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Bosch Rexroth H-4WEH...XE Series Operating Instructions Manual page 36

4/2 and 4/3 directional valves, internally pilot-operated, externally pilot-operated
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Commissioning
Setting the switching time
Bosch Rexroth AG, H-4WEH...XE..., RE 24751-XE-B/04.16
With valves, which have been equipped with a twin throttle check valve (see
figure 6) ex factory (type ...S... or ...S2..., see "Data sheet 24751-XE, type code"),
you can adjust the switching time yourself.
With type ...S..., the throttle is installed in the supply to the main valve.
With type ...S2..., the throttle is installed in the discharge of the main valve.
Fig. 6: Twin throttle check valve
1
Pilot control valve
2
Twin throttle check valve
3
Main valve
Fig. 7: Setting the switching time
1.
Remove the protective cap (wrench size 20) (1).
2.
Loosen the lock nut (3) (wrench size 10).
3.
Change the switching time by rotating the set screw (internal hexagon, size 5) (2).

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