MTS Series 201 Actuators - Manual (Page 37)

Series 201 Actuator Product Information 37
Maintenance
Series 201 Hydraulic Actuators are designed for extended periods of operation
with minimal maintenance requirements. A summary of the routine maintenance
procedures is listed below.
As necessary
If a compression relief valve is installed, check and adjust the compression relief
valve operating pressure to ensure that the maximum actuator compression force
is consistent with the current test requirements.
Check the torque of bolted connections to ensure system integrity. Loose bolts
can lead to component failure.
Weekly
Clean exposed areas of the actuator piston rod with a clean, dry, lint-free rag. If
the actuator is continually exposed to a dirty operating environment, clean the
piston rod on a daily basis.
Monthly Inspect actuator piston rod and seals for excessive wear and/or leakage. Small
scratches in the axial direction of the piston rod or polishing of the rod surface is
considered normal operating wear.
Yearly Change actuator seals if necessary. Actuator assemblies can require more or less
frequent seal changes depending on usage. External oil leakage or decreased
performance are indications of seal wear. For information on seal replacement,
contact MTS Systems corporation .