Repair Procedure

Our process involves a teardown of your MOOG 078-140D, ultrasonic cleaning, and reassembly with quality parts to restore operation.

About This Unit

NC Servo Tech provides repair and reconditioning for the MOOG 078-140D. With in-house tooling and stocked parts, we keep turnaround times short.

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.

Rush and priority service options exist. Availability depends on current workload, so contact us early.

Yes. Every unit goes through diagnostic testing and we provide an assessment before moving forward.

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

Yes. Photos of the nameplate and overall unit let us begin identification before it arrives, which speeds up the process.

Experience and Warranty

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

Factory-level test stands dedicated to MOOG 078-140D performance verification

Repair Process

Once a valve arrives, we tear it down fully, examine key surfaces, and replace worn or damaged parts using components we stock in-house, cutting out OEM lead times.

  • 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.
  • 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 Performance Testing

We carry out full diagnostics on every valve, including flow gain, leakage, pressure shift, and frequency testing. Our test facility supports performance logging and report generation. Our operational testing verifies spec-level operation.

Common Applications

Our reliable repair services for the MOOG 078-140D are trusted across various sectors including Defense, Paper & Pulp, and Plastics & Injection Molding. We understand the unique demands of valves in these environments.

Performance Data

Every MOOG 078-140D we service is tested under operating environments. Our diagnostics verify performance against published specifications. Technical diagrams and Specification sheets are available for purchase upon request.

Repair, Rebuild and Exchange Options

Beyond standard maintenance, we offer specialized overhauls for your MOOG 078-140D unit. Our disassembly process includes spool evaluation and pressure testing, using only replacement replacement components.

Maintenance Tips

  • Perform fluid analysis to detect contamination early and prevent system damage.
  • Keep a spare MOOG 078-140D on hand to minimize downtime during unplanned failures.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Schedule Your MOOG 078-140D Service Today

Request pricing, availability, and turnaround for your MOOG 078-140D. NC Servo Tech provides hands-on repair with a 1-year warranty. Contact us to set up your repair.

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.