specalog for 994d wheel loader,...

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Engine @ 1600 RPMEngine Model Cat® 3516B EUIGross Power 1027 kW 1375 hpFlywheel Power 933 kW 1250 hp

Operating SpecificationsOperating Weight 191 200 kg 421,600 lbRated Payload – Standard 34.5 tonnes 38 tonsRated Payload – High Lift 31 tonnes 34 tonsBucket Capacity Range 15-31 m3 19.5-41 yd3

994DWheel Loader

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994D Wheel LoaderPowerful, responsive and rugged, the 994D sets the standard for high productivity.

Designed for maximum productivity,the 994D builds on its productive traditionwith innovations that enhance performance,reliability, durability and operator comfort,to lower your cost-per-ton.

Customer Support

Your Cat dealer offers a wide rangeof services that can be set up under acustomer support agreement when youpurchase your equipment. To help youget the best return on your investment,the dealer will help you choose a planthat can cover everything from machineand work tool selection to replacement.pg. 13

Hydraulics

Powerful Cat hydraulics deliver thepower and control needed to keepmaterial moving. Technologicallyadvanced system provides precise,low-effort control and trouble-freeoperation. Unique filtration systemprevents cross contamination.pg. 8

Structures

Structural components are the backboneof the 994D’s durability. The heavyduty box-section loader frame createsa durable, rugged machine. Solid steellift arms resist twisting for maximumdurability and reliability. pg. 6

Power Train

The Cat 3516B engine delivers highhorsepower to maximize productivity.Field proven for reliable performancein the most demanding applications, the3516B offers superior fuel efficiency,lower emissions, reduced engine noiseand lower operating costs. pg. 4

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Matched Systems

An efficient loading/hauling systemstarts with a perfect match. Your Catdealer can help you build an optimumsystem to maximize truck payloads,minimize loading time, and loweryour cost-per-ton. pg. 14

Serviceability

The 994D is designed for quick andeasy service access. Simplified serviceand maintenance features are designedto minimize downtime for greaterproductivity. pg. 12

Operator’s Station

The ergonomically designed cabpromotes operator comfort and easeof operation to maximize productivity.Controls are positioned with easy reachfor superior control and reduced fatigue.Gear selection and steering is combinedinto one control for optimum efficiency.pg. 10

Buckets and Ground Engaging Tools

Aggressive Cat buckets are designedfor optimal loadability and structuralreliability. A wide selection of bucketsand ground engaging tools providea match for every application andmaterial condition to maximizeproductivity. All buckets featurenew higher capacity ratings. pg. 9

Engine. Field-proven Cat 3516B EUIturbocharged and aftercooled dieselengine delivers high power andreliability in the world’s mostdemanding mining applications.The 3516B is a 16-cylinder, four-strokedesign and uses long, effective powerstrokes for more complete fuelcombustion and optimum efficiency.

Engine Features.

• Three-ring, two-piece pistons withhigh strength forged steel crownsand lightweight aluminum skirts.

• Steel-backed, copper-bondedaluminum bearings.

• Uniflow cylinder head design withfour alloy steel valves per cylinder.

• High carbon steel alloy crankshaftswith hardened journals.

• Pressure lubrication with full-flowfiltered oil and heat exchangeroil cooler.

• Direct-electric 24-volt chargingsystem.

High Torque Rise. With 33% torquerise, the 3516B delivers high luggingforces during digging and accelerationin high rimpull conditions for maximumefficiency and fast cycle times.

Enhanced Life. High displacement, lowrpm rating and conservative horsepowerratings mean more time in the field andless time in the shop.

Electronic Control Module (ECM).The ECM is the electronic “brains” ofthe power system. Computerized systemsenses operating conditions and powerrequirements and adjusts engine formost efficient operation at all times.

Electronic Unit Injection (EUI).The electronically controlled unitinjection fuel system senses operatingconditions and regulates fuel deliveryfor optimum fuel efficiency.

Advanced Diesel Engine Management(ADEM). ADEM system controls fuelinjector solenoids to start and stopfuel injection for superior performance,greater reliability, cold start protection,automatic altitude compensation andair filter restriction indication.

Separate Circuit Aftercooler. Allowsaftercooler circuit to operate cooler thanjacket water temperature for a denserair charge and greater combustion.

Ether Starting Aid. Ensures reliablestart-up in extreme cold operatingconditions.

Cat Planetary Power Shift Transmission.Features heavy duty components tohandle the toughest jobs. Electroniccontrols allow smooth shifting forgreater productivity, durability andlonger component life.

Impeller Clutch Torque Converter (ICTC).Electronically controlled impeller clutchtorque converter provides maximumflexibility in regulating optimum rimpullin all conditions for smoother operation.

Inching Capability. Left brake pedaloperation allows the operator to reducerimpull to 25% then brake for moreprecise inching when approaching atruck or making directional changes.

Rimpull Control. Allows operator toadjust maximum rimpull from 100%down to 90, 85, 75 and 65% using afour-position dial while in first gear.Matching rimpull to job conditionsprovides greater traction in slippery orrough conditions for better performanceand longer tire life.

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Power TrainCat power train delivers smooth, responsive performance and reliability in tough conditions.

Stable Design. Low mounted heavy-duty power train components ensurea stable machine, for an unequalledpayload to full turn static tippingload ratio.

Proven Reliability. The 994D powertrain has proven itself with the mostreliable and durable components inthe industry for the lowest operatingcost-per-ton.

Torque. Torque is developed at thewheel, generating less stress and wearon the axle shafts.

Axles. The front axle is fixed, and therear axle oscillates ±10°, which allowseither rear wheel to rise or fall 677 mm(26.7 in) while all wheels remain on theground for maximum stability, greatertraction and a more comfortable ride.

Differentials. Standard conventionaldifferentials allow one tire to spin fasterthan the other, keeping developedtorque out of the axles.

