This comprehensive Operator's Manual is designed for the New Holland Round Balers, models 648, 658, 678, and 688. It provides a detailed guide to the safe and efficient operation, lubrication, maintenance, and troubleshooting of these agricultural machines. The manual is organized into seven main sections, each covering a specific aspect of the baler's functionality.

The first section, **SAFETY,** emphasizes the importance of safe operation, outlining crucial safety precautions and procedures. The **GENERAL INFORMATION** section provides an overview of the baler, its components, and operating principles. The **OPERATION** section delves into the step-by-step process of using the baler, including preparations, baling procedures, and proper handling.

The **LUBRICATION** section outlines the required lubrication points, intervals, and appropriate lubricants, ensuring optimal performance and longevity. **MAINTENANCE** provides detailed instructions for routine maintenance tasks, helping owners to keep their balers in peak condition. The **TROUBLESHOOTING** section equips users with a comprehensive guide to identifying and addressing common problems, facilitating quick and effective solutions.

Finally, the **OPTIONAL EQUIPMENT** section details available add-ons and modifications, allowing owners to customize their balers to specific needs. A **SPECIFICATIONS** section provides detailed technical specifications, allowing users to understand the baler's capabilities. The manual concludes with an **INDEX** for easy reference and a **DELIVERY REPORT** for record-keeping.