®®

EngineEngine Model Cat® 3126B ATAACNet Flywheel Power 95 kW 128 hp

BucketsCapacity – 1.85 m3 2.42 yd3

General PurposeCapacity – 1.6 m3 2.09 yd3

Multi-Purpose

WeightsOperating Weight 15 145 kg 33,389 lb

953CTrack Loader

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953C Track LoaderLeading edge design, state-of-the art technology, and unmatched versatility in one machineallows maximum productivity.

The 953C works well in a wide range ofapplications. Excavating, clearing, strippingtopsoil, landscape contouring, grading,dozing, backfilling, hard bank digging,carrying material, and truck loading allcan be accomplished with one machine.

Reliable, durable operation.Rugged construction, self-diagnosis ofelectrical and power train systems, and easymaintenance help ensure extended servicelife with low operating costs.

Work Tools and GET

A large choice of buckets, GroundEngaging Tools (GET), and attachments,allow configuration of the 953C formaximum performance in virtuallyany job. pg. 14

✔

Special Application Arrangements

Special arrangements – Waste Handling,Shiphold and more, are available or canbe designed on request, to allow the953C to work in special applications.pg. 13

Electronic Monitoring System (EMS III)

The Caterpillar® Electronic MonitoringSystem monitors hydrostatic andelectrical systems, providing instantfeedback on the machine condition.pg. 8

Operator Station

The C-Series Track Loader is designedfor operator comfort, convenience, andproductivity. Sound suppressed ROPScab, heating and air conditioning,an adjustable air-suspension seat withside-to-side isolator, and pilot hydraulicimplement controls help reduceoperator fatigue. pg. 6

Engine

The 3126B ATAAC diesel enginefeatures a Hydraulic Electronic UnitInjection (HEUI™) fuel system andvariable speed fan drive. Designed forperformance, durability, serviceability,and fuel economy, it meets EPA Tier 2,EU Stage II and Japan MOC exhaustemission regulations. pg. 4

✔ New Feature

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Serviceability and Customer Support

The 953C design offers reducedmaintenance, convenient access tocomponents, easy diagnostic capabilities,as well as easy and economicalcomponent replacement possibilities.Cat Dealers also provide quick partsavailability. pg. 16

Structure

The box-section main frame is designedspecifically for the work of a trackloader. It provides durability, resistanceto twisting, and a solid base for allcomponents. The Z-bar linkage offersincreased breakout force and fast dumpspeed for enhanced productivity. pg. 12

SystemOne™ Undercarriage

The revolutionary Cat SystemOneUndercarriage provides maximumundercarriage life and reliability nomatter the application, environmentor underfoot conditions. Built to lastlonger and require less maintenance itensures a dramatic drop in owning andoperating costs. pg. 10

✔

Hydrostatic Drive

The hydrostatic drive with electroniccontrol provides precise modulation forquick, smooth operation and superiormaneuverability. Shorter cycle times,high efficiency, and excellentmaneuverability results in increasedproductivity. pg. 9

Cat 3126B Diesel Engine. The Cat3126B diesel engine is a six cylinder,four-cycle design that provides long,effective power strokes for high torqueand more complete fuel combustion.The 3126B is rated at 95 net kW(128 net hp) at 2,000 rpm. The 3126Bis equipped with an electronic air inletheater. The heater warms the air in theair inlet manifold for easier starting andreduced white smoke on cold starts.

Engine Installation. The engine isinstalled using rubber mounts toreduce the transfer of engine vibrationto the frame and cab, lowering operatorvibration, sound levels, and fatigue.

Rear Engine Location. Rear enginelocation allows excellent forwardvisibility, while serving as a workingcounterweight. It also helps reduceradiator plugging while providing easyservice access to the engine and othermajor components.

Fuel System. The Hydraulic-actuatedElectronic Unit Injection (HEUI) is aunique and proven high-pressure, directinjection fuel system for diesel engines.High injection pressures and shortinjection duration provide fast response,clean burning and added fuel savings.

Design. The fuel system designeliminates external high-pressure fuellines, providing efficient, precise fueldelivery, and timing.

Serviceability. Unit injectors can beserviced individually, without the needto service the whole fuel system.

Fuel Priming Pump. An electrical fuel-priming pump, standard, is locatedbetween the fuel tank and the combinedwater separator/primary fuel filter.The duel fuel filters, water separatordesign, provides protection to theinjection system against low-qualityor contaminated fuel.

Displacement-to-Power Ratio.High displacement-to-power ratioprovides extended engine life andexceptional reliability.

ADEM™ III. The Advanced DieselEngine Management – ElectronicControl Module continuously monitorsimportant engine conditions andfunctions. It precisely controls each timethe HEUI injects fuel into a cylinderand signals the machine ElectronicMonitoring System (EMS III) if aproblem occurs with the engine.

EHC Interface. The ADEM III controllerinterfaces with the hydrostatic driveElectronic Hydrostatic Control (EHC),when the engine is started, to determineif the parking brake switch is inthe “Brake-on” position and theSpeed-Direction control lever isin the “Brake-on” position inthe “reverse-V” pattern.

Electronic Engine Speed Selector.The Electronic Speed Selector Switch(A), a “rocker” switch located on theleft console, sets the engine rpm.The ADEM III engine controller willalways start the engine in low idle.Any time the switch is activated tochange the rpm of the engine, the DigitalMessage Display will automaticallyswitch to the Digital Tachometer modefor 15 seconds to show the engine rpm.

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Provides power, reliability and acts as a working counterweight in the rear of the machine,for optimum machine balance.

Engine

Turbocharger and Aftercooler. A well-matched turbocharger and air-to-airaftercooler results in increased power.The exhaust driven turbocharger packsmore air into the cylinders, while theair-to-air aftercooler cools the pressurizedair from the turbocharger, making theengine intake air denser. The increasedair in the cylinders results in morepower, improved combustion, andreduced exhaust emissions.

Variable Speed Fan Drive. A viscousclutch demand fan drive regulates thefan speed based on the cooling systemrequirements. Provides lower spectatornoise level and improved operatorcomfort along with lower fuelconsumption for the machine, as the fanparasitic will be reduced during lowercooling demand. Additionally, there isless debris plugging of the radiators dueto lower average airflow.

