What Causes a Forklift's Radiator to Frequently Overheat?
1 Answers
Possible causes include a faulty engine thermostat that fails to open, insufficient coolant, malfunctioning engine water pump, clogged radiator, or inoperative cooling fan. It is recommended to visit a 4S dealership or auto repair shop for a detailed diagnosis. The specific reasons for frequent radiator overheating are as follows: Reduced heat exchange efficiency: When issues such as a damaged thermostat, faulty electric fan, or low coolant level occur in the cooling system, the coolant in the radiator cannot be effectively cooled, leading to rising water temperatures. When the boiling point of water is reached, large amounts of bubbles form, occupying part of the radiator's surface area. This results in severe coolant depletion around the cylinder walls. Although there may still be coolant in the radiator, insufficient water around the cylinder walls prevents effective heat dissipation, significantly reducing heat exchange efficiency and hindering the transfer of heat from the cylinders to the radiator. High-load operation: Rapid temperature rise in the cylinders occurs during high-load driving. If this excess heat is not promptly dissipated and high-load operation continues, the strength of components such as pistons, piston rings, and connecting rods may decrease or even lead to deformation, making them unable to withstand normal loads. Additionally, this can disrupt the normal clearances between parts, preventing the formation of proper oil films. In minor cases, it may cause cylinder or bearing wear, while severe cases can result in complete engine damage or failure.
