Grizzly G0486/G0487 owner manual Sanding Workpiece Platen Adjustment, Three basic platen positions

Sanding Workpiece Platen Adjustment

Typically, no more than 0.5mm (approx. 1⁄64") of material is removed during each pass. Attempts to remove too much material can cause jamming, wood burning, rapid sandpaper wear or tearing, poor finish, short motor life, and belt slippage.

The following is the correct sanding operating procedure:

1.Put on safety glasses, a dust mask, and your hearing protection!

2.Turn ON the dust collector.

3.On the initial pass, lower the table to approxi- mately 0.25" greater than the thickness of the workpiece.

Note: This initial pass setting reduces the chance of overloading the sander on unde- tected high points on the workpiece.

4.Raise the table 0.0625" between each suc- cessive pass until the sander begins to sand the workpiece.

NOTICE

It may be necessary to send wide stock through the sander two or three times between table height adjustments. This reduces the likelihood of burning the wood if there is a high spot.

Your sander is equipped with an adjustable felt platen and graphite slip for those extra sensitive sanding operations. The platen position allows for 3 basic types of sanding. These different posi- tions can be adjusted by rotating the height lever shown in Figure 19.

Scale and

Pointer

Height

Lever

Lock

Lever

Figure 19. Platen height controls.

The three basic platen positions:

Platen Up: 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: 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: 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 0.2 mm below the sanding belt rollers, or you will prema- turely wear the platen.

G0486/G0487 Wide Belt Sander -23-