This comprehensive workshop manual provides detailed instructions and specifications for maintaining and servicing your New Holland 70 Series tractor, specifically models 8670, 8770, 8870, and 8970. The manual covers a wide range of topics, including: * **General Information:** This section provides an overview of the tractor, including its specifications, safety precautions, and general operating instructions. * **Engine:** Learn about the engine's construction, operation, maintenance schedules, troubleshooting procedures, and repair techniques. * **Transmission:** This section details the transmission's workings, including gear selection, operation, maintenance, and potential issues. * **Drive Lines:** Understand the various drive lines, including their components, function, inspection, and adjustment procedures. * **Front Mechanical Drive:** This section covers the front mechanical drive system, encompassing its components, operation, maintenance, and troubleshooting. * **Rear Drive Axle:** Learn about the construction, operation, maintenance, and potential problems related to the rear drive axle. * **Power Take Off (PTO):** This section focuses on the PTO, including its different types, operation, maintenance, and repair. * **Brakes and Controls:** Explore the braking system, its components, operation, adjustment, and troubleshooting methods. * **Hydraulic Systems:** Learn about the different hydraulic systems, their components, maintenance, and troubleshooting. * **Steering:** Understand the steering system, including its components, operation, maintenance, and troubleshooting. * **Two Wheel Drive Axle and Wheels (2WD):** This section covers the construction, operation, maintenance, and potential issues related to the 2WD axle and wheels. * **Climate Control:** Learn about the climate control system, including its operation, maintenance, and troubleshooting. * **Electrical Systems:** This section details the electrical system, its components, wiring diagrams, troubleshooting, and repair procedures. * **Platform, Cab, and Bodywork:** This section covers the tractor's platform, cab, and bodywork, including their assembly, maintenance, and repair. This manual is designed to be easy to use, with clear and concise language, detailed illustrations, exploded diagrams, drawings, and photos that guide you step-by-step through service and repair procedures. It provides the technical specifications and instructions you need to confidently maintain and repair your New Holland 70 Series tractor.

The New Holland 8670, 8770, 8870, and 8970 tractors represent a powerful and versatile line of agricultural workhorses, developed during a period of significant industry consolidation. These models, produced under the New Holland banner, emerged from the legacy of Ford New Holland, a company formed through the acquisition of New Holland by Ford Tractor Operations in 1985. This period saw the integration of New Holland's innovative agricultural machinery, including its renowned automatic hay balers, with Ford's strong tractor presence. However, this partnership was short-lived. In 1990, Ford sold a majority stake in its farm machinery operations to FIAT, leading to the gradual phasing out of the "Ford" name and the emergence of dual branding strategies. The New Holland name continued in established markets, while FIAT took hold in others. This complex evolution culminated in the 1999 merger of Case IH and FIAT New Holland, forming CNH Global (Case New Holland), which continues to manufacture tractors under the New Holland brand today. The New Holland 8670, 8770, 8870, and 8970 tractors represent a key era in the company's history, reflecting a period of significant technological advancement and market adaptation. They were designed to meet the demanding needs of modern agriculture, offering powerful engines, robust transmissions, and advanced hydraulic systems. These models were intended for a wide range of tasks, including plowing, cultivating, harvesting, and transporting crops. Their robust construction and comprehensive feature set were designed to provide farmers with the reliability and efficiency needed to maximize productivity. The comprehensive workshop manual for these tractors provides invaluable insights into their intricate workings, enabling owners and technicians to effectively maintain and repair these powerful machines.