Maintenance
120
Landmark™ Test System Operation
What to Do
When to Do It
Lubricate the crosshead
locking bolts
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).
Align the force
transducer
After actuator or force transducer installation; when a better alignment
between the two is desired.
Check the
accumulators’
precharge pressures.
Adjust if necessary
At least once a month; more often as required by operating conditions.
Clean exposed actuator
piston rod
Weekly; more often as required by operating conditions.
Change HSM filter
When the indicator is in bypass position or when hydraulic fluid is
changed.
Perform 252
Servovalve
maintenance: change
filter
When servovalve performance has deteriorated.
Perform 252
Servovalve
maintenance: adjust
mechanical null
After the valve balancing procedure (electrical compensation) has been
completed and the results are judged unsatisfactory.
Perform sensor
calibration
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.
Load Unit Maintenance Intervals (continued)
Daily Inspections
Before the start of each day’s testing, do a quick inspection of the load unit. Following are typical things
that should be checked daily:
l
Ensure that there are no leaks from lifts or locks.
l
Check the drip pan and ensure that there are no leaks from the actuator, hydraulic service
manifold, servovalve, or accumulators.
l
Ensure that electrical connections are tight, with no frayed or poorly routed cables.
l
Ensure that hoses are routed properly, not wearing, and the fittings are not leaking.
Содержание Landmark 370 Series
Страница 39: ...System Introduction Landmark Test System Operation 39...
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Страница 99: ...Running the Example HCF Test Landmark Test System Operation 99 Generate a Report 1 Generate a report...
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Страница 123: ...Decommissioning Landmark Test System Operation 123 Decommissioning Decommission 124...
Страница 131: ...Index Landmark Test System Operation 131 Z zero sensor Auto Offset 73 sensor see Auto Offset 67...
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