1. If various parts such as fuel filter, oil filter, air filter, hydraulic oil filter and filter are dirty, the filtering effect will be deteriorated, too much impurities will enter the oil cylinder, parts will be worn out, and the possibility of failure will be increased. If there is a serious traffic jam, it will also cause the vehicle to not work properly. The radiator water tank, air-cooled engine cylinder block and cylinder head radiator, the radiator cooling part is too dirty, it will cause poor heat dissipation, and the temperature is too high. Therefore, for this "afraid of dirty parts, it must be cleaned and maintained.

      2. The piston temperature is too high, which is easy to cause overheating and burnout, the cylinder; rubber seals, V-belts, tires and other overheating, easy to premature aging, performance degradation, shortened service life, starter, generator, controller and other electrical coils Overheating, easy to burn and scrap; vehicle bearings should be maintained at a proper temperature, such as overheating, the lubricating oil will be very fast, eventually causing the bearing to burn and the vehicle to be damaged.

     3. The matching parts of various diesel engine fuel systems, the master-slave movement in the drive axle, the final reducer gear, the hydraulic control valve and valve stem, the valve core and valve hydraulic steering device set, etc., these couples are manufactured together through special processing, grinding Made, and precisely, used in pairs during life are always used in pairs and are not interchangeable. Mutual cooperation, such as piston and cylinder liner, bearing and journal, valve and valve seat, large-end ceramic tile and shaft, etc., after a period of running-in effect, compared with better cooperation, in maintenance, attention should also be paid to assembling in pairs, not "access".

      4. The engine cylinder gasket cannot be installed incorrectly, otherwise it will cause premature ablation damage to the cylinder gasket; for some special shapes of piston rings and misplacement, they should be assembled according to the requirements of different models, and the engine fan blades also have directions when installing Requirements, fan exhaust and suction are two general points, not the other way around, otherwise it will lead to poor heat dissipation, high engine temperature, tire pattern and direction, such as herringbone pattern tires, the ground sign after installation should point to the herringbone tip rear to ensure maximum driving force. Two tires and different models have different needs, an optional installation.

      5. In vehicle maintenance, some small packages may be inadvertently, and even some people think that clothes instead of bags are not important, which is very dangerous and harmful. Engine air locks, should be installed in pairs, such as packing or missing will cause the piston valve to lose control, crash, etc.; engine connecting rod bolts, flywheel bolts, shaft bolts to install cotter pins, locking screws, locks, etc. Once packed, it may lead to serious failures in use; engine timing gear chamber for gear oil lubrication nozzles After packing, can cause serious oil leakage, oil pressure is too low, water tank caps, oil caps, caps are missing, which can allow sand And dust intrusion, aggravate the wear of some parts.

      6. The engine is filtered by dry air filter paper, which has strong hygroscopicity, such as oil, which can easily lead to a higher level of air mixture inhalation into the cylinder, insufficient air volume, increase and decrease of fuel consumption and engine power. Diesel engines may lead to "flying high-pressure cleaning vehicle manufacturers" ;If the V-belt is on oil, it will accelerate the aging corrosion, and at the same time it is easy to slip, resulting in the reduction of transmission efficiency; if the brake shoe, dry clutch friction plate and brake belt are oily, it is easy to slip, which will threaten the poor. To drive safely; starter motor and generator carbon brush, oil pollution is due to poor contact starter motor capacity is insufficient, the generator voltage is too low. Tires and rubber are sensitive to corrosion oil, which can make the rubber soft contact with oil or peel off, and contact with the tire for a short time will cause abnormal damage to the tire, or even serious damage.

      7. Some early drivers or beginner repairers may think that all parts need to be cleaned. In fact, this understanding is one-sided. When clearing the dust on the paper air filter engine, do not use any oil to clean it, just blow it gently or blow the high-pressure air filter from the inside to the outside; the leather part should not be cleaned with oil, and wipe it with a clean cloth.

      8. If the tire store is stored for a long time, do not store it in time, it will be deformed due to extrusion, which will affect the service life; air filter, fuel filter paper filtration, such as extrusion, will produce large deformation and unreliable Filtering effect; rubber oil seals, V-belts, oil pipes, etc. can not be squeezed, otherwise deformation will also occur, affecting normal use.

      9. Rubber products such as tires, V-belts, cylinder liner water-blocking rings, rubber oil seals, etc., if they are close to the fire, it is easy to deteriorate or damage, and on the other hand, it may also cause fire accidents. Especially for some diesel high-pressure cleaning vehicle manufacturers, it is difficult to start the cold winter. Some pilot burners are commonly used for heating, and it is necessary to prevent burning out the circuit, oil, etc.

      10. Parts should be used for one-time use, but individual drivers or machinery do not understand the "taboo" and reuse, which is easy to cause accidents. Generally speaking, engine connecting rod bolts, nuts, imported diesel injector fixing bolts, cylinder liner water ring, sealing copper gasket, various oil seals, sealing rings, pins are important parts of the hydraulic system, cotter pins, etc. The removed parts must be replaced with new products, engine cylinder gaskets, although not found during maintenance, there are also better replacement products, because the old products have poor elasticity, poor sealing, easy to damage ablation, long-term use also needs to be changed, Time consuming, so if you have any new product it is best to try to change it.