Specalog for 525C Wheel Skidder, AEHQ5670-01

®®

EngineEngine Model Cat® C7 ACERT™Gross Power – SAE J1995 146 kW 196 hp

DimensionsWheelbase 3534 mm 139.2 in

WeightsEst Operating Weight 17 711 kg 39,045 lb

• Operating weight includes enclosed cab, 30.5 tires,decking blade, arch, bunching grapple, winch

GrappleBunching Capacity 1.16 m2 12.5 ft2

Thinning Capacity 1.34 m2 14.4 ft2

525CWheel Skidder

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525C Wheel SkidderThe 525C wheel skidder sets the standard for productivity and durability.

Engineered to exceed customer expectationsin the toughest applications. Caterpillarquality, improved serviceability andproductivity provide maximum uptimeand lower owning and operating costs.

Customer Support

Your Cat dealer offers support you cancount on, from purchase options tooperator training, maintenance programsand unmatched parts availability … allto keep your Cat skidder up and runningwhen you need it. pg. 12

Serviceability

The 525C is designed to make regularmaintenance easier, extend serviceintervals, and reduce the time requiredfor maintenance. pg. 11

✔

Hydraulics

The state-of-the-art closed-center,variable displacement, pressurecompensating hydraulic systemprovides power for braking, steering,blade and grapple functions. pg. 6

Power Train

The field-proven Cat torque converter,heavy-duty transmission and highperformance axles improve availability,performance and productivity, whileminimizing fuel consumption. pg. 5

Engine

The Cat® C7 engine with ACERT™technology is field proven and U.S.EPA Tier 3 compliant. The industryleading Caterpillar® lock up torqueconverter automatically engages/disengages direct drive for maximumefficiency, performance and productivity.pg. 4

✔

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✔ New Feature

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Work Tools

Large Cat grapples maximizeproduction with a new tong profile andhigher clamping forces. Raised edgesand wear resistant cast tips provideadded durability. The hydraulic winchis ideal for self-retrieval and log trucktowing. pg. 10

✔

Operator Station

Finger tip gear selection, 1/4 turnsteering, improved ergonomic controllayout and reduced operator lever effortcontribute to the most comfortableoperator environment. pg. 8

✔

Structures

The 525C structures are Caterpillardesigned and manufactured for themost demanding logging conditions.Durable box section mainframes anddecking blade provide superior strength.pg. 7

✔

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Cat C7 Engine. The Cat C7 usesCaterpillar’s breakthrough ACERT™Technology to meet exhaust emissionreduction standards. It features efficientair management, fuel delivery andelectronic control for high productivityand exceptional service life.

Engine Design. This four-stroke engineprovides efficient fuel combustion.Precise engineering and thoroughtesting assure durability, reliability andplenty of power. Built-in serviceabilityand excellent fuel economy loweroperating costs.

ACERT™ Technology. Caterpillaroptimizes engine performance whilemeeting EPA Tier 3 regulations.ACERT™ Technology reducesemissions during the combustionprocess by using advanced technologyin the air and fuel systems, in conjunctionwith integrated electronics. Caterpillarmeets emission regulations at thecombustion source rather thanrecycling exhaust gases.

ADEM A4 Control Module. Controls thefuel injector solenoids to monitor fuelinjection. This system provides automaticaltitude compensation, and it will notallow the engine to fire until it has oilpressure, acting as cold start protectionand a form of pre-lube.

Turbocharger. The C7 features a wastegate turbocharger that provides highboost over a wider range, improvingengine response and peak torque, aswell as providing outstanding low-endperformance.

Maintenance. The C7 engine reducescosts and downtime with a 500-hour oilchange interval. Extended serviceintervals can save thousands of dollarsover the life of a machine. Machines areequipped with Caterpillar high efficiencyoil filters, whose revolutionary designdoubles efficiency without increasingthe change interval.

Water Pump. A dual thermostat controlimproves coolant flow and heatdissipation, resulting in better durability.

Electronic Transfer Pump. The electricfuel transfer pump is self-priming,eliminating the need for a manualpriming pump.

