How We Repair Your Unit

Our process involves a teardown of your MOOG D664-1701E, ultrasonic cleaning, and reassembly with quality parts to restore operation.

Overview

We’ve serviced hundreds of MOOG D664-1701E units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.

Frequently Asked Questions

Send it in for evaluation. We’ll inspect it and give you a repair-vs-replace recommendation based on the actual condition of the unit.

Warranty coverage of a one-year warranty is included with every repair we complete.

Not required, but removing excess oil or loose debris before packing helps keep things clean in transit.

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

Standard turnaround is 1-3 weeks. Rush options are available for time-sensitive situations.

About Our Shop

We stock common wear parts in-house, so most rebuilds don’t require outside sourcing. Less waiting, faster turnaround.

17,000+ valves in stock including MOOG D664-1701E exchange units

Disassembly and Rebuild Procedure

We rebuild every valve from the inside out: cleaning, inspection, parts replacement, reassembly, and bench testing.

  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • 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.
  • Teardown: Every valve is disassembled for internal inspection.

Leak and Performance Testing

NC Servo Tech operates thirteen in-house test stands, including setups for proportional and servo valves. Every valve goes through performance and leak testing using a range of hydraulic fluids like Skydrol and MIL-5606. Our performance testing verifies proper functionality.

Industries We Serve

Our professional repair services for the MOOG D664-1701E are trusted across various sectors including Paper & Pulp, Aerospace, and Construction. We understand the unique demands of valves in these environments.

Performance Data

Every MOOG D664-1701E we service is tested under typical applications. Our diagnostics verify performance against published specifications. Performance data and Technical diagrams are available for purchase upon request.

Additional MOOG D664-1701E Services

Beyond standard maintenance, we offer specialized overhauls for your MOOG D664-1701E unit. Our disassembly process includes reassembly to spec and spool evaluation, using only new replacement components.

Maintenance Tips

  • Keep a spare MOOG D664-1701E on hand to minimize downtime during unplanned failures.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Document all maintenance activities to track performance trends over time.

Need Your MOOG D664-1701E Back Online?

Request pricing, availability, and turnaround for your MOOG D664-1701E. NC Servo Tech provides warrantied repair with a 1-year warranty. Contact us to schedule your repair.

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NC Servo Tech 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.