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Due to electronic rights, some third party content may be suppressed from the. When the engine is running and the hood is open and exposed to the technician. To 1.3:1 (newer engines), while it is common to use between 8 and 12 rib drive fan belts. Figure 11—18 shows a poly-V fan hub drive favored by Caterpillar.
. Specifications. Caterpillar Braking System Superior braking control lets operators focus on productivity. Integrated Braking System The Cat, oil-cooled braking system delivers reliable performance and control in extreme haul road conditions. The integrated system combines the service, secondary, parking brakes and retarding functions in the same system for optimum braking efficiency that does not burn fuel while retarding. Oil-Cooled Multiple Disc Brakes Cat four wheel, forced oil-cooled, multiple disc brakes are continuously cooled by water-to-oil heat exchanger for exceptional, non-fading braking and retarding performance.
Brake Design 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. Long Life An oil film prevents direct contact between the discs. This design absorbs the braking forces by shearing the oil molecules and carrying heat away to extend brake life.
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 (ARC) Hydraulically activated, automatic retarder control system electronically controls retarding on grade to maintain optimum engine rpm and brake system performance. ARC is now adjustable in each gear. Retarding The 797F offers two options for retarding.
Flat/Uphill Haul option is the standard configuration and provides a simplified system for less maintenance. For those applications requiring downhill loaded operation, an optional configuration increases retarding capability. Power Train - Engine The Cat® C175-20 engine is built for power, reliability and efficiency. Engine The Cat® C175-20 quad turbocharged and air-to-air aftercooled diesel engine has enhanced power management capability for maximum hauling performance in the most demanding mining applications. Design The C175-20 is a 20 cylinder, single block, four stroke design that uses long, effective power strokes for optimum efficiency. EPA Compliant The Cat C175-20 engine is compliant with U.S.
EPA Tier 2 emissions standards. Long Life High displacement, low rpm rating and conservative power ratings mean more time on the haul roads and less time in the shop. Cat Common Rail Fuel System The electronically-controlled system senses operating conditions and regulates fuel delivery for optimum fuel efficiency. This precise and flexible fuel system gives the engine the ability to meet emission regulations without sacrificing performance, reliability or durability. Cooling System The MESABI™ Radiator comes standard on the 797F. The flexible core design offers long life, high durability and easy serviceability. Starter The tank on the air start system is ground level for easy serviceability.
Power Train - Transmission More power to the ground for greater productivity. Mechanical Power Train The Cat mechanical drive power train and powershift transmission provides unmatched operating efficiency and control on steep grades, in poor underfoot conditions and on haul roads with high rolling resistance. 1 - Transmission The Cat seven speed, planetary power shift transmission is matched with the C175-20 engine to deliver constant power over a wide range of operating speeds. Robust Design - Designed for the higher power of the C175-20 engine, the proven planetary power shift transmission is built tough.
Long life - A dedicated oil tank and circuit provides cooler, cleaner oil for maximum performance and longer component life. Electronic Clutch Pressure Control ECPC provides maximum performance, smooth shifting, long clutch life and a more comfortable ride.
2 - Lock-Up Torque Converter Combines maximum rimpull and cushioned shifting of torque converter drive with the efficiency and performance of direct drive. The lock-up torque converter engages at approximately 8 km/h (5 mph), delivering more power to the wheels. 3 - Final Drives Cat 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. Engine/Power Train Integration Electronically combined power train components optimize performance. Reverse Speed Inhibitor Prevents shifts into reverse when forward ground speeds are in excess of 4.8 km/h (3 mph).
Cat Data Link Electronically integrates machine computer systems to optimize overall power train performance, increase reliability and component life and reduce operating costs. Body-Up Shift Inhibitor Prevents the transmission from shifting above the pre-programmed gear without the body fully lowered. The machine can move forward but the speed is limited to avoid excessive racking when pulling away from a dump site. Overspeed Protection The transmission control electronically senses engine conditions and automatically up-shifts one gear to prevent overspeeding. Programmable Top Gear Transmission top gear maximum can be set using the Cat Electronic Technician service tool to help the operator maintain speed limits. Downshift Inhibitor Prevents engine overspeeding by keeping the transmission from downshifting until engine speed reaches the downshift point. Controlled Throttle Shifting Regulates engine rpm during shifting to reduce power train stress and clutch wear by controlling engine speed, torque converter lock-up and transmission clutch engagement for smoother shifts and longer component life.
