TURBOCHARGER GP 5146865 - Caterpillar

The following information is generic. For specific machine operation, see the Operation Manual for the tractor the screed is being used with.Receiving First Load of Asphalt
Before the first load is received, a final check should be made to be sure the feeder flights and screw conveyors are working properly.1. Have the truck back toward the paver until the truck wheels are close to the truck hitch push roller. If equipped, be sure the truck hitch is opened until the truck is in position and then move the hitch to the closed position. The paver has a relief slot in the two point connection which absorbs most of the shock caused by trucks backing into the paver.The mat can still be marred if the shock is great enough. Spotters should be used to stop the trucks close to, but short of the paver. The paver should then move into contact with the truck.2. Have the truck start dumping.3. With the feeder switches held in MANUAL, fill the auger chamber with material.4. When the head of asphalt is about half way up the screw conveyor at the outer edges, move the feeder switches to AUTO.Starting to Pave
This story is typical. There may be differences depending on the tractor. See the tractors Operator's Manual.1. Check the controls for proper position.* Grade sensor switches (if equipped) - RUN or STANDBY as appropriate.* Slope sensor switch (if equipped) - RUN or STANDBY as appropriate. The truck brakes must be released enough to allow the paver to push the truck, but not enough to allow the truck to roll away from the paver.2. When all personnel are ready, slowly move the paver up to speed. The machine will start moving forward and the screed will ride off the wooden blocks or strips onto the asphalt.3. Turn the vibrator speed control to adjust the vibrator speed as necessary.4. Check the head of material at the auger and adjust the feeder control paddles and/or feeder gates as necessary. The head of material should be kept as constant as possible.Raising the feeder control paddles will raise the material level in front of the screed. Lowering the paddles will lower the head of material.Moving the feeder control sensors inward will reduce the outward flow of material. Setting the sensors too far inward will cause a material shortage at the outer ends of the screed.Moving the feeder control sensors outward will increase the outward flow of material. Setting the sensors too far outward will cause material to flow around the end gates.If the feeder gates are too low, there will not be enough material, especially at the center of the screw conveyor.If the feeder gates are too high, the screw conveyor will be overloaded. The screw conveyor shaft should barely be covered or the top of the shaft should be visible. Material depth should be approximately the same across the width of the screw conveyor. This setting may vary for certain applications or mix designs.5. Check the mat