判断变速箱工作状态好坏，直观的就是换挡速度和换挡时的质感。简单来说，就是老爷们打算超车加速时，变速箱会不会及时降档；需要巡航时变速箱会不会平顺，快速地升到高档位进行巡航。
The intuitive way to judge the working status of the gearbox is the shifting speed and the quality during shifting. Simply put, when the old man plans to overtake and accelerate, will the gearbox downshift in a timely manner; When cruising is required, will the transmission smoothly and quickly shift to high gear for cruising.
变速箱不仅降档反应巨慢，2档升3档还有明显的顿挫和瞬间失速，这种情况完全不是一个正常老化的情况。顺便把
济南变速箱油也一并换掉：
The gearbox not only has a slow downshift response, but there are also obvious jerks and momentary stalls when shifting from second to third, which is not a normal aging situation at all. By the way, change the Jinan transmission oil as well:
油底壳拆下来，用原始的重力换油法来检查整个变速箱。特地接了一小杯整个变速箱油。
Remove the oil pan and use the original gravity oil change method to inspect the entire transmission. Specially received a small cup of the entire transmission oil.
老油发黑粘度下降严重，闻起来还有一丝焦糊味。
The old oil blackens and the viscosity drops severely, with a slight burnt smell.
既然是传统的重力换油法，接下来就是拆油底壳清洗和更换集滤器，基本上变速箱脏的一面都可以展现在眼前。变速箱阀体的集滤器基本已经被研磨下来的金属粉末覆盖成了黑色，油底壳一样也是厚厚的一层油泥和金属粉末混合物。
Since it is a traditional gravity oil change method, the next step is to remove the oil pan for cleaning and replace the filter. Basically, the dirty side of the gearbox can be displayed in front of us. The filter of the gearbox valve body has been basically covered in black with ground metal powder, and the oil pan is also a thick layer of oil mud and metal powder mixture.
油泥和金属粉已经完全盖掉了原本的油底壳颜色
The oil sludge and metal powder have completely covered the original oil pan color
磁铁也是满满的金属粉末
Magnets are also filled with metal powder
原本银白色的集滤器滤芯也变成了金属灰色
The originally silver white filter element of the collector has also changed to metallic gray
检查完后就是简单地清洗和更换维修包配件，先用化清将油底壳和整个变速箱阀体冲洗干净，擦干后安装新的阀体集滤器，安装上新油底壳密封胶条就可以进行换油作业了。
After inspection, simply clean and replace the repair kit accessories. First, rinse the oil pan and the entire transmission valve body with a chemical cleaning agent, wipe them dry, and then install a new valve body filter. Install a new oil pan sealant strip to proceed with the oil change operation.
新的阀体集滤器滤芯用新变速箱油涂抹后安装，主要就是6个步骤：
The installation of the new valve body filter element is mainly carried out in six steps after applying new transmission oil:
(1).向加油口内加入变速箱油，直到油位孔开始均匀出油，停止加油，拧上油位孔螺栓。
(1) Add transmission oil to the oil filler until the oil level hole starts to evenly discharge, stop refueling, and screw on the oil level hole bolt.
(2).启动发动机，怠速30秒，从倒挡开始依次换挡，每个档位保持30秒，熄火，静止2分钟。
(2) Start the engine, idle for 30 seconds, shift gears sequentially from reverse gear, hold each gear for 30 seconds, turn off the engine, and remain stationary for 2 minutes.
(3).打开油位孔和加油孔，继续加油，直油位孔开始均匀出油。
(3) Open the oil level hole and refueling hole, and continue to refuel until the oil level hole begins to evenly discharge oil.
(4).重复步骤(1)-(3)两遍。
(4) Repeat steps (1) - (3) twice.
(5).拧好加油螺栓，油位孔螺栓。
(5) Tighten the refueling bolts and oil level hole bolts.
(6).完成加油上路，测试每个档位都保持10秒钟后回到店内再次检查油量。
(6) After refueling and driving, test each gear for 10 seconds before returning to the store to recheck the fuel level.
After changing the oil, the 2-3 gear, which had previously experienced severe jerks, became very smooth. It's not an exaggeration to say that without looking at the gear icon on the instrument panel, I don't know if I have already shifted gears. For more information, come to our website http://www.jnbsx.com consulting service
