This manual pertains to the Wacker Neuson 12002 RD, a model manufactured in 2003. Designed for demanding applications, this vehicle embodies robust engineering and reliable performance, making it a dependable choice for various operational needs. Its construction prioritizes durability and efficiency, ensuring it meets the rigorous standards expected in its intended field. The purpose of this comprehensive Operator/Service/Repair Manual is to provide detailed information for the maintenance, operation, and repair of the Wacker Neuson 12002 RD. It covers essential areas including general maintenance, periodic lubrication, recommended oils and specifications, service instructions, and tightening torques. Furthermore, the manual details operational aspects such as safety, pre-operation checks, control devices, working methods, and attachment usage. System-specific information for electrical, brake, suspension, steering, heating, cooling, chassis, undercarriage, and drive axle systems is included, alongside troubleshooting guidance, technical data, specifications, working ranges, lifting capacities, and bucket selection. This resource is designed to assist owners, mechanics, and technicians in effectively managing and servicing the vehicle.