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EngineThe six cylinder, four-stroke, turbocharged Cat 3406E EUI ATAAC diesel engine is precisely engineered and stringently tested to maintain a tradition of quality. It does it all with profit-boosting performance, heavy duty durability and reliability, built-in serviceability, excellent fuel economy and low emission levels.
High Torque RiseProvides unequalled lugging force while digging, tramming and traversing steep grades. Torque rise effectively matches transmission shift points for maximum efficiency and fast cycle times.
Electronic Control Module (ECM)ECM utilizes advanced engine management software to monitor, control and protect the engine utilizing self-diagnosing electronic sensors. The computerized system senses operating conditions and power requirements and adjusts engine for peak performance and most efficient operation at all times.
Turbocharged and AftercooledAir-to-air aftercooling provides improved fuel economy by packing cooler, denser air into cylinders for more complete combustion of fuel and lower emissions. The turbocharger enhances performance and efficiency.
Electronic Unit InjectionThe electronically controlled unit injection fuel system senses operating conditions and regulates fuel delivery for optimum fuel efficiency. The proven high-pressure fuel system provides improved response times and more efficient fuel burn with lower emissions and less smoke.
PistonsOil cooled pistons increase heat dissipation and promote longer piston life.
Cylinder LinersFull-length water-cooled cylinder liners provide maximum heat transfer.
CrankshaftThe crankshaft is forged and induction hardened for long-term durability.
RadiatorModular radiator with swing-out grill provides easy access for cleaning or repair. Built in sight gauge allows for quick, safe coolant level checks.
Power Train - Engine The Cat 3406E diesel engine delivers the power and reliability necessary to perform in the most demanding underground mining applications. » Learn More
Power Shift TransmissionThe Cat four-speed planetary power shift transmission is matched with the 3406E diesel engine to deliver constant power over a wide range of operating speeds.
Final DrivesCat final drives work as a system with the planetary power shift transmission to deliver maximum power to the ground. Built to withstand the forces of high torque and impact loads, double reduction final drives provide high torque multiplication to further reduce drive train stress.
AxlesHeavy duty axles are built rugged for long-life in the most demanding environments.
BrakesFully enclosed oil immersed disc brakes incorporate independent service and parking brake pistons. Hydraulic actuated independent circuits provide improved performance and reliability.
Electronic TechnicianET service tool provides service technicians with easy access to stored diagnostic data through Cat Data Link to simplify problem diagnosis and increase availability.
Power Train - Transmission Designed for durability, the Cat power shift transmission delivers smooth, responsive performance and reliability in tough conditions. » Learn More
Hydraulic SystemPowerful Cat hydraulics deliver exceptional digging and lifting forces and fast cycle times.
Lift and Tilt SystemHigh hydraulic flow rates provide fast hydraulic cylinder response and powerful lift forces. Large-bore lift and tilt cylinder delivers exceptional strength, performance and durability.
Pilot ControlsLow effort, pilot operated joystick implement control with simultaneous lift and tilt functions optimizes operating efficiency. Optional circuit controls enable ejector bucket to be controlled from switch on joystick.
Steering SystemSTIC™ control system integrates steering and transmission into a single controller for maximum responsiveness and smooth control.
Optional Ride ControlAutomatic Ride Control enhances machine ride and performance at speeds above 5 km/h (3 mph).
Cat Hydraulic HoseField proven Cat high pressure XT hydraulic hoses is exceptionally strong and flexible for maximum system reliability and long life in the most demanding conditions. Reusable couplings with O-ring face seals provide superior, leak free performance and prolong hose assembly life.
Hydraulics Cat hydraulics deliver the power and control to keep material moving. » Learn More
Frame DesignThe frame features robust structural components for outstanding durability in the toughest loading conditions. Caterpillar integrates advanced processes in the design and manufacture of Cat frames and structures. Computer modeling and Finite Element Analysis (FEA) are used extensively throughout design.
Z-Bar Loader LinkageProven Z-Bar loader linkage geometry generates powerful breakout force and an increased rack back angle for better bucket loading and material retention.
Sealed PinsSealed colleted pins are fitted to all bucket and lift arm hinge points for longer pin and bushing life. This reduces maintenance costs and extends service intervals. The sealed joints retain lubrication and prevent contaminant entry.
HitchSpread hitch design widens the distance between upper and lower hitch plates to distribute forces and increase bearing life. Thicker hitch plates reduce deflection. The wide opening provides easy service access. Upper and lower hitch pins pivot on roller bearings to distribute horizontal and vertical loads over a greater surface area. Shim adjusted preload reduces maintenance time. An on-board steering frame lock pin is fitted to prevent articulation during maintenance and service.
Structures Designed for maximum strength and durability in the harshest operating environments. » Learn More
Ergonomic LayoutThe R2900G XTRA operator station is ergonomically designed for total machine control in a comfortable, productive and safe environment. All controls, levers switches and gauges are positioned to maximize productivity and minimize operator error.
Pilot ControlsLow-effort pilot operated joystick controls integrate steering, transmission and implement functions for smoother, faster cycles with less operator fatigue.
Dual-Pedal BrakingDual brake pedals function as a brake and a transmission neutralizer so the operator can maintain high engine rpm for full hydraulic flow and fast cycle times.
