I. Accelerated Damage to Core Components Due to Fluid Deterioration
1. Engine oil loses its lubricating ability after high-temperature oxidation, leading to serious malfunctions such as cylinder scoring and bearing seizure.
2. Deteriorated hydraulic oil produces gum and metal shavings, which can clog valve assemblies, wear down pump bodies, and cause hydraulic system failure.
3. Emulsification or foaming of transmission fluid will cause gear lubrication failure, resulting in gear grinding and shaft breakage risks.
II. Irreversible Cumulative Overheat Damage
1. Bearings will anneal and soften under continuous high temperatures, shortening their lifespan by 30%–50% and making them highly susceptible to sudden seizure.
2. Rubber seals crack due to high-temperature aging, leading to hydraulic oil leakage and air entering the system, affecting transmission efficiency.
3. Untreated radiator blockage creates a vicious cycle, making overheating more likely during subsequent operations.
III. High Risk of Structural Fatigue Hazards
1. Continued use of steel wheel welds without inspection may allow micro-cracks to expand into fracture accidents, threatening operator safety.
2. When the shock absorption device fails, the impact force is directly transmitted to the frame, causing deformation or cracking.
IV. Double Loss of Construction Safety and Efficiency
1. The combined effects of increased braking distance and steering delay make the machine extremely prone to slippage or collisions when operating on slopes.
2. Frequent equipment downtime for maintenance significantly reduces effective working time, impacting project progress.
3. Repair costs after a malfunction can be 5–10 times higher than emergency maintenance.