Axle Shafts. Free-floating axle shaftscan be removed independently of thewheels and planetaries for quick andeasy servicing.

U-Joints. Permanently lubricated forgreater durability and long service life.Only the slipjoint requires manuallubrication.

Oil-Cooled Disc Brakes. Four-wheel,fully hydraulic oil-cooled multipledisc brakes are completely sealed andadjustment free. Two brake pedalsallow standard braking with right pedalplus rimpull modulation braking withleft pedal.

Brake Cooling. The brake oil coolerprovides additional cooling to the brakediscs for greater durability.

Filtration. Screens on the brake circuitminimize the risk of contamination.

Parking/Secondary Brake. Manual,spring-applied, multiple dry-disc brakeis located on the front driveline forprotection from contamination.Monitoring system alerts operator iftransmission is engaged while parkingbrake is applied, and if the pressuredrops, the parking brake isautomatically applied.

Engine Cooling. Advanced ModularCooling System (AMOCS) significantlyimproves heat rejection through the useof copper cooling cores and an efficienttwo-pass cooling design.

Final Drives. The all-wheel drive designfeatures four planet carrier gears withplanetary double reduction in each wheelfor superior reliability. Planetaries canbe removed independently of the wheelsand brakes for quick and easy servicing.

Duo-Cone® Seals. Seals out dirt andcontamination to extend component life.

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Robust Structures. The 994D frontloader frame features robust structuralcomponents for outstanding durabilityin the toughest loading conditions.The frame is the backbone of the994D’s durability and is specificallydesigned and manufactured to withstandthe higher forces required by themachine’s increased payload rating.

Frame. The box-section rear frame,articulation hitch and four-plate loadertower are designed to resist torsionalshocks, twisting forces and stressesgenerated during the loading cyclewhile protecting driveline and hydraulicsystem components.

1) Axle Mounting Area. Thicker axlepad castings joined by a box-boomstructure provides added strength andstiffness in the axle mounting area.

2) Pivot Mount Castings. Castings inthe lift arm pivot mounting area betterdisperse stress loads for increasedstructural integrity.

3) Steering Cylinder Mounts. Steeringcylinder mounts are thicker to moreefficiently transmit steering loads intothe frame.

4) Window Plate. Modified frontwindow plate design and 60% thickerplate provides greater resistance totorsional loads.

Hitch Plate. The lower articulation hitchplate is larger for greater structuraldurability.

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StructuresDesigned for maximum strength and durability in the harshest operating environments.

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Lift Arms. The 994D’s solid steel liftarms absorb high stresses generatedduring loading without sacrificingstrength or durability. The linkagedesign provides an excellent viewof the bucket edges, corners, andwork area, allowing the operatorto focus on productivity.

1) Lift Arm Cross Member. A heat-treatedlift arm cross member and improvedweld procedures provide greaterreliability and durability.

2) Lift Arm Mounting. Life of lift arm tofront frame and lift arm to bucket pinlocations are greatly improved by thereduction of stress risers.

3) Stress-Relieved Lift Arms. Lift armsare stress relieved to eliminate residualstresses created during manufacturingand increase durability.

4) Auto Lube. Bucket to lift arm joint(B-pin) is automatically lubricated toincrease reliability and reduce dailyservicing.

Z-bar Loader Linkage. Proven Z-barloader linkage geometry deliversmaximum productivity. Fewer pivotpoint and moving parts are designedto reduce maintenance costs.

Breakout Force. High breakout forceallows the loader to aggressivelypenetrate the bank.

Rackback. High rackback angleensures greater material retentionand less spillage.

Dump Speed. Controlled dumpingspeed protects the front linkage fromexcessive wear.

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Hydraulic System. Completely enclosedhydraulic system uses separate circuitsfor lift and tilt, steering and brakecontrol. Separate circuits provideincreased cooling and elimination ofcross-contamination, resulting in lessdowntime and greater productivity.

Lift and Tilt System. Three dedicatedfixed displacement piston pumpsdeliver high reliability, efficiency andperformance to the lift and tilt system.

Pilot Controls. Low-effort, pilot-operatedfinger-tip controls provide smooth,precise control of lift and tilt functions.Automatic lift kickout and return to digdetents deliver fast cycle times.

Steering System. The 994D featuresa load-sensing steering system withvariable displacement piston pump forsmooth, precise control. The revolutionarysteering system integrates steering andtransmission control functions into asingle controller. Simple side-to-sidemovement of the STIC steer lever turnsthe machine right or left. Center pointframe articulation allows the machineto articulate 40° to the left or right,permitting precise positioning intight areas.

Filtration System. Advanced filtrationsystem consists of additional screensand filters throughout the lift/tilt,steering and brake systems to maintaincleanliness, and prevent downstreamcontamination. All are monitoredelectronically through VIMS to simplifydiagnostic troubleshooting and reducedowntime.

• Lift/tilt high pressure screens• Steering high pressure screens• Lift/tilt case drain filters• Steering case drain filters• Hydraulic case drain filters• Front pump drive lube filter• Front and rear brake oil screens

Cat Hydraulic Hose. Field provenCat high-pressure XT hydraulic hoseis exceptionally strong and flexible formaximum system reliability and longlife in the most demanding conditions.Reusable couplings with o-ring faceseals provide superior, leak freeperformance and prolong hose assemblylife. Large-bore lift and tilt cylindersround out the hydraulic system,delivering high performance anddurability.

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HydraulicsCat hydraulics deliver the power and control needed to keep material moving.

High Productivity. Aggressive Catbucket designs deliver unmatchedproductivity in the most demandingapplications. 994D buckets have beenredesigned for optimal loadability andstructural reliability.

Increased Bucket Capacity Ratings.994D buckets have been slightlymodified to allow for a higher capacityrating, which better reflects the actualcarrying capacity of the bucket.Physical dimensions have not changed.