Truck Body Systems Cat designed and built for rugged performance and reliability. Cat Truck Bodies The 797F is offered with four MSD II (Mine Specific Design) body options in conjunction with a configurable liner system to achieve the most efficient hauling solutions at the lowest-cost-per-ton. Body Selection The Cat truck body program is committed to providing the most efficient and highest value body solution for your operation.By studying your mine site and understanding the overall operational requirements and constraints, the body can be configured to meet the unique needs of your application.
MSD II Body The MSD II bodies are the number one choice in the mining industry. The internal body shells are designed and manufactured for superior impact and wear protection. Coupled with the Caterpillar mine specific design process the MSD II bodies optimize the balance of payload and durability.
Truck Body Liners A variety of liner options are available to save weight and extend body life through impact and wear management. The mine specific design system is utilized to provide you with the optimum liner for long life at your mine site.
Structures Superior Cat structures are the backbone of the 797F's durability. Durable Design Rugged cylinders utilize large diameter bore and low pressure nitrogen/oil design for long life with minimal maintenance. Suspension System Designed to dissipate haul road and loading impacts for longer frame life and a more comfortable ride. Box Section Design The 797F uses a box-section design, incorporating two forgings and 14 castings in high stress areas with deep penetrating and continuous wrap-around welds to resist damage from twisting loads without adding extra weight. 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. Castings Castings account for 80 percent of the frame's weight and are key to providing durability in some of the world's toughest conditions. The large radii castings are resilient to frame flexing and ensure long life.
Integral Four-Post Cab Resiliently mounted to the frame to reduce vibration and sound, the integral ROPS is designed as an extension of the truck frame. Front Front cylinders with preset caster and camber are mounted on the frame and serve as steering kingpins for a tight turning radius with excellent maneuverability and low maintenance.
Rear Rear cylinders allow oscillation and absorb bending and twisting stresses caused by uneven and rough haul roads rather than transmitting them to the main frame. Four-Bar Link Rear Suspension The four-bar link suspension transfers and supports loads to the frame more efficiently than an A-frame design and allows more service area around the transmission. Steering System Hydraulic steering control system is designed for exceptional smoothness and precise control. A separate circuit prevents cross contamination for long life. Operator's Station Ergonomically designed for all-day comfort, control and productivity. Ergonomic Layout The all new F-Series 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 offers exceptional visibility, allowing the operator to maneuver with confidence for high productivity. The air cleaners have been relocated to the front of the truck, allowing the operator increased visibility. 1) Air Suspension Seat with Three-Point Operator Restraint 2) Hoist Lever 3) Secondary Brake Pedal 4) Monitoring System 5) Steering Column 6) Transmission Controls 7) Gauges 8) Storage Compartment 9) Air Suspension Trainer Seat 10) Operator Window 11) Operator Controls 12) Heating/Air Conditioning 13) Four-Post ROPS 14) Camera System Monitor (optional) 15) MineStar Monitor (optional) 16) Cup Holder 17) Dome Courtesy Lights Monitoring System Vital machine health and payload data keeps production at peak levels. VIMS™ 3G Monitoring System The third generation VIMS™ monitoring system provides critical health and payload data in real-time to keep the 797F performing at top production levels. Sensors throughout the machine enable VIMS to quickly exchange and monitor information from all systems. Users can view up to 10 different machine parameters at a time.
Service technicians can quickly download data and generate reports in the office, shop or cab by connecting directly to the system. On-board, various levels of alerts provide operators with notification and severity of abnormal machine health conditions.
Data can be used to improve effectiveness of scheduled maintenance programs, maximize component life, improve machine availability and lower operating costs. Production and Payload Management Information is available to monitor and enhance truck/loading tool effectiveness, improve fleet productivity and help extend the life of truck frames, tires, rims and power train components, while lowering operating and maintenance cost. External Payload Indicators External lights signal loading tool operators when to cease loading for optimum payloads without overloading. Optional payload displays with digital numeric monitor are available.
Road Analysis Control Optional system monitors haul road conditions by measuring frame rack, bias and pitch to improve cycle times, frame life, tire life and fuel efficiency. VIMSpc Off-board software reporting program that allows service personnel to download a complete record of machine health and productivity data. Health and payload reports can be generated for more effective machine management which reduces downtime and lowers operating costs. Advisor Display The Advisor display provides real-time machine performance and basic trip, maintenance and diagnostic data. Various machine parameters can be viewed on the display including coolant temperature, oil pressure, current gear selection, current payload and more. VIMS Supervisor Optional software allows mine personnel to easily manage and interpret VIMS data for optimum fleet management and productivity.
