What are the main maintenance items in automobile maintenance?
I. Oil and oil filter
Mainly used for the maintenance of lubrication system. The main function of lubrication system is to effectively lubricate all parts of automobile engine and prevent excessive wear. The function of oil filter is to remove all kinds of impurities in oil and ensure the normal operation of lubrication system. When changing the oil, replace the oil filter.
Second, the air filter element
The function of the air filter element is to filter the air before it enters the cylinder, so as to remove impurities, dust, sand and other foreign bodies entrained in the air. The cleaning and maintenance of air filter depends on the use environment. The gasoline filter element is generally replaced when driving to 20000-25000km.
Third, the spark plug
Wear parts of spark plugs shall be replaced every 20,000 kilometers. In addition, brake fluid, transmission oil, battery, throttle, fuel injector, brake pad and other components are all inspection items during daily maintenance, and are maintained and maintained according to the usage.
Extended data:
Contents of minor maintenance:
Minor maintenance generally refers to routine maintenance items to ensure the performance of the vehicle after driving a certain distance within the time or mileage specified by the manufacturer. It mainly includes replacing oil and oil filter.
Interval of minor maintenance:
The time for minor maintenance depends on the effective time or mileage of the oil and oil filter used. Different brands of mineral engine oil, semi-synthetic engine oil and whole synthetic engine oil have different validity periods, please refer to the manufacturer's recommendation. Oil filters are generally divided into conventional oil filters and long-acting oil filters. The conventional oil filter is replaced by oil, and the long-acting oil filter has a longer service life.
Supplies in minor maintenance:
1, engine oil is the lubricating oil for engine operation. It can play the role of lubrication, cleaning, cooling, sealing and reducing engine wear. It is of great significance to reduce the wear of engine parts and prolong the service life.
2. The oil filter is a component used to filter oil. Engine oil contains a certain amount of colloid, impurities, moisture and additives; In the process of engine operation, metal chips, impurities in the inhaled air, oil oxides, etc. generated by the friction of various components. Are the targets of oil filter. If the oil directly enters the oil circuit without filtering, it will have an adverse impact on the performance and life of the engine.
Contents of major maintenance:
Major maintenance refers to the routine maintenance of replacing oil and oil filter, air filter and gasoline filter within the time or mileage specified by the manufacturer.
Time interval for major maintenance:
Large maintenance is based on the existence of small maintenance. Generally, these two kinds of maintenance are carried out alternately. Different car brands have different intervals. Please refer to the manufacturer's suggestion for details.
In addition to changing the oil and oil filter, there are the following two items in car maintenance:
1, air filter
When the engine is working, it will inhale a lot of air. If the air is unfiltered, the dust in it will accelerate the wear of piston group and cylinder. Larger particles entering between the piston and the cylinder will also cause serious "cylinder pulling" phenomenon. The function of the air filter element is to filter out the dust and particles in the air and ensure that enough clean air enters the cylinder.
2. Gasoline filter
The function of gasoline filter is to provide clean fuel for the engine and filter out moisture and impurities in gasoline. So as to optimize the performance of the engine and provide the best protection for the engine.
Usually, when carrying out car maintenance, the operator will do other inspections according to the specific situation of the car, and other maintenance items will be added, such as inspection and cleaning of engine-related systems, positioning inspection of tires, inspection of fastening parts and so on.
References:
Baidu encyclopedia-auto maintenance