Method and apparatus for adjusting the gap width of a cone-type crusher

A method for adjusting the gap width between a rotatable crusher cone and a crusher housing, comprising the steps of:

• (a) determining a reference position of the crusher cone relative to the crusher housing;
• (b) storing a first quantity representative of said reference position;
• (c) moving said crusher cone to said reference position;
• (d) moving said crusher cone from said reference position toward said crusher housing until a limit position is reached, stopping the movement of said crusher cone toward said crusher housing when the limit position is reached, and measuring the distance between said reference position and said limit position;
• (e) storing a second quantity representative of said distance;
• (f) repeating steps (c)-(e) a plurality of times while separately storing each of the second quantities;
• (g) obtaining an average of the values of said second quantities, and storing a new reference position which is representative of said average;
• (h) determining an operating position of said cone crusher based on said new reference position;
• (i) moving said crusher cone to said new operating position;
• and
• (j) performing steps (c)-(i) while continuously rotating said crusher cone.