Independent third-party component-level repair of Moog servo valves used on Husky injection molding machines: Hylectric hybrid, HyPET preform, HyCAP / HyPAC packaging, and legacy Q / LX / Index / QuadLoc platforms. D661, D662, G761, and 760-series bodies come off these machines for rebuild.
Each unit is opened, inspected, and rebuilt at the component level. Failed parts come from inventory or off donor units. Bench verification before ship.
N210
Pilot stage rebuild
Torque motor pilot stages, nozzle flapper, and pilot trim cleaned and aligned against documented procedures on Moog D661, D662, G761, and 760-series valves.
N220
Spool & sleeve service
Spool wear, contamination scoring, and lap restoration on high-speed PET-grade valve bodies.
N230
Coil & feedback work
Burned coil rebuild, feedback wire repair, and LVDT verification on closed-loop servo valve bodies.
N240
Bench testing
Hagenbusch and older-style hydraulic stands. Hysteresis, null shift, and step response data available for purchase.
N250
Donor parts service
Aftermarket and donor parts for legacy Husky valves on older platforms.
N260
Repair scope
Bench-level component work on the valve hardware. PLC programming, machine parameter setup, and integration stay with the customer or Husky.
Spool wear, null drift, and contaminated pilot stages on Moog D661, D662, G761, and 760-series servo bodies.
Hysteresis & dead-band
Servo valve hysteresis growth, torque-motor degradation, or spool binding on aged Moog bodies.
Response lag
Servo valve response lag and reduced flow gain after years of high-cycle service.
Coil & feedback
Burned drive coils, feedback wire wear, and LVDT signal drift on closed-loop bodies.
N500 Workflow
From part number to ship-back
Same four-step path through the shop whether the unit came off a HyPET preform line or a Hylectric hybrid.
N510
Get in touch
Call or email with the part number, machine model, and a photo of the nameplate if it helps.
N520
Bench review
Tech opens the unit, inspects pilot and spool, and runs it on the hydraulic stand to confirm what failed.
N530
Cost & approval
We call back with the cost and a rough turnaround. Nothing is started without your sign-off.
N540
Repair, test, ship
Failed components replaced from inventory or off donors, the valve verified under pressure, and shipped back.
N600 Common questions
Common questions about Husky valve repair
Application-specific questions. For brand-specific FAQs, see the dedicated brand page above.
What servo valve brands come off Husky machines?
Husky Hylectric, HyPET, HyCAP, and legacy Q / LX / Index machines run Moog servo valves: D661, D662, G761, and 760 series. All come off the bench for rebuild.
Can you repair valves on PET preform machines?
Yes. HyPET HPP, HPP5, HPP5e, and later PET platforms run Moog servo valves. Spool wear and torque-motor coil aging are common; both come through the bench routinely.
What about legacy Q-Series and LX machines?
Yes. Older Husky platforms including Q-Series, LX, Index, and QuadLoc run Moog servo or proportional valves. The valves come through the bench for full rebuild.
How long does a repair usually take?
Lead time varies job to job, partly because parts are often pulled from donor boards. Give us a call with the part number and the situation.
Do you provide Husky machine programming or software configuration?
No. NC Servo handles bench-level component repair on the valve hardware only. PLC programming, machine parameter setup, and integration stay with the customer or Husky.
What if the valve is beyond economic repair?
If the valve is not fixable, we will let you know and help source a replacement.
What is the warranty?
One year on parts and workmanship for repairs and rebuilt units. Standard exclusions apply for contamination, improper installation, and out-of-spec operation.
N700 More from NC Servo
Related repair coverage
Other injection-molding pages and the brand pages most-tied to Husky hydraulics.
Give us a call or send a part number with the machine model and the symptom. We'll check the donor pool, suggest a rebuilt match if we have one, and walk through repair or cross-brand options if we don't.
