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LINES GP-AIR 5088084 - Caterpillar

5088084 LINES GP-AIR Caterpillar parts LINES
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Caterpillar 5088084 LINES GP-AIR

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The HYDRA-MATION System is an all hydraulic system that controls machine elevation, either manually or automatically, and machine steering, manually only. Pressurized hydraulic oil from the auxiliary pump is directed to a hydraulic cylinder, actuating the cylinder and causing an adjustment in elevation or travel direction. The flow of hydraulic oil to the cylinders is regulated by hand operated valves (manual control) or hydraulic sensors (automatic control). The hand operated valves are all located in the control console with the function of each valve clearly marked. An elevation sensor is mounted on each side of the machine and the cross slope sensor is mounted by the fuel tank.The auxiliary pump is an axial piston, variable displacement pump similar in operation to the wheel and cutter pumps. However, the auxiliary pump is a pressure compensated pump; the output of the pump is controlled by a pressure compensator that automatically changes the pump swash plate angle to vary the amount of fluid flow and thus maintain a constant system pressure.When the machine is performing a cutting operation the left front wheel and right wheels travel on uncut grade that may be very uneven, and the left rear wheel travels on the cut grade. In order to assure that the cut grade is even, the left front elevation cylinder is always controlled by an elevation sensor and the right elevation cylinders are controlled by an elevation sensor or the cross slope sensor, whenever automatic elevation control is used. Since the left rear wheel travels on the cut grade, there is no requirement for automatic elevation control and the elevation cylinder remains in a fixed position. The left rear corner of the mainframe therefore remains at a fixed distance above the cut grade (locked to grade). The elevation sensors must have an external reference in order to control the mainframe elevation.1. Single wheel elevation reference assembly - a square support rod with a wheel at the bottom and a reference rod at the top, rides up and down in a support that is connected to the cutter assembly. Since the wheel rides on the uncut grade, irregularities in the uncut grade will be reproduced in the cut grade. If the wheel rolls into a chuck hole, the cutter will drop a corresponding amount. This arrangement will not remove any irregularities in the surface. 2. Dual-wheel elevation reference assembly - this is essentially the same as the single wheel elevation reference assembly, except that an aluminum channel with two wheels is attached to the bottom of the support by use of an adapter. The attachment of the channel to the support allows one wheel to drop into a hole while the other wheel rolls on the grade. Some of the irregularities in the uncut grade will therefore be reduced in the cut grade. This arrangement will reduce any irregularities in the surface by a small amount. 3. Averaging ski - the averaging ski assembly consists of a ski at the front of the

Caterpillar SIS machinery equipment:

Caterpillar SIS

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