This document provides detailed service and repair information for the CX27B Tier 3 compact hydraulic excavator, covering diagnostics, troubleshooting, maintenance procedures, and component repair. It includes technical data, system layouts, hydraulic and electrical information, disassembly and assembly steps, and specifications referenced by document number S5PD0003E01. Designed for technicians and equipment owners needing accurate repair and service procedures to ensure reliable operation and long-term performance.