CNH traces its current form to the merger of Case and New Holland in 1999, which created CNH Global, and to the 2013 combination with Fiat Industrial that formed CNH Industrial. Its agricultural and construction brands, including Case IH, New Holland and Case, have roots that reach back well into the nineteenth century.

The group is known for full-size tractors, combines, hay tools and construction machinery used on farms and job sites worldwide. Its diesel engines, developed within the wider Fiat Powertrain family, are engineered for heavy sustained work, and modern machines pair those engines with sophisticated powershift and CVT transmissions, high-capacity hydraulics and electronic control systems. Common model families such as the Case IH Magnum and New Holland T-series tractors are supported by documentation that reflects the shared engine and component architecture across the group.

Workshop manuals for CNH equipment cover the complete machine rather than the engine alone: diesel engine overhaul and fuel systems, transmissions and axles, hydraulic circuits and implement controls, electrical wiring diagrams, torque specifications, diagnostic procedures and scheduled maintenance programs for the relevant model range. Service data also extends to the emission-control systems fitted on newer machines and to the diagnostic tools used across the group's brands.

Farmers and owner-operators, agricultural contractors, independent equipment workshops and technicians who maintain Case IH, New Holland or Case machines will find factory service documentation essential for accurate repairs, correct settings and dependable operation through long working seasons. Access to the original manufacturer's procedures helps operators understand service intervals and avoid costly downtime during planting and harvest.