Rugged Design. Cat buckets aremanufactured using shell-tineconstruction to resist twisting anddistortion. A more aggressive spadeedge increases bucket penetration andfill factors and provides better retentionof loose material. An integral rockguard helps retain big loads for greaterfill factors and optimum truck loading.

Spade Edge Rock Buckets. Spade edgerock buckets with bolt-on segments aredesigned to penetrate through the pilewhile leaving a smooth work floor.Shouldered, double-strap adapters alloweasy change-out and bolt-on segmentsextend base edge life.

Bucket Protection. Cat GroundEngaging Tools (G.E.T.) providesuperior bucket protection for long life inthe most punishing conditions. Built toabsorb shock, impact, and abrasion,G.E.T. work and wear as a system toboost productivity and lower costs.

Tips. Tips extend bucket life in highwear applications.

Sidebar Protectors. Protects bucketcorner and sides from wear in abrasivematerials. Pin-on sidebars are reversibleto extend wear life.

Edge Protectors. Protects bucket edgefrom wear in materials with high wearrates. Independently pinned for easyreplacement without removing tipsor adapters.

Wear Plates. Replaceable wear platesprotect the bucket bottom. Bolt-on andweld-on wear plates protect the rearbase edge from damage.

Mechanically Attached AdapterSystem (MAA) Designed for high wearapplications, this system offers fullprotection for the bucket wear edgewhile featuring fast removal andinstallation (top-pinned tips require lesstime to change than side-pinned tips).

MAA Corner Adapters. Increases overallbucket width by 76-102 mm (3-4 in)without changing bucket capacity.

MAA Wear Indicator. Built-in wearindicator provides a visual indicationof when center adapters need replaced.

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Buckets and Ground Engaging ToolsCat buckets provide the flexibility to match the machine to the material and conditions.

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Operator’s StationErgonomically designed for operator comfort, superior control and high productivity.

Ergonomic Design. The 994D sets thestandard for productivity with advancedcontrols and greater operator comfort.Ergonomic design creates a uniquehuman engineered environment thathelps the operator get more work done,all shift long.

1) Steering and TransmissionIntegrated Control System (STIC).Combines directional selection, gearselection and steering into a singlelever for maximum responsiveness.Simple side-to-side motion turns machineright or left. Transmission shifting(forward/neutral/reverse) is controlledby the operator’s fingers, and gearselection is controlled by the thumb.The integrated control system deliverslow effort controls for smoother, fastercycles with less operator fatigue.

2) Left Brake Pedal. Operates theImpeller Clutch Torque Converterreducing rimpull to 25%, then engagesthe brakes for improved control andsmoother directional shifts.

3) Contour Series Seat. The airsuspension Cat Contour Series Seatwith retractable seat belt offers six seatand armrest adjustments for precisepositioning and optimum operatorcomfort. Ergonomic design reducespressure on the lower back and thighsand allows unrestricted arm and legmovement for greater productivitywith less fatigue.

4) Gauge Group. Four separate gaugesallow the operator to constantly monitorvital machine systems.

• Hydraulic oil temperature gauge- Lift and tilt oil- Brake system oil- Steering system oil

• Transmission oil temperature gauge

• Coolant temperature gauge- Aftercooler coolant- Engine coolant

• Engine hour meter

5) Air Conditioner/Heater Controls.A/C system contains environmentallysafe R134a refrigerant.

6) Monitoring System. Vital InformationManagement System (VIMS)electronically monitors and storesdiagnostic and performance informationin easy-to-read displays for earlyidentification of potential problemsand more accurate troubleshooting.The integrated Payload Control Systemdisplays and stores vital productioninformation for tracking payloads,loader cycle times and other machinedata. The message center displays vitalmachine information and alerts operatorof potential problems. It also stores datathat can be easily accessed through thekeypad or downloaded to a laptop forquick diagnosis and troubleshooting.A data port allows for wirelesstransmission of data to the mine office.

7) Bucket and Hoist Controls.Two levers control bucket and liftarm functions.

• Bucket tilt/curl control – threepositions: tilt back, hold, dump.

• Lift arm hoist control – four positions:raise, hold, lower, float.

Adjustable automatic kickouts for liftand bucket tilt deliver faster cycletimes. Automatic bucket positioningreturns to desired loading angle.

8) Throttle Lock. Similar to cruisecontrol, throttle lock allows the operatorto preset engine speed for specificapplications and more effectivelyconcentrate on productivity.

9) Rimpull Control Switch. Activates/deactivates rimpull control system.

10) Rimpull Control Dial. Allowsoperator to match rimpull settings tojob conditions with four-position dial.Operator can adjust maximum rimpullfrom 100% down to 90, 85, 75 and 65%while in first gear. Matching rimpull tojob conditions provides greater tractionin slippery or rough conditions forbetter performance and longer tire life.

11) Torque Converter Lock-Up. Lock-upprovides greater efficiency and fasterroading capability.

12) Intermittent Wiper Control.

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Easy Servicing. The 994D is designedfor quick, easy servicing. Simplifiedaccess to service areas allows for quickservicing and ensures routine maintenanceprocedures are performed on time.

Ground-Level Access. Ground-levelaccess to centralized lubrication pointsmakes lube service quick and easy.

Air Cleaners. Dry-type air cleanerswith primary and secondary elements,automatic dust ejector, and serviceindicator are positioned above thehood for easy access.

Pressure Test Ports. Hydraulic pressuretest ports enable fast troubleshooting ofmajor hydraulic circuits.

Cooling System. Two-pass AdvancedModular Cooling System (AMOCS) hasmodular design with removable coresfor easy replacement and maintenance.

On-Board Diagnostics. Diagnosticconnector allows quick troubleshootingof starting and charging functions.

