10.2.1Calibration
To establish the distance between conveyor table and sanding belt, proceed as follows:
1.Connect power and air to the sander, and turn the air valve switch on to tighten the sanding belt. NOTE: The controller will not move the table if the air valve switch is off.
2.Press and hold the UP S button on the keypad to raise the conveyor table until the thicknesser knob (Figure 21) contacts the limit switch. The table will automatically stop while making slight contact with the sanding belt.
3.Press “0” (zero) on the keypad (the display will begin flashing and the input light will be lit). Then press SET for 2 to 3 seconds. The display will now read zero. This is the distance between sanding belt and conveyor table, upon which further movement of the table can be based.
4.Input a number using the keypad (display will begin flashing and the input light will be illuminated).
5.While the display is still flashing, press the START button on the keypad (run light will now be illuminated). The conveyor table will move to the desired distance from the sanding belt.
10.2.2Using the LED for Operations
The sander has a thicknesser which automatically sets the table at the thickness of your workpiece:
1.Place your workpiece upon the conveyor table and move it below the thicknesser, as shown in Figure 21. Keep the workpiece flat upon the table. Press and hold the UP S button on the keypad to raise the conveyor table. When the workpiece contacts the limit switch the conveyor table will stop. The table is now positioned at the thickness of your workpiece.
2.Remove the workpiece.
3.Press and release the UP S button, which will raise the table for the first sanding pass. NOTE: The arrow buttons are programmed to move the table in .005” increments.
10.2.3Inch/Metric Toggle
At any time you may switch between standard and metric measurements by pressing and holding SET for ten seconds.
19
Figure 21
4.Press the sanding belt START button and the conveyor table START button on the control panel, and feed the workpiece through the machine.
5.Make further passes as needed, raising the table each time using the UPS button.
11.0Operation
Before operating the sander, make sure that:
1.The dust collection system is turned on.
2.Sanding belt tracking and oscillation are working properly.
3.Conveyor belt tracking is correct.
4.All screws and handles are tightened securely.
5.Working air pressure is correct. (Normal working pressure is 75 to 80 PSI.) Do not operate sander until normal pressure is reached.
6.Thickness is correctly input into the LED unit.
7.Feed rate is correctly set.
8.Workpiece is free of nails, knots and other obstructions.
11.1Braking System
The sander will not start or will halt operations if any of the following occur:
•No air supply to the machine.
•No sanding belt installed.
•Improper belt tension.
•Sanding belt runs out of track.
•The emergency stop button on the control panel is pressed.
•The emergency stop plate on the conveyor table is pushed.