Reliability Features. The C7 offersmaximum reliability and responsethanks to a range of features:

• Improved fuel injectors and pump

• Leak-free design

• Higher cylinder pressures

• Reinforced cylinder block

Leak-Free Design. Improved jointsthroughout the engine reduce the chanceof leaks. The oil pan seal, timingcover and block to flywheel housingincorporate a leak-free design provenin thousands of Cat on-highway truckengines in the field.

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EngineThe Cat power train delivers top performance, power, and durability.

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Five-Speed Transmission. The fieldproven Cat power shift countershafttransmission easily matches enginepower to the load size and groundconditions. Electronic control makesfingertip controls possible, reducingoperator fatigue and improving comfort.

Gear Application. Gear ratios arecarefully designed to maximizeproductivity in specific cycle segmentsand under specific loads.

• Gear 1 provides highest rimpullcapability for heavy loadapplications.

• Gears 2, 3 for normal loads andhigher speed operations.

• Gears 4, 5 provide excellent emptyreturn and roading speeds.

Electronic Clutch Pressure Control.The C-Series Skidders have anadditional transmission feature foradded performance and operator comfort– the Electronic Clutch Pressure Control(ECPC). This unique feature providessmoother shifting and increases skiddingperformance by regulating and modulatingthe individual clutches based on currentoperating conditions.

Torque Converter. The large, heavy-duty torque converter maximizes theproductivity of the entire drive train.The torque converter is matched to theCat C7 engine for excellent rimpull andskidding performance. This lock-uptorque converter has proven itsdurability over thousands of hoursof punishing loads.

Improved Productivity. The torquemultiplication capability of the torqueconverter reduces the need for theoperator to continually shift thetransmission to maintain good skidderperformance, as is required oncompetitive skidders. This reducesoperator effort and improves machineproductivity.

Lock-up Clutch. The integral lock-upclutch allows the machine to operate inconverter drive for greater rimpull, ordirect drive for high efficiency haulingand faster travel speeds. Direct drivecapability allows up to 15% highertravel speeds when the lock-up clutchis engaged.

Auto Lock-up. The lock-up clutchautomatically engages accordingto ground speed and engine speedconditions. This feature is handledelectronically and allows for increasedtravel speeds in the same gear.

Reduced Operating Costs. Torqueconverter direct drive capability,combined with the lock-up differential,reduces wheel slip. This minimizesrutting and soil damage in straight-ahead pulls on weaker soil. In turn, itminimizes tire wear, component stressand fuel consumption, reducing totaloperating costs.

Differential Locks. Normal operation iswith the differential locks in both axlesdisengaged, meaning the all four wheelsare free to drive independently. Lockinga differential forces both wheels on anaxle to turn in sync with each other.

Both front and rear differential locks areeasily engaged and disengaged with aconveniently located switch on the righthand console. Hydraulically actuateddifferential locks allow for on-the-goengagement or disengagement.

Axles. Axles feature a full length oil sumpwith splash lubrication for excellentheat rejection and long component life.The 525C is available with two axleoptions – Standard Duty axles are usedfor most applications and tire sizes upto 30.5 � 32. A Wide Axle option isavailable for use in moderate to severeapplications, or when using dual tires,wide flotation tires or chains.

Front Axle. The front axle features apinion-mounted design and a heavy-dutyhousing, eliminating the need for thefront axle guard.

Pivot Design. The oscillation pivot designprovides industry leading ride comfort.

• 15° oscillation absorbs minor shockloads caused by stumps and holesand helps isolate the cab from axlemovement for a smoother, morecomfortable ride.

• Front axle oscillation also providesexcellent fore-aft stability for largecapacity grapples and dual functionarches.

Brake Components. Brake componentsare housed inside the axles, protectingthem from dirt, dust and wet groundconditions. Inboard brakes allow forsplash lubrication and cooling. They arevirtually maintenance free, and providereliable brake performance in the mostdemanding logging applications.

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Power TrainThe integrated Cat power train delivers dependable, relentless pulling power.

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Load Sensing Hydraulics. A loadsensing variable displacement pumpand pressure compensating systemcontinually monitor hydraulic powerrequirements, then provides powerbased on demand.

Lower Power Consumption. The variabledisplacement hydraulic pump drawsengine power only when braking,steering, dozer or grapple actuationdemands flow or pressure. This conservesengine horsepower and increases fuelefficiency.