Monitoring System. VIMS notifiesoperator and service technicians ofproblems before failure and identifieslocation to minimize troubleshootingand reduce downtime. Features:

• Three-level warning system• Data recording system• Payload Control System• Off-board analysis system

Autolube. Standard automatic lubricationsystem reduces maintenance time byautomatically lubricating bearings in:

• lift and tilt cylinders• upper and middle bucket tilt levers• bucket pins• steering cylinders• rear axle trunnions• fan drive and belt tightening pulleys• upper and lower articulation hitch

Lubrication timing and duration can beeasily set using the VIMS keypad.

Wiggins Service Center. Reducesmaintenance time by centralizing fastfill connections and providing ground-level service access for:

• lift and tilt oil• steering oil• steering/brake actuator oil• brake oil• engine oil• engine coolant• transmission oil• autolube• air tank

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ServiceabilityLess time spent on maintenance means more time on the job.

Machine Selection. Make detailedcomparisons of the machines you areconsidering before you buy.

Purchase. Look past initial price.Consider the financing options available,as well as day-to-day operating costs.This is also the time to look at dealerservices that can be included in the costof the machine to lower equipmentowning and operating costs overthe long run.

Financing. Your dealer is expert atarranging affordable financing optionsfor all Caterpillar products.

Customer Support Agreements.Cat dealers offer a variety of productsupport agreements, and work withcustomers to develop a plan that meetsspecific needs. These plans can coverthe entire machine, including worktools, to help protect your investments.

Product Support. You will find nearlyall parts at your dealer parts counter.Cat dealers use a worldwide computernetwork to find in-stock parts tominimize machine downtime. Catreman parts offer the same warrantyand reliability as new products atcost savings of 40 to 70 percent.

Operation. Improving operatingtechniques can boost your profits.Your Cat dealer has training videotapes,literature, and equipment trainingcourses to help you increase productivity.

Maintenance Services. Choose fromyour dealer’s range of maintenanceservices when you purchase yourmachine. Repair option programsguarantee the cost of repairs up front.Diagnostic programs such as S•O•SSM

coolant sampling and technical analysishelp you avoid unscheduled repairs.

Replacement. Repair, rebuild orreplace? Your Cat dealer can help youevaluate the cost involved so you canmake the right choice.

www.CAT.com. For more completeinformation on Cat products, dealerservices, and industry solutions, visitus on the web at www.CAT.com.

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Customer SupportCaterpillar® dealers have what it takes to keep mining machines productive.

Efficient Combination. For full truckpayloads with minimum loading time,an efficient loading/hauling systemstarts with a perfect match. Cat WheelLoaders are matched with Cat C-SeriesMining Trucks to maximize volume ofmaterial moved at the lowest operatingcost-per-ton.

Application Match. The standard994D is sized to load the 150-ton 785Cin four passes. The 994D high-lift loadsthe 195-ton 789C in six passes and the240-ton 793C in seven passes.

Bucket Selection. Selection of the rightbucket width depends on penetrationrequirements and the loading target.Bucket sizes are matched to truckbed capacities for optimum loadingefficiency and greater productivity.

Narrow Bucket. The narrower 5650 mm(222 in) buckets are optimally matchedto load the Cat 785C, and are also sizedfor the 789C.

Wide Bucket. The wider 6220 mm(245 in) buckets are optimally matchedto load the larger Cat 789C, and arealso sized for the 793C.

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Matched SystemsAn efficient loading/hauling system starts with a perfect match.

* High-lift arrangement

994D/785C SYSTEM Passes 4

994D*/789C SYSTEMPasses 5/6

994D*/793C SYSTEM Passes 7

15994D Wheel Loader specifications

Operating Specifications

Operating Weight 191 200 kg 421,600 lbRated Payload – Standard 34.5 tonnes 38 tonsRated Payload – High-Lift 31 tonnes 34 tonsCat Truck Match – Standard 785C, 789CCat Truck Match – High-Lift 789C, 793CBucket Capacity Range 15-31 m3 19.5-41 yd3

Transmission

Transmission Type Cat planetary power shiftForward 1 7.3 kph 4.6 mphForward 2 12.9 kph 8.0 mphForward 3 22.6 kph 14.1 mphReverse 1 8.1 kph 5.0 mphReverse 2 14.3 kph 8.9 mphReverse 3 24.9 kph 15.5 mph

• Travel speeds based on two percent rolling resistance and53.5/85-57 tires in converter drive.

Forward 1 Lock-up disabledForward 2 13.8 kph 8.6 mphForward 3 24.1 kph 15.0 mphReverse 1 8.6 kph 5.3 mphReverse 2 15.2 kph 9.5 mphReverse 3 26.6 kph 16.5 mph

• Travel speeds based on two percent rolling resistance and53.5/85-57 tires in direct drive.

Hydraulic System – Lift/Tilt

Lift/Tilt System – Circuit ClosedLift/Tilt System – Pump Piston, fixed displacementMax Flow at 1710 rpm (3x) (6900 kPa) 1245 L/min 329 gal/minRelief Valve Setting – Lift/Tilt 30 400 kPa 4408 psiCylinders – Lift/Tilt Double-actingLift Cylinder – Bore 318 mm 13 inLift Cylinder – Stroke 1660 mm 65.4 inTilt Cylinder – Bore 267 mm 10.5 inTilt Cylinder – Stroke 1140 mm 44.9 inNumber of Lift/Tilt Pumps 3Number of Lift Cylinders 2Number of Tilt Cylinders 2

Hydraulic System – Pilot

Pilot System – Circuit ClosedPilot System – Pump GearMax Flow at 1710 rpm (6900 kPa) 78 L/min 20.6 gal/minRelief Valve Setting – Pilot 2400 kPa 348 psiNumber of Pilot Pumps 1

Engine @ 1600 RPM

Engine Model Cat 3516B EUIGross Power 1027 kW 1375 hpFlywheel Power 933 kW 1250 hpNet Power – Caterpillar 1027 kW 1375 hpNet Power – SAE J1349 1015 kW 1361 hpNet Power – ISO 9249 1027 kW 1375 hpNet Power – EEC 80/1269 1027 kW 1375 hpBore 170 mm 6.7 inStroke 190 mm 7.6 inDisplacement 69 L 4221 in3

Peak Torque @ 1100 rpm 7500 N.m 5786 lb ftTorque Rise 33%

• Net power advertised is the power available at the flywheelwhen the engine is equipped with fan, air cleaner, muffler,and alternator.

