MTS Series 252 Servovalves - Manual (Page 38)

Series 252 Servovalve Product Information 38
Adjust the Mechanical Null
Maintenance
G. See your controller manual to complete the valve balance procedure.
4. Set the magnetic null adjustment (Newer Series 252.3X servovalves).
A. Using a flat screwdriver, slowly rotate the magnetic null adjustment on
the top of the servovalve while monitoring the command and feedback
signals until the command equals feedback.
B. See your controller manual to complete the valve balance procedure.