Grizzly G9983 instruction manual Platen Depth Cleaning Pads, Three basic platen positions

Platen Depth Cleaning Pads

The platen position allows for 3 types of opera- tion. These different positions can be adjusted by rotating the knob shown in Figure 17. Notice that the knob has a scale on it. By keeping track of how many revolutions you have rotated the knob, you can determine how far you have moved the platen.

Figure 17. The scale on this knob tells you how

far you have moved the platen.

The three basic platen positions:

Platen Up Ñ The platen is raised above the level of the sanding rollers. This position allows the front roller to remove large amounts of material quickly, but leaves a rough finish. The best belt grit for this position is #100 or coarser.

Platen Even Ñ The platen is set even with the sanding rollers. The rollers work together with the platen to produce intermediate/final finishing. The best belt grit for this position is #100-#180.

Platen Down Ñ The platen is lowered below the sanding rollers. The majority of the work is accomplished by the platen pressure on the workpiece. The result is a smooth, flat finish. The best belt grit for this position is #180 or finer. Avoid Lowering the platen more than .2MM below the sanding belt rollers—this is the equivalent to 1 full turn of the knob.

Cleaning Pads (one is shown in Figure 18) are the perfect way to enhance your wide-belt sand- ing operations. Simply set the conveyor table to height and feed the pad through to ÒunloadÓ a used sanding belt. This cleaning will greatly increase the lifespan of your sanding belts. Since each pad can be used dozens of times, you will actually save money in the long run. Check with the current Grizzly catalog for more details.

Figure 18. Sanding belt cleaning pad.

-22- G9983 15" Open-End Wide-Belt Sander