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What to do if the wet spray machine's engine coolant level is too low
Release time:
2025-11-21
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Summary:
How to Handle Low Coolant Level in a Wet Spray Machine Engine
1. Check the coolant level
Shutdown Inspection: After the engine has cooled down (to avoid scalding from high temperatures), open the radiator cap or expansion tank and check whether the fluid level is below the minimum mark (MIN line).
Temperature-related differences: The liquid level may appear slightly higher during operation due to thermal expansion, but it’s more accurate when the engine is cold. We recommend checking under cold conditions.
2. Top up the coolant
Select the correct model: Add antifreeze coolant that matches the original fluid’s brand and specifications (to avoid mixing, which could trigger chemical reactions). If the same type isn’t available, you can temporarily top up with distilled water, but be sure to replace it with compliant coolant as soon as possible.
Slowly add fluid: The liquid level should be between MIN and MAX to prevent overflow caused by overfilling.
3. Identify and address leak points
External Leak Check: Inspect the interfaces of the water tank, water pipes, water pump, thermostat, and other components for any signs of leakage, paying particular attention to water stains left on the floor or engine body.
Internal leakage: If coolant is decreasing rapidly without any visible external leaks, it could indicate a damaged head gasket or a cracked cylinder block. In such cases, check whether the engine oil has become emulsified (appearing milky white and foamy), and observe whether the exhaust emits white smoke.
4. Exhaust Operation (Eliminating Air Locks)
After adding coolant, start the engine and let it idle until the water temperature returns to normal. Then, carefully open the radiator cap (watch out for steam) or the bleed screw to release any trapped air, continuing until the coolant level stabilizes.
5. Monitor Operating Status
After replenishing the coolant, operate the wet spray machine and monitor whether the water temperature gauge is functioning properly (typically between 80–95°C), ensuring no alarm prompts appear. If the temperature remains excessively high, further inspection of the cooling system is required—check for issues such as fan malfunctions or a faulty thermostat.
6. Preventive Measures
Regular Inspection: Check fluid levels every shift or after 50 hours of operation, with a special focus on confirming them before long-distance trips.
Replacement interval: Replace the coolant every 2 years or after 2,000 hours of operation (as specified by the manufacturer), to prevent acidification and corrosion of the system lines.
Environmental Adaptation: In high-altitude and cold regions, use low-temperature antifreeze coolant (e.g., -35°C specification) to prevent freezing and subsequent cracking of the engine block.
7. Emergency Procedures (When No Backup Coolant Is Available)
You can temporarily add purified water or distilled water as an emergency measure, but be sure to drain and replace it with proper coolant as soon as possible to prevent scale buildup and corrosion.
8. Professional Maintenance Recommendations
If fluid levels repeatedly drop or are accompanied by abnormalities (such as high water temperature or reduced engine performance), please take the unit in for inspection and repair.
Pressure Test: Check the water tank's seal.
Cylinder Pressure Test: Identifying Internal Leakage Issues.
Attention: Wear gloves and safety goggles during operation, and avoid contact with high-temperature components or coolant (ethylene glycol is toxic).
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Changsha Base:Hunan Zenxon Heavy Industry Technology Co., Ltd.
Address: Jinrong Tongxin International Industrial Park, Changsha High-tech Zone
Loudi Base:Hunan Haoda Heavy Industry Technology Co., Ltd.
Address: Loudi Avenue, Loudi High-tech Industrial Development Zone, Lianyuan City, Loudi City, Hunan Province
Telephone:400-186-0868
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