Owner manual

How to Do ItWhen to Do ItWhat to Do
Refer to the accumulator product
information manual for complete
instructions.
Every 160 hours or 1
month (whichever
occurs first).
Check the precharge pressure
in optional accumulator
Footnote.
Refer to the procedure for precharging
the surge suppressor accumulator.
Every 160 hours or 1
month (whichever
occurs first).
If installed, check the precharge
pressure in the surge
suppressor
Look for dents, bulges, leaks, damaged
gaskets, corrosion, and worn, frayed, or
leaking hoses.
Every 500 hours or 3
months (whichever
occurs first).
Conduct external inspection of
the heat exchanger
Footnote.
Look for signs of wear, check for fluid
leaks, tighten connections as needed.
Every 1000 hours or 6
months (whichever
occurs first).
Inspect hydraulic hoses, replace
as required
Have inspection preformed by a qualified
electrician. Observe all local codes and
Every 1000 hours or 6
months (whichever
Inspect incoming power lines for
loose connections or defects
safety precautions. Ensure alloccurs first), or when
connections are secure. Screws shouldelectric power is
disconnected. be torqued to values specified on
associated labeling.
Refer to procedure for replacing the
Return Line Filter.
Every 1000 hours or 6
months (whichever
occurs first), or when
Replace fluid filter
the dirty-filter indicator
is displayed.
Refer to the accumulator product
information manual for complete
instructions.
Every 1000 hours or 6
months (whichever
occurs first).
Check for hydraulic fluid leakage
across piston style
accumulators
Footnote.
Contact MTS Systems Corporation.Every 1000 hours or 6
months (whichever
occurs first).
Verify functionality of HPU
interlocks
Footnote.
Contact MTS Systems Corporation.Every 1000 hours or 6
months (whichever
occurs first).
Check motor overload
functionality
Footnote.
Contact MTS Systems Corporation.Every 1000 hours or 6
months (whichever
occurs first).
Verify proper operation of
hydraulic valves
4
Obtain a sample and submit it for
analysis. MTS recommends that the
Every 1000 hours or 6
months (whichever
Conduct a hydraulic fluid
analysis
1
See the Series 111 Accumulator Product Information manual (part number 011-553-304). An accumulator is
an optional feature that can be added to the pressure line.
2
See the Heat Exchanger Care Guide (part number 015-164-000).
3
Special Training Required. Contact MTS Systems Corporation.
4
See the Hydraulic Fluid Care Guide (part number 050-000-536).
Series 505G2 SilentFlo™ Hydraulic Power Unit Product Information 75
Maintenance