Overview

Whether the issue is age, wear, or contamination, the MOOG 73-157 can often be restored. NC Servo Tech applies the same structured approach to every rebuild.

About Our Shop

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

Specializing in MOOG 73-157 servo valve technology for over five decades

Frequently Asked Questions

Expedited options are available depending on current scheduling. Contact us to discuss your timeline.

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.

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

Yes, our standard 1-year parts and labor warranty is standard on all repairs. Details are provided with your service report.

Most repairs are completed within 1 to 3 weeks, depending on workload and parts availability.

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.

  • Teardown: Every valve is disassembled for internal inspection.
  • 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.
  • Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.

Leak and Performance Testing

NC Servo Tech operates our 13-stand test facility, 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 pre-shipment testing verifies consistent performance.

Where the MOOG 73-157 Is Used

Our reliable repair services for the MOOG 73-157 are trusted across various sectors including Construction, Defense, and Paper & Pulp. We understand the unique demands of valves in these environments.

Additional MOOG 73-157 Services

Beyond standard maintenance, we offer specialized reconditioning for your MOOG 73-157 unit. Our disassembly process includes internal inspection and spool evaluation, using only replacement replacement components.

Maintenance Tips

  • Schedule preventive maintenance intervals based on duty cycle, not just calendar time.
  • Document all maintenance activities to track performance trends over time.
  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.

Let Us Repair Your MOOG 73-157

Request pricing, availability, and turnaround for your MOOG 73-157. 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.