Inspection and Repair Process

Our process involves a teardown of your MOOG D642-515A, ultrasonic cleaning, and reassembly with quality parts to restore operation.

About This Unit

At NC Servo, our shop is equipped to service the MOOG D642-515A. We use a consistent process to restore each unit to working condition.

Frequently Asked Questions

Standard turnaround is 1-3 weeks. Rush options are available for time-sensitive situations.

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

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

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.

We confirm next steps with you if a unit can’t be rebuilt. No work proceeds without your approval.

Why Repair With NC Servo

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 D642-515A performance verification

Rebuild Steps

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.

  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • 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.

Testing and Bench Verification

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 pre-shipment testing verifies spec-level operation.

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.

Maintenance Tips

  • Flush the hydraulic system after any major repair to remove debris before reinstalling the MOOG D642-515A.
  • Check valve alignment carefully to prevent undue stress on internal components.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Request a Quote for Your MOOG D642-515A Maintenance

Request pricing, availability, and turnaround for your MOOG D642-515A. NC Servo provides independent repair with a 1-year warranty. Contact us to request 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.