A loader needs to be well maintained to run smoothly

Prevent the influence of mechanical impurities

Mechanical impurities generally refer to non-metallic substances such as dust and soil, as well as some metal shavings and wear products produced by the equipment itself during the operation of construction machinery.

Once these impurities enter the interior of the machinery and reach the mating surfaces of the machinery, the harm is very great. They not only cause the relative motion to be blocked, accelerating the wear of parts, but also scratch the mating surfaces, damage the lubricating oil film, and cause the temperature of the parts to rise and the lubricating oil to deteriorate.

It has been measured that when the mechanical impurities in the lubrication increase to 0.15%, the wear rate of the first piston ring of the engine will be 2.5 times greater than the normal value. When impurity particles enter the rolling shaft, its service life will be reduced by 80% to 90%.

Tip: First, use high-quality, matching original factory parts, lubricating oil and grease to block the source of harmful impurities. This is particularly important for loaders operating in harsh and complex environments.

Second, it is necessary to do a good job in mechanical protection at the work site to ensure that the corresponding mechanisms can operate normally and prevent various impurities from entering the interior of the machinery. For malfunctioning machinery, it is advisable to have it repaired at a regular repair site as much as possible. When conducting on-site repairs, protective measures should also be taken to prevent the parts to be replaced from being contaminated by dust and other impurities before entering the machinery.

2. Reduce various corrosive effects

The phenomenon where the surface of a metal is damaged due to chemical or electrochemical reactions with the surrounding medium is called corrosion. This corrosive effect not only affects the normal operation of mechanical surface equipment, but also corrodes the internal components of the machinery. Rainwater, chemical substances in the air, etc. can enter the interior of mechanical parts through external channels, gaps, etc., corroding the interior of mechanical parts, accelerating mechanical wear and increasing mechanical failures. Because this corrosive effect is sometimes invisible and intangible, it is easily overlooked by people, but its harmfulness is even greater.

Tip: During use, management and operation personnel should take effective measures based on the local weather conditions and air pollution situation at that time to reduce the impact of chemical corrosion on the machinery. The key is to prevent the influence of rainwater and chemical components in the air on the machinery.

3. Reduce the influence of temperature

During the operation, each component has its own normal temperature range. For instance, the temperature of antifreeze in general power machines is 80-90℃, and the temperature of hydraulic oil in hydraulic systems is 40-70℃, etc. Tests show that the main transmission gears and bearings of various construction machinery wear out 10 to 12 times more when operating in lubricating oil at -5℃ than when operating in lubricating oil at 3℃. However, when the temperature is too high, it will accelerate the deterioration of the lubricating oil.

Tip: First, prevent overloading operation at low temperatures. During the use of the loader, ensure the normal operation of the low-speed preheating stage, and only drive or work after the engine reaches the specified temperature. Do not neglect its important role just because no problems occur on site.

Second, it is necessary to prevent the machinery from operating at high temperatures. During the operation of the machinery, the values on various thermometers should be frequently checked. If any problems are found, the machine should be stopped immediately for inspection and any faults should be promptly eliminated. For cases where the cause cannot be identified for the time being, the machinery must not be allowed to operate while faulty without any treatment.

Thirdly, it is necessary to pay attention to checking the working condition of the cooling system. In daily work, it is necessary to check before starting work every day, add antifreeze in time, clean the dust on the cooling system regularly, and ensure the unobstructed heat dissipation air ducts.