I. Vibration Bearings (Most Vulnerable) Overloading keeps bearings under excessive load for extended periods, shortening their lifespan by 30%–50%.
Lubrication failure at high temperatures easily leads to annealing, wear, or seizing, accompanied by abnormal "humming" or "clicking" noises during operation.
II. Hydraulic System (Highest Failure Rate) A 15–20°C increase in hydraulic oil temperature causes oil oxidation, decreased viscosity, and aging of seals.
Common problems include valve sticking, pump wear, pipeline leaks, and even bursts, affecting the overall machine's responsiveness.
III. Steel Wheel Welds (Core of Structural Safety) Accumulated metal fatigue makes weld areas prone to micro-cracks, especially at hub connections and reinforcing ribs.
If not detected in time, this can lead to steel wheel breakage, causing serious safety accidents.
IV. Engine (Power Heart) Prolonged high loads cause black smoke, reduced power, and oil emulsification or deterioration.
In extreme cases, this may lead to irreversible damage such as cylinder scoring and bearing seizure, resulting in extremely high repair costs.
V. Shock Absorption and Buffer Devices (Protection Function Failure) Cracks in the rubber shock absorbers and oil leaks from the hydraulic buffer cylinders cause them to lose their shock absorption capacity, leading to direct damage to the machine frame.
