english 
Here are the correct installation steps for a portable fuel tank:
- Prepare the installation site: First, choose a suitable location for the fuel tank. It should be a well - ventilated area, away from heat sources, sparks, and direct sunlight. Make sure the surface where the fuel tank will be placed is flat and stable to prevent the tank from tipping over.
- Check the fuel tank: Inspect the portable fuel tank carefully before installation. Look for any signs of damage, such as cracks, dents, or leaks. Check that all the components, including the fuel cap, outlet valve, and gauge, are in good condition and functioning properly.
- Position the fuel tank: Gently place the fuel tank in the selected location. If the fuel tank has mounting brackets or feet, ensure they are properly aligned with the surface. For some larger or heavier fuel tanks, it may be necessary to use lifting equipment or get assistance to position it correctly.
- Connect the fuel lines: If the portable fuel tank is to be connected to an engine or other equipment, carefully attach the fuel lines. Use the appropriate fittings and ensure a tight seal to prevent fuel leakage. Follow the manufacturer's instructions for the correct connection method.
- Install safety devices: Install any required safety devices, such as a flame arrestor at the fuel tank vent and a grounding strap to prevent static electricity buildup. These devices are crucial for preventing fires and explosions.
- Test the installation: Once the fuel tank is installed and connected, perform a leak test. Slowly fill the tank with a small amount of fuel and check for any leaks around the connections and the tank body. If any leaks are detected, immediately shut off the fuel supply and repair the problem before proceeding.
- Final checks: Before using the fuel tank, double - check all the connections and safety devices. Make sure the fuel cap is securely tightened and the fuel gauge is working correctly. Also, ensure that the area around the fuel tank is clean and free of any flammable materials.