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Caterpillar® F-Series Off-Highway Trucks Deliver Greater Performance, Productivity, Reliability, Operator Comfort and Control
January 28th, 2008
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Company: Caterpillar Inc
The Caterpillar® 773F, 775F and 777F Off-Highway Trucks incorporate many new features to enhance performance, productivity and reliability, as well as operator comfort and control. Each of the trucks has a new engine and radiator, enhanced transmission and brakes, and a new cab and operator station. The new trucks offer well-designed access for operators and service personnel. A new information system, Cat® Messenger, aids both maintenance technicians and operators.
A variety of body styles for the 773F and 775F enable a customer to configure a truck for the specific application”to achieve optimum capacity and durability. Caterpillar now offers dual slope and flat floor body systems with three different steel liner packages and two rubber liner packages on the 773F and 775F. The 777F now has a rubber liner available in addition to the steel liner offered previously.
The 773F and 775F are designed for quarry and construction applications in the 60-ton (54.4-tonne) and 70-ton (63.5-tonne) payload classes, respectively. The two smaller F-Series models replace the 773E and 775E. The 777F is in the 100-ton (90.9-tonne) payload class, and it replaces the 777D. The versatile 777F has applications in quarrying, construction and mining.
Cat engines with ACERTTM Technology, advanced radiator, drive train
The F-Series trucks feature Cat engines with ACERTTM Technology for fuel-efficient operation, emissions compliance and responsive, reliable performance. The 773F and 775F both use the Cat C27 engine”producing net power of 703 hp (524 kW) in the 773F and 740 hp (552 kW) in the 775F. The 777F has a Cat C32 engine with ACERTTM Technology. Net power is 938 hp (700 kW).
In the 773F the C27 engine meets U.S EPA Tier 3 and European Union Stage IIIa requirements. The C27 in the 775F meets U.S. EPA Tier 2 and European Union Stage II regulations, as does the C32 in the 777F. The engines feature the Caterpillar MEUITM Fuel System, which combines the technical advancement of electronic control with the simplicity of direct, mechanically controlled fuel injection.
Due mainly to the efficient combustion technology, the engine service interval for each of the trucks is 500 hours”twice that of the previous truck models. QuickEvacTM, the Caterpillar on-board engine oil evacuation and pre-lube system, is standard on F-Series trucks and reduces oil change labor time by as much as 50 percent.
A new modular radiator design provides 3.5 times more fin spacing, making it easier to clean and service. The single-pass flow cools more efficiently, too, when compared to the dual-pass system used previously.
The F-Series seven-speed transmission provides a superior ride with smoother speed and directional shifts through the use of the Electronic Clutch Pressure Control (ECPC) system. The system individually modulates each clutch in the transmission and extends life of drive train components.
The F-Series brakes are all hydraulic, rather than air over hydraulic. The result is superior reliability, response, control, serviceability and modulation. The parking brake is integrated into the gear selector for easy operation.
Automatic retarder control (ARC) is standard on F-Series trucks. ARC automatically controls braking on grade and maintains engine speed at approximately 1,900 rpm. ARC protects the engine from overspeeding, improves fuel efficiency, provides better control of the truck, increases productivity and eases the burden on the operator. In addition to the standard automatic retarder, the compression brake option offers a 35 percent increase in retarding speed capabilities.
Designed for comfortable and efficient operation
The new trucks use the same all-new operator station, designed to provide superior operator comfort and control. The cab has 100 percent more glass area, 18 percent more volume and more than 7 inches (177.8 mm) increased width than the previous models. An integrated stairway access system allows the operator to more easily get on and off the truck.
A new ergonomic design and layout of controls promotes operator efficiency and reduces operator fatigue. The seat is now in the center of the cab, which provides additional room and walk-in comfort. The trainer seat is to the left of the operator seat. The Cat Comfort Seat delivers comfort, support and durability. The new heating, ventilation and air conditioning system produces greater airflow and even temperature throughout the cab.
An optional HID lighting package provides superior nighttime visibility. Also available is an optional camera system, which provides a view to the rear of the truck through a 7-inch (177.8 mm) LCD color monitor in the cab.
Valuable machine information is available to the operator or technician through Cat Messenger, which provides real-time and stored machine performance and diagnostic data. An optional VIMSTM monitoring system offers more extensive machine function and payload data. For payload recording, the enhanced Truck Payload Management System (TPMS) attachment now has second gear weighing capability and 2,400-cycle storage for data analysis.
For more information about Caterpillar off-highway trucks, customers should contact their local Cat dealer or visit the website at www.cat.com.
Brief Specifications for 773F, 775F, 777F Off-Highway Trucks
|Payload class||60 tons (54.4 tonnes)||70 tons (63.5 tonnes)||100 tons (90.9 tonnes)|
|Body capacity*||46.5 cu yd(35.6 cu m)||55.3 cu yd(42.3 cu m)||78.5 cu yd(60 cu m)|
|Gross machine weight||222,000 lb(100 698 kg)||242,000 lb(109 770 kg)||360,000 lb(163 293 kg)|
|Engine model||Cat C27 ACERTTM||Cat C27 ACERTTM||Cat C32 ACERTTM|
|Net engine power||703 hp (524 kW)||740 hp (552 kW)||938 hp (700 kW)|
|Gross engine power||740 hp (552 kW)||787 hp (587 kW)||1,016 hp (758 kW)|
*Standard body, heaped SAE 2:1