Bosch rexroth DBD 1X/ E Series Operating Instructions Manual page 34

34/56 Operation
Bosch Rexroth AG, DBD...1X/..E, RE 25402-B/10.21
5. Set the desired lower response pressure:
Screw out the adjustment spindle so far that the pressure gauge indicates the
desired pressure. When you screw out the valve spindle, the safety valve opens
and limits the system pressure.
6. Tighten the lock nut clockwise using a manual torque wrench with an accuracy of
± 10% and the tightening torque indicated in the table.
Table 14: Information on the lock nut
Valve type + size
Component marking
Wrench size
Tightening torque
7. Switch off the system, let the pressure decrease, depressurize any provided
pressure accumulators, if applicable. Remove the temporarily installed pressure
gauge and seal the additional P port using the plug screw. Tightening torque see
chapter 7.10 "Additional P port (only with response pressure up to 400 bar)".
8. Return any other pressure limiting devices which are installed in the system and
have an impact on channel P and which you have deactivated or removed before
to the normal operating state.
As an alternative to the procedure described above, the safety valve may also be
removed and set to the desired lower response pressure on a test stand.
DBD4 DBD6
1038 849
17 19 19
10 + 5 Nm 10 + 5 Nm 10 + 5 Nm
DBD10 DBD20
850, 390 361
19 19
10 + 5 Nm 10 + 5 Nm
DBD30
362