AP-650B and BG-225C Asphalt Pavers Caterpillar

While you warm up the machine run the conveyor system. Before you receive the first load of asphalt, a final check of the conveyors and the screed vibrators must be performed. The drag conveyors and auger conveyors must be working properly. The screed vibrators must be working properly.

Use the following procedures in order to check the operation of the conveyor system and the vibratory system.

Conveyor System

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1. Apply the parking brake (3) .

2. Set the speed potentiometer (1) to half speed.

3. Set the travel/pave/maneuver speed control (5) to the PAVE position.

4. Set throttle control (4) to high rpm.

5. Push propel lever (2) completely forward.

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6. Set feeder auto/manual controls (6) to the AUTO position.

7. Set auger auto/manual controls (7) to the AUTO position.

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8. If the machine is equipped with the feeder control sensor paddles, rotate the paddles outward. This ensures that the augers will slow at some point in the range. If the machine is equipped with sonic sensors, position the sensors in order to stop the augers at the desired mix height. When you position the sonic sensors, set mix height dial (9) to one-half. Use the mix height dials in order to adjust the head of material. Refer to the Operation and Maintenance Manual for your screed for further information on the controls that are in the screed control box.

Vibratory System

1. Turn the vibratory switch (8) on the operator's console to the ON position.

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2. Turn the vibratory switch (10) in the right screed control box to the ON position. The vibrators should be operating.

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3. The speed of the vibrators can be adjusted with the adjusting knob (11) on the vibratory manifold.

4. Return the propel lever (2) to NEUTRAL.