In terms of driving in China, there are a lot of things to pay attention to, because basically all the driving experience and even the value skills are obtained through the actual road and not learned in the driving school. In my opinion, driving school should actually not teach new drivers the driving skills and traffic rules, but must ensure that new drivers can truly grasp and understand these technologies and rules, because after all, technology and rules are dead and can not be mastered. It is the most important, but unfortunately there is no driving school in the country that can do it. The security here is not only to make yourself safe, but also to make other traffic units get safety in your traffic activities (not just driving, old drivers crossing the road, riding bicycles are equally safe), because whether you drive or not As long as a traffic accident occurs, it will be bothersome and dangerous, so this is a precondition and a permanent driving principle, but this safety awareness is not through the mouth and I can have it, all the following skills and experience In fact, this principle is all started. Please look down. 1, downshift replenishment, overtaking downshift, heel action. (The essence of manual transmission is here. Pure driving skills.) 2. Speed ​​should not be too fast when you are too narrow or open roads. Ensure that you can stop the car in an emergency. 3. The domestic car gods must pay attention to the zebra crossing to allow pedestrians to go first. In my experience, driving a fierce local fool in Europe will stop the zebra crossing. This means that many people will not look at the car as long as they walk along the zebra crossing. The default car will make people feel at home. If you also drive with domestic habits, it can be very dangerous. 4. Most urban areas in Europe are self-service parking fees. Machines in very few countries can swipe cards. Please bring enough coins. How long will it take to park for a long time? (Some city-specific areas have time limits, not more than two hours.) Don't be lucky. If you rent a car, illegal fines will not only directly credit your credit card, but you will also need to add your car rental company's handling fee (tire). 5. Students with contact lenses, please bring your spare frame, eye drops and wet wipes. 6. Another point is that people in the same industry must not quarrel with people driving at high speed! Whether it is a couple, girlfriends, parents or what relationship, to quarrel, please wait until the destination got out of the car and noisy. Originally, high-speed drivers were in a state of high tension and they were prone to road anger. At this time, the quarrel was very unsafe.
Daily maintenance of excavator hydraulic cylinders
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The hydraulic cylinder of an excavator is one of the important hydraulic components responsible for driving and controlling mechanical movements. In order to ensure the normal use of hydraulic cylinders and extend their service life, daily maintenance is necessary.
1. Regularly clean the hydraulic cylinder: During use, the hydraulic cylinder will be attacked by various pollutants, such as dust, sediment, oil stains, etc. These pollutants can affect the working efficiency and lifespan of the hydraulic cylinder. Therefore, it is necessary to regularly clean the hydraulic cylinder.
2. Regular inspection of seals: The seals of hydraulic cylinders are key components to ensure their normal operation. If the seals are damaged or worn, it can lead to oil leakage or unstable operation of the hydraulic cylinder. Therefore, it is necessary to regularly inspect the sealing components of the hydraulic cylinder and replace them in a timely manner if there is any damage or wear.
3. Regular inspection of hydraulic oil: The operation of hydraulic cylinders requires the support of hydraulic oil, so the quality of hydraulic oil has an important impact on the working effect of hydraulic cylinders. Regularly check the quality of hydraulic oil, and replace it promptly if there is contamination or deterioration.
4. Regularly check the hydraulic pipeline: The hydraulic pipeline is the blood vessel of the hydraulic cylinder. If there is oil leakage or damage to the pipeline, it can cause the hydraulic cylinder to not work properly. Therefore, it is necessary to regularly inspect the hydraulic pipelines and promptly repair or replace them if there is any oil leakage or damage.
5. Regularly lubricate the hydraulic cylinder: The piston rod and piston ring of the hydraulic cylinder need to be lubricated to reduce wear and friction. Therefore, it is necessary to regularly apply lubricating oil to ensure the normal operation of the hydraulic cylinder.
In short, the daily maintenance of excavator hydraulic cylinders is very important, which can extend their service life and improve work efficiency. Regular cleaning of hydraulic cylinders, inspection of seals, hydraulic oil, hydraulic pipelines, and lubrication of hydraulic cylinders are required.