4WRZ10E1-50-7X/6EG24N9EK4/M
4WRZ10E85-7X/6EG24N9ETK4/D3M
4WRZ10E1-50-7X/6EG24N9ETK4/D3M Original directional valve Rexroth German hydraulic proportional valve

FAQ:

1. Q: How to clean the 4WRZ10 valve?
A: Disassemble the valve (following the service manual), clean all components with a petroleum-based solvent, dry thoroughly, and inspect for wear or damage.

2. Q: What are common causes of spool sticking in the 4WRZ10?
A: Contamination (dirt, metal particles), fluid degradation (oxidation, varnish), or excessive friction due to misalignment or worn seals.

3. Q: How to diagnose a faulty proportional solenoid?
A: Check the solenoid resistance (typically 2-5 Ω for 24 V DC coils) with a multimeter; no continuity or abnormal resistance indicates a faulty coil.

4. Q: What causes leakage from the valve’s body?
A: Damaged O-rings/gaskets, loose mounting bolts, port thread damage, or excessive system pressure beyond the valve’s rating.

5. Q: Why is the 4WRZ10 not responding to the electrical signal?
A: Possible causes: incorrect wiring, power supply failure, faulty amplifier, damaged solenoid, or spool sticking; verify each component sequentially.

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