SPRING 6I8792 - Caterpillar

Feeder Control Paddle
Illustration 1 g00588441There are two feeder control paddles. There is one paddle on each side of the machine. The feeder control paddles provide feedback to the electronic control module. The mix height control provides the operational input of the height of material that is desired.The feeder control paddles should be mounted within 1 foot of the auger. The angle of the feeder control paddle determines the speed of the drag conveyor and the auger conveyor. The operating range of the feeder control paddle is zero degrees to 45 degrees. Adjust the length of the paddle in order to gain additional material height. Decrease the length of the paddle in order to increase the material height.The feeder control paddles are connected to the round connectors located on the rear of the paver frame near the screed lift cylinder brackets.Sonic Sensor
The sonic sensor emits sound waves in order to detect the material level in front of the screed. The sound waves bounce off the material and back to the sensor. The sensor measures this time in order to determine the material level. The electronic control module then generates an output signal which controls the proportional valve. The proportional valve adjusts the auger and conveyor speeds in order to maintain the proper level of material.The sonic sensors should be placed between 30.5 cm (12 inch) to 76 cm (30 inch) from the face of the material. The sensor should be positioned perpendicular to the face of the material for the best results.The sonic sensors are mounted to the end gate. The sonic sensors are connected to the four pin connector on the screed extender harness. The extender harness is located near the control panel that is mounted on the extender.