Time proven iron and modern technology combine to provide a highly productive, durable and reliable off-highway truck focused on our customers greatest need...lowest cost-per-ton.
The four-stroke design uses long power strokes for more complete fuel combustion and optimum efficiency. High displacement and a low speed rating can help extend engine life. This engine meets U.S. Environmental Protection Agency Tier 2 emissions regulations and Stage II EU Emissions Directive 97/68/EC.
The 40 percent torque rise provides high lugging force during acceleration and less down-shifting on grade or in rough underfoot conditions. The torque rise effectively matches the transmission shift points to provide maximum efficiency and faster cycle times.
1) Valve Rotators2) Turbocharger3) Stellite-Faced Valves4) Steel-Backed, Copper-Bonded Bearings5) Oil Cooler6) Forged Crankshaft7) Adjustment-Free, Fuel Injection Pumps8) Hydraulic Injectors9) Forged Steel Pistons10) Full-length, Water-Cooled Cylinder Liners
The HEUI is a proven high-pressure, direct injection fuel system. This system electronically monitors operator and machine inputs to optimize engine performance. HEUI is unique in its ability to independently control injection pressure over the entire engine operating range. This allows complete control over injection timing, duration, performance and efficiency. Rate shaping technology modifies the heat release characteristics of the combustion process for significant decreases in sound and emission levels. Exhaust smoke is significantly reduced through precise, electronic control of fueling limits and injection timing.
The ECM monitors key functions and logs critical indicators. The Electronic Technician can access this diagnostic information for easier maintenance and repair.
The Cat seven-speed, power shift transmission, matched with the direct-injection 3412E diesel engine provides constant power over a wide range of operating speeds.
Final drive and differential torque multiplication of 17.48:1 further reduces stress on the drive train.
Full floating axles are shot-peened to relieve internal stresses and increase durability. Rolled splines also provide increased service life.
Cast rear wheels and Cat center-mount rims are mounted using studs and nuts to minimize maintenance and maximize durability.
The Caterpillar power train integration provides increased component life and operator comfort.
1) Electronic Technician2) Cat Data Link System3) Engine Control Module4) Engine5) Transmission Chassis Controller6) Automatic Retarder Control, Traction Control System and Integrated Brake Controller7) Caterpillar Electronic Monitoring System8) Transmission9) Oil-Cooled Brakes
The Cat Data Link electronically integrates the machine's computer systems, which allows communications and provides the following benefits:
Helps prevent the transmission from shifting to neutral at speeds above 6.5 km/h (4 mph).
Helps prevent the transmission from shifting above a pre-programmed gear without the body fully lowered.
CEMS allows the operator to view requested information and utilizes a three-category warning system to alert the operator to abnormal machine conditions.
Caterpillar offers optional attachments that integrate with the Cat Data Link System.
1) Parking/Secondary Piston2) Service/Retarding Piston3) Friction Discs4) Steel Plates5) Actuating Springs6) Cooling Oil In7) Cooling Oil Out
Caterpillar forced oil-cooled, multiple disc brakes are continuously cooled for exceptional, fade-resistant braking and retarding. The optional ARC and TCS utilize the oil-cooled rear brakes to enhance truck performance and increase productivity.
Are designed and built for reliable, adjustment-free operation providing superior performance and service life in comparison to shoe-type and dry-disc systems.
An oil film prevents direct contact between the discs. Absorbing the braking forces by shearing oil and carrying heat away, this design extends brake life.
Spring-applied, hydraulically released, oil-cooled disc brakes are located on the rear axle. The front brakes will activate as part of the secondary system, even if switched out of service.
Spring-applied, hydraulically released parking brakes use wet disc brakes in the service system. A toggle switch activates the parking brake.
A Caterpillar patented, two-piston design combines the service, secondary and parking brakes, along with retarding functions.The primary piston hydraulically actuates both service and retarding functions. The secondary piston is spring-applied and held in the disengaged position by hydraulic pressure. If hydraulic system pressure drops below a certain level, the spring-applied secondary piston automatically applies the brakes.
The ARC electronically controls braking on grade to maintain approximately 2,230 rpm (engine rpm is adjustable from 2,150-2,300 rpm in increments of 10 rpm). ARC is deactivated when the operator applies the brakes or throttle.
With the accelerator depressed and/or ARC turned off, ARC will automatically activate at 2,475 rpm to help avoid potentially destructive and often costly engine overspeeds.
Monitors wheel slip so if it exceeds the set limit, the oil-cooled disc brakes are automatically applied to slow the spinning wheel.
An on-dash indicator shows the operator that TCS is engaged.
Utilizes normal differential action to provide superior maneuvering in poor underfoot conditions. Also reduces tire scuffing as compared to positive lock differentials used on other systems.
TCS divides torque equally to reduce stress created on final drives and axles when torque is transferred to one side.
Should sensors fail, the normal differential action is still available to maintain control and steering.
The 773E frame uses a box-section design, incorporating 20 castings in high stress areas with deep penetrating and continuous wrap-around welding. Mild steel, which provides flexibility, durability and resistance to impact loads even in cold climates is used throughout.
Castings have large radii with internal reinforcing ribs to dissipate stress. Castings move welds to lower stress areas and provide two to three times the strength of equivalent sized fabricated structures.
The box-section frame allows simple access to power train components. This open design reduces overall removal and installation time, lowering repair costs. Transmission access is excellent under the raised and pinned body. Repairs can be made without preheating in ambient temperatures above 16° C (60° F) using readily available welding supplies.
