Maintenance and repair 35/44
RE29583-XH-B/09.19, 4WS2EM10..5X/...XH...,
Bosch Rexroth AG
4.
Change the profile seal
(3)
whenever the filter element is changed.
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 ± 3.8 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 leakage 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 leakage 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 valve connection surface and the valve 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 leakage 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 valve connection surface and the valve contact surface using suitable
cleaning materials.
4.
Assemble the new sealing device.
