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Maintenance and repair
Bosch Rexroth AG, WMM6..5X/...XC..., RE22280-XC-B/09.19
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 10.6 "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.
Depressurize the relevant system part.
Remove coarse dirt from the exterior.
2.
3.
Check all external fittings for completeness and firm seat.
4.
Check the valve for external leakage; replace the sealing devices, if required
(see chapter 10.5 "Rectifying external leakages").
10.3 Maintenance schedule
Valves require low maintenance if used as intended.
For a long and reliable operation of the valve, Bosch Rexroth recommends regularly
checking the hydraulic system and the valve.
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.
10.4 Repair
Explosion hazard caused by improper repair!
Improper repair will void the explosion protection!
▶
For repair works, the valve may only be disassembled to the extent described in
these operating instructions.
▶
Defective parts may only be replaced by new, interchangeable components in
original equipment quality.
WARNING
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