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Maintenance and repair
Bosch Rexroth AG
, 4WS2EM 10...XL..., RE29583-XL-B/09.20
4.
Check whether the profile seal
(3)
at the filter screw
(1)
is intact and replace it,
if required (see chapter 10.7 "Spare parts").
5.
Install a new filter element in the filter screw
(1)
.
6.
Screw the filter screw
(1)
into the valve housing and tighten it using a tightening
torque of 30 Nm.
7.
After the filter element has been exchanged, you should check the system for
contamination before re-commissioning. In this connection, observe the operating
instructions of the relevant system manufacturer.
10.6 Rectifying external leakages
External leakages at the valve connection surface can be rectified on site.
Other leakages have to be rectified by specialists of the manufacturer.
10.6.1 Rectifying leakages at the valve connection surface
1.
Remove the valve, see chapter 11 "Disassembly and removal".
2.
Inspect the contact surfaces for seal rings at the valve for cleanliness and
damage.
3.
Inspect the seal rings and recesses on the connection flanges for cleanliness and
damage.
4.
Dry the mounting surface and the contact surface using suitable cleaning
materials.
5.
Assemble the new seals.
6.
Assemble the valve at the contact surface, see chapter 7 "Assembly".
10.6.2 Rectifying leakages at the filter screw
1.
Disassemble the filter screw as described in chapter 10.5 "Exchanging the filter
element".
2.
Check whether the sealing surface for the profile seal is clean and intact.
3.
Dry the mounting surface and the contact surface using suitable cleaning
materials.
4.
Assemble the new sealing device.
10.7 Spare parts
Table 14: Filter element
Material number
Filter element with FKM seal
R961001950
Table 15: Standard seal kit
Material number
Standard seal kit NG10
R961001590
Filter element with
FKM seal
Standard seal kit
