MTS Material Test Systems User Manual

Page 72

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background image

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

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