Pump, Motor & Valve Repairs

When your hydraulic system loses power, pressure, or control, the problem often lies with its core components: the pump, motor, or valves. At Action Hydraulics, we specialize in complete repair and rebuild services for these vital components — restoring performance, preventing failure, and extending equipment life.

We service a wide range of hydraulic equipment from industry-leading manufacturers, including: Rexroth, Danfoss/Eaton, Poclain, Kawasaki, Voith, Parker, and more.

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Pump & Motor Repairs

Whether you're dealing with a pressure drop, fluid contamination, or mechanical wear, our team can diagnose and restore hydraulic pumps and motors of all types — including gear, vane, and piston designs.

Our pump and motor repair services include:

• Precision lapping of rotating groups using our Lapmaster-equipped facility
• Drive shaft repair and replacement
• Rebushing of obsolete pump housings to restore servo support and extend service life
• Replacement of worn components including bearings, and bushings
• In-house verification of tolerances and surface finishes to ensure OEM-level precision
• Full dynamic bench testing before final delivery
• We repair both open-loop and closed-loop systems with fast turnaround and reliable results.

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Valve Repair & Refurbishment

Hydraulic valves control flow, pressure, and direction — and even small internal wear can cause major performance issues. We offer complete repair services for directional, pressure control, flow control, servo valves, center post swivels.

Valve repair capabilities include:

• Full disassembly, ultrasonic cleaning, and failure analysis
• Honing of valve bodies to restore internal geometry and smooth finishes
• Grinding and chrome-plating of valve spools for precise fit and long life
• Repair or replacement of springs, seats, seals, and pilots
• Performance testing to verify flow, pressure response, and leak-tight sealing
• We service valves from standard mobile hydraulics to precision industrial applications.