1 filters – MTS Hydraulic Power Unit Model 506-92 User Manual

Page 14

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3-2 Service

Table 3-1. Maintenance Schedule

Procedure

Interval

Subsection

Check output pressure on gage

*

daily

Replace high-pressure filter

whenever the indicator points to

change

3.1.1

Replace low-pressure filter

whenever Dirty Filter indicator lights

3.1.1

Check hydraulic fluid level on gage

daily

3.1.2

Check hydraulic fluid in reservoir

150 operating hours

3.1.2

Analyze hydraulic fluid

500 operating hours

3.1.2

Check accumulator precharge

at established interval

3.1.3

Check hydraulic hoses

monthly

*

See Subsection 3.2.1 to adjust the output pressure.

3 . 1 . 1

Filters

Fluid filtration is provided by two 10-micron high-pressure filters (one for
each pump), and one 3-micron low-pressure filter. See Figure 3-1 for the
location of the filters and their drains.

WARNING

!

High-pressure release occurs if the system is pressurized.

High-pressure release may cause personal injury or damage equipment.

Ensure that the output pressure gage reads zero before replacing the
filters.

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