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Safety Cat mining machines/systems are designed with safety as the first priority. Product Safety Caterpillar has been and continues to be the industry leader in proactively developing mining machines that meet or exceed safety standards. Integral ROPS Cab Resiliently mounted to the main frame to reduce vibration and sounds, the integral ROPS structure is an extension of the truck frame and exceeds SAE requirements. Access/Egress A 600 mm (23.6 in) wide stairway and walkway offer easy access and egress from the ground to the cab. Brake Systems Four corner oil braking system provides excellent control in slippery conditions.
The system assures braking in the event of complete hydraulic failure. Overload Policy Safety is integral to maintaining the highest productivity in mining operations.
The Caterpillar 10/10/20 Overload Policy assures that steering and braking systems have sufficient capacity to perform, even at 20 percent overload. Other Safety Features.
Slip resistant surfaces. 76 mm (3 in) wide orange, three-point operator restraint. Wide angle mirrors. Body raised indicator. Body retaining cables.
Guard rails. Reverse neutralizer when dumping. Low interior sound level Isolation Box Lockout, tagout box mounted on front bumper includes engine shutdown switch, battery lockout, starter lockout and transmission lockout. SAFETY.CAT.COM™ Customer Support Caterpillar has the most experienced dealer network in the world. Commitment Makes the Difference Cat dealers offer a wide range of solutions, services and products to help you lower costs, enhance productivity and manage your operation more efficiently.
From the time you select a piece of Cat equipment until you trade or sell it, the support you get from your Cat dealer makes the difference. Dealer Capability Cat dealers 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. Product Support When Cat products reach the field, they are supported by a worldwide network of parts distribution facilities, dealer service centers and technical training facilities to keep your equipment up and running. Cat customers rely on prompt, dependable parts availability through our global dealer network, meeting your needs 24/7. Service Support Cat equipment is designed and built to provide maximum productivity and operating economy throughout its working life. Cat dealers offer a wide range of service plans that will maximize uptime and return on your investment, including:.
Preventive Maintenance Programs. Diagnostic Programs, such as Scheduled Oil Sampling and Technical Analysis.
Rebuild and Reman Options. Customer Support Agreements Application Awareness Operating and maintenance costs are influenced by many application and site-specific factors, such as: material density, loading position, payload, grades, speeds, haul road design and maintenance. Your Cat dealer can provide you with an understanding of the effects application characteristics and operating techniques have on maintenance and operating costs. Operation Your Cat dealer offers training programs to help operators improve productivity, decrease downtime, reduce operating costs and enhance safety.
Serviceability Reduced maintenance time results in more productivity. Servicing Ease Easy access to daily service points simplifies servicing and reduces time spend on regular maintenance procedures. Enhanced serviceability and long service intervals are designed to increase machine availability and productivity. In-Frame Access Permits easy access to major components for easy servicing and removal. Ground Level Access Grouped ground level points allow convenient servicing of tanks, filters, drains, batteries, AutoLube system, pressure taps, screens, fluid sight gauges 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. Scheduled Oil Sampling S.O.SSM sampling valves speed sampling and analysis reliability.
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. Mechanical Power Train Completely designed and manufactured by Caterpillar to assure maximum efficiency, high quality, extended service life and low operating costs.
Component Match The CAT mechanical power train is designed for optimum component match. A wide application range is available in each gear. Transmission/Chassis Control (TCC) Transmission/Chassis Control (TCC) module communicates over the CAT Data Link with the engine ECM to manage engine speed during shifts for increased clutch life and operator comfort. Torque Converter Lock-up torque converter combines the maximum rimpull and cushioned shifting of torque converter drive with the efficiency and performance of direct drive.
Transmission Six-speed, planetary power shift transmission is designed for the high horsepower of the 3516B engine. Final Drives Large, differential and double-reduction final drives provide torque multiplication of 28.8:1 to further reduce stress on the drive train. Steering System The hydraulic steering system provides precise, controllable steering.
Rims and Wheels Cat center mounted rims and cast rear wheels are mounted using studs and nuts to minimize maintenance and provide outstanding durability. Engine/Power Train Integration Combining the electronic engine control with the Caterpillar electronically programmable transmission control allows these critical power train components to work more intelligently. Improved Diagnostics/Serviceability The electronic engine and transmission controls provide enhanced diagnostic capability. CAT Data Link The CAT Data Link electronically connects the engine and transmission controls to optimize overall power train performance, reliability and component life for reduced power train operating costs. Integrated Braking Control (IBC) Integrated Braking Control (IBC) combines braking control enhancements into one system for efficiency and simplification. Brakes Reliable braking gives operators the confidence to concentrate on truck operation and maximum productivity. Disc Brakes Caterpillar four-wheel forced oil-cooled, multiple disc brakes are continuously cooled for exceptional, non-fading braking and retarding.
