This comprehensive manual is designed to provide you with all the information you need to operate and maintain your New Holland 648, 658, 678, and 688 round balers effectively. It covers a wide range of topics, starting with essential safety precautions to ensure your well-being while working with the machine. You'll find detailed explanations of the controls and instruments, allowing you to confidently operate the baler. Step-by-step procedures guide you through various tasks, including operating the baler and its equipment. A comprehensive maintenance schedule helps you keep your machine running smoothly by outlining regular maintenance tasks. Furthermore, the manual includes a troubleshooting section to assist you in resolving any potential issues that may arise. Finally, the specifications section provides detailed information about the technical aspects of your baler. The manual covers essential components and functions including the hitch, jack, PTO, slip clutch, drives, pickups, forming rolls, belts, bale-tension system, wrapping system, tailgate latches, options and accessories, and specifications. This manual offers a comprehensive guide to operating and maintaining your round baler, empowering you with the knowledge to maximize its performance and longevity.

The New Holland 648, 658, 678, and 688 round balers are powerful and versatile agricultural machines designed for efficient hay and forage baling. These balers are renowned for their robust construction, reliable performance, and user-friendly operation. The 648, 658, 678, and 688 models boast a range of features that cater to varying bale sizes and operating conditions, making them suitable for a wide variety of agricultural applications. The balers are equipped with a heavy-duty hitch system for secure towing, a hydraulic jack for easy transport, and a PTO (power take-off) shaft for efficient power transfer. The slip clutch provides protection against overloading and ensures smooth operation. The heart of these balers lies in their meticulously engineered drives and pickups. The drives are designed for consistent power transmission, while the pickups are optimized for efficient hay and forage gathering. The forming rolls are precisely manufactured to create uniform and tightly packed bales. The durable belts, crucial for bale formation, are known for their strength and longevity. The bale-tension system ensures consistent bale density, crucial for optimal storage and feeding. The wrapping system, available as an option, provides added protection against weather and pests. The tailgate latches are designed for secure bale ejection, minimizing the risk of damage or spillage. The balers are also compatible with a variety of options and accessories, allowing users to customize them to suit specific needs and preferences. This comprehensive manual provides a detailed understanding of the New Holland 648, 658, 678, and 688 round balers, covering operation, maintenance, troubleshooting, and specifications.