Our Process Steps

We specialize in the complete overhaul of your Moog D662-4770, including the replacement of all necessary gaskets and worn components.

Why Work With Us

Unlike OEM service centers, we use our own extensive inventory to handle most rebuilds. That cuts down on downtime and helps you get back up and running sooner.

Specializing in Moog D662-4770 servo valve technology for over three decades

Frequently Asked Questions

Restoration Workflow

Once a valve arrives at our facility, we tear it down completely, examine key surfaces, and replace worn or damaged parts using reliable components from our extensive inventory, avoiding the long delays associated with OEM suppliers.

• Rigorous Testing: The reassembled unit undergoes rigorous leak and pressure testing to verify it performs to specification.
• Meticulous Cleaning: All parts undergo an ultrasonic cleaning process to remove contaminants before inspection.
• Thorough Decontamination: Every component is put through a deep cleaning process to remove grime and buildup.
• Comprehensive Teardown: Every valve is fully disassembled for a thorough internal inspection.

How We Test This Valve

With thirteen state-of-the-art test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and additional critical parameters. On request, comprehensive performance reports and detailed graphs are available for purchase. Our performance testing ensures ensured functionality.

Maintenance Tips

• Perform fluid analysis to detect contamination early.
• Check valve alignment carefully to prevent undue stress on internal components.
• Check valve alignment to prevent undue stress.