Cooling Demands. Load sensinghydraulics provide flow only whenneeded, saving fuel and generatingless heat, allowing the cooling systemto allocate more capacity to the engine,transmission and torque converter.

Oil Cooler. The oil cooler is locatedabove the radiator for better hydraulicoil cooling performance and to makeradiator cleanout easier.

Auto-Grab Feature. Auto-Grab,engineered by Caterpillar, constantlymonitors tong pressure and adjusts asneeded to securely hold grapple loadswhile skidding. It is easily activatedon demand by a switch located on theright-hand control lever.

Cat ToughGuard™ Hoses. CaterpillarXT®-3 ToughGuard™ hoses improvehose life in the grapple, arch, boomand across the hitch. ToughGuard hoseshave been very successful in reducingearly hour hose failures. O-ring faceseals assure rock-solid connections thatmaintain pressure and reduce oil leaks.

Steering. Fully hydraulic control.Meets the following standards:SAE J1511 OCT90, ISO 5010-1992.

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HydraulicsState-of-the-art hydraulic system provides dependable power and maximum efficiency.

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Box-Section Construction. Caterpillardesigned and manufactured box sectionstructures set the industry standard forreliable, durable main frames. Extensivecomputer analysis and field-testingresulted in the design of the 525C.

Absorbs Twisting and Shock Loads.Frames can absorb twisting and impactforces to provide a sound foundationand well-balanced system for the entirestructure.

Superior Balance. Low center of massand weight forward design createexcellent skidder balance.

Maneuverability. The 525C skidderprovides the tightest turning radius forsuperior maneuverability while stillmaintaining the excellent balancerequired for high capacity skidding.

Caterpillar Manufacturing. The frontand rear frames are robotically weldedand manufactured by Caterpillar toensure the highest level of qualityand durability.

Hitch. A heavy-duty center sectionfeatures oversized plates and bosses todisperse forces. A large double-taperedroller bearing is used on the lowerhitch for reduced flexing stress andmaintaining tight joints.

Hitch Pins. The wide hitch pin spreadsignificantly reduces horizontal loadingon hitch pins and bearings for greaterdurability and extended pin and bearinglife. The extra room also increaseshydraulic hose clearance and makeshose routing easier.

Fenders. Rear frame fender options areavailable for both grapple and cablearrangements.

Arches and Booms. All Caterpillararches use box-section construction,and are thoroughly tested to exceeddurability requirements.

Single Function Arch. This high strengthdesign is simple to operate and is ideallysuited for logging conditions wheremaneuverability is not limited by groundconditions. This arch is best suited foruse with the bunching head grapple.

Dual-Function Arch. The 525C isavailable with a dual function arch andcompatible with a sorting or bunchinghead. The dual-function arch offersvariable reach, which minimizes machinemaneuvering to pinpoint a load with thegrapple, and large grapple capacities.

Cable Arch. Allows outstanding lineskidding performance with a two-positionadjustable height fairlead to match siteconditions.

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StructuresThe 525C mainframe, hitch and decking blade are designed and built to surpass theexpectations of the logging industry.

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Comfortable Work Station. The workstation incorporates years of cab designinnovations to maximize operatorcomfort and productivity.

Air Suspension Seat. Standard airsuspension seat swivels 30° to the rightfor maximum comfort, while allowingthe operator to observe skidder andgrapple operations to the rear.

Sealed Cab. The pressurized cab issealed from exterior air (with windowsclosed) for efficient heating and cooling.Tight door and window casings alsokeep out dust, fumes and insects.

Air Conditioning. Standard with theenclosed, pressurized cab, air conditioninghelps the operator concentrate on workrather than environmental distractions.A dedicated cab filter assures clean air.

Windows. Tough polycarbonatewindows protect the operator, and arelarge enough for an excellent side andrear view, increasing operator confidenceand productivity. Sliding glass windowsprotected by metal screens in both doorsprovide fresh air and communicationoutside the machine.

Sound Insulation. With the optionalenclosed cab, ample sound insulationkeeps interior sound levels low.Reduced sound levels meet operatorenvironment regulations and significantlyboost operator comfort, especially onlong shifts.

Cab Mounting. The modular ROPS/FOPScab is resiliently mounted to the skidderframe, reducing vibration for greatercomfort and a quieter ride.

