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List of the catalog of this article:

• 1, How many kilometers does the car gear oil change?
• 2、What is the impact of the car hitting the gear (is the car hitting the gear harmful)
• 3. How to operate car gear oil replacement
• 4, All sliding gears of car transmission are

How many kilometers should the car gear oil be changed?

1. Car gear oil should be replaced every 120,000 kilometers under normal driving conditions, and every 60,000 kilometers under bad driving conditions. The vehicle gear oil can be replaced for 60,000 kilometers recommended by the original factory and 4s stores.

2. Gear oil generally needs to be replaced once after the car drives 68,000 kilometers. Some special models may need to replace the gear oil after driving 240,000 kilometers. If you want to know how many kilometers you drive, you need to replace the gear oil, which can be decided according to the maintenance manual of the vehicle, or To use the position according to the viscosity of gear oil.

3. Generally speaking, gear oil needs to be replaced every 60,000 kilometers. In this way, it can also improve the transmission efficiency of gear engine output. When changing the oil, the selection of viscosity is the most basic selection factor of gear oil.

4. Change the car gear oil once every 60,000-80,000 kilometers. In small passenger cars, gear oil is also called manual transmission oil. Because the internal parts of the manual transmission are transmitted by gears, and the lubricating oil provides lubrication for the gears, the manual transmission oil is also called gear oil.

5. The gear oil of small cars and cars should be replaced around 40,000 kilometers, and the actual replacement cycle time should be based on the manufacturer's user manual. After all, the service life of the car gear oil is related to the car series, oil products, application standards, safe driving methods and other aspects.

What is the impact of the car hitting the gear (is the car hitting the gears more harmful)

The impact of the car hitting the teeth is as follows: the edges of the gear are flattened and become rounded, and the degree of occlusion into the gear will decrease, resulting in incomplete bite. If there is a slight vibration, there will be a loss of gear.

What's the harm if a car hits its teeth? If the car hits the teeth, the edges of the gears will be flattened and the degree of meshing will be reduced.

Big. The frequent teething of the manual transmission will make the edges of the gears flattened, and the degree of gear bite will be reduced, resulting in incomplete bite and shifting. If the situation is serious, it will lead to the inability to shift gears or hang up, which will affect the inability to drive the car normally.

It is harmful to hang reverse gears and hit gears, which will cause wear of gears.Hanging the reverse gear is mainly because the car is not stable, and the reverse gear will have a toothing phenomenon because there is no synchronizer. If it is a parked car, hanging the reverse gear will also cause the teeth to hang the reverse gear. There is no way to completely rule out the situation of hitting gears.

How to change the gear oil of the car

1. How to replace the gear oil of the car: Step 1: To remove the gear, first find the position of the odometer line on the gearbox, and then carefully remove the spool sleeve of the odometer, slow Move the plastic pinion gear slowly. This point is very important.

2. Let's take a look together. How to change the oil of car gears? First of all, the machine must be stationary, and the machine must be at normal temperature before it can be replaced. In addition, when replacing, pay attention not to let the temperature of the gear oil exceed 50 degrees.The first step: remove the gear.

3. How to change the gear oil by yourself: To remove the gear, you must first find the position of the odometer line on the gearbox. Then carefully remove the cover of the odometer screw and slowly move the plastic pinion. This step is very important.

4. Steps for replacing automobile gear oil: gear oil should be selected according to the regional environmental temperature. When there is no time to replace the gear oil in winter, do not mix diesel or kerosene in the gear oil to reduce the adhesion point. The wear resistance of gear oil is reduced, which promotes the wear of gears.

5. According to the rules of use, generally, the gear oil should be replaced once after the car drives 2000km. If it is used and maintained, it can be extended to more than 30,000km to replace it. When replacing the new oil, the old oil should be cleaned and the inside of the case should be cleaned to prevent the old oil from contaminating the new oil or depositing on the case. The impurities enter the surface of the friction part with the new oil.

All sliding gears of automobile transmission are

There are helical cylindrical gears, straight-tooth cylindrical gears, and straight-tooth bevel gears. In the secondary cylindrical gear transmission, the helical gear transmission is in the high-speed stage, and the straight gear transmission is in the low-speed stage. There are three reasons: 1) The helical gear transmission works smoothly, and when the accuracy level is the same as the straight gear, it allows a higher circumference speed, which is more suitable for high speed.

Reverse gear: input shaft → intermediate shaft (a→b→h) → reverse intermediate gear → R→five-speed combination sleeve (C) → output shaft.

The shaft is mostly supported by rolling bearings, with simple lubrication, high efficiency, small radial clearance, and reliable axial positioning. The lubrication method is mostly splashing (υ25m/s, as long as the viscosity is appropriate, it can be thrown on the wall).(3) Control part: The main part is located in the transmission cover.

Ordinary passenger cars use helical teeth, plus synchronizers, which can make gear shifting smoother, and gear reduction no longer requires a two-foot clutch. Professional racing cars mostly use straight teeth to ensure the maximum transmission of gearshift speed and torque, but the requirements for driver's operation are very high.

Gearshift: The gearshift lever is placed in the installation position of the wiper joystick of most vehicles in China, and the appearance is extremely similar. The transmission lever of the car is placed under the steering wheel. Because the transmission lever is shifted to the middle of the arms when changing gears, it is figuratively called the pocket gear.