About This Unit

At NC Servo Technology, our shop is equipped to service the MOOG NC SERVO 771-178B-NC. We use a consistent process to restore each unit to working condition.

Independent Repair Facility

Unlike OEM shops, we use our own inventory to handle most rebuilds. That cuts down on lead time and gets your unit back faster.

17,000+ valves in stock including MOOG NC SERVO 771-178B-NC exchange units

Frequently Asked Questions

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

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

Yes, a 12-month warranty on parts and labor is standard on all repairs. Details are provided with your service report.

Yes. Our technicians can often identify units based on photos, dimensions, or manufacturer markings. Send a photo before shipping to speed up intake.

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

How We Rebuild This Valve

The process begins with disassembly and visual evaluation. We then clean, replace worn pieces, and reassemble the valve to restore its function.

  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.

Hydraulic Testing Process

NC Servo Technology operates over a dozen dedicated flow 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 spec-level operation.

Additional MOOG NC SERVO 771-178B-NC Services

Beyond standard refurbishment, we offer specialized reconditioning for your MOOG NC SERVO 771-178B-NC unit. Our overhaul process includes internal inspection and seal replacement, using only new replacement components.

Lead Times and Support

As a focused repair facility for MOOG NC SERVO 771-178B-NC services, NC Servo Technology targets quick resolution with typical lead times of 1 to 2 weeks. Benefit from our dedicated support team to keep your systems running smoothly.

Stock Availability

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.

Product Data Available

For transparent insights into your MOOG NC SERVO 771-178B-NC, we can provide access to reports and repair records. This transparency offers you peace of mind and aids in long-term maintenance planning.

Maintenance Tips

  • Keep hydraulic fluid clean and at proper levels for consistent valve operation.
  • Perform fluid analysis to detect contamination early and prevent system damage.
  • Document all maintenance activities to track performance trends over time.

Let Us Repair Your MOOG NC SERVO 771-178B-NC

Request pricing, availability, and turnaround for your MOOG NC SERVO 771-178B-NC. 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.