How should a fuel cube tank that has not been used for a long time be maintained

1. Properly Dispose of Residual Fuel
Before long-term storage, thoroughly clean any residual fuel from the fuel tank. If fuel remains in the tank for an extended period, it can deteriorate, producing gum-like substances that adhere to the tank's inner walls and related components, potentially clogging fuel lines during subsequent use. Use specialized equipment to extract the fuel during cleaning, ensuring no fuel residue remains inside the tank to prevent corrosion or damage.
2. Thoroughly Clean the Fuel Tank Inside and Out
After removing residual fuel, thoroughly clean the inside and outside of the fuel tank. For the exterior, use a mild detergent to wipe away surface dust, oil, and other impurities, preventing prolonged adhesion and corrosion of the tank shell. For the interior, use a professional fuel tank cleaner, following the correct cleaning procedures, to remove any dirt and gum that may be present on the inner walls, keeping the tank clean and ready for future use.
3. Carefully Inspect Key Components
A thorough inspection of the fuel tank's key components is essential. 4. **Focus on inspecting the welds of the fuel tank for signs of leakage.** Repair any leaks immediately. Also check the fuel tank cap, vent valve, and interfaces to ensure they are undamaged, show no signs of aging, and have good sealing performance. Replace or repair any problematic components promptly to prevent further damage from prolonged inactivity and potential impact on future use.
4. Choose a Suitable Storage Environment
Store the fuel tank in a suitable environment. Place it in a dry, well-ventilated location to prevent rusting caused by moisture. Keep it away from fire sources, high-temperature areas, and corrosive substances to prevent damage from heat or corrosion. During storage, cover the fuel tank with a dust cover to reduce dust accumulation. Regularly check the storage environment to ensure it consistently meets the fuel tank's storage requirements and keeps it in good condition.