TCB Industrial has been awarded a precision servo repair scope supporting hydro-mechanical reliability at a Northern California water and power facility. Servo mechanisms are critical to safe, stable operation of hydroelectric systems because they translate control commands into physical movement of gates, valves, or regulating components. When servo performance degrades, facilities can experience operability issues, leakage, inconsistent response, or reduced controllability during key operating conditions.
This award focuses on restoring servo functionality using disciplined mechanical practices, measurement verification, and controlled reassembly methods.
Why servo health is high consequence
Hydro-mechanical servos typically operate under demanding conditions: cyclic loading, hydraulic pressure fluctuations, environmental exposure, and strict response requirements. Over time, seals wear, clearances shift, and mechanical interfaces degrade. The result can be external leakage, reduced actuation efficiency, or poor positional accuracy.
A servo repair scope must address more than the symptom. The work must ensure the component returns to service with reliable performance characteristics and predictable behavior across the operating range.
Execution approach
TCB’s approach begins with a structured assessment of as-found condition. This includes documenting external observations, confirming interface conditions, and capturing reference measurements needed for reassembly. Where disassembly is required, the method emphasizes part protection and traceability—maintaining orientation references, controlling contamination risk, and preserving mating surfaces.
Repair activities commonly include inspection of sealing surfaces, evaluation of wear zones, replacement of degraded seals and wear elements, and restoration of mechanical interfaces to acceptable fitment tolerances. The objective is to restore both leak tightness and functional response.
Measurement, alignment, and verification
Precision work requires verification. TCB’s workflow includes measurement checks during reassembly to confirm that clearances and fits are consistent with reliable operation. Where applicable, alignment and interface verification ensure that the repaired servo integrates properly with connected control linkages and does not impose unintended side loads.
Before turnover, functional checks are performed to validate correct movement, stable response, and absence of obvious leakage or binding. The emphasis is on returning the component to service in a condition that supports dependable operation and maintainable performance.
Safety and environmental controls
Servo work often involves hydraulic fluids and the potential for residual pressure. TCB’s plan includes verified isolation, controlled depressurization, and spill prevention practices suited to sensitive water and power environments. Controlled handling and disposal practices will be implemented as required to protect surrounding work areas and waterways.
What this award represents
This project demonstrates TCB’s continuing role in hydro-mechanical maintenance where precision, cleanliness, and disciplined execution are essential. By combining careful documentation, controlled repair methods, and verification checks, TCB supports reliable operation of critical hydro systems—while keeping work practices aligned with safety and environmental expectations.
