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Maintenance and repair
Bosch Rexroth AG
, 4WS2EM 10...XL..., RE29583-XL-B/09.20
The following inspection, testing and maintenance work is to be carried out
regularly. The intervals for the same have to be selected in a way - also dependent
on the operating conditions - that ensures that any deficiencies which have
to be anticipated are identified timely. The check must, however, at least be
carried out every
three years from the date of manufacture of the valve.
The date
of manufacture of the valve can be found on the name plate, see chapter 5.1.1
"Information on the name plate".
The check is also to be carried out if the valve is only stored, however not used!
For order details for seal kits, please refer to chapter 10.7 "Spare parts".
In order to ensure a long life cycle and functionality, include the following activities
in your maintenance schedule for the overall system:
1.
De-energize the connection line.
2.
Remove coarse dirt from the exterior.
3.
Check all external fittings for completeness and tight seat.
4.
Check the mating connector, connector and connection line for damage and tight
seat.
5.
Check the valve for external leakage and replace the sealing devices, if required,
see chapter 10.6 "Rectifying external leakages".
10.3 Maintenance schedule
Valves are low-maintenance provided that they are used as intended.
To ensure that the valve functions reliably for a long time, Bosch Rexroth
recommends checking the hydraulic system and the valve regularly.
10.3.1 Checking for leakages
Check the valve for external leakages. An early detection of hydraulic fluid loss may
help you identify and remedy errors. Bosch Rexroth therefore recommends always
keeping the valve and/or the system clean.
10.3.2 Checking for noise development
Check the valve for noise development. Based on the noise development or the
increase in noise development, a possible failure of one or several components can
be recognized in time, and consequential damage can be avoided.
10.3.3 Checking the mounting elements
Check that the mounting elements are attached firmly. All mounting elements are
to be checked when the system is switched off, depressurized and has cooled down.
