MTS Series 505G2 SilentFlo Hydraulic Power Unit Model 505G2-11 - Manual (Page 59)

Sample the Hydraulic Fluid
Model 505G2.07/.11 SilentFlo™ HPU 59
Sample the Hydraulic Fluid
This section describes how to check the quality of the hydraulic fluid. Review the
following hints before obtaining your sample:
• Avoid contamination.
– Keep the sample bottle in the storage box of the hydraulic fluid
sampling kit until it is needed.
– Do not remove the cap from the bottle until immediately before taking
the sample.
– Do not set the cap down on a dirty surface or in an area where airborne
dust can settle.
• For additional information on hydraulic fluid care, see the Hydraulic Fluid
Care Guide (part number 050-000-536) found in the documentation package
inside the electrical control box.
• Hold the hose valve assembly still when taking a sample.
• Do not let the hose sample assembly line touch the mouth of the bottle or go
into the bottle.
Prerequisite You will need a hydraulic fluid sampling kit (part number 055-589-601).
Procedure
Take a fluid sample from the reservoir to get a visual indication of the fluid level
and relative contamination. Clean hydraulic fluid is clear and has an amber color.
If the composition of the fluid appears to have changed, obtain a sample of the
hydraulic fluid from the sample port and check the fluid qualities.
Control Manifold
Bypass Valve
Hose Valve Assembly
Needle Valve
Sample Port