• Ratings based on standard air conditions of 25ºC (77ºF) and99 kPa (29.32 Hg) dry barometer. Power based on fuel havingAPI gravity of 35 at 16°C (60°F) and an LHV of 42 780 kJ/kg(18,390 BTU/lb) when engine used at 30ºC (86ºF).

• No engine derating required up to 3050 m (10,000 ft) altitude.

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16 994D Wheel Loader specifications

Dimensions

Height to Top of Exhaust Stacks 6914 mm 22.7 ftHeight to Top of ROPS/FOPS 6711 mm 22 ftHeight to Top of Hood 4759 mm 15.6 ftHeight to Center of Axle 1750 mm 5.7 ftBumper Clearance 1410 mm 4.6 ftGround Clearance 825 mm 2.7 ftReach at Max. Lift/Dump – Std 2263 mm 7.4 ftReach at Max. Lift/Dump – HL 2825 mm 9.3 ftClearance at Max. Lift/Dump – Std 5592 mm 18.3 ftClearance at Max. Lift /Dump – HL 5931 mm 19.5 ftBucket Pivot at Max. Lift – Std 8157 mm 26.8 ftBucket Pivot at Max. Lift – HL 8496 mm 27.9 ftOverall Height – Bucket Raised – Std 10 996 mm 36.1 ftOverall Height – Bucket Raised – HL 11 336 mm 37.2 ftLength – Rear Axle to Bumper 4500 mm 14.8 ftWheel Base Length 6400 mm 21 ftFront Axle to Bucket Tip – Std 5909 mm 19.4 ftFront Axle to Bucket Tip – HL 6689 mm 22 ftOverall Length – Std 16 809 mm 55.1 ftOverall Length – HL 17 589 mm 57.7 ftWidth Over Tires 5449 mm 17.9 ft

• Standard machine with 53.5/85-57 tires and 19 m3 (24.5 yd3)222 in. spade edge rock bucket with teeth and segments.

• High-Lift machine with 53.5/85-57 tires and 18 m3 (23.5 yd3)245 in. spade edge rock bucket with teeth and segments.

Hydraulic System – Steering

Steering System Type STIC steerSteering System – Circuit ClosedSteering System – Pump Piston, variable

displacementMax Flow at 1710 rpm (2x) (6900 kPa) 425 L/min 112 gal/minRelief Valve Setting – Steering 3100 kPa 4495 psiNumber of Steering Pumps 2

Hydraulic Cycle Time

Rackback 6.0 secondsRaise 12.5 secondsDump 3.4 secondsFloat Down 4.0 secondsPower Down 7.4 seconds

Service Refill Capacities

Fuel Tank 4641 L 1226 galCooling System 490 L 129 galCrankcase 286 L 75.5 galTransmission 350 L 92 galDifferential/Final Drives (each) 621 L 164 galHydraulics – Lift/Tilt 621 L 164 galHydraulics – Brake Cooling 22 L 6 galHydraulics – Steering/Brake 250 L 66 galPump Drive – Front 7 L 2 gal

Standards

Cab/ROPS SAE J1394SAE J11040 APR88ISO 3471-1 1986ISO 3471 1994

Cab/FOPS SAE J231 JAN81ISO 3449 1992 Level II

Cab Sound ISO 6394: 1998Cab Vibration EC 89/392EECBrakes SAE J1473 OCT90

ISO 3450 1992

• The operator sound exposure Leq (equivalent soundpressure level) measured according to work cycleprocedures specified in ANSI/SAE J1166 OCT98 is 80 dB(A)for cab offered by Caterpillar, when properly installed andmaintained and tested with doors and windows closed.

• Hearing protection may be needed when operating withan open operator station and cab (when not properlymaintained or doors/windows open) for extended periodsor in a noisy environment.

• The exterior sound pressure level for the standard machinemeasured at a distance of 15 m (49 ft) according to the testprocedures specified in SAE J88 JUN86, mid-gear movingoperation is 85 dB(A).


Standard* High Lift** Standard* High Lift**50/80-57 Tires 50/80-57 Tires 53.5/85-57 Tires 53.5/85-57 Tires

2 Height to Top of ROPS/FOPS 6562 mm (21.5 ft) 6562 mm (21.5 ft) 6711 mm (22.0 ft) 6711 mm (22.0 ft)3 Height to Top of Hood 4610 mm (15.1 ft) 4610 mm (15.1 ft) 4759 mm (15.6 ft) 4759 mm (15.6 ft)4 Height to Center of Axle 1601 mm (5.2 ft) 1601 mm (5.2 ft) 1750 mm (5.7 ft) 1750 mm (5.7 ft)5 Bumper Clearance 1261 mm (4.1 ft) 1261 mm (4.1 ft) 1410 mm (4.6 ft) 1410 mm (4.6 ft)6 Ground Clearance 676 mm (2.2 ft) 676 mm (2.2 ft) 825 mm (2.7 ft) 825 mm (2.7 ft)7 Reach at Maximum Lift/Dump 2443 mm (8.0 ft) 3005 mm (9.9 ft) 2263 mm (7.4 ft) 2825 mm (9.3 ft)8 Clearance at Maximum Lift/Dump 5412 mm (17.8 ft) 5751 mm (18.9 ft) 5592 mm (18.3 ft) 5931 mm (19.5 ft)9 Bucket Pivot at Maximum Lift 7977 mm (26.2 ft) 8317 mm (27.3 ft) 8157 mm (26.8 ft) 8496 mm (27.9 ft)

