S49 is an upgrade version of normal 3D rotary vibrating screen, adopt the disc intelligent adjustment device. TOP FORCE WHEEL ADJUSTMENT To increase horizontal vibrating force, lift and move both top fan weights closer together the same number of slots from center notch or “0” position.  To decrease horizontal vibrating force, lift and move both top fan weights farther away from center notch or “0” position the same number of slots. BOTTOM FORCE WHEEL ADJUSTMENT  To increase vertical vibrating force, lift and move both bottom fan weights closer together the same number of slots from selected lead angle. To decrease vertical vibrating force, lift and move both bottom fan weights farther away from selected lead angle the same number of slots.  To adjust lead angle, lift and move both bottom fan weights to the right or to the left (maintaining equal spacing or number of slots) of the selected lead angle. Note Both weight plates should be equally spaced.