transmission assembly introduce

The function of the gearbox is to: 1. change the transmission ratio to meet the traction needs of different driving conditions; 2. Implement reverse driving; 3. When the engine is started, idling, shifting gears, or stopping for power output, interrupt the power transmission to the drive wheels. The maintenance method for the gearbox is: 1. Regularly replace the gearbox oil; 2. Regularly check the oil level; 3. Avoid sliding in neutral gear; 4. Regularly clean the gearbox; 5. Avoid forcefully shifting gears; 6. Shorten the time it takes to idle and warm up the car. The signs of transmission failure are: 1. During driving, the vehicle shifts gears and experiences shockwaves; 2. Refueling engine idling without accelerating; 3. The oil temperature is too high, emitting a strange odor; 4. Shift time is too long or too short)

Replacement method for gearbox assembly

1. First remove the universal joint screws to separate the universal joints of the transmission and transmission shaft; Remove the clutch cover screws again to separate the transmission and clutch; If it is a remotely operated transmission, separate the control mechanism from the transmission body and finally remove the transmission from the car. 2. Clean the external oil and dirt of the transmission, pay attention to protecting the front and rear axle heads. Unscrew the oil drain plug, drain the lubricating oil in the transmission, and then tighten the oil drain plug. 3. Find a clean and dust-free area, use disassembly tools and copper rods, Start disassembling the transmission. The disassembly sequence is generally: transmission cover, first shaft, second shaft, intermediate shaft, and reverse shaft. 4. When disassembling parts, first check the original direction and position of the parts before disassembling, and if necessary, make a record; The dismantled parts should be arranged neatly in order of disassembly, and if necessary, the parts can be strung together in sequence using wire or iron wire; Gears can be fitted onto the shaft in their original direction and position to prevent installation or omission. All disassembled parts should be cleaned and inspected accordingly, and those that cannot be used anymore should be replaced; Dismantled oil seals and gaskets should generally not be used anymore and should be replaced. Before assembly, all bearings, oil seals, keyways on the shaft, inner holes of the gears, and bearing holes in the transmission case should be coated with gear oil or engine oil, and the paper gasket to be replaced should be soaked in engine oil. The assembly sequence is opposite to the disassembly sequence, that is, the parts to be removed should be installed first, so that all parts are installed in their original positions. During the installation process, the mating parts should be rotated frequently, Pay attention to the direction of the oil seal and there should be no damage. Before installing the transmission cover, check the site for any missing parts, whether there is axial displacement of each shaft and fixed gear, whether the paper pads are intact in all places, and whether each pair of meshing gears is meshing within the full tooth width; Move the sliding gear by hand to see if it can move axially to full tooth width meshing; Rotate the first shaft by hand and try each gear separately. It should be able to rotate flexibly and smoothly without jamming. 9. Install and fix the shift fork onto the corresponding shift fork shaft, and then install the shift fork shaft into the corresponding hole on the transmission cover. When installing the shift fork shaft, pay attention to installing the self-locking mechanism and interlock mechanism into the corresponding hole. The side of the shift fork shaft with three grooves should be aligned with the direction of the self-locking mechanism steel ball, There is a groove on one side of the shift fork shaft that aligns with the interlocking mechanism. After each shift fork shaft is installed in place, it is placed in the neutral position, and the sliding gears in the variable speed transmission mechanism are also placed in the neutral position. The transmission cover is installed on the transmission case. At this time, each shift fork is installed in the corresponding gear groove, and the connecting bolts are installed. Tighten the bolts in the specified order and torque, and use the gear lever to shift into different gears, Check in sequence whether the gear can be smoothly engaged. If it cannot be engaged, gently rotate the first shaft back and forth by hand. If it still cannot be engaged, remove the box cover for inspection

corolla introduce

The Corolla is the tenth generation straight upgrade product of Toyota COROLLA. Since its release in November last year, the Corolla has received global consumer attention; Now, this globally popular car has settled in FAW Toyota, once again allowing Chinese consumers to experience Toyota's latest technology and driving experience simultaneously. The predecessor of the Corolla was the AE86! The size of the Corolla body has significantly increased compared to the previous generation Corolla, and the entire vehicle has shown an unprecedented "wide and low" trend, creating a spacious interior space; The newly developed dual VVT-i technology with 1.6-liter and 1.8-liter engines will bring a more powerful power experience in the future The Corolla, the tenth generation Corolla that has been officially released in China and has become the focus of attention at the Beijing and Shanghai Auto Show, is the latest model in its series. It was officially launched on November 16, 2006. The Corolla, which is about to be launched by FAW Toyota, has two displacement models: 1.6L and 1.8L. Whether in terms of appearance, configuration, or power, the Corolla, The Corolla has been greatly improved on the basis of the old Corolla. The average fuel consumption of the Corolla is 8.88L/100km, and car owners have expressed that its fuel consumption is low. According to feedback from car owners in 2012, the Corolla has almost no problem with any malfunctions and its quality is very stable. Car owners generally recognize the Corolla in terms of acceleration and handling, Compared to the old Corolla, there has been a significant improvement. However, the 4-speed automatic transmission is slightly stingy. Car owners generally report that the fastest acceleration is achieved from 2nd to 3rd gear