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Solenoid Valve, 585-9230 for CAT 320GC E323D E336gc Excavator, 24v, Industrial Valves

Part Name: Solenoid Valve Part Number: 585-9230 5859230 Applicable to spare parts for Caterpillar CAT E320GC, E323GC, E330GC and E336GC excavators

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Detailed introduction

Part Number: 585-9230 / 5859230
Type: Hydraulic Proportional Solenoid Valve (also commonly referred to as main pump / distribution valve solenoid valve)
Voltage: 24V (Standard for excavators)
Applicable Models: Caterpillar E320C/E320GC/E323D/312/313/315/317/325/330/335/336 Series Excavators
Function: Controls the flow of the hydraulic pump and the pressure of the main valve to adjust operating speed and the coordination of combined movements

📌 Key Features & Functions
Functional Positioning
Serving as the "electronic regulating valve" of the excavator's hydraulic system, it adjusts the spool opening via electrical signals to regulate the output flow of the hydraulic pump or the pressure of the distribution valve. It directly affects:
- The smooth operation of the boom, arm and bucket
- The coordination of combined movements (e.g., lifting the boom while retracting the arm)
- The response speed of travelling and slewing

Typical Fault Manifestations
- Jerky, erratic or complete loss of movements
- Weak combined movements; normal speed for single movements but obvious slowdown during combined operations
- System pressure buildup and engine speed drop

Appearance & Structure
- Metal body with waterproof connector (2-pin brown connector, Caterpillar dedicated interface)
- Equipped with O-ring seal for installation on hydraulic valve manifolds
- Spool with orifice design for high control accuracy; requires high cleanliness of hydraulic oil

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