Extended Life Design. The enginefeatures an extended life designincluding seven main bearings thatprovide a large bearing surface areato distribute force loads in the engine.Durable single piece aluminum alloypistons are standard for long life.

Cooling System. The cooling systemincorporates into a single cooling unitthe hydraulic oil cooler, the engineradiator, and the air-to-air aftercooler.By locating the cooling system in therear of the loader, they are away fromthe dust and debris stirred up by thebucket while working.

Starting System. The ADEM III controllercontrols the electric starter motor andthe starter relay. The ADEM III preventsfuel from being supplied for startinguntil sufficient oil pressure is present.This prevents wear on the bearings dueto operating without adequate lubrication.

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L/R: hydraulic oil cooler, engine radiator, air-to-air aftercooler

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Designed for operator comfort, convenience, and ease of operation throughout the workday.

Operator Station

1. Heating and Air Conditioning.The air circulation system deliversfiltered, pressurized, and temperature-controlled air through 10 louveredvents. Air conditioning is standard oncab-equipped machines. Heater withcontrols is standard on both cab andcanopy-equipped machines.

2. Caterpillar Air-suspension Seat.The Caterpillar air-suspension seat, withside-to-side isolator, is ergonomicallydesigned and fully adjustable formaximum operator comfort and control.Cushioned side bolsters prevent sidemovement. The backrest centerlineconforms to the operator’s spinal curve.The contoured base curves away fromlower back to reduce pressure.Retractable seat belt is 75 mm (3 in)wide for positive, comfortable restraint.

3. Storage Space. Storage spacesinclude a lockable storage box, a lunchbox compartment, beverage holder, andcoat hook.

4. Armrests. Adjustable armrests canbe positioned up or down. The rightarmrest is adjustable forward andbackward. Each armrest can be inclinedto different angles for excellent operatorcomfort and control.

5. Dash Board. The newly designedsmooth, rounded dashboard withintegral defroster vents, provideall of the necessary functions andinstrumentation within the operator’snormal line of sight.

6. Hydrostatic Drive System Controls.The system controls allow quickspeed and directional changes froma single control lever for maximummaneuverability. Steering pedals can beadjusted from 35° to 50° depending onoperator preference and allow precisecontrol of each track independently andon-demand counter rotation. The brakepedal supplements dynamic hydraulicbraking provided by the hydrostaticdrive system. Pushing, digging, dozingperformance is enhanced when thetravel/work mode switch is in “workposition”. The engine is allowed to lugdown, enhancing performance. In thismode, top machine speed is limited to70% of maximum for ease of controlin tight places.

7. Speed Switches. The speed modeswitch (B) allows the operator to choosebetween “work mode” and “travelmode” for maximum drive speed, tobest match the machine speed to variousjob conditions. Switching betweentravel and work mode takes effectimmediately. The electronic enginespeed selector switch (A) is used bythe operator to set engine RPM.

8. Pilot Operated Controls. Pilot operatedimplement controls allow easieroperation and greater productivity.Choice of single-lever pilot control(standard) or two-lever (optional) isavailable for bucket lift and dump.Automatic adjustable magnetic lift andbucket kickouts allow the operator toconcentrate on positioning the machine,resulting in higher productivity.

9. Viewing Area. The viewing areaincludes tinted glass to reduce glare andprovides an excellent visibility to thebucket, tracks, and around the engineenclosure to the rear. Sun visor,windshield wipers and washers areall standard features on the cab.The front wiper has variable speed,intermittent control.

10. Rearview Mirror. The rearview mirroris located above the front windshield,maximizing the operator’s visibility.

Radio Installation Arrangement.The optional radio installationarrangement includes a 24 to 12 voltconverter and speakers. A heavy-dutyAM/FM radio/cassette player is alsoavailable.

Dome Light. A dome light is locatedabove the left door.

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EMS III Functions. The CaterpillarEMS III offers three main functions.These include quick and simplecalibration of the hydrostatic drivesystem, prevention of damage byalerting the operator if a machinefault has occurred, and monitoring ofhydrostatic and electrical systems toaid service personnel in troubleshootingand repairs.

Gauge Cluster. The gauge clustercontains four gauges, which monitor:

• Engine coolant temperature

• Pump drive oil temperature

• Hydraulic tank oil temperature

• Fuel level

Alert Indicators. The alert indicatorcluster groups the individual alertindicators for:

• Low fuel pressure

• Case drain filter bypass

• Charge filter bypass

• High pump drive (Splitter Box)oil temperature

• Low hydrostatic system chargepressure

• Low engine oil pressure

• Check engine detected by theADEM III

• Low/high alternator output

• System warning for hydrostaticdrive system

• Air inlet heater activated

Fluid Indicators. In addition to theten alert indicators, there are two lightindicators on the left side of theinstrument panel showing low fueland low coolant.

Digital Message Display. The digitaldisplay can show the operator’s choiceof hour meter, engine rpm, odometer,or service codes.

Three Level Warning System. EMS IIIalso functions as a warning system withthree levels of warning.

EMS III – Self-test. The EMS IIIself-test verifies that the main displaymodule is operating properly every timethe key start switch is turned from the“off” to the “on” position.

Product Link. EMS III, when coupledwith the Caterpillar Product LinkSystem, offers the possibility of makingmachine maintenance far easier.

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Electronic Monitoring System (EMS III)The Electronic Monitoring System offers three main functions.

Shifting. The hydrostatic driveeliminates the need for transmissionshifting, which allows the operator toconcentrate on working, maneuvering,and production.

Electronic Hydrostatic Control (EHC).The EHC maintains engine rpm inoptimum operating range and balancesthe two track drive systems for straighttravel without machine drift.

Machine Speed. The EHC automaticallyadjusts machine speed to give theequipment hydraulic system priority,while the hydrostatic system takesadvantage of all remainingengine power.

