How We Repair Your Unit

Each MOOG D659Exxx undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

Why Repair With NC Servo

We’ve built our shop around one thing: industrial repair. With decades of hands-on experience and deep product knowledge, we deliver consistent results.

Frequently Asked Questions

Send the unit in whatever condition it’s in. We clean everything during teardown before inspection begins.

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

We regularly work on units with missing labels. Send us a few images and any visible part numbers, and we can usually match it.

You’ll hear from us either way. If it’s not repairable, we’ll return the unit and provide our findings.

We recommend sending pictures, especially if the model number is unclear or there is visible damage.

Repair Process

Our team disassembles each valve to assess internal wear. After ultrasonic cleaning, we install replacements and reassemble and verify operation.

  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • 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.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.

Leak and Performance Testing

We carry out full diagnostics on every valve, including flow gain, leakage, pressure shift, and frequency testing. Our test facility supports performance logging and report generation. Our performance testing verifies consistent performance.

Common Applications

Our professional repair services for the MOOG D659Exxx are trusted across various sectors including Aerospace, Power Generation, and Manufacturing. We understand the unique demands of valves in these environments.

Turnaround and Shipping

As a focused repair facility for MOOG D659Exxx services, NC Servo Technology targets quick resolution with typical lead times of 2 to 3 weeks. Benefit from our responsive technical support to keep your systems running smoothly.

Parts and Inventory

With more than 17,000 valve units in inventory, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Maintenance Tips

  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Check system pressure regularly to verify it stays within the MOOG D659Exxx rated operating range.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Let Us Repair Your MOOG D659Exxx

Request pricing, availability, and turnaround for your MOOG D659Exxx. NC Servo Technology provides hands-on repair with a 1-year warranty. Contact us to set up 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.