变速箱作为汽车传动系统的核心部件，维修后若保养不当，不仅会影响驾驶体验，还可能导致故障再次发生，甚至造成更严重的损坏。掌握科学的保养方法，是让维修后的变速箱保持良好性能、延长使用寿命的关键。以下将从多个方面详细介绍变速箱维修后的保养要点。

　　As the core component of the automotive transmission system, if the gearbox is not properly maintained after repair, it can not only affect the driving experience, but also lead to the recurrence of faults, and even cause more serious damage. Mastering scientific maintenance methods is the key to maintaining good performance and extending the service life of the repaired gearbox. The following will provide a detailed introduction to the maintenance points after gearbox repair from multiple aspects.

　　一、重视油液管理

　　1、 Pay attention to oil management

　　（一）定期更换变速箱油

　　（1） Regularly replace the transmission oil

　　变速箱油是变速箱正常运转的 “血液”，对其性能和寿命起着至关重要的作用。维修后的变速箱，建议按照维修手册或维修技师的建议，缩短首次更换变速箱油的周期。一般来说，普通自动变速箱油更换周期为 6 - 8 万公里，但维修后的变速箱可能在 3 - 4 万公里时就需要更换。这是因为维修过程中可能会残留一些金属碎屑或杂质，提前更换变速箱油可以及时清除这些潜在威胁，避免其对变速箱内部零件造成磨损。

　　Transmission oil is the "blood" of the normal operation of the gearbox, playing a crucial role in its performance and lifespan. After maintenance, it is recommended to shorten the cycle of the first gearbox oil change according to the maintenance manual or the advice of the maintenance technician. Generally speaking, the oil replacement cycle for a regular automatic transmission is 60000 to 80000 kilometers, but a repaired transmission may need to be replaced at 30000 to 40000 kilometers. This is because there may be some metal debris or impurities left during the maintenance process. Changing the transmission oil in advance can promptly remove these potential threats and avoid them from causing wear on the internal parts of the transmission.

　　在更换变速箱油时，务必选择符合车辆要求的油品型号。不同类型的变速箱（如手动变速箱、自动变速箱、CVT 变速箱等）对油液的性能指标要求不同，使用不匹配的变速箱油，可能会导致换挡顿挫、异响等问题。例如，自动变速箱油需要具备良好的润滑性、抗磨性和低温流动性，以保证换挡的平顺性；而手动变速箱油则更注重齿轮的抗磨损能力。

　　When replacing the transmission oil, it is essential to choose the type of oil that meets the vehicle's requirements. Different types of transmissions (such as manual transmissions, automatic transmissions, CVT transmissions, etc.) have different requirements for the performance indicators of the oil. Using mismatched transmission oil may lead to problems such as gear shifting jerks and abnormal noises. For example, automatic transmission oil needs to have good lubricity, anti-wear properties, and low-temperature fluidity to ensure smooth shifting; Manual transmission oil, on the other hand, places more emphasis on the wear resistance of gears.

　　（二）检查油液状态

　　（2） Check the oil condition

　　除了定期更换，日常还需关注变速箱油的状态。可以通过变速箱油尺或油液观察孔查看油液的颜色和透明度。正常的变速箱油呈红色或淡黄色，质地均匀、透亮。如果发现油液颜色变黑、浑浊，甚至有焦糊味，这可能是变速箱内部高温、磨损严重或油液氧化变质的表现，应立即前往维修店检查。此外，还要注意油液的液位是否在规定范围内，液位过低会导致变速箱润滑不良、散热不足，液位过高则可能引起变速箱内部压力增大，出现漏油等问题。

　　In addition to regular replacement, it is also necessary to pay attention to the condition of the transmission oil in daily life. You can check the color and transparency of the oil through the transmission dipstick or oil observation hole. Normal transmission oil is red or light yellow in color, with a uniform and transparent texture. If the oil color turns black, turbid, or even has a burnt smell, it may be a sign of high temperature, severe wear, or oxidation and deterioration of the oil inside the gearbox. You should immediately go to a repair shop for inspection. In addition, it is important to pay attention to whether the oil level is within the specified range. A low level can lead to poor lubrication and insufficient heat dissipation in the transmission, while a high level may cause an increase in internal pressure and oil leakage in the transmission.

