Teardown and Rebuild Steps

Our repair process for the MOOG 77-519 begins with teardown and mineral bath and ultrasonic cleaning to assess all components.

Independent Repair Facility

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

Specializing in MOOG 77-519 servo valve technology for over five decades

Frequently Asked Questions

Yes. We diagnose first, then provide a repair recommendation with our findings. No work begins without your approval.

No cleaning required. Our repair process includes disassembly and cleaning of all components.

We can often prioritize urgent jobs. Note it on your request form and we’ll let you know what’s possible.

It depends on the unit and scope of work. We provide an estimated timeline after initial evaluation.

Helpful but not required. If you can photograph the label, connectors, and overall unit, it gives our team a head start.

How We Rebuild This Valve

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

  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.

Diagnostic Testing

Each MOOG 77-519 is tested on a dedicated flow bench before it ships. We check pressure, flow, leakage, and response characteristics against published specifications. Our pre-shipment testing verifies proper functionality.

Where the MOOG 77-519 Is Used

Our expert repair services for the MOOG 77-519 are trusted across various sectors including Power Generation, Plastics & Injection Molding, and Steel & Metals. We understand the unique demands of valves in these environments.

MOOG 77-519 Specifications

Every MOOG 77-519 we service is tested under typical applications. Our diagnostics verify performance against published specifications. Specification sheets and Technical diagrams are available for purchase upon request.

Lead Times and Support

As a focused repair facility for MOOG 77-519 services, NC Servo Tech targets quick resolution with typical lead times of 1 to 3 weeks. Benefit from our responsive technical support to keep your systems running smoothly.

Maintenance Tips

  • Keep a spare MOOG 77-519 on hand to minimize downtime during unplanned failures.
  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Document all maintenance activities to track performance trends over time.

Request a Quote for Your MOOG 77-519 Maintenance

Request pricing, availability, and turnaround for your MOOG 77-519. NC Servo Tech provides experienced repair with a 1-year warranty. Contact us to start 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.