Machine Controls. The comfortableoperator environment uses ergonomicallydesigned and placed machine controlsto reduce fatigue and increaseproductivity.

Steering. Column tilts and telescopes tofit any size operator. The quarter-turnsteering wheel quickly and accuratelycontrols 90 degrees of machinearticulation delivering excellentmaneuverability and productivity.

Transmission Controls. Transmissioncontrols for forward, reverse and gearrange are located on the steering wheelfor easy fingertip control. The operatorcan control machine functions withminimal effort, allowing greaterconcentration on skidding operations.The result is higher productivity andreduced operator fatigue.

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Easy to operate, fingertip controls, less fatigue

Operator Station

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Governor Pedal. The governor pedal islocated to the right for more clearancebetween the brake pedal, and forimproved operator comfort.

Single-lever Grapple Control. A singlefour-function joystick control has topmounted switches for grapple openand close, tong rotate, and Auto-GrabSystem activation. The control issimple, convenient and easy to use.

Decking Blade Control. The deckingblade control is located on the rightside console. This location providesfor precise control for various deckingand clearing functions while reducingoperator fatigue.

Auto-Grab Switch. The Auto-Grabsystem monitors and adjusts tongpressure as needed to maintain asecure grip on grapple loads.

Lock-up Torque Converter Drive.When activated by a switch on the maindashboard, the machine will automaticallyswitch between operation in fuel efficientdirect drive mode or torque converterdrive for maximum rimpull in toughskidding applications.

Differential Lock Switch.Ergonomically located rocker switchallows quick engagement of differentiallocks when needed.

Monitoring Controls. Convenientlylocated and easy-to-see gauges anddisplays make monitoring machinesystems as simple as possible.

Gauges. Four gauges indicate enginecoolant temperature, hydraulic oiltemperature, torque converter oiltemperature, engine rpm and fuel level.

Caterpillar Monitoring System.Monitors fuel, temperatures, vitalelectrical systems, gear speed anddirection. A three-level warning systemalerts the operator of potential problems.

Additional. The right hand console hasa standard 12V outlet for poweringauxiliary equipment. The cab is pre-wired and fitted for an entertainmentradio, and a CB type 2-way radio.

ROPS/FOPS. FOPS (Falling ObjectProtection) and ROPS (Roll-OverProtection) guards offer protectionto the operator and the machine.

9

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Reliable, Productive Grapples.Caterpillar designed and manufacturedgrapples use box section constructionfor ultimate durability. The tongcurvature reduces the time it takesto bundle the load, and higher clampforces deliver excellent load retentionfor secure hauls to the landing.

Bunching Grapples. Bunching grapplesare designed for harvesting mid-to-largediameter trees, usually felled by amechanical feller buncher. Its large tongopening is designed to gather a largenumber of these stems per cycle formaximum loading. It is heavier than thesorting grapple, but its large capacityholds more stems for improved productionin smaller trees and large loads.

Thinning Grapples. Thinning grapplesare designed for harvesting smalldiameter trees, usually felled by amechanical feller buncher. Its large tongopening is designed to gather a largenumber of these small stems per cyclefor maximum loading. Cat grapplesoffer large capacity for maximumperformance and productivity.

Sorting Grapples. Sorting head grapplesare designed primarily for use in skiddinglarger, inconsistent diameter timber.The “scissor” action of the tongs is wellsuited for gathering individual logs.

Grapple Snubber. Reduces grappleswing, hydraulic hose stress andimproves component life.

Flow Divider. The high capacity flow-divider delivers reliable operation andmaintains consistent tong sequencing.

Hydraulic Winch. The 525C featuresan electronically controlled hydraulicwinch for grapple applications, replacingthe mechanical winch. The hydraulicwinch improves application flexibilityby allowing the tractive effort to beused while winching, and eliminatingthe continuously rotating driveshaft.

The high capacity winch has fourfunction controls: reel-in, reel-out,brake-on, and free-spool. This winchis driven and controlled by the mainimplement hydraulic system.

Cable Winch. An electro-hydrauliclever controls the winch hydrauliccontrol valve, located on the winch case.The integrated software electronicallyprotects free-spool clutches.

The C-500 mechanical winch isavailable on cable skidders wherehigher line speeds and max drum pullare important. Winch sump oil is usedfor hydraulic control and lubrication.

