Grizzly G0486/G0487 owner manual Pressure Rollers, To adjust the table parallelism

To adjust the table parallelism:

1.Pass the widest size board your machine will allow through the sander until the entire sur- face of the board is making contact with the sanding belt.

2.Measure the thickness of the board at vari- ous points around the edge.

3.If there is a variation of thickness, the table can be adjusted accordingly.

4.DISCONNECT THE SANDER FROM THE POWER SOURCE!

—For minor adjustment, loosen the table mounting bolts shown in Figure 32 and rotate the elevation screw flange.

—For major adjustment, mark the chain loca- tion on all sprockets, remove the chain from the sprocket to be adjusted, and turn the sprocket counterclockwise to raise the table. One quarter of a turn raises or lowers an elevation screw approximately 0.020"

Elevation

Screw Flange

Table Mounting

Bolt

Figure 32. Table mounting bolts.

NOTICE

When adjusting the left front elevation screw, make the same adjustment to the left rear elevation screw. This ensures the height from the front to the back of the table remains unchanged. Do the same when adjusting the right elevation screws.

5.Reinstall the chain onto the sprocket adjust- ed in Step 4, tighten the bolts, and test the machine.

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Pressure Rollers

To adjust the pressure rollers:

1.DISCONNECT THE SANDER FROM THE POWER SOURCE!

2.Plane a 6' long 2x4 to a uniform thickness and cut it in half. Place one board along the length of the feed belt on the right-hand side and place the other board on the left-hand side.

3.With the sanding belt tensioned (Figure 33), move the sanding rollers by hand and manu- ally raise the table until you hear the sandpa- per just contact the surface of the wood. DO NOT continue to raise the table beyond that point.

Figure 33. Belt tension knob.

4.Connect the sander to the power source and make note of the reading on the digital dis- play. Then manually lower the table 0.020" to 0.030". This is how much lower the infeed pressure roller should be set when compared to the sanding surface of the sanding roller.

5.DISCONNECT THE SANDER FROM THE POWER SOURCE!

G0486/G0487 Wide Belt Sander