MTS Material Test Systems - Manual (Page 72)

5 +
Years 2 Year 1 Year 6
months 3
months 2
months 1
Month 1
Week Daily Calendar time
10,000 4,000 2,000 1000 500 320 160 40 8 Running time - Hours
X Inspect for leaks and
wear
MTS Replace
Hydraulic Fluid
X Sensory Check
MTS Particle count
MTS Analyze for
contamination
Load Frame
X Set initial accumulator
check interval
X Check accumulator N2
precharge
X Clean actuator rod and
columns
X Inspect actuator for
leakage
After the valve balancing procedure
(electrical compensation) has been Adjust Servovalve
mechanical null
completed and the results are
judged unsatisfactory.
When servovalve performance has
deteriorated. Change servovalve
filter.
When the load frame sits unevenly. Maintain airmount
pressures
X Check HSM filters
(replace as required)
Series 505 Hydraulic
Power Unit
72 MTS Material Test System Operation
8.0 Routine Maintenance