Decking Blade. The decking bladeefficiently clears landings and roads,and maintains log decks. It features boxsection steel arms for superior strengthand durability. Decking blade pusharmsare mounted directly to the mainframefor excellent strength, and set lowerand forward for efficient clearing ofslash and debris as well as log deckmaintenance. The electro-hydrauliccontrol improves operator comfortand control of the decking blade.

• Heat-treated bolt-on edge andmaintenance-free pivot joints foroutstanding durability.

• The 525 C is available withfour blade options to allow it to becustomized to many different typesof operating conditions:

– No Blade – for industrialapplications

– Narrow Decking – 85" width forgeneral purpose applications.

– Wide Decking – 105.4" widthwith bolt-on cutting edges –for improved coverage of tiresand high decking blade usage.

– Extended Decking – 123.5" widthwith bolt-on cutting edges –for the fullest coverage of tiresand high decking blade usage.

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Work ToolsMove more wood with powerful, flexible Cat grapples and winches.

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Quick-Access Engine Doors. Large,hinged engine enclosure doors makeregular maintenance as easy and fast aspossible. Easy access to daily servicepoints increases the likelihood thatmaintenance will be done, and increasesmachine service life. In addition, lessmaintenance time means more workingtime and greater productivity.

Ground Level Access. Most filters andlube points are accessible from theground without special tools. Remotelubrication points make daily attentionto hard-to-reach joints easy.

Rear Frame Access. Steps and grabirons are located on the rear frame andcab for easier access to the rear frame,arch and boom.

Bolt-on Guards. Bolt-on guards offerprotection to critical components,and are easily removable for servicing.Removable floor plates and side platesallow access to components underthe cab.

Radial Seal Air Filters. Hand accessmakes them easy to change, reducingair filter maintenance times.

Extended Oil Service Intervals. A 500-hour oil change interval reducesdowntime for service and lowersmaintenance costs.

S•O•SSM Fluid Sampling Valves.Provides a fast, convenient way togather uncontaminated fluid samples,which improves analysis reliability.

Pressure Taps. Conveniently locatedfor easy access to hydraulic systempressure measurements.

Spin-on Oil Filters. Simplify maintenanceprocesses and shorten downtime.

Electronic Transfer Pump. Delivers theproper fuel flow to the fuel system andeliminates manual priming.

Ecology Drains. All major fluidcompartments (hydraulic tank, engineoil pan, radiator, axles and transmission)incorporate ecology drains to makeregular maintenance easier, and protectthe environment from accidentaloil spills.

Hitch Hoses. The grapple pilot lines,pressure line and load-sense lines arerouted above the hitch and are bulkheadedfor easy hose replacement and fastestservice. The hitch hoses use the CatToughGuard™ technology and haveexcellent wear characteristics.

Electrical System. The 24V electricalsystem delivers dependable electricalpower for engine cranking, additionallighting, and engine diagnostics. Wiringcircuits are color coded, numbered andprotected by circuit breakers.

On-Board Diagnostic Systems.The Caterpillar Monitoring Systemcontinuously checks all critical machinefunctions and components, and helpslocate faults quickly for faster repair.Extremes are recorded, including fluidtemperatures, engine speed andelectrical system events.

Radiator. Cleanout access doors locatedon both sides of the radiator help makeradiator cleanout faster. The radiatorfeatures an all aluminum constructionwith 8 fins per inch for easy cleanout.

Matched Set Hitch Bearings. Matchedset bearings come pre-assembled withthe correct pre-load from the supplierto streamline the assembly process andensure a quality hitch joint every time.No rolling torque measurement isrequired, so the assembly process issimplified. Matched set bearings alsoreduce service time in the field.

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ServiceabilityEase of service increases productivity.

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Product Support. You will find nearlyall parts at our dealer parts counter.Cat dealers use a worldwide computernetwork to find in-stock parts to minimizemachine down time. Save money withgenuine Cat Reman parts. You receivethe same warranty and reliability as newproducts at substantial cost savings.

Product Link. Product Link enablesconvenient monitoring of importantequipment information remotely tohelp increase productivity and reduceowning and operating costs.

