Maintenance and repair 33/44
RE29583-XH-B/09.19, 4WS2EM10..5X/...XH...,
Bosch Rexroth AG
Before the initial commissioning or re-commissioning of the valve in a system,
check whether the valve requires maintenance. If required, carry out
maintenance.
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 and depressurize the relevant system part.
2.
Remove coarse dirt from the exterior.
CAUTION!
Damage to property and personal injury caused by electrostatic charging!
▶
In order to avoid electrostatic charging, clean the valve using a damp cloth only.
3.
Check all external fittings for completeness and tight seat.
4.
Check mating connector, connector and connection line for 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 leakage
Check the valve for leakage. An early detection of hydraulic fluid loss may help you to
identify and remedy errors. Bosch Rexroth therefore recommends that you keep the
valve and/or the system permanently clean.
10.3.2 Checking for noise development
Check the valve for noise development. Based on noise development or the increase
of 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.
