MTS Series 215 Rotary Actuator - Manual (Page 64)

Series 215 Rotary Actuator Product Manual 64
Actuator Inspection
Maintenance
Actuator Inspection
When the actuator is disassembled, it is recommended that the individual parts of
the actuator be examined for excessive wear and scratches or pitting. Give
particular attention to the actuator rotor shaft and radial bearings.
Rotor shaft inspection
Examination of the actuator rotor shaft should include the following:
1. Check the rotor shaft for surface wear. If the metal surfaces are pitted,
scratched, or damaged in any way, the rotor shaft may need to be replaced or
rebuilt. Contact MTS Systems for assistance.
Note Excessive rotor shaft wear may be indicated if fluid leakage reappears
after recent replacement of the low pressure seals.
2. Check the surface dimensions of the rotor shaft with a micrometer. The
following figure indicates the locations of pertinent measurements.
3. Compare these measurements against the specifications given in the
“Actuator Rotor Dimensions” table.
If the rotor shaft dimensions are less than the minimum dimensions in the
“Actuator Rotor Dimensions” table, contact MTS Systems for assistance.
Rotor Shaft Measuring Points