Elevator Forum ForumsWhat’s NewRecent PostsMembers Forums General Discussion Technical Questions Otis 21UGO Notifications Clear all Otis 21UGO Technical Questions Last Post by Anonymous 1 week ago 1 Posts 1 Users 0 Reactions 1,044 Views RSS sccjr (@sccjr) Joined: 1 second ago Posts: 0 Topic starter 02/04/2015 9:06 am [#13792] Does anybody have an adjustor's book or a sequence of operation for an Otis 21UGO. This is a pie plate job w/ a dispatcher rack for I/O'S and timer boards. Quote Share: