June 2010 · Uptime Magazine

When dial indicators, straight edges, and taper gauges were the only tools available for doing shaft-to-shaft alignment, machines were often left in a rough alignment condition.  This happened because either too much time would need to be invested in order to obtain the required degree of precision or human error entered into the calculations. With the introduction of laser alignment tools, it has become a standard operating procedure to perform precision shaft-to-shaft alignment when machines are installed or reinstalled after a rebuild.  Before the introduction of laser alignment tools, harmful soft foot conditions were often not addressed.

Read the entire article The Expected and the Unexpected – The Ever Increasing Benefits of Modern PdM Technologies