General Information

The demanding requirements of MOOG D688Z4705B valve applications require specialized service capabilities. We deliver professional solutions.

The NC Servo Tech Advantage

Quality standards guide everything we do. From initial diagnosis through final testing, our procedures ensure dependable results you can trust.

Service Procedure

We take the valve apart, clean everything, check all the parts, replace what’s bad, put it back together, and test it.

  • Careful intake inspection and documentation
  • Complete teardown with cleaning and evaluation
  • Replacement of worn or damaged components
  • careful reassembly with proper torque values
  • Functional testing and verification against specs

Ready When You Are

This unit is not currently listed in stock. Contact us to review repair timelines, exchange possibilities, or alternate solutions tailored to your downtime requirements.

Frequently Asked Questions

Schedule Your MOOG D688Z4705B Service Today

Trust NC Servo Technology for top-tier service. Contact us today to schedule your repair and get your unit refurbished.