Common sense of automobile maintenance are: afraid of “dirty”, afraid of “hot”, afraid of “string”, afraid of “anti-”, afraid of “lack of”, afraid of ‘oil’, afraid of ‘wash’, afraid of ‘pressure’, afraid of” Near fire”, afraid of ‘repeat’ and so on.

Common sense of automobile maintenance are: afraid of “dirty”, afraid of “hot”, afraid of “string”, afraid of “anti-”, afraid of “lack of”, afraid of ‘oil’, afraid of ‘wash’, afraid of ‘pressure’, afraid of” Near fire”, afraid of ‘repeat’ and so on.

1, afraid of “dirty”

Fuel filters, oil filters, air filters, hydraulic oil filters and various types of filters and other parts if too dirty will lead to poor filtering effect, too many impurities into the oil cylinder, exacerbating the wear and tear of the parts, increasing the likelihood of failure; if the serious clogging, it will also lead to the vehicle can not work properly.

2, afraid of “heat”

Engine piston temperature is too high, easy to cause overheating melting and hold cylinder; rubber seals, triangular tape, tires and other overheating, easy premature aging, performance degradation, shorten the service life; starter, generator, regulator and other electrical equipment coil overheating, very easy to burn and scrap; vehicle bearings should be kept at the appropriate temperature, such as overheating, will make the lubricating oil deteriorate very quickly, and ultimately lead to bearing burnt out, the vehicle is damaged.

3, afraid of “string”

Diesel fuel system in a variety of coupling, drive axle main reducer within the master-slave gears, hydraulic manipulation valve block and valve stem, hydraulic steering valve spool and valve sleeve, etc., these with the coupling in the manufacture of special processing, grinding into pairs and become, with a very precise, in the use of the life of the use of the pairs of always use, do not interchangeable. Some of the mating parts, such as the piston and cylinder liner, axial tile and journal, valve and valve seat, connecting rod big head tile cover and rod body, after a period of time, the role of friction, relatively good with the maintenance, should also pay attention to the pair assembly, do not “string door” each other.

4, afraid of “anti”

Engine cylinder gasket in the installation can not be installed in reverse, otherwise it will lead to premature damage to the cylinder gasket erosion; some special shapes of the piston ring can not be installed in reverse, should be assembled according to the requirements of different models; engine fan blade installation also has the direction of the requirements of the fan is generally divided into two kinds of exhaust and suction, can not be made in reverse, otherwise it will lead to poor engine heat dissipation, high temperatures; on the direction of the pattern of the tire, such as herringbone pattern For tires with directional patterns, such as herringbone pattern, the ground marks after installation should make the herringbone tip point to the rear to ensure maximum driving force. For the parallel mounted two tires, different models also have different requirements, can not be installed at random.

5, afraid of “missing”

In the maintenance of vehicles, some small parts may be negligent and missed, and even some people think that it does not matter what is installed and not installed, which is very dangerous and harmful. Engine valve locking piece, should be installed in pairs, such as leakage or missing will lead to the valve out of control and hit the piston and other pieces; engine connecting rod bolts, flywheel bolts, drive shaft bolts installed on the cotter pins, locking screws, insurance tablets or popping arrows such as pads and other anti-loosening devices, once the leakage of installing, in the use of the engine will likely lead to serious failures; engine timing gear room used to lubricate the gears of the oil nozzles once the leakage of installing, it will lead to The serious oil leakage, so that the engine oil pressure is too low; water tank cover, oil port cover, fuel tank cover is lost, will make gravel, dust and other intrusion, aggravate the wear and tear of parts.

6, afraid of “oil”

Engine dry air filter paper filter, hygroscopicity is strong, such as stained with oil, easy to make the concentration of higher mixture inhaled into the cylinder, so that the air volume is insufficient, increased fuel consumption, engine power decline, diesel engines may also cause “flying car”; if the triangle tape stained with oil, it will accelerate its corrosion and aging, and at the same time prone to slipping, resulting in a reduction in transmission efficiency; brake tape stained with oil, will accelerate its corrosion aging, and easy to slip, resulting in Transmission efficiency is reduced; brake shoes, dry clutch friction plate, brake band, etc., if stained with oil, easy to slip, poor work, thus threatening the safety of driving; starter motor and generator carbon brush, etc., stained with oil is due to poor contact will lead to the starter motor power, generator voltage is too low. Tire rubber corrosion of oil is very sensitive, and oil contact will make the rubber soften or peeling, short-term contact will lead to abnormal damage to the tire or even serious damage!

7, afraid of “wash”

Some of the first time driving or beginner repair personnel, may think that all spare parts need to be cleaned, in fact, this understanding is one-sided. For the engine's paper air filter, in removing the dust on it, you can not use any oil cleaning, just gently beat or high pressure air from the filter element inside to outside can be blown through; for leather parts, should not be cleaned with oil only need to use a clean rag can be wiped clean.

8, afraid of “pressure”

Tire tires if the long-term storage of pressure and do not turn in a timely manner, will be deformed due to extrusion, affecting the service life of air filters, fuel filters, paper filters, such as extrusion, will produce a large deformation and can not be reliably play the role of filtration; rubber oil seals, triangular tape, tubing, etc. can not be extruded, otherwise the same will be deformed, affecting the normal use of the.

9, afraid of “near fire”.

Tires, tape, cylinder