Challenger EPC (2008) Catalog for the selection of original spare parts for the whole Challenger agricultural machinery companies. In addition, you will find detailed technical documentation for the Challenger EPC (2008) disks (service bulletins), user manuals and other useful information. - Viewer Epsilon - All known models of technology on 25.01.10 (from the official source) - Service bulletins - Operator manuals - Installation instructions (file read me)