4439383 4689079 4447867 Fan Pump Hitachi Excavator EX1900 EX1900-5 EX1900-6 Hydraulic Pump

The EX1900 is a model of hydraulic excavator manufactured by Hitachi. The fan pump in this context is an essential component of the excavator's cooling system. It is responsible for driving the cooling fan that regulates the temperature of the engine and hydraulic systems.

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Key Aspects of the EX1900 Fan Pump

1. Function: The primary function of the fan pump is to maintain optimal operating temperatures for the excavator's engine and hydraulic systems by circulating coolant through the radiator and other cooling components.

2. Specifications: While exact specifications can vary, fan pumps typically have specific flow rates, pressure ratings, and power requirements. They are designed to handle the high demands of heavy machinery operations.

3. Maintenance: Regular maintenance of the fan pump is crucial to ensure the longevity and efficiency of the excavator. This includes:

   • Checking and replacing hydraulic fluid as needed.
   • Inspecting the pump for signs of wear or damage.
   • Ensuring the cooling fan operates smoothly and without obstruction.

4. Common Issues: Potential issues with the fan pump can include leaks, reduced flow rate, or complete failure, often due to wear and tear or contamination in the hydraulic fluid.

5. Replacement and Repair: When servicing the EX1900, it's important to use genuine Hitachi parts or certified replacements to maintain performance and reliability.

Finding Information and Parts

For specific details about the EX1900 fan pump, including part numbers, specifications, and service manuals, the following resources can be helpful:

• Hitachi Construction Machinery Website: Official documentation, parts catalogs, and service manuals.
• Dealers and Distributors: Authorized Hitachi dealers can provide parts and service.
• Technical Support: Hitachi's customer support can offer technical assistance and troubleshooting.

Example Specifications (Hypothetical)

• Model: Hitachi EX1900 Fan Pump
• Flow Rate: 150 liters per minute
• Pressure Rating: 250 bar
• Power Requirement: 30 kW
• Weight: 50 kg