About This Unit

NC Servo Technology provides repair and reconditioning for the MOOG D662-338NC. With in-house tooling and stocked parts, we keep turnaround times short.

Independent Repair Facility

Our technicians work on industrial components like the MOOG D662-338NC daily. That hands-on repetition builds the kind of experience that speeds up diagnosis and reduces rework.

17,000+ valves in stock including MOOG D662-338NC exchange units

Frequently Asked Questions

Part of our intake includes troubleshooting to determine the failure point. We report findings before proceeding.

All repairs come with a one-year warranty. Contact us for specifics on your unit.

You can send it as-is. We handle all cleaning and preparation as part of our standard process.

We confirm next steps with you if a unit can’t be rebuilt. No work proceeds without your approval.

Yes, rush service is available for an additional fee. Let us know your deadline when you submit your request.

How We Rebuild This Valve

The repair process for the MOOG D662-338NC includes disassembly, diagnostic review, and replacement of failed seals, spools, or other elements. Final assembly includes leak and function testing.

  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.

Testing and Bench Verification

With our 13-stand test facility and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our performance testing verifies consistent performance.

Where the MOOG D662-338NC Is Used

Our expert repair services for the MOOG D662-338NC are trusted across various sectors including Oil & Gas, Paper & Pulp, and Construction. We understand the unique demands of valves in these environments.

Performance Data

Every MOOG D662-338NC we service is tested under operating environments. Our diagnostics verify performance against published specifications. Technical diagrams and Cycle life data are available for purchase upon request.

Parts and Inventory

With an extensive stock of 17,000+ valves, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Maintenance Tips

  • Keep hydraulic fluid clean and at proper levels for consistent valve operation.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Check system pressure regularly to verify it stays within the MOOG D662-338NC rated operating range.

Request a Quote for Your MOOG D662-338NC Maintenance

Request pricing, availability, and turnaround for your MOOG D662-338NC. NC Servo Technology provides warrantied repair with a 1-year warranty. Contact us to request your repair.

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NC Servo Technology is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by MOOG or any original equipment manufacturer (OEM), nor do we claim to be a MOOG service center. All brand names, trademarks, model numbers, and part numbers referenced on this page are the property of their respective owners and are used solely for identification and compatibility purposes.