Speed-Direction Control Lever (SDL).The operator controls the speed of themachine and the direction of travelwith a single “Speed-Direction controlLever” (SDL) located on the left console.The “reverse V” pattern of the SDLis designed to prevent an accidentalfull-speed-forward command when theloader encounters sudden resistancewhile traveling forward. If the loadershould accidentally strike a dump truck,for example, inertia will tend to makethe operator’s left arm move the controlforward to the center of the “reverse V”,– which is the full-stop position. If wehad a traditional joystick control forspeed and direction, the same involuntaryarm movement would command full-speed-forward, potentially increasingthe damage to the truck.

Electronic Monitoring System (EMS III).The EHC interfaces with the EMS IIIfor system diagnostics and calibrations.It is self-diagnosing, and fully compatiblewith Electronic Technician (Cat ET)software. This allows quick and easycalibrations and troubleshooting.

Variable Displacement Pumps andDrive Motors. Variable displacementpumps and drive motors areelectronically controlled by the EHC,offering high efficiency and precisetravel. Each track is independentlydriven by a separate hydraulic circuitconsisting of one pump, connectedby Cat XT-6™ hydraulic hose andcouplings to a piston motor.

Separate Hydraulic Pumps.Separate hydraulic pumps offereasy servicing.

Maneuverability. Independent power isprovided to each track, providing greatmaneuverability, speed, and side slopeoperation. Independent power and speedfor each track allows the operator tomaintain full power to both tracks whileturning. For additional maneuverability,the operator can use counter rotation,which allows spot turns in tight locations.

Steering. The operator steers the953C by depressing the left (1) or right(2) steering pedal. The center brakepedal (3) is used to decrease the speedof the machine, assist in reducingrollback, and to stop the machine.Steering is accomplished by changingrelative pump flows and/or motordisplacements. The steering systemcauses one track to rotate slower thanthe other track. A more aggressivesteering command (pushing one footpedal down farther) will cause one trackto stop while the other track continuesto rotate. Pushing one pedal all the waydown will cause one track to reversedirection while the other track continuesto rotate in the original direction.This “counter-rotation” allows themachine to make a complete turnwithin its own length.

Travel Speeds. Travel speeds areinfinitely variable between zero and topspeed. Two speed modes, “travel” and“work”, provide two different speedranges to best match machine speed andtorque to the job conditions for maximumproductivity. Maximum travel speed isincreased to 10 kph (6.2 mph) when theswitch is set in the travel position.

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Hydrostatic DriveThe electronically controlled hydrostatic drive helps provide quick response for shorter cycletimes and increased productivity.

Revolutionary Undercarriage.The revolutionary Cat SystemOneUndercarriage provides a maximumundercarriage life for all applications,environment or underfoot conditions.Cat SystemOne will deliver the longestlife and greatest reliability of anyundercarriage. Built to last longer andrequire less maintenance, it ensuresgreater extended life and a dramaticdrop in owner and operating costs.

A) Long-life Sprocket. Extended lifesprockets will outlast two or moretracks. The rotating bushing technologyextends life.

B) Guiding System. Better, more rigidguiding. The guiding system contactslink rails instead of pin ends and helpskeep the track within the roller system.

C) Track Roller Frames. The track rollerframes are a welded, box section design,similar to the box section design of themain frame and loader tower, whichprovides strength and resistance tobending without adding extra weight.Six track rollers spread the machineweight over a larger area. This improvesstability and provides a more comfortableride for the operator. The increasedflange diameter on the rollers provideoptimum guiding.

D) Carrier Rollers. A single uppercarrier roller on each side mounts tothe machine mainframe. This mountingarrangement helps resist mud packingof the undercarriage. Redesigned carrierrollers are factory sealed and servicedas a unit. The larger diameter providesextended wear to better matchsystem life.

E) Idlers. The center tread idlers contactonly the bushing – not the links –eliminating scalloping and providingmore guiding to the link assembly.The idlers last longer because it contactsa rotating bushing instead of a link rail.

F) Cartridge Joints. Factory-sealedcartridge joints are welded to controlend play. They offer improved sealintegrity through an innovative newsealing system and do not depend on thelink interface to remain sealed. As withall new Cat undercarriage products,they are filled with special oils.

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Exclusively for Caterpillar machines the SystemOne Undercarriage is a revolutionary newundercarriage system – from the ground up.

SystemOne™ Undercarriage

A

BC

D

E

F

Track Shoes. Several track shoe typestaylor your machine for work in allunderfoot conditions.

Extreme Service Shoes.

• Work best in moderate to highimpact conditions.

• Recommended for applicationswhere the links outlast the shoes.

• More hardened wear material thanmoderate service track shoes.

Moderate Service Shoes.

• Work best in low to mediumabrasion conditions and low tomoderate impact conditions.

• All-purpose shoes recommendedfor any general application.

• Provides good penetration andtraction and resist wear and bending.

Multi-Grouser Shoes.

• Work best in applications thatrequire less penetration and traction.

• Recommended for applications thatrequire better turning capability andless ground disturbance.

• Feature two or three short grousersinstead of one tall grouser.

Trapezoidal Center Hole Shoes.

• Work best in applications wherepacking causes the track to tighten,accelerating pin and bushing wear.

• Recommended for applications withlarge amounts of debris that tend topack in the track.

• Reduces extrudable packingbetween the shoe and the bushingsince they allow the sprocket topunch out dirt and debris.

Oscillating Track Roller Frame.The oscillating track roller frame designdecreases ground induced impact loadsto the machine, increases machinestability on rough terrain, and providesa smoother, more comfortable ride forthe operator.

Pivot Shaft. Steel pivot shafts attach therear ends of the track roller frames tothe loader mainframe and carry mostof the weight. The pivot shafts transferground induced shock loads fromthe track roller frames to the loadermainframe rather than through thefinal drives. The result is longer finaldrive life.

Track Adjuster. The track adjusterand mechanical recoil system usesa large recoil spring and grease filledadjustment cylinder, which allowsthe idler to move forward and backto maintain proper track tension asit absorbs undercarriage shock loads.

