Bosch Rexroth RE 07009-MON General Assembly Instructions page 16

16/20 Bosch Rexroth AG
CAUTION!
WARNING!
WARNING!
Preparation
Cleaning the lines
Assembly Instructions for Hydraulic Power Units | RE 07009-MON/11.17
Wear, tear and malfunctions!
The cleanliness of the hydraulic fluid has a considerable impact on the cleanliness
and service life of the hydraulic system as a whole. Any pollution/contamination of
the hydraulic fluid will result in wear and malfunctions. In particular, foreign bodies
e.g. welding beads or metal swarf in the hydraulic lines may damage the hydraulic
power unit.
Always ensure absolute cleanliness.
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Assemble the hydraulic power unit free from any pollution/contamination.
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Ensure that all connections, hydraulic lines and add-on units
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(e.g. measuring instruments) are clean.
Ensure that no pollutants are able to penetrate when sealing the connections.
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Ensure that no detergents are able to penetrate the hydraulic system.
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Do not use cleaning rags/cotton waste or linty cloth for cleaning.
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Do not under any circumstances use hemp as a sealant.
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Risk of injury from ejection of high-pressure oil!
If the nominal pressure is exceeded, the component may burst.
The connection lines should be dimensioned in accordance with the
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performance data in the circuit diagram.
You should only use components that are designed for the required pressures.
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Risk of injury from ejection of high-pressure oil!
Fittings with metric or Whitworth threads may for certain sizes be mis-matched
without this being immediately evident. Fittings with threads that are mis-matched
will not withstand the specified nominal pressure.
You should therefore ensure that there is no risk of confusion with respect to
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the correct screw fittings.
Remove the blanking plugs and flange covers (colored plastic) and replace them
with pressure-resistant fittings or flanges.
You should observe the manufacturer's installation instructions for the screw
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fittings to ensure there is no external leakage. We recommend the use of
fittings with elastic seals.
Before installing, clean the connection lines to the hydraulic system, ensuring
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they are free from dirt, scales, chippings, etc. Welded pipes must be blank on
the inside and flushed.
Do not use cleaning rags/cotton waste for cleaning.
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