CATERPILLAR 785C PDF

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Design The B is a cylinder, four-stroke design that uses long, effective power strokes for more complete fuel combustion and optimum fuel efficiency. Environmental Protection Agency emission requirements. Altitude Compensation Designed for maximum operating efficiencies at altitudes under m 10, ft.

High Torque Rise The 23 percent net torque rise provides unequalled lugging force during acceleration, on steep grades and in rough underfoot conditions. Torque rise effectively matches transmission shift points for maximum efficiency and fast cycle times.

Enhanced Life High displacement, low rpm rating and conservative horsepower ratings mean more time on the haul roads and less time in the shop. Separate Circuit Aftercooler Allows the aftercooler circuit to operate cooler than jacket water temperature for a denser air charge and greater combustion. Engine Protection Computerized system electronically protects the engine during cold starts, air filter plugging, high exhaust temperature and engine overspeed ARC.

Electronic Control Module 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 and at all times. Power Train - Transmission Cat mechanical power train delivers more power to the ground for greater productivity and lower operating costs.

Mechanical Power Train The Cat mechanical drive power train and power shift transmission provides unmatched operating efficiency and control on steep grades, in poor underfoot conditions, and on haul roads with high rolling resistance. Robust Design Designed for the higher horsepower of the B engine, the proven planetary power shift transmission is built tough for long life between overhauls. Transmission Chassis Control TCC TCC uses electronically transferred engine rpm data to execute shifts at preset points for optimum performance, efficiency and clutch life.

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. Wheels and Rims Cast rear wheels and Cat center-mount rims are mounted using studs and nuts to minimize maintenance and maximize durability. Steering System Hydraulic steering control system is designed for exceptional smoothness and precise control.

A separate circuit prevents cross contamination for long life. Cat Data Link Electronically integrates machine computer systems to optimize overall power train performance, increase reliability and component life, and reduce operating costs.

Electronic Technician Cat ET Cat ET service tool provides service technicians with easy access to stored diagnostic data through the Cat Data Link to simplify problem diagnosis and increase machine availability. Body-up Reverse Neutralizer Automatically shifts the transmission to neutral if the hoist lever is activated while transmission is shifted in reverse. Supplemental Steering Supplemental Steering system uses pressure accumulators and allows up to three degree turns in case of engine failure.

Box-Section Design The C frame uses a box-section design, incorporating two forgings and 21 castings in high stress areas with deep penetrating and continuous wrap-around welds to resist damage from twisting loads without adding extra weight.

Serviceability The open box-section frame design allows easy access to power train components, reducing overall removal and installation time, and lowering overall repair costs. The raised and pinned body allows excellent access to the transmission. Steel Structures Mild steel used throughout frame provides flexibility, durability and resistance to impact loads, even in cold climates, and allows for easy field repairs.

Suspension System Designed to dissipate haul road and loading impacts for longer frame life and a more comfortable ride.

Cylinders Four independent self-contained, oil pneumatic, variable-rebound suspension cylinders are designed to absorb shocks in the most severe applications. Ergonomic Layout The C 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 fatigue.

Viewing Area Designed for excellent all-around visibility and clear sight lines to the haul road, the large viewing area enables the operator to maneuver with confidence for high productivity. Consult your dealer for the complete line of available Cat radio options including satellite radio. Integrated Braking System The Cat oil-cooled braking system delivers reliable performance and control in the most extreme haul road conditions. The integrated system combines the service, secondary, parking brake and retarding functions in the same robust system for optimum braking efficiency.

Oil-Cooled Multiple Disc Brakes Cat four-wheel, forced oil-cooled, multiple disc service brakes are continuously cooled by water-to-oil heat exchangers for exceptional, non-fade braking and retarding performance.

Extended Life Disc Brakes Cat oil-cooled disc brakes are designed with large discs and plates for reliable, adjustment-free operation and performance. Brakes are completely enclosed and sealed to prevent contamination and reduce maintenance. Additionally, this machine features optional extended life friction material that has double the wear life of standard brakes and is twice as resistant to glazing resulting in more consistent braking power with less noise.

Pistons The Caterpillar two-piston design combines the service, secondary, parking brake and retarding functions in the same system. 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 specified level, the spring-applied secondary piston automatically applies the brakes. Parking Brake Oil-cooled, spring-applied, hydraulically released parking brake is applied to all four wheels for superior parking capability on all grades up to 15 percent.

Hydraulic Automatic Retarder Control HARC Hydraulically activated automatic retarder control system electronically controls retarding on grade to maintain optimum engine rpm and oil cooling. Additional braking may be applied using the manual retarder or the brake pedal. HARC is deactivated when the operator applies the brakes or accelerator controls. Truck Body Systems Caterpillar designed and built for rugged performance and reliability in the toughest mining applications.

Cat Truck Bodies Matching the truck body to the application is a critical part of achieving the best value from your C.

Caterpillar offers a variety of application specific body options that yield a payload ranging from to metric tons to tons. Like the Dual Slope - the X body is designed for durability across a range of harsh applications. The MSD II is designed to maximize payload, provide good durability and can be configured with a variety of liner options to meet the specific requirements of the mine.