The ROPS attaches securely to four castings welded into the frame.
Designed to dissipate haul road and loading impacts for extended frame life. Four independent, self-contained, oil pneumatic, variable-rebound, suspension cylinders absorb shocks. Rear cylinders allow axle oscillation and absorb bending and twisting stresses. Front cylinders, mounted to the frame, serve as steering kingpins, providing excellent maneuverability and reduced maintenance. Caster and camber are preset.
773E bodies are designed to handle a variety of material densities. Maximum payload is reached in three to five passes from a matched Cat loader in 1700 kg/m3 (2,900 lb/yd3) material and higher.
Are joined by five-sided beams to resist impact loading and sustained hauling stresses.
Offer increased durability in the floor, sidewalls, top rail, corner and cab canopy areas.
Wear surfaces provide excellent wear resistance and are easily welded without preheating procedures.
Provide fast dump cycle times of 9.5 seconds for raise and 12.5 seconds for lower.
Comes exhaust heated with options including a full-time muffler or exhaust diverter.
Including tail extensions, liner packages, sideboards and other custom designs are offered to help ensure rated payload.
Offers the lowest cost-per-ton option in most construction and mining applications.
Efficient under most haul road conditions, but its strength comes from higher levels of production in sites with rough haul roads and steeper grades.
Uses an eight degree "V" bottom for increased load retention, a low center of gravity and reduced shock loading. It also aids in centering the load.
Retains the load on grades up to 15 percent and higher. This design also helps maintain proper load distribution.
Offers excellent load retention on grades up to 12 percent and on smoother haul road conditions.
Uses a 12 degree single slope, offering excellent wear characteristics and uniform dumping into hoppers, crushers and feeders.
Rated highly by operators with everything needed for top performance located at the operator's fingertips.
Offers an easy line-of-sight arrangement, using LED backlit rocker switches.
Standard and fully adjustable, including an adjustable right-hand armrest.
With ergonomic grip improves comfort and control. Low effort steering system and ergonomically designed retarder lever reduce operator fatigue. Also includes an enhanced turn signal lever with high beam actuator and electric windshield wiper controls.
Has LED backlit gear numbers and ergonomic shift knob.
Exceptional all-around viewing area reduces fatigue and improves productivity.
Is resiliently mounted providing a quiet, protected work environment. The cab is radio-ready with speakers, wiring harness, antenna and mounting bracket.
Increases front brake component life.
0.10 m3 (3.5 ft3) of storage space is located under the trainer's seat.
Includes back rest and retractable seat belt.
Includes four-speed fan and nine vents.
Ergonomically designed for increased operator comfort.
For simplified operation.
Is fingertip actuated and provides low impact body-down snubbing.
Is an exclusive Caterpillar on-board engine oil evacuation and prelubrication system.
A new, state-of-the-art, on-board system evacuates engine sump in less than two minutes and allows for purge of oil filters prior to removal, minimizing oil spills. It delivers new oil through primary filters for filtered protection and ensures new filters are correctly filled following routine oil change.
Environmentally efficient, clean oil changes are ensured since engine sump is evacuated directly into PM trucks or waste containers with flush faced, quick disconnects for fast evacuation and fill. This eliminates handling of waste oil, minimizes chances of oil spillage and enhances Contamination Control efforts by ensuring complete filtration of new oil on engine refill.
Provides engine oil pressure prior to engine cranking. Reduces engine dry start wear and risk of cold starts for increased protection of key components. Also provides expanded low temperature range for 15W40 motor oils.
Reduces time to complete engine service (changing engine oil, oil filters, fuel filter, air cleaner) by as much as 30 to 50 percent. Improves the ability to schedule engine services at prescribed hours, allows for servicing during normal working hours and integrates easily with PM trucks to further reduce total cycle time of engine service.
Provides access to air tanks, brake master cylinder and make-up tank; engine oil level; air filters; steering hydraulic tanks; and battery compartment.
Facilitates safe, convenient servicing and maintenance.
With CEMS, provides the machine operator with a three-category warning system and quick access to stored diagnostic data.
With ET, allows service technicians access to stored diagnostics data reducing downtime and lowering operating costs. ET stores engine parameter information such as timing, throttle position and fuel flow. Transmission data is available through ET via access to the Cat Data Link System.
Are easy to change, reducing air filter maintenance times.
Provide for simplified servicing.
Located in all hydraulic systems provide clear, quick pressure checks. S·O·SSM oil analysis points make oil sampling quick, clean and easy.
Lock out dust and moisture. Color-coded wiring is standard for the entire Cat product line.
The Caterpillar worldwide computer network locates parts instantly to minimize machine downtime.
Caterpillar manuals are easy to use and help provide the full value of an equipment investment.
Caterpillar offers a variety of machine configuration options to help meet customer needs.
Include a full line of standard and custom designs based on specific customer preference, material density, loading tool and site conditions.
A full line of tire options, representing various manufacturers, is offered by Caterpillar. To maximize performance and life for specific applications.
The Caterpillar system approach means increased efficiencies through common design. Haul trucks, loaders, excavators, tractors, engines for generator sets and pumps - all designed by Caterpillar - use common components, parts and design. Commonality reduces customer parts stock, improves parts availability, reduces training/maintenance and improves diagnostics. This system approach adds up to lower costs-per-ton. Dealer support is available to address customer needs regardless of the component.
Combined with Caterpillar software programs can assist customers with detailed, application evaluation.
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