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Maintenance and repair
Bosch Rexroth AG
, 4WRPEH6_3X, 4WRPEH10_3X, 4WRPE6_3X, 4WRPE10_3X, 4WRLE_4X; RE 29118-B/09.2021
10.1 Cleaning and care
NOTICE
Penetrating dirt and humidity!
Operating failures.
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Always ensure absolute cleanliness when working at the valve!
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Only use a dry and dust-free cloth for all cleaning works.
Solvents and aggressive cleaning agents!
Damage and quicker aging of the valve.
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Do not use aggressive cleaning agents; only use a dry and dust-free cloth for all
cleaning works.
For cleaning and maintenance proceed as follows:
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Perform a visual inspection and check the tight seat of all lines and screws.
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Check all plug-in and clamping connections of the valve for correct seat and
damage at least once a year.
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Check the lines for breaks and crushes. Have damaged or defective lines
exchanged immediately!
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Clean housing parts with a dry and dust-free cloth.
10.2 Inspection and maintenance
WARNING
Dirt and foreign particles in the valve!
Penetrating dirt and foreign particles in the valve lead to wear and malfunctions.
Safe function of the valve can no longer be ensured.
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During assembly, ensure utmost cleanliness in order to prevent foreign particles
such as welding beads or metal chips from getting into the hydraulic lines.
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Do not use linting fabric for cleaning.
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Ensure that no cleaning agents are able to enter the hydraulic fluid.
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Flush the hydraulic system if necessary. Replace the fluid filter or the
hydraulic fluid.
10.3 Repair
The valve with IO-Link interface may only be replaced as complete unit.
For safety-related reasons, Unauthorized modification of the valve is not allowed!
Repair and maintenance works may only be performed by Bosch Rexroth AG.
For repair and maintenance works, send the unit to the service address specified
in chapter 16.1.
Devices returned to Bosch Rexroth for repair should be sent in the original packaging.
Repaired devices are returned with default settings.
User-specific settings will not be applied. The machine end-user must transfer all
appropriate user parameters and programs again.
