This manual covers the Caterpillar 950B Wheel Loader, a robust machine designed for demanding work environments. Known for its engineering quality and reliability, the 950B is built to handle a variety of material handling tasks. Its articulated frame steering and powershift transmission provide excellent maneuverability and operational efficiency. With an approximate operating weight between 10,000 and 12,000 kg, this wheel loader is a dependable asset for construction, mining, and industrial applications. The purpose of this English-language Service Repair Manual and Service Catalog is to provide comprehensive guidance for the maintenance, repair, and rebuilding of the Caterpillar 950B Wheel Loader. It includes detailed procedures for diagnostics, electrical systems, troubleshooting, and component overhauls, supported by detailed illustrations, drawings, and photos. The manual's numbered steps and integrated troubleshooting with wiring diagrams are designed to assist owners, mechanics, and technicians in effectively maintaining and repairing the equipment, ensuring its optimal performance and longevity.