 R25 RL-2+ L3 Radial 2609 103 +12 0 +13 +28 +9 +20 +8 +17650/65R-25 XLD L3 Radial (Low Profile) 2733 108 0 0 +519 +1145 +364 +803 +318 +70120.5-25 SRG LD L3 Bias (16 PLY) 2558* 101* +8 0 242 533 170 374 148 32620.5-25 SRG LD L3 Bias (20 PLY) 2556* 101* +11 0 174 384 122 270 107 23520.5-25 RM 99 L3 Bias 2540* 100* +8 0 58 129 41 90 36 79

*Without bulge.

Width over tires maximum(loaded)

Change in vertical

dimensions

Change inoperating weightwithout ballast

Change instatic tipping

load straight

Change instatic tipping

load articulated

4

7

1 2

3

11

9

15

6

12

8

5

13

10

16

14


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

Dual interior rearview mirrorsDual exterior rearview mirrorsInterior operator lightingStorage compartmentsLunchbox compartmentsBeverage holderSeat, KAB, cloth, adjustableSeat belt, retractable, 51 mm (2") wideAdjustable steering column/wheelForward/Neutral/Reverse switch by implement controlsLH door with sliding windowRH sliding window and emergency exitWindshield wipers, front and rearInterval function for front and rear wipersWindshield washers, front and rear

POWER TRAINBrakes, full hydraulic enclosed wet-discBrake wear indicators with Integrated Braking System (IBS)Front axle with locking differentialDrive line, extreme serviceEngine, Cat C6.6 ACERT and ATAAC technology,

electronically controlled.Fan, radiator, electronically controlled, hydraulically driven,

temperature sensing, on demand.Filters, fuel, primary/secondaryFuel priming pump (Electric)Fuel/Water separatorMonitoring System, Axle Oil Temp.Muffler, sound suppressedRadiator, unit core (6 fpi) with ATAACStarting aid (Glow Plugs)Trans, neutralizer lockout in messengerTorque converterTransmission, countershaft, automatic power shift (4F/3R)Variable Shift Control (VSC), messenger

ELECTRICALAlarm, back-up, adjustableAlternator, 24V/65ABattery disconnect switch with removable keyLighting:

Turn signals with flashing hazard functionTwo halogen headlights with high/low beamParking lightsLED brake and tail lightsTwo front and rear halogen work lights, cab mounted

Jumpstart receptacle

OPERATOR ENVIRONMENTAir ConditioningBucket/Work tool lever lockout featureCab, ROPS/FOPS, pressurized and sound suppressedCoat hookControls, lift and tilt functionsRadio ready including antenna, speakers, two 12V/5A

power outlets, includes cigar lighterElectric horn, dual actuation (steering wheel, implement pod)Sun Visor, FrontCab heating with fresh air inlet and defrosting functionMessenger System

Monitoring and logging of machine dataClockOperator keypadAxle oil temperature

Product Link Ready (optional in some regions)Operator display, Gauges:

Engine coolant temperatureFuel levelHydraulic oil temperatureSpeedometerGear indicatorTachometerTransmission oil temperature

Operator display, Warning Indicators:Glow PlugsElectrical, alternator outputEngine inlet manifold temperatureEngine oil pressureFuel pressureHydraulic oil temperatureParking brakePrimary steering oil pressureService brake oil pressureTransmission filter bypassAxle oil temperature


Standard Equipment (contd)Standard equipment may vary. Consult your Caterpillar dealer for details.

HYDRAULICSLoad sensing implement system, pressure sensingLoad sensing steering systemTwo function hydraulic valve (lift and tilt)Two lever operator implement controls

TIRES, RIMS, & WHEELSA tire must be selected from the mandatory attachments

section. Base machine price includes an allowance basedon a premium radial tire.

ANTIFREEZEPremixed 50% concentration of Extended Life Coolant with

freeze protection to 34 C (29 F).

OTHER STANDARD EQUIPMENTAutomatic bucket positionerCounterweightCouplings, Caterpillar O-ring face sealFenders, Extension, Platform, RearGuards, (bottom crankcase and fuel tank)Hitch, drawbar with pinHood, non-metallic power tiltingHoses, Caterpillar XTHydraulics, Load SensingKickout, lift, automaticKickout, tilt, adjustableLinkage, Z-bar, cast crosstube/tilt leverOil sampling valvesRemote Diagnostic Pressure Taps.Sight Gauges: Engine coolant, hydraulic oil and

transmission oil level.Steering, load sensingVandalism protection caplocks


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

High Lift, three-valve with hydraulic horizontal pinquick coupler

Hydraulics, three or four-valveJoystick control, two, three or four valveLadder, cableLights, auxiliary cab lightsLights, high intensity discharge (HID)Lights, warning 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, 76 mm (3") wideSeatbelt, 76 mm (3") wide (KAB)Steering, secondarySunscreen, rearToolbox

Alternator, heavy-dutyAntifreeze, 50 C (58 F)AutolubeBuckets and work toolsBucket Ground Engaging Tools (GET) see Cat dealer

for detailsCamera, rear viewCoolant, extended lifeCooler, axle oilDifferential Lock, automatic front and rearDrain, axle ecologyEther Starting AidFenders/Platforms, narrowFenders, 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 240-voltHigh Lift, three-valve

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

2008 CaterpillarAll Rights Reserved

Printed in U.S.A.

Materials and specifications are subject to change without notice.Featured machines in photos may include additional equipment.

See your Caterpillar dealer for available options.

CAT, CATERPILLAR, 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.

AEHQ5911-01 (8-08)

Replaces AEHQ5911

938H Wheel Loader

938H Wheel LoaderRELIABILITYDURABILITYPRODUCTIVITYVERSATILITYOWNING AND OPERATING COSTSSERVICEABILITYOPERATOR COMFORTOperation SpecificationsDimensionsStandard EquipmentOptional Equipment

938H

Documents

Transcript of 938H