Maintenance and repair 37/48
RE29583-XL-B/09.20, 4WS2EM 10...XL...,
Bosch Rexroth AG
10.4 Repair
WARNING
Explosion hazard due to improper repair!
Improper repair will void the explosion protection!
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For repair, the valve may only be disassembled to the extent described in these
operating instructions.
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Defective parts may only be replaced by new, interchangeable, tested
components in original equipment quality.
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Never disassemble the valve cap or the connector. A disassembly of the valve
cap or the connector will lead to loss of the explosion protection.
10.5 Exchanging the filter element
The valve contains an installed, exchangeable filter element. You can also exchange
the filter element if the valve has already been installed. Replacement filter elements
with FKM seal are available as spare part, see 10.7 "Spare parts".
In case of contamination, you must exchange the filter element as follows:
Fig. 3: Filter element
1
Filter screw
2
Filter element
3
Profile seal
1.
Depressurize the system.
2.
Screw out the filter screw
(1)
(wrench size 22).
3.
Pull the filter element
(2)
out of the filter screw
(1)
using an M4 screw.
Clean the filter screw.
Do not clean the filter element but replace it with a new one.