This state-of-the-art satellite technology-based Product Link system enablesCaterpillar dealers and customers to keepin touch with their machines. The systemprovides a two-way information flowbetween machine on-board systemsand Caterpillar dealers/customersvia the Cat Dealer Website andEquipmentManager. Through thesubscriptions to Asset Watch(hours, location, time and geo-fence),Maintenance Watch (preventativemaintenance, repair scheduling, parts

ordering), and Health Watch (event anddiagnostic codes, fuel consumption) thecustomer can manage their entire fleet.

Machine Selection. Make detailedcomparisons of the machines underconsideration before purchase. Cat dealerscan estimate component life, preventivemaintenance cost, and the true costof lost production.

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

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

Operation. Improving operatingtechniques can boost your profits.Your Cat dealer has videotapes,literature and other ideas to help youincrease productivity, and Caterpillaroffers certified operator training classesto help maximize the return on yourmachine investment.

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

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

SAFETY.CAT.COM™.

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

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13525C Wheel Skidder specifications

Power Train

Travel Speed – Fwd. 1st 6.4 km/h 4 mphTravel Speed – Fwd. 2nd 9 km/h 5.6 mphTravel Speed – Fwd. 3rd 10.9 km/h 6.8 mphTravel Speed – Fwd. 4th 15.3 km/h 9.5 mphTravel Speed – Fwd. 5th 27.5 km/h 17.1 mphTravel Speed – Rev. 1st 6.2 km/h 3.9 mphTravel Speed – Rev. 2nd 10.5 km/h 6.5 mphTravel Speed – Rev. 3rd 18.6 km/h 11.6 mphTorque Converter – Type Lock-up clutchTransmission 5 fwd/3 rev countershaft,

powershiftTransmission Cooler Type PlateSteering, frame articulation ± 45°Brakes – Service Type Single disc WET enclosedBrakes – Parking Type Drum brake on rear output

of transmission drop box

Hydraulic System

Circuit Type Closed center,variable flow

Pump Type Axial pistonPump Output 174 L/min 46 gal/minRelief Valve Setting 21 000 kPa 3,045 psiSteering Valve Direct link, non-followSteering Cylinder – Bore 88.9 mm 3.5 inSteering Cylinder – Stroke 437.5 mm 17.22 inSteering Cylinder – Rod Diameter 50.8 mm 2 inDozer Valve Electro-hydraulicDozer Cylinder – Bore 101.6 mm 4 inDozer Cylinder – Stroke 470 mm 18.5 inDozer Cylinder – Rod Diameter 57.15 mm 2.25 inGrapple Valve 4 or 5 stack, pilot

• Measured at 2,200 rpm.

Grapple

Bunching Capacity 1.16 m2 12.5 ft2

Thinning Capacity 1.34 m2 14.4 ft2

Sorting Capacity .83 m2 9 ft2

Engine

Engine Model Cat C7 ACERT™Net Flywheel Power 136 kW 182 hpNet Power – ISO 9249 136 kW 182 hpNet Power – SAE J1349 136 kW 182 hpGross Power – SAE J1995 146 kW 196 hpDisplacement 7.2 L 439 in3

Bore 110 mm 4.33 inStroke 127 mm 5 inNumber of Cylinders 6Max Torque @ Rated Speed 896 N·m at 1,400 rpmDerating Altitude 2285 m 7,500 ftAir Cleaner Dry precleanerAlternator 80 ampFan Speed 1,620 rpmFan Type BlowerElectrical System 24VBattery – Quantity 2Battery – Volts 12VBattery – Capacity 950 CCAStarting System Direct electric

• These ratings apply at 1,800 rpm when tested under thespecified standard conditions.

• Net power advertised is the power available at the flywheelwhen the engine is equipped with fan, air cleaner, mufflerand alternator. No derating required up to 2285 m (7,500 ft)altitude.

• Based on standard air conditions of 25° C (77° F) and 99 kPa(29.32 in Hg) dry barometer. Used 35° API gravity fuel havingan LHV of 42 780 kJ/kg (18,390 BTU/lb) when used at 30° C(86° F) [ref. A fuel density of 838.9 g/L (7.001 lb/gal)].

