Jinan used gearbox use method
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First, the symptoms
Phenomenon 1. When the gear is engaged, the gear cannot be smoothly entered.
Phenomenon 2. After the gear is released for more than 1 second, the brake will be released, and the vehicle running fatigue will not start automatically.
Phenomenon 3. The speed increase is not good. After rising to a certain speed, step on the throttle and accelerate the no effect.
Phenomenon 4. When the gearbox is shifting, the gear cannot be removed.
Phenomenon 5. The gearbox is automatically disengaged or disordered.
Phenomenon 6. Excessive vibration after the gear is placed or during driving.
Phenomenon 7. During steady running, the engine speed suddenly rises and the engine power output is suddenly interrupted.
Phenomenon 8. The abnormal noise of the gearbox is obvious under the front of the gearbox and under the oil pan.
Second, prevention articles
In addition to the right medicine, it is more important to prevent it from happening. If the gearbox is really out of order, you can only go to the professional 4S shop to "see a doctor". Maintenance change boxes are expensive, and it is more sensible to prevent it from getting sick than to see a doctor. Use the misunderstanding to collect:
In the automatic transmission model, the habitually incorrect operation will reduce the service life of the transmission. The following will focus on the areas where the automatic transmission is more prone to misunderstanding during use.
Mistake 1. When the car is parked for a long time, the shift lever is still hung in the D block.
While waiting for a signal or traffic jam, if the time can be kept in the D gear within one minute, but the time is longer, it is better to change into the N gear (neutral) and tighten the parking brake, otherwise it will The transmission oil temperature is raised and the oil is easily deteriorated.
Mistake 2. When driving at high speed or downhill, slide the shift lever in the N position.
Some drivers, in order to save fuel, turn the shift lever to the N position when driving at high speed or downhill, which is likely to burn out the transmission. When the long slope does need to be taxied, the shift lever can be kept in the D range, but the engine should not be turned off.
Mistake 3. Start the engine in the gears other than the automatic transmission P or N.
Starting the engine in a gear other than P or N, although the engine is not running, it is possible to burn out the neutral start switch of the transmission. Therefore, the engine can only be started in the P or N range. Before starting the engine, be sure to confirm whether the shift lever is in the P or N position.
Mistake 4. The parking brake is not used when the ramp is parked.
When parking on a slope, there is a safety hazard when the parking brake is not used. Although the parking lock mechanism provided in the P gear of the car equipped with the automatic transmission is generally rarely invalid, it will cause an accident if it fails. .
Misunderstanding 5. As long as the D gear starts, you can change the throttle to change to the high speed gear.
This approach is wrong. Because the shifting operation should be "the throttle is raised in advance, stepping on the throttle to lower the gear". That is, after the start of the D block, keep the throttle opening 5%, accelerate to 40km / h, fast throttle, can be increased to a gear, and then accelerate to 75km / h, the throttle can increase a gear. When you lower, press the speed of the train and step on the throttle to return to the low gear. But it must be noted that the throttle cannot be stepped on. Otherwise, it will be forced into the low gear and may cause damage to the transmission.
Third, Jinan second-hand gearbox http:// maintenance and inspection and oil change is the most critical
Automatic transmission models do not strictly follow the maintenance and repair procedures in use, lack of timely inspection and daily maintenance, will accelerate the formation of damage and failure of the transmission, and even increase the harm of the consequences of the failure, so preventive maintenance will be necessary, and Among them, the detection and replacement of lubricating oil ATF is very important.
1. Pay attention to the oil level (check in the case of hot car), check whether there is oil leakage, the transmission oil can neither be too much nor lose money, the loss may cause the burning box, too much will cause the gearbox to overheat;
2. Pay attention to maintenance and oil change. Each car manufacturer produces different car brands. The oil change period is different. Pay attention to the instruction manual of your own brand. It must be replaced when it expires, and some cars must add the oil specified by the company. Otherwise, Enter the emergency mode, the third gear of the lock appears;
3. Check the color of the transmission oil at any time. The normal transmission oil should be odorless, translucent, red or yellow. If the transmission oil is found to be black or burnt, it must be replaced immediately. 