https://www.arepairmanual.com/downloads/john-deere-gasoline-trimmers-brush-cutters-21c-21s-25s-30s-38b-tm1494-technical-manual/john-deere-gasoline-trimmers-brush-cutters-21c-21s-25s-30s-38b-tm1494-technical-manual-en-pdf/
John Deere Gasoline Trimmers Brush Cutters 21c 21s 25s 30s 38b tm1494 Technical Manual EN PDF | A...