Triumph TR PDF Downloads - Triumph TR4A IRS Rebuild and Triumph TR 2,3,4,4a,5,6 Owners manual, Parts catalogues, wiring diagrams. I'll keep adding resources as I find them and put them here for you to downloade are other pages on this site with downloads but they are associated more with the page content. TRIUMPH TR4 WORKSHOP MANUAL Pdf Download. wwwalslib›Brands›TRIUMPH Manuals›Automobile›TR4View and Download TRIUMPH TR4 workshop manual online. TRIUMPH TR4 MODELS. TR4 Automobile pdf manual download.