Engine oil undergoes high temperature operation in the engine, its physical and organic chemical properties will change, and the physical properties will also change. If the engine runs for a long time, the residue in the oil will increase, which will increase mechanical parts damage to the excavator. Carry out regular vehicle cleaning of the excavator, component inspection and lubrication, and the replacement and repair of damaged parts. The key purpose is That is to say, in order to reasonably ensure the actual effect and excellent technical strength of the excavator in the work, prevent the occurrence of common failures caused by the loss of parts and components, and show an excellent guarantee for everyone's safety. So what serious harm will the excavator engine do not change the oil on time?
Hitachi excavator repair:
1. Failure to change the oil on time will cause a common failure of low vapor pressure. The immediate adverse effect of too low steam pressure is that it will cause semi-dry friction or dry friction in the middle of each of the cooperating components, the engine will have a significant noise, and when it is more serious, it will cause tile burning.
2. Failure to change the oil on time will cause the following problems to reduce the vapor pressure: too little oil storage, resulting in no oil stains or low oil in the intake system (including: circulation system intake system, centralized lubrication system, etc.);
Dirty or thick oil causes the oil pump to fail to pump the oil reasonably; the oil is thin or the oil becomes thin due to the high temperature of the engine, which leaks from the gaps in the friction of the engine. Maintenance of the old car of the excavator is during maintenance As for the total distance, components and parts dismantled from the car, all repairable shall be returned to the original factory after repair.
3. Failure to change the oil on time will also cause the problem of high vapor pressure. Excessively high steam pressure causes the gasoline filter element to be destroyed too early and causes carbon deposits (C) in the main cylinder of the engine. It will also reduce the service life of the engine.
Failure to change the oil on time will cause the following problems:
1. The viscosity of the engine oil is too high; the oil will become moldy and gelled, which will reduce the oil circulation;
The filter element or the oil passage is blocked. Failure to change the oil on time will also cause the problem of excessive sludge. The sludge is generally caused by the high pressure in the cylinder and the metal oxides of unignited steam, acid, water, sulfur and nitrogen entering the crankcase oil through the gap between the piston ring and the cylinder wall, and then the metal caused by damage to the parts. The powder mixed with each other, gradually accumulated, and then sludge was produced.
2. Failure to change the engine oil on time will cause the increase of sludge, and the increase of sludge will cause the filter element and the oil inlet to be blocked, which will cause the engine to be difficult to lubricate and increase the damage of the engine. If the oil is not changed on time, the more serious adverse effect is the damage to various mechanical parts of the engine (a basic type of ineffective parts), such as piston rods and cylinder liners. Once the piston rod and cylinder liner have problems, the equipment must be repaired, and repair is something that every cardholder is not willing to see. Lack of engine oil, excessive sludge in engine oil, and reduced engine oil characteristics) all cause serious damage to the cylinder liner and piston rod. If the oil is not changed immediately, most of the above problems will occur, so it is still very necessary to change the oil on time. Failure to change the oil on time will result in high temperatures. Said above
3. Failure to change the oil on time will result in too little oil storage, resulting in no oil stains or low oil in the intake system. At this time, every mechanical part of the engine will be in a semi-dry friction or dry friction state. The semi-dry friction or dry friction state will cause a lot of heat, and then promote the temperature to rise significantly. Excessive temperature will cause the cylinder head and engine block to deform or even be destroyed. If such a common failure occurs, the equipment is close to maintenance.
4. When the oil is changed, the oil filter element must be replaced separately. It is not only convenient and cost-effective to replace the oil filter element. What's going on? Because the dirt in the filter of the old engine will destroy the quality of the new engine oil, the service life of the new engine oil will be reduced. When you come to autumn, you must remember to remove and replace the winter oil. When you come to the early spring, you must remove and replace the summer oil. If your oil is a four-season universal oil. Since the oil is slightly thinner in winter, the oil will be thinner in winter when it comes to summer, which is unfavorable for the production of oil slick and will increase the damage of mechanical parts. In the summer, the oil becomes thicker after the winter, which is unfavorable to the fluidity of the oil, which will cause too much carbon in the engine cylinder, which will increase the damage of mechanical parts.
