If adjustments are necessary, follow the this procedure: Spindle side-play can be minimized by adjusting the locknut located on the left side of the motor unit 1-1/2 inches behind the spindle and towards the bottom of the motor unit. While moving the feed handle up and down, tighten the lock nut until the play is minimized, but not so tight so as to restrict free movement of the spindle. The spindle should return by itself to the full up position. The drive belt tension may be adjusted by removing the top cover and then loosening the two nuts on either side of the motor pulley. Adjust the motor position and tighten the nuts so that moderate finger pressure against the belt causes it to deflect 3/16" to 1/4" (see Figure 6). Excessive belt tension may result in damage to the bearings. Note: Belt tension can also affect the generation of "noise" in the drill press. Although it does not affect drilling accuracy, it may be desirable to adjust the tension for minimum noise. The spindle has been generously oiled at the factory. You may have to periodically wipe off oil that makes its way down the spindle.