Operation; General Information - Bosch Rexroth H-4WEH...XE Series Operating Instructions Manual

4/2 and 4/3 directional valves, internally pilot-operated, externally pilot-operated
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Clockwise rotation extends the switching time.
Counterclockwise rotation shortens the switching time.
4.
Tighten the lock nut (3) with a tightening torque of 8 ± 2 Nm.
5.
Reattach the protective cap (1) (tightening torque 1...2 Nm).

9 Operation

9.1 General information

Explosion hazard caused by overheating!
Loss of explosion protection due to overheating.
In case of valves with two solenoids, maximally one of the solenoids may be
energized at a time.
Simultaneous power supply of several valves in bank assembly is possible if the
ambient temperature does not exceed 60 °C.
In case of bank assembly, if only one of the solenoids is energized at a time,
and during individual operation, the maximum ambient temperature may not
exceed 70 °C.
loud noise!
In case of an unfavorable disposition of valves, resonance or fluid noises,
e.g. whistling, may result. In continuous operation, these noises may cause
hearing damage in persons or damage at the valves.
In this case, contact a service engineer.
Only use the valve within the performance range provided in "Data sheet 24751-XE".
The machine or system manufacturer is responsible for the correct project planning
of the hydraulic system and its control.
Changing the settings at the valve is not admissible.
For information on the operation, please refer to the operating instructions for
the hydraulic system into which the valve is installed.
If errors occur, refer to chapter 14 "Troubleshooting".
DAnGER
CAUTIOn
RE 24751-XE-B/04.16, H-4WEH...XE..., Bosch Rexroth AG
Operation
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