Key Details

We’ve serviced hundreds of MOOG 77-513A units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.

Teardown and Rebuild Steps

Each MOOG 77-513A undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

Frequently Asked Questions

We give you a straight assessment after inspection. If repair doesn’t make sense, we’ll let you know and discuss alternatives.

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

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

Yes. Send us photos of the unit from multiple angles. Our team has serviced thousands of models and can often ID them visually.

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

Experience and Warranty

NC Servo Tech specializes in both valves and electronic controls, which lets us operate without the delays of OEM service centers.

Disassembly and Rebuild Procedure

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

  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • 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.

Hydraulic Testing Process

NC Servo Tech operates over a dozen dedicated flow test stands, including setups for proportional and servo valves. Every valve goes through performance and leak testing using industry-standard fluids including MIL-5606 and Skydrol. Our functional testing verifies proper functionality.

Industries We Serve

Our trusted repair services for the MOOG 77-513A are trusted across various sectors including Defense, Automotive, and Plastics & Injection Molding. We understand the unique demands of valves in these environments.

Additional MOOG 77-513A Services

Beyond standard sales, we offer specialized overhauls for your MOOG 77-513A unit. Our teardown process includes flow verification and mineral bath cleaning, using only new replacement components.

Data Sheets & Reports

For detailed insights into your MOOG 77-513A, we can provide access to reports and service logs. This transparency offers you record-keeping and aids in long-term maintenance planning.

Maintenance Tips

  • Schedule preventive maintenance intervals based on duty cycle, not just calendar time.
  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Perform fluid analysis to detect contamination early and prevent system damage.

Request a Quote for Your MOOG 77-513A Maintenance

Request pricing, availability, and turnaround for your MOOG 77-513A. NC Servo Tech provides independent repair with a 1-year warranty. Contact us to set up 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.