How to maintain a special car
When it comes to why special vehicles are to be maintained, we must start with the difference and relationship between the maintenance and repair of special vehicles.
First, the relationship between maintenance and repair
Special-purpose vehicle maintenance and special-purpose vehicle repair are closely related. There is maintenance during repairs and repairs during maintenance. In the course of vehicle maintenance, it may be found that a certain part or component will be a precursor to failure or damage, so that it can be repaired by utilizing the maintenance timing. In the course of repairs, it is natural to perform maintenance on some undamaged parts.
Therefore, the relationship between special-purpose vehicle maintenance and special-purpose vehicle repair is dialectical. In daily activities, we must handle the relationship between the two, insist on maintenance as the focus, and overcome the bad tendency of “renovating light protection†and “repairing and substituting for protectionâ€. "Three points of cultivation and seven points of raising" is the reason.
The special vehicle maintenance center aims at the current situation in the special vehicle maintenance industry and scientifically divides the special vehicle maintenance system into six major parts, and can specially maintain the following six major systems.
First, the deepening of the lubrication system
The main function of the lubrication system is to effectively lubricate all parts of the engine of the special vehicle to prevent excessive wear. Under normal circumstances, special vehicles need to be cleaned and maintained every 5000km-10000km. When the engine noise is too loud, acceleration is weak, and the water temperature is too high, it must be cleaned and maintained once. The sludge and other deposits inside the engine are cleaned to avoid oxidation thickening of the engine oil at high temperature, to reduce the wear of engine components, prolong engine life, and increase engine power.
Second, the gearbox cleaning and maintenance (automatic gearbox)
Under normal circumstances, the special vehicle will be cleaned and maintained once every 800km-1000km, or it will be cleaned and maintained once the gearbox slips, the water temperature is too high, the shift is slow, and the system leaks. Removes harmful sludge and paint deposits, restores the elasticity of gaskets and O-rings, smoothes the gear shifts, increases power output, and completely replaces old automatic transmission fluids.
Third, the cooling system cleaning and maintenance
Under normal circumstances, special trucks should be cleaned and maintained once in winter and summer, and cleaned and maintained once every 6 months to 8 months during normal driving, or when the water temperature is too high, water leaks, and the pot is cleaned and maintained once. Remove traces and scales that cause the engine to overheat, prevent harmful corrosion, prevent and stop leaks in seals and tanks, and completely replace old coolant.
Fourth, the fuel system cleaning and maintenance (ie, cleaning nozzles, valve carbon deposition)
Under normal circumstances, special vehicles need to be cleaned and maintained once every 800km-1000km, or when you find that the engine is shaking, lagging and accelerating, black smoke, powerless, and oil-consuming. Remove colloidal and carbon deposits inside the system to prevent harmful corrosion, prevent and stop leakage of seals and tanks, and completely replace old coolant.
Fifth, the brake system cleaning and maintenance
The special car is cleaned and maintained once every 800km, or the ABS reaction is too early and the cleaning and maintenance time is too slow. Remove the harmful oil paint film from the system, eliminate the danger of work failure at ultra-high temperature or ultra-low temperature, effectively prevent the brake fluid from deterioration, and completely replace the old brake fluid.
Six, power steering system cleaning and maintenance
Special vehicles need to be washed once every 1000km-2000km, or in case of steering system leakage. After replacement of power steering accessories, they must also be cleaned and maintained once. Remove the harmful sludge and paint film from the system, remove the difficulty in steering at low temperatures, stop and prevent the leakage of the power steering fluid, remove the steering noise, and completely replace the old brake steering fluid.
Second, the difference between maintenance and repair
(1) Operational technical measures are different. Maintenance is mainly based on planned prevention, and it usually takes compulsory operations. Repairs are performed as required by the plan.
(2) Working hours are different. Maintenance is usually performed before the vehicle fails. Repairs are usually performed after the vehicle fails.
(3) The purpose of the job is different. Maintenance is usually to reduce the wear rate of parts, to prevent failures, and to extend the service life of special vehicles. Repairs usually repair the parts or assemblies that have malfunctioned or lost their working ability, restore the good technical condition and working ability of special vehicles, and prolong their service life.
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