10 Overall Height – Bucket Raised 10 816 mm (35.5 ft) 11 156 mm (36.6 ft) 10 996 mm (36.1 ft) 11 336 mm (37.2 ft)11 Length – Rear Axle to Bumper 4500 mm (14.8 ft) 4500 mm (14.8 ft) 4500 mm (14.8 ft) 4500 mm (14.8 ft)12 Wheel Base Length 6400 mm (21.0 ft) 6400 mm (21.0 ft) 6400 mm (21.0 ft) 6400 mm (21.0 ft)13 Length – Front Axle to Bucket Tip 6029 mm (19.8 ft) 6809 mm (22.3 ft) 5909 mm (19.4 ft) 6689 mm (22.0 ft)14 Overall Length 16 929 mm (55.5 ft) 17 709 mm (58.1 ft) 16 809 mm (55.1 ft) 17 589 mm (57.7 ft)

* Standard machine equipped with 19 m3 (24.5 yd3) 222 in. Bucket** High Lift machine equipped with 18 m3 (23.5 yd3) 245 in. Bucket

DimensionsAll dimensions are approximate.

1 Height to Top of Exhaust Stacks 6765 mm (22.2 ft) 6765 mm (22.2 ft) 6914 mm (22.7 ft) 6914 mm (22.7 ft)

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Standard Lift (53.5/85-57, 76 PR L-5 Tires)Spade Edge Spade Edge

Rock Buckets Rock Buckets High Tireswith Teeth and Segment with MAA Lift 50/80-57

Rated capacity (§) m3 15 17 19 17 19 Same Sameyd3 19.5 22.5 24.5 22.5 24.5

Struck capacity (§) m3 12.8 14 15 14 15 Same Sameyd3 15.5 18 20 18 20

Width (§) mm 5650 5650 5650 5740 5740 Same Sameft/in 18' 6" 18' 6" 18' 6" 18' 10" 18' 10"

Dump clearance at full mm 5799 5698 5592 5607 5502 +339 -180lift and 45° discharge (§) ft/in 19' 0" 18' 8" 18' 4" 18' 5" 18' 1" +1' 1" -7"Reach at full lift mm 2055 2157 2263 2246 2351 +562 +180and 45° discharge (§) ft/in 6' 9" 7' 1" 7' 5" 7' 4" 7' 9" +1' 10" +7"Reach with lift arms mm 4912 5056 5206 5183 5333 +640 +180horizontal and bucket level ft/in 16' 1" 16' 7" 17' 1" 17' 0" 17' 6" +2' 1" +7"Digging depth (§) mm 68 68 68 68 68 +14 +180

in 3" 3" 3" 3" 3" +0.5" +7"Overall length (§) mm 16 621 16 659 16 809 16 892 17 042 +780 +120

ft/in 54' 6" 54' 8" 55' 2" 55' 5" 55' 11" +2' 7" +5"Overall height with bucket mm 10 786 10 916 10 996 11 036 11 174 +340 -180at full raise (§) ft/in 35' 5" 35' 10" 36' 1" 36' 2" 36' 8" +1' 1" -7"Loader clearance circle with mm 25 140 25 362 25 436 25 558 25 788 +299 +64bucket in carry position (§) ft/in 82' 6" 83' 2" 83' 6" 83' 10" 84' 8" +1' 0" +3"Static tipping load kg 126 758 125 829 124 764 125 278 124 495 0.82† 1.02† straight** (§) lb 279,453 277,405 275,057 276,190 274,464 0.82† 1.02† Static tipping load kg 107 095 106 166 105 101 105 615 104 832 0.80† 1.02† at full 40° turn** (§) lb 236,104 234,056 231,708 232,841 231,115 0.80† 1.02† Breakout force*** (§) kN 1057 950 886 961 923 0.96† 1.00†

lb 237,825 213,750 199,350 216,225 207,675 0.96† 1.00† Operating weight** (§) kg 189 343 190 229 191 244 190 754 191 500 +2553 -4681

lb 417,429 419,383 421,620 420,540 422,185 +5630 -10,320

(§) Specifications rating conform to all applicable standards recommended by the Society of Automotive Engineers. SAE standard J732c governs loader ratingsand is denoted in the chart by (§).

* Dimensions are measured to the tip of the bucket teeth to provide accurate clearance data. SAE standard specifies the cutting edge.** Static tipping load and operating weight shown are based on standard machine configuration with 53.5/85-57 tires, full fuel tank, coolant and lubricants.

*** Measured 102 mm (4 in) behind tip of cutting edge with the bucket hinge pin as pivot point in accordance with SAE J732c.† Factor multiplied by standard arrangement data to get high lift arrangement value.

◆ Buckets with Mechanically Attached Adapter (MAA) system have corner adapters that add 76-102 mm (3-4 in) to the overall bucket width. This does notchange the capacity of the bucket.

Operating Specifications – Narrow BucketsFor machines equipped with 5650 mm (222 in) and 5740 mm (226 in) buckets



Operating Specifications – Wide BucketsFor machines equipped with 6220 mm (245 in) and 6300 mm (248 in) buckets

Standard Lift (53.5/85-57, 76 PR L-5 Tires)Spade Edge Straight Spade Edge

Rock Bucket with Edge Rock Bucket High TiresTeeth and Segment Coal Bucket with MAA Lift 50/80-57

Rated capacity (§) m3 18 19 31 18 19 Same Sameyd3 23.5 25 41 23.5 25

Struck capacity (§) m3 14 15 26 14 15 Same Sameyd3 18 19.5 34 18 19.5

Width (§) mm 6220 6220 6220 6300 6300 Same Sameft/in 20' 5" 20' 5" 20' 5" 20' 8" 20' 8"

