Expert Troubleshooting & FAQ for E320 Solenoid Valve

Why Choose This Swing Rotary Solenoid Valve?

Our 4I5674 valve uses an OEM-standard tri-metal structure, ensuring superior magnetic conductivity and mechanical strength. It is trusted by repair shops and equipment fleets worldwide for its reliability in harsh construction environments.

Question: What are the symptoms of a failing 4I5674 solenoid on a CAT E320?

Answer: Common signs include the excavator being unable to swing, slow swing speed, or the swing brake failing to release. If the solenoid coil is burnt or the valve core is stuck, the hydraulic signal cannot reach the control valve. Replacing with a new 4I-5674 valve usually resolves these electronic-to-hydraulic communication issues.

Question: How do I test if my 4I-5674 valve is defective?

Answer: First, check the resistance of the solenoid coil using a multimeter (standard range is usually 20-50 ohms depending on temperature). Second, check for 24V power at the connector when the swing command is activated. If power is present but no action occurs, the mechanical valve core may be seized.

Not sure how this issue affects your equipment?

Our team helps operators:

• Identify potential risks during maintenance

• Recommend suitable replacement parts if needed

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