MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-11 - Manual (Page 57)

505.07/.11 HPU Maintenance Schedule
Model 505.07/.11 SilentFlo™ HPU Maintenance 57
Spare parts
Parts that are specified in the maintenance procedures of this section can be
obtained from MTS Systems Corporation. See “Contact information” on the back
of the title page to order spare parts.
Lockout/tagout
For your safety, follow all appropriate lockout/tagout procedures while
performing HPU maintenance.
Operating the HPU
When running the HPU, become familiar with the sounds and smells of the HPU.
Changes in the sounds and smells of the HPU might indicate that maintenance or
service is needed.
Verify proper operation of
hydraulic valves
†
Every 1000 hours or 6 months
(whichever occurs first). Contact MTS Systems Corporation.
Conduct a hydraulic fluid
analysis
‡
Every 1000 hours or 6 months
(whichever occurs first), or sooner
if duty is severe. Obtain a sample and submit it for analysis.
MTS recommends that the sample be
analyzed by our contracted service. Ask
your Field Service Engineer for
information.
See related procedure.
Replace hydraulic fluid
‡ As determined by analysis. Refer to the appropriate procedure.
Conduct internal
inspection of heat
exchanger *,†
Every 2000 hours or yearly
(whichever occurs first). Look for signs of fouling or corrosion,
conduct chemical or mechanical internal
cleaning as inspection warrants.
Check case drain flow of
hydraulic pump Every 2000 hours or yearly
(whichever occurs first). Contact MTS Systems Corporation.
Replace heat
exchanger *,†
Every 5000 hours or 3 years
(whichever occurs first). Replace as inspection warrants.
Contact MTS Systems Corporation.
Inspect the motor and
pump. Replace motor
bearings
†
Every 30,000 hours or 5 years
(whichever occurs first). Motors may be rewound or replaced as
required by inspection.
Hydraulic pumps may be rebuilt or replaced
as required by inspection.
Contact MTS Systems Corporation.
Replace hydraulic hoses † Every 10,000 hours or 5 years
(whichever occurs first). Contact MTS Systems Corporation.
* See the Heat Exchanger Care and Water Quality Guide (part number 015-164-000).
† Special training required. Contact MTS Systems Corporation.
‡ See the Hydraulic Fluid Care Guide (part number 050-000-536).
Maintenance Schedule (part 2 of 2)
W HAT TO D O W HEN TO D O I T H OW TO D O I T