1.1. Daily maintenance contents Visual inspection Before leaving the car, look around the car to see if there is any damage to the lighting device, whether the car body is inclined, whether there is any leakage, leakage, etc.; check the appearance of the tire; check the door, engine compartment cover, and cover And the condition of glass. Signal device check Turn on ignition switch key (do not start the engine), check the lighting of each warning light and indicator light, start the engine to check whether each warning light goes out normally and the indicator light is still on. Fuel Check Check the gauge's instructions to supplement the fuel. 1.2. Weekly maintenance content The tire pressure check adjusts the tire pressure and cleans up the debris on the tire. Don't forget to check your spare tire. Engine and various fluids Check the fixing of various parts of the engine. Check whether there is any leakage or leakage of the engine joint surface. Check and adjust the tightness of the belt. Check the fixing of the pipelines and wires in various parts. Check the oil supply. Supplement the coolant; check the supplementary electrolyte; check the supplementary power steering oil; clean the radiator surface; Clean and clean the interior of the car and clean the exterior of the car. 1.3. Monthly maintenance contents Inspect the car externally, check the damage of the lamp and lampshade, check the fixing of the car body accessories, and check the condition of the reversing mirror. Tires Check the wear of the tires and clear the luggage compartment. When you approach the tire's wear mark, you should replace the tires to check if the tires have bulges, abnormal main wear, aging cracks, and hard injuries. Clean waxing thoroughly cleans the interior of the car; clean the exterior of the tank, the exterior of the oil radiator, and the debris on the exterior of the air conditioner radiator. Chassis inspection chassis there is no oil leakage phenomenon, found that there are traces of oil leakage, should check the gear oil of each assembly and make appropriate replenishment, all the nozzles on the chassis to fully replenish grease operation. Other carefully repeated weekly maintenance content. 1.4. Maintenance contents every six months The exterior of the engine is cleaned by the engine, and the water-repellent treatment of the electrical parts is to be observed during cleaning. If the electrical part has a high requirement for waterproofing, the high-pressure, high-temperature water gun should be avoided from flushing the engine. You can use a brush to dip the cleaning agent to clean the engine's appearance. The distributor wipes the dirt in the distributor cap with a clean rag, removes dirt from the distributor contacts, eliminates traces of contact erosion, checks high-speed contact gaps or pole gaps in the electronic ignition system, and lubricates the distributor Each lubrication point. The third filter oil uses compressed air to blow off dust from the air cleaner; timely replacing the fuel filter and cleaning the strainer of the pipe joint; replacing the oil and oil filter. For domestic cars, the oil filter, fuel pre-filter and centrifugal fine filter should also be cleaned. The battery inspects the battery terminal part for corrosion. Rinse the battery with hot water to remove the corrosion from the battery terminal. Measure and adjust the electrolyte proportion of the battery. Coolant Check for supplemental coolant and clean water tank appearance. Tire wheels check the wear of the tire and perform transposition on the tire. Check the hub and bearing preload conditions. If there is a gap, adjust the preload. Check the brake system to adjust the working stroke of the hand brake lever; check and adjust the shoe clearance of the drum hand brake; check the free travel of the brake foot of the adjustment foot; check the wear of the brake shoe, and replace the brake shoe if the wear indicator is reached. Check the wheel brake shoe clearance; check for additional brake fluid. Tightening Check the tightness of important bolts or spirals of the chassis, especially the important bolts and spirals of the steering system. If any loose or defective parts are found, tighten them tightly. Chassis check the chassis of each part of the situation, check for leaks, check the fastening of all metal connecting rods, and check the rubber bushings are not damaged, all the lubrication points of the chassis grease lubrication. Light inspection to repair car lights, check maintenance refrigeration, heating devices, clean sound system and so on. 1.5. Annual maintenance content Ignition timing check Adjust the ignition timing of the car engine. Check and adjust the fuel supply timing of the diesel engine to the repair shop. For valve clearances equipped with common valve engines, high-speed valve clearances should be checked. Clean lubrication Lubricate the hinges of the engine compartment lid, door and luggage compartment, and re-adjust and lubricate the above mechanisms. 1.6. Maintenance contents every two years The antifreeze antifreeze has a general service life of two years. At that time, the antifreeze should be replaced during the annual maintenance and the cooling system must be thoroughly cleaned. Braking system Due to the hygroscopic nature of the brake system, brake fluid is changed every two years. Post-holiday car care knowledge The use of appropriate grades of lubricating oil for the car engine should be based on the additional device into the exhaust and the use of conditions to select the appropriate engine oil; diesel engine diesel engine must be based on the mechanical load selected special engine oil, the selection criteria are not lower than the engine operating conditions shall prevail. In addition, depending on the ambient temperature, choose an oil of the appropriate viscosity grade. Regular oil change of any quality grade of lubricating oil will occur during use. After a certain mileage or a certain period of time, the performance deteriorates and the required components are lost, causing various problems to the engine. In order to avoid the occurrence of failure, the oil should be changed regularly in combination with working conditions and working hours. Maintaining a normal oil level will not only accelerate engine oil deterioration, but also cause damage to components due to lack of oil. Conversely, if too much oil is pumped up, it will burn into the combustion chamber from the gap between the cylinder and the piston, causing the product to accumulate on the piston. More carbon. General car oil scales are engraved with the sign of the lower limit and the upper limit, when refueling, it is advisable to visually measure between the two. When changing the oil, the oil must have a high viscosity at a high oil temperature. The viscosity of the oil is small, and the oil easily flows out of the oil port. Degraded substances in the oil are suspended and dispersed, and are easily discharged out of the engine together with the oil. Keeping the crankcase well-ventilated The gases that are drawn from the combustion chamber to the crankcase are corrosive, which can cause the engine oil to oxidize and