Equalizer Bar. The equalizer bar ispinned in its center to the machinemainframe and at the ends to each trackroller frame. This allows the forwardends of the track roller frames to oscillate,or move vertically, to keep more trackon the ground in uneven underfootconditions. The equalizer bar alsoprovides a more stable work platformfor the operator, who will be comfortableworking at faster speeds for increasedproductivity.

Swing-Link Idler. Permits horizontalidler movement, absorbing shock loadsand maintaining proper track tension,while eliminating the need for shimsand wear strips. The removal of wearstrips eliminates a point of service andmaintenance. Cat idler provide superiorstructural support.

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1 2

3 4

(1) Extreme Service (2) Moderate Service (3) Multi-Grouser (4) Trapezoidal Center

Mainframe and Loader Tower.The mainframe and loader tower is asingle, welded fabrication with castingsand forgings incorporated at points ofhigh stress to distribute those stressesover wide areas for long structural life.

Design. Strong box-section mainframedesign, with continuous, deep-penetration welds resist twisting loadsto protect components from excessivewear or damage without adding extraweight to the machine. The frame railsconsist of two box sections, which arejoined at the rear by a box-section crossmember. Mounting points for the finaldrives, pivot shafts, and operator’splatform are integrated into eachmainframe side rail.

Four-Plate Loader Tower. The four-plate loader tower is integral with thebasic mainframe. The loader towerdistributes forces evenly from the liftarms to the mainframe, which eliminatestwisting for maximum structuraldurability. The loader tower providessolid mounting points for lift arms,lift cylinders, and Z-Bar tilt cylinder.

Castings. Steel Castings (shown in red)are used in areas of high stressconcentration. Large radius curvesdissipate stresses that could causefatigue and cracking.

Steel Frame. Fatigue resistant steelframe sections along with castingsprovide flexibility, durability andexcellent resistance to impact loads.

Durability. Structures are designed toprovide durability and extended servicelife to support multiple rebuilds.

Straddle Mounting. Straddle mountingsupports all lift arm pivot points on bothends of the pin, eliminating twistingforces and enhancing structural durability.

Z-Bar Linkage. Breakout force isexceptionally high due to mechanicaladvantage of Z-bar linkage design, andhydraulic pressure applied to the headend of the tilt cylinder. Using a singletilt cylinder and linkage provides theoperator a better view of the work area,bucket, and cutting edge.

Sealed Loader Linkage. The 953Clinkage has fewer grease points comparedto other linkage designs because everypin joint is sealed to keep grease inand dirt out. Fewer grease points andsealed pins means less downtime formaintenance allowing more workinghours between servicing.

Simultaneous Lift and Dump.Simultaneous lift and dump for fasttruck loading and smooth grading, andthe ability to meter material from bucket.

Lift Kickout. Automatic, adjustablemagnetic lift kickout and bucketpositioner allow the operator toconcentrate on positioning the machinerather than the bucket. This results inhigher efficiency for greater productivity.

Return-to-Dig. The “Return-to-dig”switch assembly is located on the tiltcylinder and rod. It sets the angle thebucket will return to after it is dumped,when the bucket lever is placed in theTilt-back – hold position.

Lift Arms. The two arms are welded intoa single unit, using a weld-fabricatedcross-tube. The fabricated cross-tubeand tilt lever use forging at high stresspoints to spread the loads for long life.

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StructureThe box-section mainframe is designed to handle heavy loads, while Z-Bar linkagemaximizes breakout force, while distributing stress loads to the mainframe.

Waste Handling Arrangements. WasteHandling arrangements provide addedversatility and are designed to make the953C perform well in sanitary landfills,or waste handling applications wherethe machine spreads, compacts, sorts,shreds and crushes materials.

Wide Gauge Arrangement. The WideGauge 953C is designed for work invery soft underfoot conditions.For enhanced flotation and stability,the track gauge has been widened andwider track shoes installed. The largertrack shoes increase the ground contactarea for reduced ground pressure.

Shiphold Arrangement. Shipholdarrangements allow the 953C to workin the confined and harsh shipholdenvironment where the machine assistsin the off-loading of bulk materials,such as iron ore, steel scrap, coal,minerals, and grain.

Custom Products Arrangements.Many other arrangements are available.For other custom-designed arrangementsfor specific applications, contact yourCaterpillar Dealer.

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Special Application ArrangementsSpecial arrangements are available, or can be designed on request, to allow the 953Cto work in special applications.

Versatility. The large variety of tasks anoperator can perform with the standardmachine and Work Tools has lead to theCaterpillar Track Loader’s reputationfor versatility.

General Purpose Bucket. The GeneralPurpose (GP) bucket is designed forexcellent loadability and long life in abroad range of applications such as hardbank excavating, stripping and stockpileloading. High-strength, low-alloysteel helps the bucket resist dentsand abrasions.

General Purpose Landfill Bucket.With the integrated trash-rack, theGeneral Purpose Landfill (GP Landfill)bucket becomes ideal for digging,loading and carrying as well as dozingand spreading material at landfills, orloading refuse at a transfer station.

Multi-Purpose Bucket. The Multi-Purpose (MP) bucket combines theperformances of a standard bucket,dozer blade and clamp. The bucketprovides maximum versatility combinedwith strength to handle a broad range ofapplications, such as loading, strippingtopsoil, clearing, bulldozing, picking updebris and fine grading.

Multi-Purpose Landfill Bucket.The Multi-Purpose Landfill (MP Landfill)bucket combines the versatility of aMulti-Purpose bucket with theperformance of a landfill design.Constructed with a trash-rack forincreased capacity, extra strengthand better load retention. Ideal forapplications in the harsh refuse market,whether digging or spreading materialat the landfill or grasping and loadingrefuse at a transfer station.

Pallet Forks. When used with a quickcoupler, Pallet Forks increase theversatility of the machine. They areideal for handling a variety of materials.

Ripper-Scarifier. The ripper-scarifieradds extra versatility to expand theapplication of the machine. Hinged-type, with three shanks, beam mountedwith two pins pressed into each sideof the mainframe. Raised and loweredwith two wide-mounted cylinders.Six-pin linkage requires no lubrication.

