Maintenance and repair
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RE22280-XC-B/09.19, WMM6..5X/...XC...
Bosch Rexroth AG
10.5 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.
1.1.1 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 mounting surface and the contact surface using suitable
cleaning materials.
5.
Assemble the new seals.
6.
Re-assemble the valve at the contact surface, see chapter 7 "Assembly".
10.6 Spare parts
Table 8: Spare part: seal kit for the valve connection surface
Spare part
Material number
FKM seal kit for the valve connection surface
R961000838
NBR seal kit for the valve connection surface
R961000837
Table 9: Valve mounting screws
Type
Quantity
Friction coefficient
according to VDA 235-101
Material number
Hexagon socket head cap screw
ISO 4762-M5×50-10.9
(protected against corrosion)
4
0.09...0.14
R913043758
In case of questions about spare parts, please contact your responsible
Bosch Rexroth Service:
Bosch Rexroth AG
Service Hydraulics
Bürgermeister-Dr.-Nebel-Str. 8
97816 Lohr am Main
Tel: +49 (0) 9352/40 50 60
[email protected]
For the addresses of our sales and service network please refer to:
www.boschrexroth.com/adressen
Seal kits for the valve
connection surface
Valve mounting screws
