In this video senior service engineer with Eurotech Elite Shane Jacobson provides a technical walk through of a CNC machine's electrical and mechanical systems, focusing on troubleshooting and maintenance. Shane discusses various components, including the SB1 drive, QF226 circuit, AC unit, and live tooling sensor (AP80) that monitors orientation and spindle speed. Common issues like "tool not found" errors, often due to faulty relays on the AP1 or AP2 boards, are addressed, with recent upgrades to solid-state relays noted.

The discussion covers relay configurations, fused circuits, hydraulic systems (including accumulator bladders and pressure sensors), lubrication systems with metering valves, and pneumatic systems for spindle flanges and ejectors. Shane also highlights recent machine upgrades, such as prismatic rails and upcoming integral spindle motors, and provides insights into adjusting hydraulic valves to reduce turret clamping noise and performing maintenance tasks like seal replacements and filter changes.