Product Installation Instructions Click on a below Barcus-Berry Model to view a PDF file of that particular product manual: 1320 1455-3, 1457, 1457XL 1460, 1460-N12 3100 3110 3125, 3150 4000 6100 C5200 DISQIS, DISQOS PREAMP for 3000 and 4000 MAPLEBAR