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14 525C Wheel Skidder specifications

Service Refill

Fuel Tank 315 L 83.2 galCooling System 56.7 L 15 galDifferential, Final Drive – Front 52 L 13.7 galDifferential, Final Drive – Rear 52 L 13.7 galEngine Oil 27 L 7.1 galTransmission, Torque Converter 54 L 14.2 galMechanical Winch 24.5 L 6.5 galHydraulic System – Tank 54 L 14.3 galHydraulic System – Total 112 L 29.6 gal

Weights

Est Operating Weight 17 711 kg 39,045 lb

• Operating weight includes enclosed cab, 30.5 tires, deckingblade, single arch, bunching grapple, winch.

Winch – Grapple Skidder

Max Line Pull – Bare Drum 175 kN 39,342 lbMax Line Speed 40.2 m/min 132 ft/minDrum Capacity 19.0 mm (3/4 in) 47 m 154 ftDrum Capacity 22.2 mm (7/8 in) 30 m 97 ftDrum capacity 25.4 mm (1 in) 28 m 91 ftDrum Diameter 229 mm 9 inDrum Width 279 mm 11 in

Winch – Cable Skidder

Max Line Pull – Bare Drum 183.5 kN 41,270 lbMax Line Speed 110 m/min 360 ft/minDrum Capacity 19.0 mm (3/4 in) 45 m 148 ftDrum Capacity 22.2 mm (7/8 in) 32 m 105 ftDrum capacity 25.4 mm (1 in) 25 m 82 ftDrum Diameter 254 mm 10 inDrum Width 279 mm 11 in

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1A

2

9

7

5A

34

8

6

10

12

11

9

7

5

34

8

1

2

Dimensions

Dimension

dual function 4103 mm (161.5 in) single function 3760 mm (148 in)

2794 mm (110 in) 843 mm (33.2 in)

1798 mm (70.8 in) 3534 mm (139.2 in)

dual function 7626 mm (300.2 in) single function 8369 mm (329.4 in)

6945 mm (273.4 in) 581 mm (22.9 in)

1381 mm (54.4 in) 456 mm (17.9 in)

3184 mm (125.4 in) 3138 mm (123.5 in)

2622 mm (103.2 in) 3398 mm (133.8 in)

6000 mm (236.2 in)

Cable

*With 30.5 x 32 tires†Add 188 mm (7.4 in) if equipped with optional lights or water tank

All dimensions are approximate

GrappleGrapple

†

Ground level to top boom (grapple)

Ground level to top roller (cable)Ground level to axle center line*Rear axle center line to pinWheel baseOverall length (grapple)

Overall length (cable)Ground clearanceDecking blade lift heightDecking blade dig depthHeight to top of cabDecking blade widthTread widthOverall width

1

1A2345

5A6789

101112

Turning radius over tires*

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525C Arch

Single Function Dual Function 1 Lift highest, retracted 2212 mm (87.1 in) 2623 mm (103.3 in) 2 Lift highest, farthest x 1944 mm (76.5 in)3 Lift maximum reach x 1336 mm (52.6 in)4 Lift lowest, retracted x 752 mm (29.6 in)5 Lift lowest, farthest 600 mm (23.6 in) 259 mm (10.2 in)6 Loaded tire radius* 843 mm (33.2 in) 843 mm (33.2 in)7 Reach highest, retracted 1630 mm (64.2 in) 1513 mm (59.6 in)8 Reach lowest, retracted x 1469 mm (57.8 in)9 Reach lowest, farthest 2521 mm (99.3 in) 2488 mm (98 in)

10 Reach highest, farthest x 2765 mm (108.9 in)11 Reach maximum x 2880 mm (113.4 in)

*With 30.5 x 32 tires

Single Function Dual Function

6

5

79

1

78

910

11

6

1

4

32

5

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1

24

3

65

4

3

21

*Thinning grapple is intended only for use in thinning applications

525C Grapple — Continuous Rotation

Sorting Bunching Thinning*1 Grapple capacity 0.83 m2 (9 ft2) 1.16 m2 (12.5 ft2) 1.34 m2 (14.4 ft2)2 Tip to tip height 2045 mm (80.5 in) 1920 mm (75.6 in) 1981 mm (78 in)3 Tong opening 2540 mm (100 in) 3050 mm (120 in) 3124 mm (123 in)4 Full open height 1590 mm (62.6 in) 1677 mm (66 in) 1832 mm (72.1 in)5 Minimum stem diameter 76 mm (3 in) 155 mm (6 in) 190 mm (7.5 in)6 Fully closed height 1829 mm (72 in) 1285 mm (50.6 in) 1371 mm (54 in)

