1. Afraid of "dirty"
If the parts such as fuel filter, oil filter, air filter, hydraulic oil filter and various filters are too dirty, the filtering effect will become worse, and too many impurities will enter the oil circuit cylinder, aggravating the wear of parts and increasing the possibility of failure; If it is blocked seriously, the vehicle will not work normally Dirty radiator of water tank, radiator of cylinder block and cylinder head of air-cooled engine, radiator of cooler and other parts will lead to poor heat dissipation and excessive temperature Therefore, such "dirty" parts must be cleaned and maintained in time
2. Fear of "heat"
Температура клипа мотора је превисока, што је лако изазвати прегревање и топљење и задржавање цилиндра; Гумене заптивке, троугласте траке, гуме итд. се прегревају, што лако прерано стари, смањује перформансе и скраћује радни век; Завојница стартера, генератора, регулатора и друге електричне опреме је прегрејана, која се лако спаљује и распада; Лежај возила треба да се одржава на одговарајућој температури. Ако се прегреје, уље за подмазивање ће се брзо покварити, што ће на крају довести до сагоревања лежаја и оштећења возила
3. Afraid of "string"
Various coupling parts in the fuel system of diesel engine, the driving and driven gears in the main reducer of the drive axle, the hydraulic control valve block and valve stem, the valve core and valve sleeve in the full hydraulic steering gear, etc. These matching coupling parts are specially processed and ground in pairs during manufacturing. The matching is very precise. They are always used in pairs within the service life and must not be interchanged Some mutually matched parts, such as piston and cylinder liner, bearing bush and journal, valve and valve seat, connecting rod big end pad cover and rod body, have a relatively good fit after running in for a period of time. During maintenance, pay attention to assembly in pairs and do not "visit" each other
4. Fear "anti"
Заптивка цилиндра мотора се не може поставити обрнуто током уградње, иначе ће изазвати прерану аблацију и оштећење заптивке цилиндра; Неки клипни прстенови са посебним облицима не смеју се уграђивати обрнуто, већ ће се монтирати према захтевима различитих модела; Такође постоје захтеви за усмерење за уградњу лопатица вентилатора мотора. Вентилатор је генерално подељен на издувни и усисни, који се не могу преокренути, иначе ће довести до лошег одвођења топлоте и превисоке температуре мотора; За гуме са усмереном шаром, као што су гуме са шаром рибље кости, ознака земље након уградње треба да учини да врх рибље кости буде окренут уназад како би се обезбедила максимална погонска сила. За две гуме постављене заједно, различити модели такође имају различите захтеве и не могу се инсталирати по вољи
5. Fear of "lack"
When repairing the vehicle, some small parts may be omitted due to negligence, and some people even think it doesn't matter whether they are installed or not, which is very dangerous and harmful Engine valve keys shall be installed in pairs. If they are missing or missing, the valve will lose control and damage the piston and other parts; The cotter pin, locking screw, safety plate or spring pad and other locking devices installed on the engine connecting rod bolt, flywheel bolt and transmission shaft bolt may lead to serious faults in use once they are omitted; Once the oil nozzle used to lubricate the gear in the engine timing gear chamber is missing, it will lead to serious oil leakage and low engine oil pressure; The loss of water tank cover, oil port cover and oil tank cover will invade sand and dust and aggravate the wear of all parts
6. Afraid of "oil"
The paper filter element of engine dry air filter has strong moisture absorption. If it is stained with oil, it is easy to suck the mixture with high concentration into the cylinder, resulting in insufficient air, increased fuel consumption and reduced engine power. The diesel engine may also cause "flying car"; If the triangular tape is stained with oil, it will accelerate its corrosion and aging, and slip easily, resulting in the reduction of transmission efficiency; If the brake shoe, friction plate and brake belt of dry clutch are stained with oil, it is easy to slip and work poorly, thus threatening driving safety; Greasy dirt on the starting motor and generator carbon brush will lead to insufficient starting motor power and low generator voltage due to poor contact Tire rubber is very sensitive to oil corrosion. Contact with oil will soften or peel the rubber. Short time contact will lead to abnormal damage or even serious damage to the tire
7. Afraid of "washing"
Some novice drivers or repairmen may think that all parts need cleaning. In fact, this understanding is one-sided For the paper air filter element of the engine, when removing the dust on it, you can't clean it with any oil. Just tap it gently with your hand or blow the high-pressure air from the inside to the outside of the filter element; Leather parts should not be cleaned with oil, but only with a clean rag
8. Fear of "pressure"
Ако се кућиште гуме дуго складишти под притиском и не окреће се на време, деформише се услед екструзије и утиче на век трајања; Ако се папирни филтерски елемент филтера за ваздух и филтера за гориво стисне, то ће произвести велику деформацију и не може поуздано играти улогу филтрације; Гумена уљна заптивка, троугласта трака и уљна цев се не смеју екструдирати, иначе ће се такође деформисати и утицати на нормалну употребу
9. Fear of "near fire"
Гумени производи као што су гуме, троугласта трака, прстен за заустављање воде на цилиндру и гумена уљна заптивка, ако су близу извора ватре, лако ће се старети, покварити или оштетити. С друге стране, они такође могу изазвати пожарне несреће. Конкретно, неке дизел аутомобиле је тешко покренути по великој хладноћи зими. Неки возачи често користе лампу да их загреју. Морамо спречити запаљене водове, уљна кола итд
10. Afraid of "Repetition"
Some parts should have been used once, but some drivers or repairmen reuse them for saving or because they don't understand the "taboo", which is very likely to lead to accidents Generally speaking, the engine connecting rod bolts, nuts, fixing bolts of imported diesel engine fuel injector, cylinder liner water blocking ring, sealing copper gasket, various oil seals and sealing rings of hydraulic system, as well as pin pieces and split pins at important parts must be replaced with new ones after disassembly; For the engine cylinder gasket, although no damage is found during maintenance, it is best to replace it with a new one, because the old one has poor elasticity, poor sealing and easy ablation damage. It needs to be replaced after a short time of use, which is time-consuming and laborious. Therefore, if there is a new one, it is better to replace it as much as possible