Specalog for 785C Mining Truck, AEHQ5320-03

1 EngineEngine ModelCat 3512B-EUIG ross power SAE J1995 1082 kW1,450 hpNet Power1005 kW1,348 hpWeights ApproximateGross Machine249 480 kg550,000 lbOperating WeightOperating SpecificationsNominal Payload Capacity136 tonnes150 tons785 CMining Truck2785C Mining TruckEngineered for performance, designed for comfort, built to specifically for high productionmining and construction applications, the785C Mining Truck keeps material movingat high volume to lower your , Durable construction and easy maintenanceprocedures ensure long life with lowoperating Body SystemsA variety of Caterpillar designedand built truck bodies ensure optimalperformance and reliability in toughmining applications.

2 Cat dealers canhelp build an optimum hauling systemto maximize truck payloads andextend body and truck wear 14 Monitoring SystemVIMS monitoring system providesoperators, service technicians andmanagers with vital machine healthand payload data to keep the 785 Cperforming at peak efficiency andtop production levels while 12 Engine/ power Train IntegrationThe Cat Data Link electronicallycombines engine, transmission,brake and operational informationto optimize overall truck diagnostic data can be accessedvia the Cat Electronic Technician(Cat ET) to improve troubleshootingand reduce 6 power Train TransmissionThe Cat six-speed power shifttransmission and mechanical powertrain, matched with the electronic unitinjection 3512B engine, providesconsistent power and efficiency forpeak power train performance.

3 Pg. 5 power Train EngineThe Cat 3512B engine deliversthe power and reliability necessaryto perform in the most demandingapplications. Designed for efficientoperation, the 3512B offers excellentfuel efficiency, lower emissions,reduced engine noise and loweroperating 43 Customer SupportCaterpillar dealers provide unmatchedproduct support, anywhere in the industry-best parts availabilityand a wide range of maintenance andservice options, Cat dealers have whatit takes to keep your Mining machinesproductive. pg. 17 SafetyCaterpillar sets the standard whenit comes to safety in the design andmanufacturing of heavy equipmentfor the Mining industry.

4 Safety is notan afterthought at Caterpillar, but anintegral part of all machine andsystems designs. pg. 18 ServiceabilityThe 785C is designed for quick andeasy servicing. Simplified service andmaintenance features reduce downtime,allowing the machine to spend less timebeing serviced and more time on thehaul 16 Caterpillar Brake SystemCat oil-cooled, multiple disc brakesoffer exceptional, fade-resistant brakingand retarding for maximum performanceand productivity in all haul roadconditions. Integrated Braking Controlcombines retarding and traction controlinto one system for optimum 10 Operator s StationThe ergonomic cab is designed foroperator comfort and ease of operation toallow the operator to focus on and gauges are positionedwithin easy reach for optimum efficiencyand superior 9 StructuresCaterpillar truck frames are built tooptimize torsional load steel provides flexibility, durabilityand resistance to impact loads.

5 Castingsand forgings in high stress areas provideexceptional strength and durabilityfor long Cat 3512B EUI twinturbocharged and aftercooled dieselengine delivers high power and reliabilityin the world s most demanding miningapplications. 3512B is a 12-cylinder,four-stroke design that uses long, effectivepower strokes for more complete fuelcombustion and optimum fuel 3512B engineis compliant with EnvironmentalProtection Agency Tier 1 formaximum operating efficiencies ataltitudes under 3048 m (10,000 ft).High Torque 23 percent nettorque rise provides unequalled luggingforce during acceleration, on steepgrades and in rough underfoot rise effectively matchestransmission shift points for maximumefficiency and fast cycle displacement, lowrpm rating and conservative horsepowerratings mean more time on the haulroads and less time in the Piston single-piece forged steel pistons with integratedforged steel skirt are more robust towithstand high engine heat and pressureand enable enhanced combustionefficiency, improved fuel efficiencyand lower emissions.

6 Corrosion resistant,stainless steel top ring reduces ring,groove and liner wear for greaterreliability and longer life. Electronic Unit Injection (EUI).The electronically controlled unitinjection fuel system senses operatingconditions and regulates fuel deliveryfor optimum fuel efficiency. The provenhigh-pressure fuel system providesimproved response times and moreefficient fuel burn with lower emissionsand less Control Module (ECM).Utilizes advanced engine managementsoftware to monitor, control and protectthe engine utilizing self-diagnosingelectronic sensors. The computerizedsystem senses operating conditions andpower requirements and adjusts enginefor peak performance and most efficientoperation and at all Circuit theaftercooler circuit to operate cooler thanjacket water temperature for a denser aircharge and greater Renewal oilrenewal system extends engine oil changeintervals from 500 hours to 4,000 hoursor more to increase machine availabilityand reduce systemelectronically protects the engine duringcold starts, high altitude operation,air filter plugging.

7 And high Train EngineThe Cat 3512B EUI twin turbocharged and aftercooled diesel engine delivers high powerand reliability in the world s most demanding Mining power Catmechanical drive power train and powershift transmission provides unmatchedoperating efficiency and control on steepgrades, in poor underfoot conditions, andon haul roads with high rolling ) Cat six-speedplanetary power shift transmission ismatched with the direct-injection 3512 Bdiesel engine to deliver constant powerover a wide range of operating speeds. Robust for the higherhorsepower of the 3512B engine, theproven planetary power shift transmissionis built tough for long life betweenoverhauls.

8 Long dedicated oil tank andcircuit provides cooler, cleaner oil formaximum performance and longercomponent Chassis Control (TCC).TCC uses electronically transferredengine rpm data to execute shifts atpreset points for optimum performance,efficiency and clutch life. 2) Lock-Up Torque maximum rimpull andcushioned shifting of torque converterdrive with the efficiency and performanceof direct drive. Engages at approximately8 km/h (5 mph), delivering more powerto the wheels. Lock-Up releases andre-engages to reduce power train torqueloads for smoother shifting, long lifeand a more comfortable ride.

9 Smooth clutchmodulation provides smooth clutchengagements to optimize performanceand extend clutch ) Final final drives work asa system with the planetary power shifttransmission to deliver maximum powerto the ground. Built to withstand theforces of high torque and impact loads,double reduction final drives providehigh torque multiplication to furtherreduce drive train steeringcontrol system is designed forexceptional smoothness and precisecontrol. A separate circuit preventscross contamination for long system uses pressure accumulatorsand allows up to three 90-degree turnsin case of engine and rear wheelsand Cat center-mount rims are mountedusing studs and nuts to minimizemaintenance and maximize Train TransmissionCat mechanical power train delivers more power to the ground for greater productivityand lower operating combines critical power train components to work more intelligentlyand to optimize overall truck Train IntegrationVIMS MainModuleETVIMS5674832110911 1 Gauge Cluster Module

10 2 Message Center Module 3 Integrated Braking Control (IBC) 4 Transmission/Chassis Control (TCC) 5 Brakes 6 Wheel Sensor 7 Transmission 8 CAT Data Link 9 Engine Control Module (ECM) 10 Sensors 11 Electronic Unit Injector (EUI)7 Cat Data integratesmachine computer systems to optimizeoverall power train performance, increasereliability and component life, andreduce operating Throttle rpm during shifting to reducepower train stress and clutch wearby controlling engine speed, torqueconverter lock-up and transmissionclutch engagement for smoother shiftsand longer component Shift engine speed during directionalshifts to prevent damage caused byhigh-speed directional Coast from shifting to neutralat speeds above km/h (4 mph)