Additional Work Tools. Beyond the GPand MP buckets and the Ripper-scarifieryour Cat dealer offers: Side-DumpBuckets, Landfill Buckets, StraightTrim Blades, Pallet Forks, ExtendibleMaterial Handling Arms, andHorizontal Pin Quick Couplers.

Bucket Protection Options. Caterpillaroffers several types of adapters, tips,and cutting edges, which increasebucket life and maximize performance.

(1) Bolt-on adapters, tips, and bolt-onreversible edge segments providea clean working floor and increasebucket capacity. Heavy-dutysegments are available with62 percent more wear materialthan standard segments.

(2) Bolt-on, 2-strap adapters, and tips,including corner adapters, offerexcellent penetration.

(3) Bolt-on, reversible, cutting edgesare ideal when penetration is not aconsideration, such as in clean-upwork or stockpiling applications.

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A variety of attachments and Ground Engaging Tools (GET) are available to maximizeperformance in any application.

Work Tools and GET

(4) Weld-on, top-strap adapters are alsoavailable with a GP bucket. They areflush-mounted with the bottom ofthe cutting edge to provide a smoothbucket bottom and unrutted worksurface. These adapters can be usedwith any of the tip options (not witha bolt-on protection system).

K Series™ Tooth System: Cat Exclusive.The new K-Series tooth systemprovides longer tip and adapter life,faster cycle time with greater bucketfills and reduced machine strain.

Longer Tooth Life. Tips are installedwith a slight twist and secured with aone-piece retainer, providing less tipmovement and nose wear.

Stable System Geometry. Opposing,sloped rails on the adapter providefull length stabilization with minimalmovement. The tip bears directly on theend of the adapter nose to absorb thrustloads, leading to better tip retention anda longer adapter life.

Easy Installation and Removal.Opposing sloped side rails and flankskeep the tip on the nose as the retaineris being installed and removed.The one-piece vertical retainer requireslow force and no special tools, allowingfaster and easier removal and installation,amounting to less machine down timefor tip changes.

Sharper Digging Profile. Lower heightat the front and the back of the noseprovides a sharper profile. This providesmore production, less machine strainand lower cost of machine operation.

Reversible Tips. Each tip ear has aretainer groove with a locking recess.Tips can be run in one direction,then “flipped,” or reversed, to get themaximum use of wear material fromthe tip.

Tip Options. Caterpillar GET offers avariety of tips to better accommodateyour needs in any working environment,whether that is high impact or general-purpose applications.

These and other GET options areavailable from your Caterpillar Dealer.

Short Tips. Short tips are extremelystrong and are for use in high impactand pry-out work such as rock.

General Duty Tips. General duty tipsare for use in most general applicationswhere breakage is not a concern.

Heavy-duty, Tips. Heavy-duty longtips are for use in general loadingand excavation work. They havethirty-six percent more wear materialthan on standard tip. Provides increasedstrength, extended service life, and lowcost-per-hour.

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Reduced Maintenance. The 953C hasmany service features incorporated inthe machine including:

• Caterpillar Extended Life Coolantfor extended change intervals.

• Sealed electrical connectors lock outdust and moisture.

• Caterpillar XT™ hydraulic hose, inmedium and high-pressure circuits,provide high abrasion resistance andfar exceeds industry standards.

• O-Ring Face Seals (ORFS) hydrauliccouplings eliminate fluid leaks,provide positive seals, and arereusable for lower operating costs.

• Removable cab floor panels allowaccess to engine, and hystat andimplement pumps.

• Extended change intervals forengine and hydraulic/hystat oil.

• Scheduled Oil Sampling FluidsAnalysis helps avoid unnecessarydowntime. S•O•SSM fluid tapsare included to make oilsampling easier.

Service Intervals. The time betweenfluid and filter service intervals hassignificantly increased, minimizingdowntime and maximizing productivity.

Easy Component Access. The rearengine design and large engine accessdoors make it easy to reach the engine,electrical components, hydrostaticsystem, battery, and toolbox.

Hydraulic and fuel filters are locatedclose to each other.

The hydrostatic drive system featuresseparate pumps and motors forlow replacement or rebuild cost.All lubrication points are accessiblefrom ground level.

The swing-out grille, now standard,reduces downtime and the cost forcleaning, inspection, and repair of thecooling package.

Charge and Case drain Filters.Two spin-on, hydraulic oil filters forthe hydrostatic drive system, are locatedinside the right access door for easeof access.

Water Separator and Fuel Filter.The water separator and fuel filter arelocated on the right rear of the machine.

Engine Oil Filter. The engine oil filteris located just inside the left accessdoor of the machine. This makes filterchanges easier and decreases the riskof spilling oil.

Air Filter Elements. The primary andsecondary air filter elements are locatedon the left side of the machine in the aircleaner housing.

Batteries. The two maintenance-freebatteries are located together in thebattery box.

Swing-out Grille. A swing-out grille,now standard, reduces downtime andthe cost for cleaning, inspection, andrepair of the cooling package.

Hydraulic Oil Tank. The hydraulic oiltank, common for both the power trainand the implement hydraulic systems,is located at the front of the machinebetween the lift arms.

Radiator Pressure Cap. The radiatorpressure cap is located below the coveron top of the engine hood.

Precleaner Bowl. The precleaner bowlfor the engine air intake system is locateddirectly behind the operator’s station.

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Simplified service and extended service intervals means more productive uptime.Caterpillar. The difference counts.™

Serviceability and Customer Support

Fuse Panel. The fuse panel is locatedinside the cab, behind the trim panelunder the Speed-Direction controlconsole.

Removable Cab Floor. Removablecab floor panels create easy accessto internal components.

Product Link. This option allows thecustomer or dealer to obtain machinediagnostics and location from theiroffices. Product Link provides updateson service meter hours, machinecondition, machine location, andintegrated mapping/route planning.

Easy Diagnosis. The ElectronicMonitoring System (EMS III) andself-diagnosing Electronic HydraulicControl (EHC) work together to warnagainst both occurring and impendingfaults to reduce downtime.

S•O•S Fluid Taps. Simplifies drawingfluid samples for Scheduled OilSampling and reduces samplecontamination.

