Woodstock W1709 instruction manual Adjustments, General Information, Photo-Electric Eye

ADJUSTMENTS

General Information

The adjustments in this section have been factory set and generally do not need to be performed when you first receive your sander. However, before operating your sander become familiar with these adjustments, as they will help you achieve the sanding results you want.

KEEP loose clothing and long hair secured and away from moving parts.

Photo-Electric Eye

The photo-electric eye senses when the belt oscillates to the right and blocks the beam to and from the reflector. See Figures 12 and 13. As soon as the sanding belt obstructs the beam, a piston changes the direction of belt movement to the left. Should the adjustment of the photo- electric eye become skewed, you can readjust the eye.

To adjust the photo-electric eye, do these steps:

1.TURN-OFF and LOCK the master power switch so no power can go to your sander, but keep the air pressure going into the machine.

2.Make sure the air regulator is adjusted so that system air pressure is 57 PSI.

3.Open both upper access doors on the sander.

4.Loosen the sanding belt tension and slide the belt so the belt is positioned in the middle of the rollers.

5.Apply power to the sander and push the emergency stop button in so the sander cannot start.

6.Loosen the photo-electric eye mounting bolt. See Figure 12.

7.Position the mount so the photo-electric- eye beam is barely obstructed by the edge of the belt, pointing at the reflector, and you hear the electric solenoid click and the piston pushes the pushrod outward. See

Figures 12 and 13.

8.Tighten the mounting bolt.

9.Start the sander, and check for correct belt positioning and oscillation.

10.Repeat steps 1 through 9 until the photo-

electric eye positioning is correct. -13-

Photo-Electric

Eye

Mounting

Bolt

Photo-Electric

Eye Mount

Figure 12. Photo-electric-eye assembly.

Reflector

Figure 13. Photo-electric-eye reflector.

ADJUSTMENTS