SKF has refreshed its TFO (Trouble-Free Operation) wheel end maintenance guide (457975) to provide the latest wheel end maintenance practices, detailed instructional materials and exemplary images for achieving successful wheel end maintenance. This updated technical resource covers the SKF heavy duty product line and offers general guidelines and warranties, detailed graphics and instructional materials for disassembly/re-assembly and failure analysis of bearings, hubcaps and seals. Included is a new section with popular interchanges for tapered bearings, half stand bearings, hubcaps and Scotseal wheel seals. Other new features include QR codes with links to instructional YouTube videos for installing the Scotseal PlusXL and Scotseal Classic, and information about SKF technical training trucks, which deliver hands-on training.