Oil-cooled Disc Brakes Oil-cooled disc brakes are designed with large discs and plates for reliable, adjustment-free operation providing superior performance and service life in comparison to shoe-type and dry-disc system. Oil Film An oil film prevents direct contact between the discs. The film absorbs the braking forces by shearing the oil molecules. The heat generated is transferred to the oil and carried away to oil coolers, extending brake life. Pistons A Caterpillar patented, two-piston design combines the service, secondary, parking brake, and retarding functions in the same robust system. Fuel No fuel is used during retarding. The engine provides additional retarding by running against compression on downhill hauls.
Four Corner Retarding Four corner retarding with 60/40 percent split (rear/front) in braking effort provides superior control in slippery conditions. Structures The backbone of the Cat truck. Frame The 789C frame uses a box-section design and deep penetrating, continuous welds resist damage from heavy loads without adding extra weight. Castings Castings have large radii with internal reinforcing ribs to dissipate stresses that can cause fatigue and cracking. Rollover Protection Structure (ROPS) Rollover Protection Structure (ROPS) is integral to the cab and frame. The cab is resiliently mounted to the frame to reduce vibration and noise levels. Suspension System The suspension system is designed to dissipate haul road and loading impacts.
Operator's Station Control the truck with ease and comfort to maximize productivity. Brake Pedal Secondary brake pedal is located on the floor to provide easy operator control.
Storage Large storage compartment is located under the trainer seat. Cab Integral, sound-suppressed ROPS/FOPS Cab is standard. Seat Ergonomically designed, air suspension seat is fully adjustable for operator comfort. Displays Vital Information Management System (VIMS) displays and operator key pad for precise machine status information.
Steering Wheel Tilt and telescoping steering wheel improves operator access and comfort. Transmission Console Transmission console has been redesigned with backlit gear indicators and ergonomic shift knob. Hoist Control Electric hoist control is mounted next to the operator's seat for ease of operation. This is a low effort control to minimize operator input. Visibility Exceptional all-around visibility reduces strain and fatigue allowing confident maneuverings and increased productivity.
Trainer Seat Trainer seat has wide hip and shoulder room. A back rest and seat belt are standard. An optional air suspended seat is available. Operator Window Powered operator window is standard.
Sliding trainer seat window is standard. Operator Controls Operator controls for turn signal, high beam, intermittent windshield wiper, windshield washer and horn have been redesigned for operator efficiency and comfort. Heater and Air Conditioner Standard heater and air conditioner have a more efficient design, permitting increased flow, modulation, and serviceability.
These systems provide fresh, pressurized, temperature-controlled air circulation. Radio Radio ready cab prewired with power converter, speakers, wiring harness, and antenna. Provision for add-on communication systems. Vital Information Management System (VIMS) Provides operators, service technicians and managers with vital machine and production data. Message Center Message center displays operator requested information and utilizes a three-category warning system to alert the operator to an abnormal machine condition. Caterpillar Designed System Vital Information Management System (VIMS) is an integrated Caterpillar designed system that monitors machine performance to provide critical information on a real-time basis.
Gauge Cluster Gauge cluster in the cab maintains a constant display of several, machine functions. Vital Information Management System Keypad Vital Information Management System keypad allows the operator or service technician to access through the message center, gauge values (real-time) and stored information. The keypad can also be used by service personnel to access diagnostic information.
Alert System The three-category alert system provides advisory information on an exception basis to the operator via the message center on abnormal machine conditions. Trouble Shooting The Vital Information Management System simplifies trouble shooting, reduces down time and lowers operating costs by allowing minor problems to be corrected before they cause extensive damage. Production Management Production management, a feature component of the Vital Information Management System (VIMS), enhances truck and loading tool effectiveness for improved fleet productivity and reduced operation and maintenance cost. Off-Truck Software Package The Vital Information Management System off-truck software program (VIMS-PC) allows service personnel to download a complete record of production information, machine data events and system diagnostics to a laptop computer. Engine The field proven 3516B EUI engine delivers the power and reliability necessary to perform in the world's most demanding mining application. Torque Rise The torque rise provides high lugging force during acceleration and less down shifting on grade or in soft underfooting for faster cycle times. Electronic Unit Injector (EUI) Electronic Unit Injector (EUI) is a proven high-pressure, direct injection fuel system.