Dump clearance at full mm 5698 5592 5610 5608 5502 +339 -180lift and 45° discharge (§) ft/in 18' 8" 18' 4" 18' 5" 18' 5" 18' 1" +1' 1" -7"Reach at full lift mm 2157 2263 2243 2246 2352 +562 +180and 45° discharge (§) ft/in 7' 1" 7' 5" 7' 4" 7' 4" 7' 9" +1' 10" +7"Reach with lift arms mm 5056 5206 5177 5183 5333 +640 +180horizontal and bucket level ft/in 16' 7" 17' 1" 17' 0" 17' 0" 17' 6" +2' 1" +7"Digging depth (§) mm 68 68 68 68 68 +14 +180

in 3" 3" 3" 3" 3" +0.5" +7"Overall length (§) mm 16 659 16 809 16 888 16 892 17 042 +780 +120

ft/in 54' 8" 55' 2" 55' 5" 55' 5" 55' 11" +2' 7" +5"Overall height with bucket mm 10 919 11 011 11 032 11 036 11 174 +340 -180at full raise (§) ft/in 35' 10" 36' 2" 36' 2" 36' 2" 36' 8" +1' 1" -7"Loader clearance circle with mm 25 362 25 436 26 354 25 558 25 788 +299 +64bucket in carry position (§) ft/in 83' 2" 83' 6" 86' 6" 83' 10" 84' 8" +1' 0" +3"Static tipping load kg 124 561 123 877 123 448 123 753 123 298 0.82† 1.02†straight** (§) lb 274,610 273,102 272,156 272,828 271,825 0.82† 1.02†Static tipping load kg 104 898 104 214 103 785 104 090 103 635 0.80† 1.02†at full 40° turn** (§) lb 231,260 229,752 228,807 229,479 228,476 0.80† 1.02†Breakout force*** (§) kN 944 877 959 958 913 0.96† 1.00†

lb 212,400 197,325 215,775 215,550 205,425 0.96† 1.00†Operating weight** (§) kg 191 437 192 089 192 498 192 207 192 641 +2553 -4681

lb 422,046 423,483 424,385 423,743 424,700 +5630 -10,320

(§) Specifications rating conform to all applicable standards recommended by the Society of Automotive Engineers. SAE standard J732c governs loader ratingsand is denoted in the chart by (§).

* Dimensions are measured to the tip of the bucket teeth to provide accurate clearance data. SAE standard specifies the cutting edge.** Static tipping load and operating weight shown are based on standard machine configuration with 53.5/85-57 tires, full fuel tank, coolant and lubricants.

*** Measured 102 mm (4 in) behind tip of cutting edge with the bucket hinge pin as pivot point in accordance with SAE J732c.† Factor multiplied by standard arrangement data to get high lift arrangement value.

◆ Buckets with Mechanically Attached Adapter (MAA) system have corner adapters that add 76-102 mm (3-4 in) to the overall bucket width. This does notchange the capacity of the bucket.

Change in OperatingWeight Standard Change in Static Tipping Load

(for four tires) Standard High Lift49.5/85-57, 76PR L-5* –1056 kg –2328 lb –737 kg –1625 lb –631 kg –1391 lb53.5/85-57, 76PR L-5** 0 kg 0 lb 0 kg 0 lb 0 kg 0 lb50/80-57, 68PR L-4** –4149 kg –9149 lb –2895 kg –6383 lb –2478 kg –5464 lb52/80-57, 68PR L-4** –4744 kg –10 461 lb –3183 kg –7019 lb –2724 kg –6006 lb55/80-R57, XMINE D2*** –1356 kg –2990 lb –946 kg –2086 lb –810 kg –1786 lb

* with 914 mm (36 in) rims** with 1118 mm (44 in) rims with 152 mm (6 in) flange

*** with 1118 mm (44 in) rims with 126 mm (5 in) flange

Tire Specifications

Change inGround vertical

Width over tires clearance dimensions49.5/85-57, 76PR L-5 5265 mm 207.28 in 828 mm 32.60 in 3 mm 0.19 in53.5/85-57, 76PR L-5 5449 mm 214.53 in 825 mm 32.48 in 0 mm 0 in50/80-57, 68PR L-4 5260 mm 207.09 in 676 mm 21.61 in –149 mm –5.87 in52/80-57, 68PR L-4 5260 mm 207.09 in 676 mm 21.61 in –149 mm –5.87 in55/80-R57, XMINE D2 5449 mm 214.53 in 705 mm 27.76 in –120 mm –4.72 in

Note: In certain applications, such as load and carry work, the loader’s productive capabilities might exceed the tires’ tonnes/kph(tons/mph) capabilities. Caterpillar recommends evaluating all operating conditions before selecting a tire.

Tire Dimensions



Bucket Capacity Ratings

994D buckets have been slightly modified to allow for a higher capacity rating. The new ratings better reflectthe actual carrying capacity of the bucket. Physical dimensions of the buckets have not changed.

Bucket Description Former Capacity Rating New Capacity RatingSpade Edge Rock Buckets – 5650 mm 14 m3 18 yd3 15 m3 19.5 yd3

(222 in) – with Teeth and Segments 16 m3 21 yd3 17 m3 22.5 yd3

18 m3 23 yd3 19 m3 24.5 yd3

20 m3 26 yd3 21 m3 27.5 yd3

Spade Edge Rock Buckets – 6220 mm 16 m3 21 yd3 18 m3 23.5 yd3

(245 in) – with Teeth and Segments 18 m3 23 yd3 19 m3 25.0 yd3


(222 in) – with MAA 18 m3 23 yd3 19 m3 24.5 yd3


(248 in) – with MAA 18 m3 23 yd3 19 m3 25.0 yd3

Spade Edge Coal Buckets – 6220 mm 30 m3 40 yd3 31 m3 41.0 yd3

(245 in) – with Teeth and Segments

Material Density(Thousands)

Bucket Capacity Bucket Fill Factor115% 95%

Standard

115% 95%

High-Lift

2.4 2.6 2.8 3.0 3.2 3.4 3.6 3.8 4.0 4.2 4.4

1.4 1.6 1.8 2.0 2.2 2.4 2.6

24.5

22.5

19.5

19

17

15

yd3m3

kg/m3

lb/yd3

Bucket Capacity/Material Density Selection Guide

The following table provides a guideline for bucket selection based on various material densities and estimated fill factors.Based on the new ratings, fill factors are expected to be 110-120% in cohesive materials with easy digging, 100-110% intypical shot rock loading, and 90-100% in poorly shot rock with large rocks and difficult penetration. For many miningapplications, the 994D standard lift is matched with the 19 m3 (24.5 yd3) rock bucket and the high lift is matched with the17 m3 (22.5 yd3) rock bucket.