Quick-Connect Fittings. The quick-connect hydraulic fittings allow quickdiagnosis of the hydrostatic drive andthe implement hydraulic systems.Clustered for easy access.

Service Switches. Service switches leta service technician access informationin the Equipment Monitoring System(EMS III) and the ElectronicHydrostatic Control (EHC).

Product Support. Your Cat Dealeroffers a wide range of services that canbe set up under a Customer SupportAgreement (CSA) when you purchaseyour equipment. The dealer will helpyou choose a plan that can covereverything from the machine andattachment selection to replacement.This will help you get the best returnon your investment.

Service Capability. Whether in thedealer’s fully equipped shop or inthe field, you will get trained servicetechnicians using the latest technologyand tools.

Selection. Make detailed comparisonsof the machines you are consideringbefore you buy. How long do componentslast? What is the cost of preventivemaintenance? What is the true cost oflost production? Your Cat Dealer cangive you answers to these questions.

Purchase. Consider the financingoptions available as well as day-to-dayoperating costs. This is also the timeto look at dealer services that can beincluded in the cost of the machineto yield lower equipment owning andoperating costs over the long run.

Maintenance. More and moreequipment buyers are planning foreffective maintenance before buyingequipment. Choose from your dealer’swide range of maintenance services atthe time of your purchase. Repair optionprograms guarantee the cost of repairsup front. Diagnostic programs such asScheduled Oil Sampling and TechnicalAnalysis help avoid unscheduled repairs.

Remanufactured Components.Save money with remanufacturedparts. You receive the same warrantyand reliability as new products at acost savings of 40 to 70 percent.

17

18 953C Track Loader specifications

Drive System

Type Hydrostatic drive withinfinite machine speedsto 10.0 km/h (6.2 mph)

Drive Pump Two, variable-displacement,slipper-type axialpiston pumps

Track Motor Two,variable-displacement,link-type piston motors

Relief Valve Setting 44 000 kPa 6,380 psi

Hydraulic System – Equipment

Type VaneOutput 120 L/min 31.7 gal/minMain Relief Valve Setting 24 000 kPa 3,481 psiLift Cylinders – Bore 120.65 mm 4.75 inLift Cylinders – Stroke 711 mm 28 inTilt Cylinders – Bore 139.7 mm 5.5 inTilt Cylinders – Stroke 478 mm 18.8 in

Hydraulic System – Pilot

Output – Maximum 12 L/min 3.2 gal/minRelief Valve Setting 2850 kPa 413 psiCycle Time – Raise 6.9 SecondsCycle Time – Dump 1.3 SecondsCycle Time – Lower, Empty, 2.6 SecondsFloat Down

• With simultaneous raise and dump, dump time is includedin raise time.

Service Refill Capacities

Fuel Tank 233.5 L 62 galCooling System 26 L 6.9 galCrankcase (with Filter) 18 L 4.8 galFinal Drives (each) 15.5 L 4.1 galHydraulic System (Equipment, 110 L 29.1 galPower Train and Tank)Hydraulic Tank 67 L 17.7 galPump Drive Box 3.8 L 1 galPivot Shaft 0.8 L 0.2 gal

Engine

Engine Model Cat 3126B ATAACNet Flywheel Power 95 kW 128 hpNet Power – Caterpillar 95 kW 128 hpNet Power – ISO 9249 95 kW 128 hpNet Power – SAE J1349 95 kW 128 hpNet Power – EEC 80/1269 95 kW 128 hpBore 110 mm 4.33 inStroke 127 mm 5 inDisplacement 7.2 L 439 in3

• Engine ratings at 2,000 rpm.

• Meets the U.S. EPA Tier 2, European Union Stage 2 andJapan MOC exhaust emission regulations.

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

• No derating required up to 4573 m (15,000 ft) altitude.

Undercarriage

Track Shoe Type Double Grouser, ExtremeService

Track Shoe Width – Standard 500 mm 20 inTrack Shoe Width – Optional 380 mm 15 inTrack Rollers – Each Side 6.0Number of Shoes – Each Side 37.0Track on Ground 2345 mm 92.4 inGround Contact Area – 2.3 m2 3,565 in2

Standard ShoeGround Contact Area – 1.8 m2 2,790 in2

Optional ShoeGround Pressure – 65.8 kPa 9.5 psiStandard ShoeGround Pressure – 84.1 kPa 12.2 psiOptional ShoeGrouser Height – 35 mm 1.4 inDouble GrouserTrack Gauge 1800 mm 71 in

• Super LGP arrangement available for lower ground pressureapplications.

• Ground pressure is calculated using operating weightof machine with GP bucket, teeth and segments.

19953C Track Loader specifications

Ripper Specifications

Type RadialNumber of Pockets 3Overall Width/Beam 1952 mm 76.9 inShank Cross Section 50 x 109 mm 2.0 x 4.3 inGround Clearance 507 mm 20 inPenetration 290 mm 11.4 inRipping Width 1800 mm 70.9 inCylinders – Bore 101.6 mm 4 inCylinders – Stroke 270 mm 10.6 inAddition to Machine 247 mm 9.7 inLength due to Ripper (in Transportation Position)

Standards

ROPS/FOPS ROPS/FOPSBrakes BrakesCab Cab

• ROPS (Rollover Protective Structure) offered by Caterpillarfor the machine meets ROPS criteria SAE J397 OCT95,SAE J1040 MAY94, ISO 3164:1995, ISO 3471:1994.

• FOPS (Falling Object Protective Structure) meetsSAE J231 JAN81, ISO 3449:1992 Level II.

• Brakes meet the standard SAE J1026 APR90, ISO 10265:1998.

• The operator sound exposure Leq (equivalent soundpressure level) measured according to the work cycleprocedures specified in ANSI/SAE J1166 MAY90 is 82 dB(A),for cab offered by Caterpillar, when properly installed andmaintained and tested with the door

• 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 meters (49.2 ft) according tothe test procedures specified in SAE J88 APR95, mid-gear-moving operation, is 77 dB(A).

