
The Servo Test Box: Diagnose Smarter, Fix Faster
Stop shipping valves that aren’t broken. Our portable test box lets you diagnose hydraulic and servo systems directly at the machine—no guesswork, no unnecessary downtime.
Portable Diagnostics for Industrial Systems
The Servo Test Box is a portable diagnostic tool that lets maintenance teams test valves, OBEs, and other control components without removing them from the machine. It simulates real operating conditions so technicians can instantly determine whether a part is the problem—or not.
Don’t Replace What Isn’t Broken
In most plants, the valve is the first thing blamed. But it’s not always the problem. Our test boxes help you avoid chasing ghosts by confirming what’s actually failing—before you remove it.
Avoid shipping and repairing components that are working fine.
Get diagnostic results in minutes without disassembly or shipping delays.
The faster the root cause is identified, the faster production resumes.
Test boxes are especially valuable when troubleshooting older equipment with limited documentation.
Technicians get direct feedback from the component under operating conditions.
Ask About Our Test Boxes
Contact us today to learn about pricing and availability for our custom test solutions.

Legacy Equipment Support
Manufacturers move on. Critical equipment often cannot.
The Servo Group supports older and discontinued equipment across all service lines. If your equipment can be repaired instead of replaced, we will help you make that call with confidence.
Repair of obsolete and discontinued equipment
Aftermarket and equivalent component sourcing
Full testing to ensure reliable return to service
