Method for positioning a machine element having a reference point relative to a reference point provided at an abutment

A method for positioning a machine element, said method comprising the steps of:

• providing a machine element having an operative portion and defining a first reference point at said machine element;
• providing an abutment as a second reference point;
• placing said machine element relative to said abutment in a selected position such that in the selected position of said machine element the distance between said first and said second reference points defines a base distance;
• coupling said machine element to a display device having a first and a second display unit and moving said machine element relative to said second reference point for positioning said machine element;
• wherein on said first display unit a first display value for a first distance between said operative portion and said second reference point is displayed and wherein on said second display unit a second display value for a second distance r between said first reference point and said operative portion is displayed;
• and
• wherein said first display value is a predetermined finishing distance when said second display value equals the actual distance between said first reference point and said operative portion.