User manual CATERPILLAR 7495 BROCHURE
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Manual abstract: user guide CATERPILLAR 7495BROCHURE
Detailed instructions for use are in the User's Guide.
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Structures Superior structural design delivers stateof-the-art ride, capacity, and material control while assuring the durability and reliability customers expect from Caterpillar. 7
Push-Pull Arrangement (7495) For maximum production capability, Caterpillar offers an optional push-pull arrangement for the 7495, which allows two push-pull scrapers to act as a selfloading machine. 12
Auger Arrangement Provides self-loading capability with the same wide material appetite as an open bowl machine. 13
Quick loading, high travel speeds and the ability to load and dump on the run yield ® fast cycle times, allowing Caterpillar Wheel Tractor-Scrapers to consistently deliver high productivity.
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Operator Station
Electronic Controls
Scraper Bowl
® Convenient control placement and a The electronic controls respond to Caterpillar Scraper bowls are designed comfortable work environment are keys operator commands and input from for excellent material flow and retention to high productivity. [. . . ] Allows the operator to manually set the top gear (3rd 8th) available to match conditions or to match the hauling speed of the fleet to specific job-site needs. The hydraulic retarder can be used to slow the ground speed of the machine when entering the cut or fill area to allow the transmission to downshift. It also reduces service brake wear and enhances machine control.
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Structures
Superior structural design and construction optimize performance and reliability.
Cushion Hitch. The electronically actuated cushion hitch incorporates a parallelogram-type linkage for exceptional strength with nitrogen accumulators to deliver a smooth ride for enhanced operator comfort. · cushion hitch lock down control for positive cutting edge down pressure when loading or spreading controlled oil flow dampens rebound oscillation leveling valve automatically centers piston in cylinder for all loads steel castings are used extensively to eliminate many welded joints and increase strength double-kingbolt design withstands high external forces and simplifies installation and removal
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Load cylinder Hitch castings Scraper gooseneck Nitrogen accumulators Orifice Oil from tractor hydraulic system Leveling valve Free floating pistons
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Nitrogen Accumulators. Vertically mounted hydraulic cylinder transfers road shocks to nitrogen accumulators. Nitrogen accumulators absorb and dampen road shocks, thus reducing the shocks being transmitted to the operator. An operator-selectable lockout switch, located on the joystick, locks the cushion hitch for improved control of the cutting edge during loading and dumping.
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Operator Station
State-of-the-art productivity and operator comfort.
Seat Suspension. The new standard seat suspension features a high performance air shock absorber with a self-contained air compressor. For operators requiring additional damping, dual shock absorbers in the seat suspension are available. Standard air conditioning system with relocated louvers enhances airflow in the cab. A wiring breakout is standard, eliminating the need to splice into existing wires. Electronic controls optimize the timing setting for varying conditions. The ADEM A4 controller matches timing to the load on the engine, engine rpm and temperature. The ADEM A4 controller reads electronic sensors to determine the optimum fuel/air ratio. Fuel is precisely controlled during cranking, starting and acceleration to reduce smoke. The engine electronics are faster and more efficient than mechanically controlling the governor rack position.
Simplified System. The electrical system has been redesigned to utilize three electronic control modules (ECM) on the tractor instead of four. If the restriction exceeds the allowable limit, it alerts the operator by sending a message to the Electronic Monitoring System (EMS III). The ADEM A4 controller activates the ether injection system during engine cranking to enhance cold weather starting. At high altitudes the system automatically de-rates fuel delivery as a function of barometric pressure sensed by the system's atmospheric pressure sensor.
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Scraper Bowl
Designed for optimum loading, material retention and ejection.
Caterpillar Ground Engaging Tools (G. E. T. ). A wide variety of Ground Engaging Tools (GET) options such as standard, serrated, and abrasion resistant material (ARM) are available to optimize scraper loading in various materials. [. . . ] Make detailed comparisons of the machines under consideration before purchase. Cat dealers can estimate component life, preventive maintenance cost, and the true cost of lost production. Consider the financing options available as well as day-to-day operating costs. Look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long run. [. . . ]
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