Group: Caterpillar
Catalog excerpts
770 ® Off-Highway Truck Engine Engine Model Gross Power – SAE J1995 Net Power – SAE J1349 Weights – Approximate Target Gross Machine Operating Weight Cat C15 ACERT™ 381 kW 511 hp 355 kW 476 hp ® 71 214 kg 157,000 lb Operating Specifications Nominal Payload Class Body Capacity – SAE 2:1 36.3 tonnes 25.1 m3 40 tons 32.9 yd3 • Refer to the Caterpillar® 10/10/20 Overload Policy for maximum gross machine weight limitations. • Capacity with flat floor body.
Open the catalog to page 1770 Off-Highway Truck Engineered for performance, designed for comfort, built to last. Power Train – Engine Power Train – Transmission Structures ✔ The Cat® C15 engine with ACERT™ ✔ The Cat® seven-speed power shift ✔ The 770 features a mild-steel, box-section Technology uses advanced engine transmission matched with the Cat C15 type frame to deliver durability and long technology to reduce emissions engine with ACERT Technology provides life with low operating costs. Castings and without after-treatment. The turbocharged, constant power and efficiency over a forgings are strategically...
Open the catalog to page 2Operator’s Station ✔ The 770 features an all new operator station with enhanced visibility, increased operator space and ergonomically designed controls that set new industry standards for operator comfort. All controls and gauges are positioned for optimum efficiency and total machine control. pg. 9 Engine – Power Train Integration Brake System ✔ The Cat Data Link electronically ✔ Front dry disc and rear oil-cooled, combines engine, transmission, multiple disc brakes are now hydraulically brake and operational information controlled, reducing maintenance costs to optimize overall truck...
Open the catalog to page 3Power Train – Engine The Cat® C15 engine with ACERT™ Technology is built for power, reliability and efficiency for superior performance in the toughest applications. Overhead Cam. A single overhead cam is driven by gears on the front of the engine, which significantly reduce noise and vibration. Caterpillar also has added two pendulum absorbers, mounted at the front of the camshafts to further reduce noise and vibration. Pistons, Connecting Rods, Cylinder Liners. New design and material improvements to the pistons, rods and liners have been made to support the higher cylinder pressures and...
Open the catalog to page 4Turbochargers. The single, waste-gated turbocharger found on the C15 engine is water-cooled to accommodate sudden hot machine shutdowns. Water cools the bearings during this event, preventing bearing seizure. The C15 engine also includes a new turbine housing and an additional spacer bearing. The addition of a spacer bearing eliminates snap rings and, therefore, reduces complexity and improves shaft motion. The turbocharger uses an aluminum compression wheel. Changes enable the C15 to deliver longer life and lower maintenance costs and contribute to good fuel economy. The design also...
Open the catalog to page 5Power Train – Transmission Cat power train delivers more to the ground for greater productivity and lower operating costs. Lock-Up Torque Converter. Combines maximum rimpull and cushioned shifting of torque converter drive with the efficiency and performance of direct drive. The torque converter includes an additional clutch plate to maintain power train capability for higher horsepower and top speed, as well as a new torque converter adapter that provides extra length to house the additional clutch plate and enables the converter components to be changed without having to change the...
Open the catalog to page 6New A-Frame. The new A-frame mounts directly to the spindles. The new A-frame eliminates the “king” bolt and includes a pin and bushing style mounting, consistent with the 777 and 793. This new design is simpler to maintain and service. New Ductile Iron Spindles. A stressoptimized, ductile iron spindle is splined to the rear brakes, reducing brake pack rebuild time by up to two hours. In addition, the spindles are longer and wider with fewer seals for increased strength and durability. Brake Packs. A single-piece brake anchor eliminates more than 200 fasteners and a row of bolted joints....
Open the catalog to page 7Structures Rugged Cat structures are the backbone of the 770 off-highway truck’s durability. Box-Section Design. The 770 frame uses a box-section design, incorporating two forgings and 13 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 the frame provides flexibility, durability and resistance to impact loads, even in cold climates and allows for easy field repairs. • Castings. Castings have large radii with internal reinforcing ribs to...
Open the catalog to page 8Operator’s Station Ergonomically designed for operator comfort, superior control and high productivity. All New Center-Mounted Cab. Center cab positioning provides additional room and creates a walk-in-style cab. The new configuration allows the operator to easily enter and exit the cab. The cab environment offers a spacious surrounding, giving the operator the ability to stretch out and providing superior comfort for an entire operating shift. The operator seat is located on the right hand side of the cab with the trainer to the immediate left. Ergonomic Layout. The 770 operator’s station...
Open the catalog to page 9Engine – Power Train Integration This system electronically combines critical power train components to work together more intelligently to optimize overall truck performance. 1 2 3 4 5 6 7 8 9 Engine Control Module (ECM) Sensors Mechanical Electronic Unit Injector (MEUI) Automatic Retarder Control (ARC) Traction Control System (TCS) Transmission/Chassis Control (TCC) Transmission Wheel Sensor Brakes CAT Data Link Cat Messenger 3 8 4 6 7 ET 9 2 5 1 Cat Data Link. Electronically integrates machine computer systems to optimize overall power train performance, increase reliability and...
Open the catalog to page 10Body-up Shift Limiter. Prevents the transmission from shifting above a preprogrammed gear without the body being fully lowered. This function is programmable via Cat Electronic Technician (Cat ET) and Messenger. Body-up Reverse Neutralizer. Automatically shifts the transmission to neutral if the hoist lever is activated while the transmission is shifted in reverse. Overspeed Protection. The transmission control electronically senses engine conditions and automatically up-shifts one gear to prevent overspeeding. If overspeeding occurs in the top gear, the lock-up clutch is disengaged, and...
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