1. The JOHN DEERE 778 Rotary Harvesting Unit TM411119 is a reliable and efficient tool for harvesting crops. This online PDF manual provides comprehensive instructions and guidance on how to operate and maintain the unit effectively. With its advanced features and durable construction, this harvesting unit ensures optimal performance and productivity in the field. Whether you are a professional farmer or a hobbyist, this manual will assist you in maximizing the potential of your JOHN DEERE 778 Rotary Harvesting Unit.