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Decompose pictures
| Reference Number | Part Name | Description & Function |
|---|---|---|
| 1 | Solenoid Coil Assembly | 24V DC continuous-duty coil. Generates the magnetic field required to actuate the control spool. |
| 2 | Coil Retaining Nut | Secures the solenoid coil to the valve housing. Prevents loosening under constant vibration. |
| 3 | Valve Body | High-strength steel block with precision-honed internal galleries and spool bore for high-flow capacity. |
| 4 | Control Spool | Hardened and ground steel spool. Shifts to direct hydraulic oil to the correct working port. |
| 5 | Centering / Return Spring | Ensures the spool returns to its fail-safe neutral position immediately upon de-energizing. |
| 6 | Static Seal Kit | Viton O-rings and backup rings to ensure a leak-free interface between the valve and the manifold. |
| 7 | Manual Override Pin | Emergency mechanical actuation pin for diagnostic purposes when electrical power is unavailable. |
| 8 | DIN 43650 Connector Port | Standardized square electrical interface for quick and secure wiring harness attachment. |
Parts list
| Item | OEM Reference No. | COGENG Part No. | Description | Qty |
|---|---|---|---|---|
| 1 | 5614032 | CG-5614032 | 24V Solenoid Directional Valve (Complete Assembly) | 1 |
| 2 | 5615344 | CG-5615344 | 24V Solenoid Directional Valve (Complete Assembly) | 1 |
| 3 | — | CG-SEAL-KIT-LHB | Seal Kit for 5614032 / 5615344 (Viton O-Rings & Backup Rings) | 1 Set |
| 4 | — | CG-COIL-24V | 24V Replacement Solenoid Coil with Retaining Nut | 1 |
| 5 | — | CG-CONN-DIN-A | DIN 43650 Form A Electrical Connector (Square Plug, with gasket) | 1 |
Installation decomposition diagram
| Step | Action | Key Component | Important Specification / Torque |
|---|---|---|---|
| 1 | Safety Preparations | Entire Machine | Park the excavator safely, relieve all hydraulic pressure, and disconnect the battery. |
| 2 | Electrical Disconnect | DIN Connector (Item 8) | Unplug the wiring harness from the old solenoid valve socket. |
| 3 | Remove Old Valve | Old Valve Assembly | Using a suitable wrench, unscrew the complete old valve from the hydraulic manifold. |
| 4 | Surface Preparation | Manifold Port & Seals | Remove the old seal kit completely. Clean the machined surface, ensuring no debris falls inside. |
| 5 | Lubricate Seals | Seal Kit (Item 6) | Coat the new Viton O-rings with clean hydraulic oil and fit them onto the new COGENG valve. |
| 6 | Install New Valve | COGENG Valve (Item 1 or 2) | Screw in hand-tight, then torque the valve body hex to 40–50 Nm. |
| 7 | Adjust & Secure Coil | Coil (Item 1) & Nut (Item 2) | Rotate the coil for optimal cable routing, then tighten the retaining nut to 5–7 Nm. |
| 8 | Reconnect & Test | DIN Connector & Battery | Plug in the connector, reconnect the battery, and perform a full hydraulic function test. |
Frequently Asked Questions
| FAQ Topic | Question | Answer |
|---|---|---|
| Model Coverage | Does this valve fit my Liebherr excavator? | These valves are a direct OEM replacement for Liebherr crawler excavator models 309, 313, and 314. |
| Cross-Reference | What is the difference between 5614032 and 5615344? | While both are 24V solenoid valves for the same model range, they often control different hydraulic circuits. Please verify your required OEM part number against the machine's parts manual or the stamping on your old valve before ordering. |
| Direct Replacement | Is the COGENG valve a true plug-and-play part? | Yes. It is manufactured to OEM specifications for form, fit, and function. Simply clean the port, replace the seals, install the valve, and attach the electrical connector. No software updates are required. |
| High Flow & Durability | Why is this described as "durable, high flow"? | The COGENG valve features a hardened steel spool and body, precision-machined galleries for optimized flow rates, and Viton seals for high-temperature resistance, ensuring longevity under demanding duty cycles. |
| Shipping & Stock | What does "In stock, fast shipping" mean? | We maintain a ready inventory of COGENG CG-5614032 and CG-5615344 valves. Orders are typically dispatched the same business day and shipped via express courier for delivery within 3–7 business days globally. |
| Troubleshooting | What if the new valve buzzes or gets hot? | A warm coil (around 60–80°C) is normal for continuous-duty 24V coils. A loud buzzing or extreme heat usually indicates low system voltage (<20V) or contamination in the hydraulic oil. Check your battery and oil cleanliness first. |
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