　　二、养成良好驾驶习惯

　　2、 Develop good driving habits

　　（一）平稳起步与换挡

　　（1） Smooth start and gear shifting

　　维修后的变速箱需要一个适应期，驾驶时应尽量保持平稳。起步时，避免急加速、急刹车，平稳踩下油门踏板，让车辆缓慢提速。这样可以减少变速箱内部零件的冲击，降低磨损风险。在换挡操作上，手动挡车型要确保离合器完全踩到底，换挡动作要迅速、准确，避免长时间半离合状态；自动挡车型在换挡时，应在车辆停稳后再进行操作，尤其是从 D 挡（前进挡）切换到 R 挡（倒挡）或 P 挡（停车挡）时，防止变速箱内部的齿轮和换挡机构受到不必要的损伤。

　　The repaired gearbox requires a period of adaptation, and should be driven as smoothly as possible. When starting, avoid sudden acceleration or braking, steadily step on the accelerator pedal, and slowly accelerate the vehicle. This can reduce the impact of internal components of the gearbox and lower the risk of wear. In terms of shifting operation, manual transmission models should ensure that the clutch is fully pressed to the bottom, and the shifting action should be quick and accurate to avoid prolonged semi clutch state; When shifting gears in automatic transmission models, the operation should be carried out after the vehicle has come to a complete stop, especially when shifting from D gear (forward gear) to R gear (reverse gear) or P gear (parking gear), to prevent unnecessary damage to the gears and shifting mechanisms inside the transmission.

　　（二）避免超负荷行驶

　　（2） Avoid overloading driving

　　不要让车辆长时间处于超负荷状态，如超载、爬陡坡、频繁拖车等。超负荷行驶会使变速箱承受过大的负荷，导致内部零件过度磨损、温度升高，增加故障发生的概率。如果需要运输重物或爬坡，应提前规划好路线，尽量选择路况较好、坡度较缓的道路行驶。同时，在高速行驶时，也要避免长时间以最高车速行驶，合理控制车速，让变速箱在合适的工况下工作。

　　Do not keep the vehicle in an overloaded state for a long time, such as overloading, climbing steep slopes, frequent towing, etc. Overloading driving can cause the gearbox to bear excessive loads, resulting in excessive wear and temperature rise of internal components, increasing the probability of faults occurring. If you need to transport heavy objects or climb slopes, you should plan your route in advance and try to choose roads with good road conditions and gentle slopes. At the same time, when driving at high speeds, it is also necessary to avoid driving at the maximum speed for a long time, control the speed reasonably, and let the gearbox work under suitable working conditions.

　　（三）正确使用挡位

　　（3） Correct use of gears

　　不同的驾驶场景应正确选择挡位。例如，在长下坡路段，自动挡车型不要长时间使用 D 挡滑行，应根据坡度大小选择合适的低速挡（如 L 挡、M 挡），利用发动机制动控制车速，减少刹车系统和变速箱的负担；手动挡车型也应及时降挡，避免空挡滑行。在等待红灯或临时停车时，自动挡车型如果停车时间较短（30 秒以内），可以使用 D 挡并踩住刹车；但如果停车时间较长，建议挂入 N 挡（空挡），并拉起手刹，避免变速箱内部的液力变矩器长时间处于工作状态，造成油温升高和磨损。

　　The correct gear should be selected for different driving scenarios. For example, on long downhill sections, automatic transmission vehicles should not use D gear for long periods of time to slide. Instead, they should choose the appropriate low-speed gear (such as L gear, M gear) according to the slope, use engine braking to control the speed, and reduce the burden on the braking system and gearbox; Manual transmission models should also downshift in a timely manner to avoid coasting in neutral. When waiting for a red light or temporary parking, if the automatic transmission vehicle has a short parking time (within 30 seconds), it can use D gear and press the brake; But if the parking time is long, it is recommended to shift into N gear (neutral) and pull up the handbrake to avoid the hydraulic torque converter inside the gearbox being in working condition for a long time, which may cause oil temperature rise and wear.

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