SUPPORT AS 5286790 - Caterpillar

the auger distributes the material from the center of the screed to the outer edges of the screed, the material exerts force on the deflector plate. The force on the deflector plate changes as the level of material in the auger chamber changes.Variations affect the mat density and the pressure that is applied against the screed. To ensure optimum stability and a smooth mat, the auger should be operated with as few interruptions as possible.Adjust the height of the auger so that the lower edge of the auger flight is 50.8 mm (2 inch) to 76.2 mm (3 inch) above the finished mat thickness. The speed of the augers should be 40 RPM. The augers should operate at 40 RPM whenever the paver is in operation. The level of material in the auger chamber should be adjusted so that the top half of the auger flights and the auger shaft can be seen at all times. For optimum results, the level of material in the auger chamber should be maintained. If the level of material in the auger chamber increases, the pressure in the strike-off zone will increase and the screed will raise. If the level of material in the auger chamber decreases, the pressure in the strike-off zone will increase and the screed will lower.