User manual CATERPILLAR AS4251C BROCHURE

[. . . ] The AS4251C lay material to the desired width and depth while providing a smooth finish with initial compaction. 8 Cat® Asphalt Pavers continue to lead the industry and meet your demanding job requirements. Many easy-to-use features and technologies have been developed in order to guide your crew in producing high quality mats time and time again. 2 Versatility Defines the AP655D The AP655D excels in a wide range of applications from routine commercial jobs to demanding highway operations. [. . . ] The AMS display also allows the operator to: Calibrate the machine components Set the automatic engine speed control Monitor engine rpm's and operating temperatures Determine the required paving speed and tonnage requirements for a particular job Determine performance parameters such as distance traveled, operating hours, paving distance, paving hours, and engine fuel consumption Set the optional friction steering tension to the operator's preference Advisor Display 5 Mobil-trac Undercarriage Performs in All Applications The Mobil-tracTM undercarriage provides superior durability while delivering unmatched mobility, ride, and traction in a variety of conditions. The Mobil-trac undercarriage combines the flotation and traction benefits of a crawler suspension with the mobility and ride quality of a wheel-type paver. The Mobil-trac system includes a durable, high strength rubber track belt with a thick outer cover and internal layers of flexible steel cable. The Mobil-trac's ground contact area is 3020 mm long and 406 mm wide. This large footprint provides uniform weight distribution over the entire length of the belt. Both belt styles are 58 mm thick and provide good performance and wear characteristics, however, the smooth belt with beveled edges provides less disturbance on soft base materials. A fixed displacement motor drives a two-speed planetary providing quick mobility around the job site. Friction Drive Wheel Smooth Belt Oscillating Bogies Automatic Belt Tensioning System Tread-Bar Belt Two Speed Planetary Steel Track Undercarriage The steel track undercarriage is available as an economic alternative to the Mobil-trac. A special quad bogie is positioned near the rear of the steel track in order to evenly distribute the load. The sealed and lubricated links include a split master link for dependable performance. The track pads contain a special rubber compound in order to provide long life and good traction. single Speed Planetary Quad Rear Bogie Single Speed Planetary Drive. A variable displacement motor drives a single-speed planetary that provides variable speed selection. This large footprint provides uniform weight distribution over the length of the track. Automatic Track Tensioning System D3 Track Rails 6 Independent Material Handling System Promotes Hands-Free Operation The material handling system promotes hands-free operation by providing features such as independent control of each auger and each conveyor. The material delivery system provides precise mix delivery with minimal operator monitoring. The left and right conveyors in addition to the left and right augers are controlled independently. The conveyors have outboard-mounted motors, reducers and drive chains that maximizes the tunnel area and reduces segregation. The auger drive assembly is independent of the tractor which allows the distance between the two conveyors to be significantly reduced. Keeping the conveyors close together allows the material to flow together more easily as it discharges into the auger cavity. The tunnel and auger design eliminates voids under the chain case in order to minimize segregation. The auger assembly is hydraulically adjustable with a range of 215 mm. [. . . ] Three steering modes including pave, travel and maneuver are selectable at the operator's control console. electrical System The 24-volt DC electrical system is designed for improved durability , reliability and ease of service. Two 12-volt batteries with 1400 cranking amps each and a 80-amp alternator are used in the system. Wires are loomed with vinyl-coated nylon braid to improve the overall integrity of the electrical system and to protect against abrasion. [. . . ]