Overview

NC Servo Tech provides repair and reconditioning for the Moog D661-4501. With our in-house tools and consistent methods, we return each unit to reliable performance.

What Sets Us Apart

We’ve built our shop around one thing: industrial repair excellence. With decades of experience and deep product knowledge, we deliver consistent results, one unit at a time.

Frequently Asked Questions

Restoration Workflow

We rebuild every valve from the inside out, starting with detailed cleaning and inspection, followed by new parts installation, careful reassembly, and rigorous bench testing.

• Meticulous Cleaning: All parts undergo an ultrasonic cleaning process to remove contaminants before inspection.
• Final Performance Verification: After reassembly, each valve undergoes bench-testing to ensure it meets or exceeds OEM performance specifications.
• In-House Parts Sourcing: Many repairs use reliable components sourced from our extensive inventory of existing units.
• Rigorous Testing: The reassembled unit undergoes rigorous leak and pressure testing to verify it performs to specification.

Troubleshooting & Verification

We carry out complete diagnostics, including flow gain, leakage, pressure shift, and frequency testing, on every valve. Our test facility supports detailed performance logging and comprehensive report generation for quality assurance. Our pre-shipment testing ensures consistent performance.

Maintenance Tips

• Perform comprehensive fluid analysis to detect contamination early and prevent system damage.
• Check valve alignment carefully to prevent undue stress on internal components.
• Replace inline filters per maintenance schedules.