ALSEP cask assembly gearbox thermal vacuum test

Abstract

This summary deals with the results of a thermal vacuum test on the ACA gearbox assembly which was conducted during the ACA prototype test series. The purpose of the test was to verify the operation of the ACA Gearbox Assembly when subjected to a high vacuum and a higher than predicted thermal environment. The subject test was run in a manner such that a comparison between gearbox operation at ambient temperature and pressure and high vacuum and elevated temperatures could be made.