deteriorate, contaminate the engine, and increase the crankcase pressure. Most gasolines are now equipped with PCV valves (crankcase forced ventilation) to encourage engine air changes. However, contaminants in the helium can deposit around the PCV valve and can clog the valve. If the PCV valve is clogged, excessive combustion by-products are forced into the crankcase and the pressure rises. The oil penetrates into the combustion chamber, causing burning of the oil. This also increases the piston's resistance to downward movement, and further causes the crankcase to become contaminated, resulting in fuel. Consumption increases. Therefore, regular maintenance of the PCV is required to eliminate contaminants around the PCV valve. Always maintain the air filter The air filter should always be kept clean and replace the filter element in time. If the filter is clogged or damaged, it will be incompletely inhaled due to insufficient air inhalation, and sand and Chen’s cavities will directly inhale into the engine, causing strain on the cylinder wall. Regularly changing the oil filter oil. When the fine pores of the filter pass through, the solid particles and viscous substances in the oil accumulate in the filter. If the filter is blocked and the oil cannot pass through the filter element, it will burst the filter element or open the safety valve. Passing through the bypass valve will still bring the waste back to the lubrication area, aggravating wear and internal pollution. The crankcase engine is periodically cleaned. During operation, the unburnt gas, acid, moisture, sulfur and nitrogen oxides produced by the helium in the combustion chamber enter the crankcase and mix with the metal powder produced by the wear of the components to form sludge. When the amount is small, it will be suspended in the oil. When the amount is large, it will precipitate out of the oil and block the oil hole of the filter, causing the engine to be difficult to lubricate and cause serious wear. In addition, when the oil oxidizes at high temperatures, a film of paint and carbon deposits are formed on the piston ring, which causes the engine oil consumption to increase and the power is reduced. In severe cases, the piston ring is stuck and the cylinder is pulled. Therefore, the crankcase is periodically cleaned to keep the interior of the engine clean. Regular cleaning of the fuel system During the combustion of fuel through the oil circuit into the combustion chamber, inevitably colloids and carbon deposits are formed, which are deposited in the oil passages, injectors, and combustion chambers, interfering with fuel flow and destroying the normal combustion ratio. , Poor fuel atomization, resulting in engine vibration, knock, idling instability, poor acceleration and other performance issues. Regularly clean the fuel system and control the generation of carbon deposits to keep the engine in top condition at all times. Regular maintenance of water tank engine tank rust, scaling is the most common problem. Rust and scale can limit the flow of coolant in the cooling system, reduce heat dissipation, cause the engine to overheat, and even cause damage to the engine. Coolant oxidation will form acidic substances, corrosion tanks and water jackets, causing tank damage, leakage. Cleaning the water tank regularly to remove rust and scale can not only ensure the normal operation of the engine, but also extend the overall life of the tank and engine. Vehicles experience symptoms more or less after several days of storms and long jolts, just as people experience discomfort after being overworked. After the end of the festival and the return of the journey, we need to test the following seven parts of the car. Check appearance and finish The appearance mentioned here includes the body surface and all the parts that you can see. Due to high speed driving, it is difficult to avoid bumping the small stones on the road surface, causing damage to the paint. At this time, the method of inspection is to thoroughly rinse the vehicle, and then wrap it around the vehicle for two rounds to observe whether the paint is scratched or not. Other parts have no damage. After checking the tires after long-distance running, some wheels may show obvious scars, excessive wear or "trauma". According to the specific circumstances, you can choose to replace the spare tire and go to the 4S shop for further inspection. In addition, after a long bump, the positioning of the tire may fail, and the most significant feature at this time is that the vehicle will experience vehicle deviation and beating. If this happens, it will also need to go to the 4S shop for inspection. Check engine oil Generally speaking, the lack of oil after long-distance driving is a relatively common phenomenon. If you forget the previously added oil label, do not add new engine oil blindly, because the mixed use of different types of engine oil may cause adverse consequences. . Experts said that the correct approach is to clarify the original oil label and then select the same label to add. If your maintenance period is approaching, then simply replace the original engine oil and add new engine oil. Checking the internal components After a long journey, a component in the engine compartment needs to be checked. It is the “air filterâ€. If you are on the way more dust than in the city, then the air filter may adsorb excessive dust during this time, and if the dust enters the engine will cause the wear of various parts of the engine; such as the air filter is blocked It will cause the engine to feed poorly and the power will drop. So remove the air filter and check it is necessary. Check the brake system through the tire aluminum alloy steel ring to visually observe the surface of the brake disc. The surface of the brake disc is originally smooth. If there are obvious grooves, it may be that when the vehicle is driving on the gravel road, some small sandstones are stuck between the brake disc and the fender, and the surface of the brake disc is constantly rubbed, so the groove appears. . When this happens, the vehicle may behave as a "when it's awkward or awkward" when it is walking, and in some cases it will still hear screams. The owner of the inspection chassis can recall the experience of scraping the chassis during driving. At the same time, if there are obvious changes before and after the holiday of the car, if chassis abnormal sounds, steering wheel jitter, or the phenomenon of oily spots in the parking position of the vehicle are present, it indicates that the chassis has been damaged. This is because after the road surface scratches the chassis, some parts of the chassis are deformed, and in particular, the upper and lower swing arms and the left and right direction tie bars are easily deformed. Some minor scratches can also cause minor leaks in the oil sump or gearbox sump, all of which are problems that the owner himself cannot detect in a timely manner. It is recommended to go to the 4S shop to do professional chassis anti-rust care or spray paint to make a chassis "armor" in order to avoid future problems. China Wheel (Taishan) Co.,LTD , https://www.tcwwheels.com