This manual covers the Case 721E Wheel Loader from the E Series, featuring a Tier 3 compliant engine. Designed for demanding operational environments, this model exemplifies robust engineering and reliability. Its advanced PowerShift transmission ensures efficient power delivery and operational flexibility, making it a capable machine for various heavy-duty applications. This comprehensive English-language manual provides essential Electrical Schematics and Hydraulic Schematics for the Case 721E. It is designed for users who require detailed diagrams for understanding and troubleshooting the vehicle's systems. The schematics are zoomable, printable, and savable, offering maximum usability for technicians and owners focused on specific system diagnostics and maintenance.