Sorting Grapple

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

Power TrainAir cleaner, 2-stage with precleanerBrakes

ParkingService, four-wheel enclosed disc

Differential locks (front, rear)Driveline slipjoint, lubed for lifeEngine, Cat C7, ACERT Technology, ATAACFan, blowerFilters, fuel/engine air, primary/secondaryFinal drives, inboard planetaryFuel transfer pump (electric)Fuel tank, high capacityLock-up torque converterMufflerRadiator with clean-out doorsSteering, variable flow-modulated 1/4 turnTransmission, countershaft powershift (5F/3R)Universal joints, lubed for life

HydraulicsClosed center-load sensing systemHitch hoses, Caterpillar ToughGuard™Line filter, full flow returnHydraulic oil cooler, Spin-on filtersVariable displacement piston pump, 46 gal/min (174.1 L/min)

Other standard equipmentArticulation lock linkBrush sweeps, frontEcology drains (engine, hyd tank, axles, transmission)Engine enclosures, hingedGuards, hinged – bottom and radiatorSOSSM sampling portsVandalism protection, lockable doors and cap locks

Electrical24V electrical systemAlarm, back-upAlternator, 80 ampBatteries, maintenance free (2-1000CCA)Lighting system, exterior lights (4 total)Main disconnect switchStarter, electric, heavy dutyStarting and charging systemDiagnostic connectorHorn, warning

Operator Environment12V accessory power portSeat, air suspension

30° swivel, 3 position lockingSeat belt

Beverage holderCab, ROPS/FOPS certifiedComputerized Monitoring System

Instrumentation, Gauges:Engine coolant temperatureFuel levelHydraulic oil temperatureTachometerTorque converter oil temperature

Instrumentation, Warning Indicators:AutograbBrake oil pressureDifferential locksEngineEngine oil pressureLockup clutchParking brakePrimary steer pressureSecondary steer pressure (if equipped)Starting aidSystem voltageTransmission filter bypassWinch freespool (if equipped)Work lights

Instrumentation, Digital DataComputerized diagnostics and monitoringEngine rpmGear and directionOdometerService hour meter

Headliner, Floormat, and DomelightMirror, rear viewSteering wheel, tilt and telescopingElectronic transmission mounted controls

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

ElectricalConverter, high capacity 12V, 10A continuous, 15A peakJump start receptacle

Fenders, heavy dutyGrapples – Cat Continuous Rotation

BunchingSortingThinning

LightsAdditional 8 (2 front, 2 rear, 2 per side)

Pre-cleaner, turbineStarting aid package, cold weatherSteering, secondaryTires and Tubes, set of four, logger (LS-2)

30.5L-32, 20PR30.5L-32, 26PR35.5L-32, 20PR35.5L-32, 26PRDual ring capableNarrow overall width options

Water tankWinch

GrappleCable skidding

Power TrainStandard Gross Power – 146 kW (196 hp)Dual Gross Power

1st gear – 146 kW (196 hp)2nd-5th gears – 163 kW (218 hp)

ArchDual functionSingle functionCable skiddingIndustrial arrangement

AxlesHeavy duty (wide tire/chains)Standard duty

BladeNarrow deckingWide deckingExtended decking

Cab, enclosed, with window screensROPS, openROPS, enclosed with heat/ACWindow screensWipers, front and rear

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

© 2010 CaterpillarAll Rights Reserved

Printed in U.S.A.

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

See your Caterpillar dealer for available options.

CAT, CATERPILLAR, SAFETY.CAT.COM, their respective logos, ACERT, ToughGuard,“Caterpillar Yellow” and the “Power Edge” trade dress, as well as corporate and product

identity used herein, are trademarks of Caterpillar and may not be used without permission.

AEHQ5670-01 (02-10)

Replaces AEHQ5670

525C Wheel Skidder

AEHQ5670-01.qxd 2/18/10 1:29 PM

Specalog for 525C Wheel Skidder, AEHQ5670-01

Documents

Transcript of Specalog for 525C Wheel Skidder, AEHQ5670-01