Changes in bucket weight, including field installedwear iron, can impact rated payload. Consult yourCaterpillar dealer for assistance in selecting andconfiguring the proper bucket for the application.The Caterpillar Large Wheel Loader Payload Policyis a guideline intended to maximize wheel loaderstructural and component life.


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

POWER TRAINBrakes, oil-cooled, multi-disc, service/secondaryDriveline parking brakeEngine, 3516B EUI Diesel, turbocharged, aftercooledFuel priming pumpGuard, transmission/torque converterGround level engine shutoffPrecleaner, engine air intake (above hood)Radiator, Advanced Modular Cooling System (AMOCS)Rims, factory installedStarting aid, ether, automaticThrottle lock, electronicTorque converter, impeller clutch (ICTC), lockup clutchTransmission, planetary powershift, 3F/3R electronic control

OTHERAir tank, ECC compliant (EN286)Air line dryerAntifreeze, premixed, 50% concentration extended life

coolant w/freeze protection to –50°C (–58°F)Automatic bucket lift kickoutAutomatic bucket positionerAutomatic lubrication system, fast fill, WigginsBlower fanDoors, service access, lockingEcology drainsEngine oil change system, high speed, WigginsFast fill fuel system, WigginsFuel tank, 4641 L/1226 galHitch, drawbar, pinHydraulic system

Couplings, Cat o-ring face sealFiltration/screening system, steering, brakeHoses, Cat XTSteering, load-sensing

MufflersOil sampling valvesRear access, cab, service platformSupplemental steering systemWiggins Service CenterVandalism protection, caplocks

ELECTRICALAlarm, back-upAlternator, 100 ampBatteries, dryConverter, 15 amp, 24V to 12VDiagnostic connectorLights, halogen, working; access/service platform lightsStarting and charging system, 24V

OPERATOR ENVIRONMENTAir conditionerCab, sound suppressed and pressurizedCab, external rollover protective structure, ROPS/FOPSCab, cleanout hoseCigar lighter, ashtrayCoat hookControls, lift and tilt functionHeater, defrosterHorn, electricInstrumentation, gauges

Coolant temperatureEngine hour meterHydraulic oil temperatureTransmission oil temperature

Light, cab, domeLunchbox, beverage holdersMirrors, rearview, externally mountedRimpull Control SystemSeat, Cat Contour, air suspension, six-way adjustable, clothSeat belt, retractable, 76 mm (3 in) wideSTIC Control SystemTinted glassTransmission gear indicatorVital Information Management System (VIMS)

External data port, Integral Payload Control SystemMessage center, universal gaugeVIMS Keypad

Wipers/washers, intermittent, front/rear


LIFT ARRANGEMENTSStandard 0 kg 0 lbHigh Lift 2553 kg 5630 lb

LINES GROUPFuel lines without heater 0 kg 0 lbCold weather starting 32 kg 71 lb

RIMS914 mm (36") wide 0 kg 0 lb1118 mm (44") wide

with 126 mm (5") flange 531 kg 1170 lb1118 mm (44") wide

with 152 mm (6") flange 428 kg 944 lb

STARTERSAir start, vane, Ingersoll 0 kg 0 lbAir start, turbine, TDI 0 kg 0 lbElectric – not recommended in ambient

temperatures below 0°C (32°F) 193 kg 426 lb

Mandatory Attachments (select one from each group)Mandatory and optional equipment may vary. Consult your Caterpillar dealer for specifics.

BUCKETSNARROW – 5650 mm (222 in)

Rock – 15 m3 (19.5 yd3) (J800) 18 652 kg 41,120 lbRock – 17 m3 (22.5 yd3) (J800) 19 536 kg 43,070 lbRock – 19 m3 (24.5 yd3) (J800) 20 552 kg 45,310 lb

WIDE – 6220 mm (245 in)Rock – 18 m3 (23.5 yd3) (J800) 20 661 kg 45,550 lbRock – 19 m3 (25.0 yd3) (J800) 21 315 kg 46,990 lbCoal – 31 m3 (41.0 yd3) (J700) 21 723 kg 47,890 lb

GROUND ENGAGING TOOLSBUCKET TIPS*

Heavy duty – long – rock (J800) 88 kg 193 lbHeavy duty – abrasion – rock (J800) 105 kg 232 lbPenetration – rock (J800) 54 kg 120 lbHeavy duty – long – coal (J700) 51 kg 113 lbHeavy duty – abrasion – coal (J700) 66 kg 145 lb

BUCKET WINGSLow profile 350 kg 772 lb

* Requires multiple quantities.

COLD WEATHERArctic hoses 0 kg 0 lbArctic lubricants 0 kg 0 lbTransfer case heater 14 kg 30 lb

POWER TRAINCrankcase guard 300 kg 662 lbEngine prelube 23 kg 50 lb

RIMS914 mm (36 in) wide 1813 kg 3996 lb1118 mm (44 in) wide

with 126 mm (5 in) flange 1926 kg 4245 lb1118 mm (44 in) wide

with 152 mm (6 in) flange 2096 kg 4620 lbOTHER

Rockford fan without brake 0 kg 0 lbSy-Klone turbine precleaner 11 kg 25 lb

Optional Equipment

R

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

© 2001 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.

AEHQ5334-02 (12-02)

Replaces AEHQ5334-01

994D Wheel Loader

specalog for 994d wheel loader,...

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