Other Maintenance Tasks - MTS Systems Landmark 370 Series Product Information

Maintenance

Other Maintenance Tasks

The following table lists the recommended interval for each of these procedures.
What to Do
Make daily inspections
Clean the load unit columns.
Prevent rust
Maintain airmount pressures
Adjust the hydraulic locks
Lubricate the crosshead locking
bolts
Align the force transducer
Check the accumulators'
precharge pressures
Adjust if necessary
Clean exposed actuator piston
rod
Change the HSM filter
Change the filter in the
servovalve
Adjust mechanical null in the
servovalve
Perform sensor calibration
90
Load Unit Maintenance Intervals
When to Do It
Before the start of each day's testing.
When the columns become greasy or dirty.
Depends on the operating environment; more often in
humid environments.
When the load unit sits unevenly.
When the crosshead sticks or moves jerkily on the
column.
Whenever they begin to be hard to tighten or sticky
when loosened.
When the bolts begin to loosen or tighten stiffly (manual
locking crossheads only).
After actuator or force transducer installation; when a
better alignment between the two is desired.
At least once a month; more often as required by
operating conditions.
Weekly; more often as required by operating conditions.
When the indicator is in bypass position or when
hydraulic fluid is changed.
When servovalve performance has deteriorated.
After the valve balancing procedure (electrical
compensation) has been completed and the results are
judged unsatisfactory.
Calibration intervals depend on system requirements
and are typically performed during scheduled
maintenance by MTS trained personnel. Sensors can
include LVDT, load cell, and extensometer.
MTS Landmark™ Tabletop Load Units - Product Information