Grizzly G0644 Conveyor Belt Tracking, Gib Adjustment, To adjust the conveyor belt tracking

conveyor tracking

Conveyor Belt

Tracking

If the conveyor belt tracks to either side, the belt could become damaged and have to be replaced.

Adjusting the conveyor belt tracking is a balancing process that takes patience and some trial-and- error. You must tighten the loose side adjusting bolt (the side the belt is tracking towards) to make the belt move to the middle of the rollers, then loosen that same adjusting bolt to make the con- veyor stay in position.

To adjust the conveyor belt tracking:

1.Make sure the conveyor is properly tensioned (Page 30).

1.Turn the conveyor ON and watch it track.

2.Determine which side the conveyor belt is tracking towards, and tighten the adjustment bolt (see Figure 32) on that side until the belt tracks in the opposite direction.

Note: Tracking changes may take a couple of minutes before they are noticeable.

3.When the conveyor belt is near the middle of the rollers, loosen the same adjusting bolt until the conveyor stops moving to the side and tracks straight.

—If the belt tracks too far to the other side, tighten the adjusting bolt as necessary to bring it back, then repeats Steps 2 & 3 until the tracking is correct.

-32-

gib adjustment

Gib Adjustment

The gib controls the accuracy of sanding cabinet movement along the dovetail way. A tight gib makes the movement more accurate, but harder to move, and will lead to premature wear of the ways. A loose gib makes the movements and measurements sloppy, but easier to move. The goal of gib adjustment is to remove unnecessary sloppiness without causing the dovetail way to bind.

To adjust the gib:

1.DISCONNECT THE SANDER FROM POWER!

2.Clean and lubricate the dovetail way and gears (Page 26).

3.Loosen the four gib jam nuts along the col- umn shown in Figure 34.

Gib Jam Nuts

& Set Screws

Figure 34. Gib jam nuts and set screws.

4.Adjust the gib set screws evenly until there is a slight drag on the dovetail way as you move the sanding cabinet up and down.

5.Re-tighten the gib jam nuts.

G0644 15" Open-End Wide Belt Sander