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HD785-7

HD785-7
14Pages

Catalog excerpts

GROSS HORSEPOWER 895 kW 1,200 HP NET HORSEPOWER 879 kW 1,178 HP MAXIMUM GVW 163408 kg 360,253 lb OFF-HIGHWAY TRUCK Photos may include optional equipment

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Walk-around Productivity and Economy Features ● High performance Komatsu SAA12V140E-3 engine Net horsepower 879 kW 1,178 HP ● Mode selection system with Variable HorsePower Control (VHPC) ● Two-speed selective reverse gears, RH and RL ● Anti-pitching 4-wheel oil-cooled multiple-disc retarder (AP-FOUR) Retarder absorbing capacity 1092 kW 1,464 HP (continuous descent) ● Automatic Retard Speed Control (ARSC) standard Reliability Features ● Flat face-to-face O-ring seals ● Sealed DT connectors Harmony with Environment ● Komatsu SAA12V140E-3 engine meets EPA Tier 4 interim emissions regulations...

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Operator Environment and Control ● Spacious cab with excellent visibility ● Ergonomically designed cab ● Easy-to-see instrument panel ● Synchronous control of engine and transmission ● Advanced K-ATOMiCS with “Skip-shift” function ● Viscous cab mounts ● Electric body dump control ● Built-in ROPS/FOPS, Level 2 cab ● Parking brakes on 4-wheels ● Supplemental steering ● Pedal-operated secondary brake ● Three-mode automatic hydropneumatic suspension (optional) Easy Maintenance ● Oil-cooled multiple-disc brakes and fully hydraulic-controlled braking system ● Extended oil change interval ● Disc...

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ProducTiviTy & economy feaTures High Performance komatsu saa12v140e-3 engine This engine delivers faster acceleration and higher travel speeds with high horsepower per ton. Advanced technology, such as High Pressure Common Rail (HPCR) injection system and an efficient air-to-air aftercooler turbo-charger enables the engine to meet EPA Tier 2 emissions regulations. High torque at low speed, impressive acceleration, and low fuel consumption ensure maximum productivity. mode selection system with vHPc The system allows selection of the appropriate mode, or , according to the working condition....

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aP-four (anti-Pitching 4-wheel oil-cooled multiple disc retarder) auto retard speed control (arsc) The HD785-7 is equipped with AP-FOUR that applies retarding force on all four wheels. This reduces the possibility of tire-lock and enables effective use of retarder capacity, allowing stable downhill travel. The machine descends slopes smoothly and comfortably without machine body pitching since retarding force on the front and rear wheels is controlled independently. speed and descend grades at a constant speed. This ARSC allows the operator to simply set the downhill travel allows the...

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automatic idling setting system (aiss) This system facilitates quick engine warm-up and cab cooling/warming. When setting the system ON, engine idle speed is kept at 945 rpm when coolant temperature is 50°C 122°f or lower. Speed automatically returns to 750 rpm when coolant temperature goes above 50°C 122°f. small Turning radius The MacPherson strut type front suspension has a special A-frame between each wheel and Photos may include optional equipment. the main frame. The wider space created between the front wheels and the main frame increases the turning angle of the wheels. The larger...

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oPeraTor environmenT spacious cab with excellent visibility Wide windows in the front, side and back, plus plenty of space in the richly upholstered interior, provide a quiet, comfortable environment for better visibility and control over every aspect of operation. Front underview mirrors and rear view camera have been added to improve visibility. ergonomically designed cab The comfortable and ergonomically designed operator's compartment makes it very easy for the operator to reach all controls resulting in greater productivity. easy-to-see instrument Panel The instrument panel makes it...

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synchronous control of engine and Transmission The macPherson strut-Type front suspension During gear shifting, the engine speed is controlled to coincide with transmission rotation speed which reduces shifting shocks. The synchronous control improves the durability of the power train by reducing torque fluctuation. The MacPherson-type independent suspension is utilized on the front wheels. This linkage arrangement allows the front wheel to follow the undulation of the road surface smoothly, realizing excellent riding comfort. advanced k-aTomics The electronically controlled all clutch...

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electric Body dump control viscous cab mounts Large capacity viscous cab mounts with An electric lever is used for body dump control. The lever is excellent damping performance are used short in control travel and can be operated with light hand to mount the cab. They reduce cab effort. The “kick-out function” facilitates body dump vibration significantly and provide a operation, eliminating the need to hold the lever in dump comfortable cab environment with position. Furthermore, body superb quietness and less vibration. seating shock is significantly Noise level at operator’s ear reduced...

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dasH-7 feaTures komatsu components reliable Hydraulic system Komatsu manufactures the engine, torque converter, transmission, hydraulic units, and electrical parts on this dump truck. Komatsu dump trucks are manufactured with an integrated production system under strict quality control system guidelines. A large capacity oil cooler is installed in each hydraulic circuit, improving the reliability of the hydraulic units during sudden temperature rises. Further, in addition to the main filter, a β10 = 3 (min) line filter is located at the entrance to the transmission control valve. This...

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oPeraTor sTaTion advanced monitoring system electric circuit Breaker The Komatsu advanced monitoring system identifies maintenance items, reduces diagnostic times, indicates oil and filter replacement hours and displays abnormality codes. This monitor system helps to maximize machine production time. A circuit breaker is adopted for important electric circuits which need to be restored quickly when a problem occurs in the electrical system. centralized greasing Points Greasing points are centralized at three locations enabling ground level servicing. Wet multi-disc brakes and fully...

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