In the world of construction machinery, hydraulic systems are like the blood circulation system of the human body, and hydraulic oil is the "blood" that maintains the normal operation of this system. The normality of hydraulic oil level directly affects the working efficiency and service life of equipment. As a qualified equipment operator or manager, it is crucial to master the correct hydraulic oil level inspection and maintenance methods.
Hydraulic oil level inspection is a task that requires strict adherence to standardized procedures. Firstly, the equipment must be parked on a flat and solid surface to ensure complete stability. At the same time, it is necessary to ensure that the frame is straight and maintain a standard posture, which is the basic prerequisite for obtaining accurate measurement results.
The preparation work also includes placing the working device in place, especially placing the bucket flat and ensuring that all hydraulic cylinders are in the retracted state. After the engine is turned off, it needs to be left to stand for 15-30 minutes to allow the hydraulic oil in each oil circuit to fully flow back to the tank. Before inspection, pay attention to cleaning the area around the dipstick hole to prevent impurities from entering the hydraulic system.
The correct measurement method is crucial. After removing the dipstick, thoroughly wipe it clean, then fully insert it again, and observe the position of the oil stain after pulling it out again. The ideal oil level should be above the middle of the scale line, which can ensure sufficient oil supply and reserve enough space for thermal expansion of the oil. Too low an oil level can damage the pump, while too high an oil level can cause the oil pipe to burst or the seal to fail instantly.
While checking the oil level, it is also necessary to observe the quality of the hydraulic oil. Normal hydraulic oil should appear transparent or semi transparent light yellow. If the oil becomes black, turbid, or contains metal shavings, timely measures should be taken. These details often provide early warning of potential equipment failures.
The maintenance of hydraulic oil is not limited to oil level inspection. Regular replacement of hydraulic oil is a necessary measure to maintain the normal operation of the system. Generally speaking, hydraulic oil needs to be replaced every 1000-2000 hours of operation or once a year, and the specific interval should be determined according to the equipment usage environment.
Keeping the oil clean is equally important. Special cleaning tools should be used during refueling to avoid impurities and moisture from entering. At the same time, it is necessary to replace or clean the hydraulic oil filter element in a timely manner to ensure the effective operation of the filtration system. Different equipment and seasons should also choose the corresponding brand of hydraulic oil, and avoid mixing different brands and models of oil.
Pay close attention to the working status of the hydraulic system in daily operations, including working pressure, abnormal noise, and oil temperature changes. Regular hydraulic oil analysis can scientifically determine the condition of the oil and achieve preventive maintenance.
In practical operation, special attention should be paid to avoiding some common misconceptions. Different brands of hydraulic oil must not be mixed, as this may cause chemical reactions and lead to a decrease in oil performance. At the same time, it is important to avoid the practice of only supplementing without replacing, as additives in the oil will gradually become ineffective over time.
Also pay attention not to ignore the abnormal phenomena such as oil color darkening and foam increasing, which are often the precursors of system problems. More importantly, it is absolutely not advisable to continue operating the equipment when the oil level is too low for convenience, as this can cause serious damage to the hydraulic system.
The normal operation of hydraulic systems is the basic guarantee for efficient operation of engineering machinery equipment. Through standardized hydraulic oil level checks and scientific maintenance measures, not only can the service life of equipment be significantly extended and work efficiency improved, but maintenance costs and downtime losses can also be significantly reduced. Remember the operation mnemonic of "stop steadily on flat ground, level the bucket, straighten the frame, and keep the oil level above the middle", cultivate regular inspection and maintenance into a good working habit, and keep your equipment in efficient working condition at all times.
Maintenance of engineering machinery equipment needs to start from small details and pay attention to every detail. Mastering the correct hydraulic oil level inspection and maintenance methods is not only an investment in equipment, but also a guarantee for safety production. I hope that through the introduction in this article, it can help you better safeguard the "lifeline" of your equipment and lay a solid foundation for creating greater value.
