Astra Coffee Machine Preventive Maintenance J. S. Pezaris, V. A. Shcherbatyuk, and D. E. Meeker Computation and Neural Systems California Institute of Technology, Pasadena, CA 91125, U.S.A. Abstract This document gives a step-by-step description of the periodic preventive maintenance necessary for the espresso machine in the Andersen Lab. Fetch PDF of paper (2.5 MB) John Pezaris, Caltech, Mail Code 216-76, Pasadena, CA 91125, john@pezaris.com, 15 January 2000.