How We Repair Your Unit

Our repair process for the MOOG 78-101A begins with teardown and mineral bath and ultrasonic cleaning to assess all components.

Valve Overview

We’ve serviced hundreds of MOOG 78-101A units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.

Frequently Asked Questions

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

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

If the main housing or board is intact, repair is usually the better option. We can restore most units to working condition with tested parts.

Warranty coverage of our standard 1-year parts and labor warranty is included with every repair we complete.

Turnaround time varies by model and condition. Contact us for a timeline specific to your unit.

About Our Shop

NC Servo operates independently, so we’re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.

17,000+ valves in stock including MOOG 78-101A exchange units

Repair Process

Each valve goes through teardown to expose wear and buildup. After mineral bath cleaning, we replace damaged parts and reassemble the unit to spec.

  • 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.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.

Diagnostic Testing

NC Servo 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 functional testing verifies proper functionality.

MOOG 78-101A Specifications

Every MOOG 78-101A we service is tested under real-world conditions. Our diagnostics verify performance against published specifications. Specification sheets and Performance data are available for purchase upon request.

Additional MOOG 78-101A Services

Beyond standard maintenance, we offer specialized overhauls for your MOOG 78-101A unit. Our teardown process includes internal inspection and seal replacement, using only replacement replacement components.

Lead Times and Support

As a dedicated source for MOOG 78-101A services, NC Servo targets quick resolution with typical lead times of 1 to 2 weeks. Benefit from our direct access to our technicians to keep your systems running smoothly.

In-House Inventory for MOOG 78-101A

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

Maintenance Tips

  • Document all maintenance activities to track performance trends over time.
  • Inspect MOOG 78-101A seals regularly to prevent leaks and maintain performance.
  • Perform fluid analysis to detect contamination early and prevent system damage.

Request a Quote for Your MOOG 78-101A Maintenance

Request pricing, availability, and turnaround for your MOOG 78-101A. NC Servo provides independent repair with a 1-year warranty. Contact us to start your repair.

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NC Servo 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.