We’ve updated this collection to 6 separate, full size 8-1/2″x 11″ re-prints of the original CASE Dealer’s Case-O-Matic Service manuals. 210 pages in all. CASE used 2 Converters, an 11″ in the 400B 530, 600B & 630 and a 13″ Converter in the 800B 730 & 830. This Manual Collection covers both Converters, from “How It Works”, to “Troubleshooting” to Complete Overhaul. Not only of the Converter itself, but also the Pump & Valve. Also Removal & Installation from the Tractor. There is some duplication between manuals, but each manual offers something unique not found in the others, that is why we include all 6. If you have a Case-O-Matic Tractor, that you might think you will work on, you need this Manual Collection. We’ve actually had customers who completely removed the Converters, could find no internal problem, only to discover an external problem. Had they been able to read through these Manuals, & properly troubleshoot, the repair would have been simple.