Electronic Control Module (ECM) Electronic Control Module (ECM) utilizes advanced engine management software to monitor, control and protect the engine utilizing self-diagnosing electronic sensors. Pistons Two-piece articulated pistons utilize a deep bowl, low crevice volume design that enhances combustion efficiency, improves fuel efficiency and lowers emissions. Aftercooler Separate circuit aftercooler allows the aftercooler coolant to operate at lower temperatures than jacket water for a denser air charge in the combustion chamber. EUI Results 3516B EUI has improved fuel efficiency by three percent; NOx levels are reduced by 20 percent and transient smoke levels are down by as much as 15 percent. No derating up to 2290 m (7,500 ft). Reliability and Durability 500 hour service interval for engine oil, oil and fuel filter changes, increasing mechanical availability and production. Integrated Braking Control (IBC) Electronically combines Automatic Retarding Control (ARC) and the Traction Control System (TCS) into one, integrated control system.
Production Automatic Retarder Control results in increased production with faster downhill speeds. By maintaining consistently higher engine speeds, overall truck speed will be higher than a manually controlled truck. Controllability Automatic Retarder Control results in excellent controllability and reduced operator effort. Automatic brake modulation provides a smoother ride, better control in slippery conditions and allows the operator to focus more on driving.
Troubleshooting Automatic Retarder Control results in faster troubleshooting and diagnosis with self-diagnostic capability and the ability to communicate with ET through the CAT Data Link. Operator Fatigue Automatic Retarder Control results in reduced operator fatigue resulting from ease of operation. Engine Overspeed Protection Automatic Retarder Control results in engine overspeed protection.
Automatic Retarder Control Production Advantages Automatic Retarder Control can increase vehicle speed by as much as 15 percent over manual retarder control. Traction Control System (TCS) Traction Control System (TCS) improves traction and truck performance in poor underfoot conditions by electronically monitoring and controlling wheel slippage. Truck Body Systems Caterpillar builds a variety of rugged, durable bodies to perform in the toughest mining applications. Liner Options Liner options are available to help extend the body system's life.
A variety of steel grades provide options to absorb impacts while resisting abrasion. Dual-Slope Body Design Standard dual-slope body design provides excellent load retention, a low center of gravity and clean dumping characteristics.
Flat Floor Body Design Flat floor body design provides smooth, metered dumping and higher dump clearances. Custom Options Custom truck body options are available to match individual mine applications. These products are specifically designed to match material hauled and provide an extended service life. Customer Support and Serviceability Caterpillar machines are designed to spend less time down for maintenance, allowing more time on the job. Parts Availability Most Cat parts are immediately available off the shelf. Cat dealers rely on our worldwide computer network to find parts instantly and minimize your machine downtime.
Flexible Financing Your dealer can arrange attractive financing on the entire line of Cat equipment. Machine Management Service Cat dealers help manage your equipment investments. Literature Support Operation and maintenance manuals are easy to use helping you get the full value of your equipment investment. Remanufactured Components Remanufactured components are economically available for many Caterpillar components. Ground-level Access Ground-level access provides convenient servicing to tanks, filters and compartment drains, as well as engine shutdown capability. Electronic Technician Caterpillar Electronic Technician (ET) accesses machine data easily. It quickly runs tests, makes calibrations and retrieves system data to help find and correct problems before they become costly failures.
Maintenance Platform The maintenance platform provides access to engine, air filters, steering hydraulic tank and battery compartment. Automatic Lubrication System The automatic lubrication system provides grease to necessary components on a regular basis to reduce maintenance and improve machine availability. Fast Fill Service Center Fast fill service center (Wiggins) features high speed fuel and oil exchange.
Scheduled Oil Sampling Scheduled Oil Sampling valves speed sampling and analysis reliability. Oil Renewal System (ORS) Oil Renewal System (ORS) is an option available which extends oil change intervals and reduces waste oil handling by continuously burning oil from the sump through normal engine operation. Cylinder Heads Individual, interchangeable engine cylinder heads can be removed easily for visual inspection of internal parts. In-frame Access In-frame access allows maintenance and minor repairs without major component removal. Quick Coupler Pressure Taps Quick coupler pressure taps are located in most hydraulic systems providing clear, quick pressure checks and diagnostics. Air Filters Radial seal air filters are easy to change, reducing time required for air filter maintenance. Electrical Connectors Sealed electrical connectors lockout dust and moisture.
Wires are color coded for easy diagnosis and repair. Wiring harnesses are braided and have a protective sheath to prevent damage.