6.Fully loosen the locking thumb wheels on both of the roller adjustment screws shown in
Figure 50.
Adjustment Screws
& Locking Thumb Wheels
Figure 50. Upper roller adjustment screws and
locking thumb wheels.
7.Back out the adjustment screws so that they are not against the belt housing.
Note: The next step is matter of trial-and- error until you attain proper belt tracking. The adjustment screws control the tilt of the upper roller to make it parallel with the lower roller, which affects the belt tracking.
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8.Make small changes to the adjustment knobs as you continue to rotate the sanding belt by hand.
9.When the sanding belt continues to track in one position on the rollers, make sure both adjustment screws are making contact with the belt housing, then re-tighten the locking thumb screws.
10.Repeat Step 4 to make sure the platen is still even with the crown of the upper roller.
11.Replace the side cover and table to the belt assembly before connecting the sander to power.
12.When first connecting the sander to power after this, turn it ON and watch the belt track- ing closely.
—If the sanding belt begins to track to one side or the other, immediately turn the machine OFF and disconnect it from power. Then, repeat this procedure until the belt tracks properly.
Model G1183/G1276 (Mfg. Since 3/10)