Electrical System

Type 24V DCBattery Capacity 750 CCABattery Voltage 12Battery Quantity 2Alternator 70 amps, Heavy-Duty

Brushless

Weights

Operating Weight 15 145 kg 33,389 lbShipping Weight – 13 732 kg 30,274 lbwithout Bucket

• Operating Weight: Includes coolant, lubricants, 100% fueltank, ROPS/FOPS cab, General Purpose Bucket with longbolt-on teeth and segments and 75 kg/165 lb operator.

• Shipping Weight: Includes coolant, lubricants, 10% fuel tank,ROPS/FOPS cab and no bucket.

Buckets

Capacity – General Purpose 1.85 m3 2.42 yd3

Capacity – Multi-Purpose 1.6 m3 2.09 yd3

Bucket Width – General Purpose 2380 mm 93.7 inBucket Width – Multi-Purpose 2378 mm 93.6 in

• Bucket widths are based on a bare bucket.

• Bucket capacities are with long bolt-on teeth and segments.

Operating Specifications

Max. Travel Speed 10 km/h 6.2 mph

20 953C Track Loader specifications

System One1 Overall machine width without bucket:

with standard tracks – 500 mm (19.7 in shoes) 2300 mm (90.5 in)

with narrow tracks – 380 mm (14.9 in shoes) 2060 mm (81.1 in)

2 Ground clearance from face of shoe 410.5 mm (16.2 in)

Grading angle 74°

3 Machine height to top of cab 3160.5 mm (124.4 in)

4 Length to front of track 4350 mm (171.3 in)

5 Overall machine length �6 Carry position approach angle 15°

7 Digging depth �8 Maximum rollback at ground �9 Maximum rollback at carry position �10 Bucket height in carry position �11 Reach at full lift height �12 S.A.E. specified dump angle 45° (56° max.)

13 Maximum rollback, fully raised 56°

14 Dump clearance at full lift height and 45° discharge �15 Height to bucket hinge pin 3595.5 mm (141.6 in)

16 Overall machine height, bucket fully raised �17 Height to top of seat with headrest 2624.5 mm (103.3 in)

18 Height to top of stack 2664.5 mm (104.9 in)

� Dimensions vary with bucket. Refer to Operating Specifications chart.

DimensionsAll dimensions are subject to change without notice.

16

15

14

7

9

8

1

183

10

17

1211

13

64

5

2

21953C Track Loader specifications

Rated bucket capacity †(Nominal heaped)

Struck capacity †

Bucket width – overall

Bucket weight

Dump clearance at full lift and 45° discharge †

Reach at 45° discharge angleand 2133 mm (84 in) clearance †

Reach at full lift and 45° discharge

Digging depth †

Maximum rollback at ground

Maximum rollback at carry position

Bucket height in carry position

Overall machine lengthBucket level on ground

Overall machine height with bucket at full raise

Static tipping load

Breakout force – with tilt cylindersBucket level at ground

Operating weight*

1.75 1.85 1.85 1.75 2.00 2.10 2.102.29 2.42 2.42 2.29 2.61 2.74 2.74

1.45 1.55 1.55 1.45— — —

1.90 2.03 2.03 1.90

2380 2432 2397 2438 2378 2536 237893.7 95.7 94.4 96.0 93.6 99.8 93.6

951 1175 1101 1052 1508 1785 16262,097 2,590 2,427 2,370 3,325 3,935 3,585

2903 2749 2857 2748— — —

114.3 108.2 112.5 108.2

1518 1607 1529 1633— — —

59.8 63.3 60.2 64.3

974 1162 1030 1165— — —

38.3 45.7 40.6 45.9

96 131 121 96— — —

3.78 5.16 4.76 3.78

41° 41° 41° 41° — — —

48° 48° 48° 48° — — —

422 422 422 422— — —

16.61 16.61 16.61 16.61

5879 6122 5951 6125— — —

231.5 241.0 234.3 241.1

4871 4871 4871 4871 5344 5344 5344191.8 191.8 191.8 191.8 210.4 210.4 210.4

10 689 10 395 10 492 10 556 10 170 9808 10 03423,565 22,917 23,131 23,272 22,421 21,623 22,121

136.3 122.7 123.5 138.1— — —

30,641 27,584 27,764 31,046

14 921 15 145 15 071 15 022 15 558 15 835 15 67632,895 33,389 33,226 33,118 34,229 34,910 34,560

m3

yd3

m3

yd3

mmin

kglb

mmin

mmin

mmin

mmin

Deg

Deg

mmin

mmin

mmin

kglb

kNlb

kglb

General purposebucket

Landfill bucket

Bare

Bolt-onteeth &

segments

Bolt-oncuttingedge

Bolt-oncuttingedge Bare

Bolt-onteeth &

segments

Flushmounted,weld-on

adapters &tips

* Includes coolant, lubricants, full fuel tank, ROPS cab, bucket and 75 kg/165 lb operator.† Specifications and ratings conform to all applicable standards recommended by the Society of Automotive Engineers.

SAE Standard J732 JUN92 and SAE Standard J742 FEB85 govern loader ratings.

ROPS canopy only (cab removed) -350 kg -551 lb -332 kg -732 lb

Ripper with 3 shanks (bumper removed) +376 kg +829 lb +655 kg +1,444 lb

Rear bumper (removal) -207 kg -456 lb -423 kg -932 lb

Change InOperating Weight

Change In StaticTipping Load

NOTE: Machine stability can be affected by the addition of other attachments. Add or subtract to/from machine operating weight and statictipping load.

