Aligning The Brake Beams; Aligning The Laser - Acer Wood Runner Manual

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3. Loosen the adjustment screws for the Receiver and rotate and tip it until the green LED is lit. Sweep it

left to right and up and down to locate the midpoint of the "on" (green LED) before tightening the

adjustment screws. Amber or red LED's indicate improper alignment.

8.7 ALIGNING THE BRAKE BEAMS

Misaligned sensors may cause random E-stop occurrences or may prevent the operation of the machine

altogether. Use the following procedure to properly align the obstruction sensors.

1. Depress the E-stop button with the system powered up. Do not enable the system.

2. Starting with the Emitter (the part of the sensor located at the outer end of the Gantry) loosen

vertical and horizontal the mounting clamps slightly to allow the sensor to be rotated. You will

need another person watch the Receiver (located closest to Runway) for the amber LED to light.

This LED will be lit if the sensor is aligned but it does not represent the optimal alignment. Sweep

the Emitter to the left until the amber LED is off and then back to the right until the sensor goes off

again. Set the sensor at the approximate center point between the left and right points and tighten

the horizontal clamp. Repeat this procedure for the vertical axis of the Emitter.

3. Loosen the Receiver clamps slightly and sweep the sensor horizontally to find the midpoint and

then tighten the clamp. Repeat this for the vertical axis.

It is important that the Laser sensor beam is aligned parallel to the Picking head vertical travel. A misaligned Laser

will cause the Pickup Screws to land off center on the board when the lumber stack is low. Follow this procedure to

correct the alignment.

1. Energize the system to raise the Picking Head is at its highest level. Press the E-stop button before entering the

Hazardous Zone.

2. Hold a tape measure against the side of the horizontal bar in the Picking Head and position it so that the Laser dot

shows up on the blade of the tape measure. Record this reading.

3. Leave the Hazardous Zone and enable the system. Using the head down button on the Manual screen lower the

Picking Head to its lowest position. Again check the measurement as in step 2 and record.

4. If the measurements from step 2 and step 3 are more than 1/8" different you will need to re-align the Laser.

Remove the protective guard from the Laser to access the adjusting screws. Slightly loosen the top screw and

tighten the bottom screw if the measurement in step 3 was the greater of the two. Reverse the adjustment if step

2 measurement was the greater of the two. Adjust the Laser until both measurements are within 1/8'. Record the

final measurement for setting the Laser offset on the Settings screen.

5. Replace the protective cover and tighten the screws securely.

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