REXROTH A4VG - Valve Service and Replacement; Replacing the High Pressure Relief Valve

20/40 Bosch Rexroth AG A4VG Series 40 | RE 92004-01-S031/08.2015
Valves
7 Valves
The material numbers for the special tools are to be found in the Special Tool
Catalog RE 92004-01-S081.
If not explicitly specified, permissible tightening torques for the bolted
connections are to be found in Chapter "10 Settings".
7.1 Seal/replace the high pressure relief valve
This section describes how you seal/replace the high pressure relief valve.
Depending on the model, valves not shown in the diagram may be present on
your unit.
The variable pump is equipped with two high pressure relief valves. The same
steps are required to seal each of the high pressure relief valves.
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Fig. 10: High pressure relief valve
1 Threaded plug
2 O-ring
3 Pressure spring
4 O-ring
5 Valve insert
6 High pressure relief valve
7 Pump case