This is the complete 2500+ page service manual for the Case IH/ International Harvester 1620, 1640, 1660, and 1680 series combines. Due to the huge popularity of the 1600 series this service manual is almost impossible to find anywhere other than here.
These service manuals were mostly only used for Case IH mechanics and its no wonder why. With over 1000 pictures, tables, and diagrams this manual can tell you how to fix any problem you are having with your combine.
Covers All Years and Serial Numbers - This manual is guaranteed to be complete and to cover your machine's model year and serial number.