Grizzly G0459 To adjust the pillow block bearings, Drum perpendicular to feed direction

6.Lower the table one full turn of the crank han- dle. Wait until the chain starts moving before starting to count the crank handle rotation.

7.Starting at one end, place a 0.002" feeler gauge between the sanding drum and the gauge block. (The feeler gauge should slide with moderate resistance, without forcing the drum to roll.)

8.Repeat Step 7 at the other end of the drum.

—If the difference between the two sides is 0.002" or less, skip to the subsection that covers how to adjust the sanding drum perpendicular to the feed direction on this page.

—If the difference between the two sides is more than 0.002", then one side must be adjusted to within 0.002" of the other (with the ultimate goal of making them dead even). Continue to the next step.

To adjust the pillow block bearings:

1.Loosen the lock nuts (see Figure 29) on one of the pillow block bearings that requires adjustment.

2.Rotate the setscrews 1⁄8 of a turn clockwise to raise the pillow block bearings (see Figure 29).

Note: Turn all setscrew sets an equal amount.

3.Tighten the lock nuts and recheck the align- ment using the gauge blocks, repeating Steps 1–8from the previous subsection. Tightening the lock nuts will pull the drum downward slightly. Be sure to adjust to compensate for this movement. Do not over tighten the lock nuts. The pillow block bearings can break if over tightened.

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To adjust the sanding drum perpendicular to the feed direction (Figure 31):

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Figure 31. Drum perpendicular to feed direction.

1.DISCONNECT POWER TO THE SANDER!

2.First measure the distance between the out- side of the drum and the inside of the dust scoop (Figure 32). The distances should be within 1⁄8" of each other at each end of the drum.

Brace	Sanding Drum
Dust Scoop

Figure 32. Measuring distance between drum

and dust scoop.

3.If the measurements are not within 1⁄8", the drum can be moved by loosening the lock nuts on the pillow block bearings and moving one end of the drum forward or backward as necessary in the slotted holes.

Note: After you have adjusted the drum, do not forget to tighten the lock nuts and recheck the alignment by repeating Steps 1–3.

G0459 12" Drum Sander