MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-11 - Manual (Page 56)

Model 505.07/.11 SilentFlo™ HPU 56
505.07/.11 HPU Maintenance Schedule
Maintenance
505.07/.11 HPU Maintenance Schedule
The following table lists the recommended interval for each maintenance
procedure.
Maintenance Schedule (part 1 of 2)
W HAT TO D O W HEN TO D O I T H OW TO D O I T
Make daily visual
inspections Before the start of each day’s
testing. Check electronic enclosure ventilation.
Check status of dirty filter indicator.
Look for signs of fluid leakage.
Check the fluid level in the sight gage.
Check system operating pressure and adjust
as required.
Check fluid quality and
condition Every 40 hours or 1 week
(whichever occurs first). Compare the condition (including odor and
color) of the fluid to that of your sample.
Check functionality of
warning and interlock
devices Every 40 hours or 1 week
(whichever occurs first). Depress emergency stop button(s) to verify
that warning and interlock devices are
functioning properly.
Depress fault indicator light bezel to test
bulb.
Check the precharge
pressure in optional
surge suppressor Every 160 hours or 1 month
(whichever occurs first). Refer to the appropriate procedure.
Conduct external
inspection of the heat
exchanger
*
Every 500 hours or 3 months
(whichever occurs first). Look for dents, bulges, leaks, damaged
gaskets, corrosion, and worn, frayed, or
leaking hoses.
Inspect hydraulic hoses,
replace as required Every 1000 hours or 6 months
(whichever occurs first). Look for signs of wear, check for fluid
leaks, tighten connections as needed.
Inspect incoming power
lines for loose
connections or defects Every 1000 hours or 6 months
(whichever occurs first), or when
electric power is disconnected. Have inspection performed by a qualified
electrician. Observe all local codes and
safety precautions. Ensure all connections
are secure. Screws should be torqued to
values specified on associated labeling.
Replace fluid filter Every 1000 hours or 6 months
(whichever occurs first), or when
the dirty-filter indicator lights. Refer to the appropriate filter replacement
procedures.
Check auto-cooling
circuit functionality Every 1000 hours or 6 months
(whichever occurs first). Refer to the appropriate procedure.
Verify functionality of
HPU interlocks †
Every 1000 hours or 6 months
(whichever occurs first). Contact MTS Systems Corporation.
Check motor overload
functionality
†
Every 1000 hours or 6 months
(whichever occurs first). Contact MTS Systems Corporation.