User Manual FRISTER & ROSSMANN Cub 4 - This User Manual - also called owner's manual or operating instructions - contains all information for the user to make full use of the product. This manual includes a description of the functions and capabilities and presents instructions as step-by-step procedures. Olympia Typewriter Font. Error codes and the Reference manual can also be included. This document contains important information to use and/or repair your appliance. Depending on the nature of the manual (use, installation, service, parts list), it provides instructions that you can't ignore.