Protective StructureIntegral to the cab and frame, the Rollover Protective Structure (ROPS) is resiliently mounted to the frame to isolate the operator from vibration for a more comfortable ride.
Optional Enclosed CabOptional sound-suppressed ROPS cab provides a quiet, secure working environment. Large window openings offer excellent visibility in all directions. Enclosed design provides fresh, pressurized, temperature-controlled air circulation with air-conditioned comfort and a more comfortable working environment. The system uses environmentally friendly R134a refrigerant.
Optional Ride ControlThe system uses a nitrogen filled oil accumulator in the hydraulic lift circuit to act as a shock absorber for the bucket and lift arms. The lift arm and bucket response to movement is dampened over rough ground, reducing fore and aft pitch, improving cycle times and load retention. A smoother, more comfortable ride gives operators the confidence to travel at higher speeds during load and carry applications.
Suspension SeatSuspension seat provides optimal driving position and enhances operator comfort, all shift long.
Monitoring SystemCaterpillar Monitoring System (CMS) continuously provides critical machine data to keep the machine performing at top production levels. A warning system alerts the operator of immediate or impending problems with engine oil pressure, parking brake engagement, brake oil pressure, electrical system, low fuel, hydraulic oil temperature, coolant level/temperature, transmission oil temperature and impending brake application (optional). - Gauges - display engine coolant temperature, transmission oil temperature, hydraulic oil temperature, and fuel tank level.
- Tachometer/speedometer - displays engine speed, ground speed, gear indicator, and machine direction.
- Digital Display - "Normal" mode displays choice of hour meter, odometer or digital tachometer. "Service" mode displays operating parameters, diagnostic codes and out-of-range gauge readings.
Operator Station Setting a new industry standard for comfort and efficiency. » Learn More
BucketsAggressive Cat bucket designs deliver unmatched productivity in the most demanding applications. Underground mining buckets are designed for optimal loadability and structural reliability to help lower your cost-per-ton.
Bucket SelectionCat underground loader buckets are available in two styles to meet a range of loading, hauling and dumping conditions. - Dump buckets
- Ejector buckets
Bucket CapacitiesBuckets are available in a range of sizes and capacities to suit most material types and densities.
Wear PackagesWeld-on wear plates in high wear areas are standard. Additional wear packages, including sacrificial wear strips and Cat heal shrouds protect the edges from damage and reduce the need for costly bucket rebuilds.
Cutting EdgesCat half arrow and cast half arrow cutting edges extend bucket life in high wear applications.
Buckets Cat buckets provide the flexibility to match the machine to the material and conditions. » Learn More
Service AccessEasy access to daily service points simplifies servicing and reduces time spent on regular maintenance procedures.
Ground-Level AccessAllows convenient servicing to all tanks, filters, lubrication points and compartment drains.
Air FiltersRadial seal air filters are easy to change, reducing time required for air filter maintenance.
Sight GaugesMakes fluid levels checks quick and easy.
DiagnosticsElectronic Technician (ET) Service Tool enables quick electronic diagnosis of machine performance and key diagnostic data for effective maintenance and repairs.
Sealed Electrical ConnectorsElectrical connectors are sealed to lock out dust and moisture. Harnesses are braided for protection. Wires are color and number coded for easy diagnosis and repair.
Serviceability Less time spent on maintenance means more time being productive. » Learn More
Machine SelectionMake detailed comparisons of the machines under consideration before purchase. Cat dealers can estimate component life, preventive maintenance cost, and the true cost of lost production.
PurchaseLook past initial price. Consider the financing options available, as well as day-to-day operating costs. This is also the time to look at dealer services that can be included in the cost of the machine to lower equipment owning and operating costs over the long run.
FinancingYour dealer is an expert at arranging affordable financing options for all Caterpillar products.
Product SupportYou will find nearly all parts at your dealer parts counter. Cat dealers use a worldwide computer network to locate in-stock parts to minimize machine downtime. Save money with Cat Reman parts. Receive the same warranty and reliability as new products at a savings of 40 to 70 percent.
Litature SupportOperation and maintenance manuals are easy to use, helping you get the full value of your equipment investment.
Customer Service AgreementsCat dealers offer a variety of product support agreements, and work with customers to develop a plan that meets specific needs. Plans can cover the entire machine, including attachments, to help protect your investments.
Customer Service AgreementsCat dealers offer a variety of product support agreements, and work with customers to develop a plan that meets specific needs. Plans can cover the entire machine, including attachments, to help protect your investments.
OperationImproving operating techniques can boost your profits. Your Cat dealer has training videotapes, literature and other ideas to help you increase productivity.
ReplacementRepair, rebuild or replace? Your Cat dealer can help you evaluate the cost involved so you can make the right choice.
Technology ProductsCat dealers offer a range of advanced mining technology products for customers, dealers and operators designed to improve fleet efficiency, increase productivity and lower costs.
www.CAT.comFor more complete information on Cat products, dealer services, and industry solutions, visit us on the web at www.CAT.com.
Customer Support Caterpillar dealers have what it takes to keep your underground mining loader productive. » Learn More
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