Operating Specifications

22 953C Track Loader specifications

Rated bucket capacity †(Nominal heaped)

Struck capacity †

Bucket width – overall

Bucket weight

Dump clearance at full lift and 45° discharge †

Reach at 45° discharge angleand 2133 mm (84 in) clearance †

Reach at full lift and 45° discharge

Digging depth †

Maximum rollback at ground

Maximum rollback at carry position

Bucket height in carry position

Overall machine lengthBucket level on ground

Overall machine height with bucket at full raise

Static tipping load

Breakout force – with tilt cylindersBucket level at ground

Operating weight*

1.50 1.60 1.601.96 2.09 2.09

1.25 1.35 1.351.63 1.77 1.77

2378 2536 237893.6 99.8 93.6

1324 1601 14422,919 3,530 3,179

2728 2556 2677107.4 100.6 105.4

1404— —

55.3

949 1121 100037.4 44.1 39.4

147 181 1715.79 7.13 6.73

42° 42° 42°50° 50° 50°

— — —

6036 6279 6108237.6 247.2 240.5

4862 4862 4862191.4 191.4 191.4

10 354 9992 10 21822,827 22,029 22,527

107.1 97.4 97.924,077 21,896 22,009

15 374 15 651 15 49233,894 34,505 34,154

m3

yd3

m3

yd3

mmin

kglb

mmin

mmin

mmin

mmin

Deg

Deg

mmin

mmin

mmin

kglb

kNlb

kglb

Multi-purposebucket

Bare

Bolt-onteeth &

segments

Bolt-oncuttingedge

* Includes coolant, lubricants, full fuel tank, ROPS cab, bucket and 75 kg/165 lb operator.† Specifications and ratings conform to all applicable standards recommended by the Society of Automotive Engineers.

SAE Standard J732 JUN92 and SAE Standard J742 FEB85 govern loader ratings.

Operating Specifications

23953C Track Loader specifications

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

POWER TRAINAir inlet heaterDemand fanEngine, Cat 3126B HEUI diesel with ATAAC

turbocharged, with ADEM III ControllerFilters, air (radial seal)Fuel priming pump, electricPre-cleaner, air intakeRadiator guard, HD, perforated

UNDERCARRIAGESprocket guardsSprocket rims, segmentedTrack shoes, 500 mm (20.1 in) SystemOne track shoesTrack adjuster, hydraulicTrack guiding guards, end sectionTrack idlers, lifetime lubricatedTrack rollers (6), one upper carrier roller

lifetime lubricatedTrack shoes, 500 mm (19.7 in), double grouser,

extreme serviceTrack shoes, 500 mm (20.1 in) SystemOne

OTHER STANDARD EQUIPMENTBucket positioner, automaticBumper, rearCoolant, extended lifeCooler, hydraulic oilCrankcase guard, fullHitch, front retrievalEngine enclosure, lockable doorsLift kickout, automaticO-ring face seal couplingsRadiator grille, swing-outS•O•S valvesVandalism protection – fuel tank cap with padlock,

three padlocks for front service doors and radiator capaccess door

XT Hoses

ELECTRICALAlarm, back-upAlternator (24-volt, 70-amp)Batteries, Cat premium, heavy-duty (900 CCA)Electronic Hydrostatic Control (EHC)Electronic Monitoring System (EMS III)Lights (2), ROPS mounted, forward facing (halogen)Lighting system (halogen) four lights, 2 forward, 2 rearPower outlet, 12-voltStarting motor, 24-volt electric

OPERATOR ENVIRONMENTAdjustable steering pedalAir conditionerArmrests, adjustableAshtray, lighter (24-volt)Cab, pressurized and sound suppressed

tinted glass, (ROPS/FOPS)Coat hookControl, single lever, pilot operated

for implement hydraulicsCup holderHeater and defrosterHornInstrumentation, gauges

Engine coolant temperature, fuel level, hydraulic oil temperature, pump drive gear box oil temperature

Instrumentation, warning indicatorsAir inlet temperature, case drain filter bypass,

case drain filter bypass, charge oil pressure, check engine, electrical charging (too high/too low),engine oil pressure, fuel pressure, hydrostatic drivesystem, pump drive (splitter box) oil temperature

Key startMirror, review (internal)Parking brake switch, brake-on indicator lightRadio ready, 24-volt to 12-volt converter,

speakers, antenna, mounting bracketSeat, (cloth) air-suspension with side-to-side isolatorSeat belt, retractableSound suppression, spectatorSpeed mode switch, (work-travel)Storage compartments under armrests

(lockable on right armrest)Adjustable steering pedalsWipers/washers (front and rear)

Intermittent front wiper

24 953C Track Loader specifications

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

Canopy, ROPS (cab removed) includes rearview mirror, 2 forward facing lights, heater, vinyl seat and vandalismprotection consisting of cab vandalism package plusinstrument panel guard group with padlock

Controls (for equipment hydraulic system)Two-lever controls3rd valve for use with lines for front or rear attachmentsDiverter valve for use when both front and rear lines

are requiredCounterweights – 2 arrangements

LightHeavy

Drawbar hitchGuards:

Cab/canopy lightsHeavy-duty bottom guardsIdlerSeal protection – final drive, pivot shaft, and idler sealsTrack roller

Ripper/scarifier – with three ripper shanks, bumper removedStarting aids:

Engine coolant heater, 120- or 220-voltSystemOne™ Undercarriage:

Track, 800 mm (31.5 in) DBL GR (37 SEC)Track, 380 mm (15 in) DBL GR (37 SEC)Track, 500 mm (19.7 in) DBL GR, w/center hole (37 SEC)

Antifreeze for temperatures between –37° C (–34° F) and –50° C (–58° F)

Anti-theft, Machine Security System (MSS)Buckets:

General purpose 1.75 m3 (2.25 yd3)General purpose with flush-mounted adapters 1.75 m3

(2.25 yd3)Multi-purpose 1.5 m3 (2.0 yd3)

Bucket cutting edge, reversible, with end bits, sharpened, bolt-on for GP or MP buckets

Bucket bolt-on adapters and tips for GP or MP bucket, set of 8, includes corner adaptersHeavy duty 166 366General duty 160 353Penetration 158 348

Bucket edge segments, bolt-on for GP or MP bucketBucket teeth, weld on, flush mounted adapters, set of 8,

includes corner teeth for GP and MP bucketsBucket tips for use with flush adapters (on GP bucket), set of 8

Heavy dutyBumper (removal)

953C Track Loader specifications 25

Notes

26

Notes

27

Notes

R

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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.

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trademarks of Caterpillar and may not be used without permission.AEHQ5541-02 (10-05)

953C Track Loader