Over a period of time, a lot of dust / oil / foreign matter get accumulated between the bowl and the vibrator base. Thus cleaning this area periodically will result in improving the performance of the vibratory bowl feeder. For this, you should remove the bowl, it might be either mounted on a single central screw, on 8 to 12 screws in the middle of the bowl or else on the sides of the bowl (by 4, 6 or 8 screws). After removing the bowl, clean the bottom surface of the bowl, which is in contact with the vibrator base with dry cotton waste and also the top surface of the vibrator base which is in contact with the bowl. Thereafter, fit the bowl again in the same way in which it was removed and start the vibrator.