The kicked up floor design eliminates the tailgate and gives the volume required to meet target payload. The Dual Slope body is intended for tough applications including greenfield sites and contracting mines. Custom Body Options A variety of options including tail extensions, sideboards, tumble bars, rock boxes and rock shedders are available to maintain rated payload, reduce spillage and improve hauling efficiencies.

Monitoring System Vital machine health and payload data keeps the C performing at peak production levels. Based on target payload weight and overload settings, the VIMS system logs and warns the operator when the truck reaches overload after second gear reweigh. The truck will be limited to second gear at 1, rpm, and the automatic retarder speed setting is reduced to 1, rpm until the load is dumped.

Road Analysis Control RAC Optional system monitors haul road conditions by measuring frame rack and pitch to improve haul road maintenance, cycle times, tire life and fuel efficiency. VIMS-PC VIMS-PC, the off-board reporting software program, allows service personnel to download a complete record of machine health and productivity data to a laptop computer for diagnosis and analysis. Easy-to-use software enables service technicians and mine management to generate health and payload reports for more effective machine management.

Machine Management Service technicians or mine personnel can download data and generate reports. Data can be used to improve effectiveness of scheduled maintenance programs, maximize component life, improve machine availability, and lower operating costs. Gauge Cluster Conveniently located gauge cluster maintains a constant display of vital machine functions. Safety Cat mining machines and system are designed with safety as their first priority.

Product Safety Caterpillar has been and continues to be proactive in developing mining machines that meet or exceed safety standards. Safety is an integral part of all machine and system designs. This system uses a combination of short and medium range radars which surround the machine, along with cameras on each side to allow the operator to confirm the detected object.

The cameras supplement the radar alerts and are selectable by touch screen menus through an intuitive interface. Machine Safety Features Caterpillar incorporates safety into every aspect of our machines. An engine shutoff switch and an electrical system cutoff are conveniently located at ground level. Sustainability Features The C Mining Truck offers oil renewal systems, extended life filters and extended maintenance intervals which aid in decreasing the amount of waste contributed to our environment.

Oil Renewal System Optional oil renewal system extends engine oil change intervals from hours to 4, hours or more to increase machine availability and reduce costs. Engines with Advanced Technology Engines with advanced technology contribute less emissions to the environment while maintaining fuel efficiency. This technology improves wear resistance and reduces repair time. Chrome has been eliminated to reduce environmental impact.

Fuel Efficiency The engine provides additional retarding by running against compression on downhill hauls. During retarding applications the engine ECM does not inject fuel into the cylinders for exceptional fuel economy.

Serviceability Less time spent on maintenance means more time on the haul roads. Servicing Ease Easy access to daily service points simplifies servicing and reduces time spent on regular maintenance procedures.

Enhanced serviceability and hour service intervals are designed to increase machine availability and productivity. Maintenance Platform Provides access to engine, air filters, steering hydraulic tank and battery compartment. In-Frame Access Permits easy access to major components for easy servicing and removal. Ground-Level Access Allows convenient servicing to tanks, filters, drains, and engine shutdown. Ground-level VIMS data port permits easier downloading of information.

Autolube Automatic lubrication system reduces maintenance time by automatically lubricating necessary components on a regular basis. Fast Fill Service Center Optional fast fill service center features high-speed fuel and oil exchange. Pressure Test Points Disconnect valves are conveniently located throughout the hydraulic systems for easy pressure testing.

Sealed Electrical Connectors Electrical connectors are sealed to lock out dust and moisture. Harnesses are braided for protection. Wires are color coded for easy diagnosis and repair. Cylinder Heads Individual cylinder heads are interchangeable for easy removal and visual inspection of internal parts. On-Board Diagnostic Systems The VIMS monitoring system continuously monitors all critical machine functions and components to help locate faults quickly for faster repair.

Electronic Control Systems provide diagnosis of engine, transmission, brake and chassis systems. Customer Support Cat dealers have what it takes to keep mining trucks productive. Commitment Makes the Difference Cat dealers offer a wide range of solutions, services and products that help you lower costs, enhance productivity and manage your operation more efficiently.

Support goes far beyond parts and service. From the time you select a piece of Cat equipment until the day you rebuild, trade or sell it, the support you get from your Cat dealer makes the difference that counts. Dealer Capability Cat dealers will provide the level of support you need, on a global scale. Dealer expert technicians have the knowledge, experience, training and tooling necessary to handle your repair and maintenance needs, when and where you need them.

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This manual can be viewed on any computer, as well as zoomed and printed, makes it easy to diagnose and repair problems with your machines electrical system. See more about the documents troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use click link. Training materials from the company for new entrants, training new products, internal circulation for agents or students. Complete download comes in PDF format which can work under all PC based Windows operating system Mac, with a phone or tablet running android or ios operating system also. Find the page about your job, print it off and get working on your Machine. No more ruining your expensive paper shop manual with grease and dirt.

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