PDF SERIES I MILLING MACHINES Massachusetts Institute of Technology
Power feed worm gear may be engaged when spindle is rotating, however, it should be engaged gently to avoid damage to worm gear. The worm gear may be disengaged at any time. do not use power feed at speeds above 3000 RPM. 26 M450 Figure Quill Feed Handle M TP5294 Figure Power Feed Transmission Engagement Crank N TP5295