English 
For a truck, the clutch driven plate is composed of the main body of the driven plate, friction linings, and the driven plate hub. The driven part of the clutch includes the driven plate and the output shaft. The driven plate is one of the key components of the clutch, which is used to transmit power through friction. The driven part of the clutch includes the driven plate and the output shaft. This part is composed of a single or multiple driven plates, which transmit the power from the driving part to the input shaft of the gearbox through friction. The clutch mechanism can temporarily separate the driving part from the driven part, and gradually engage them, and may also have relative rotation during the transmission process.
Whether it is a truck or a common small car, the clutch driven plate is generally installed in the flywheel housing between the engine and the gearbox. It is mainly installed in this position to ensure that the engine's torque can be transmitted to the gearbox normally, and make the car start more smoothly. If the clutch driven plate fails, it may cause serious damage to the driven friction lining, and lead to problems such as difficult gear shifting and clutch shaking when starting the car. Therefore, car owners need to regularly check the clutch driven plate.
Check the wear of the friction linings on the truck's driven plate. Use a dial caliper to measure the depth of the rivet head and check the degree of wear of the friction linings. If the depth is less than 0.3mm, it indicates serious wear and the friction linings should be replaced.
Check the deformation of the driven plate. The degree of deformation can be checked by the deflection of the driven plate. Use a dial indicator to measure the runout at the outer edge of the clutch driven plate. The circular jump of the end face should not be more than 0.4mm. If the circular jump of the end face exceeds 0.4mm, use a wrench to correct or replace the driven plate assembly. Otherwise, there will be problems such as clutch jitter during automatic start-up, incomplete clutch separation, and difficult gear shifting.
Check the connection between the driven plate and the easy plate. It can be checked by tapping the plates with a hammer. If the rivets are loose or broken, they need to be replaced.
Check the matching clearance between the splined shaft sleeve of the clutch driven plate and the input shaft splined shaft of the gearbox. If the clearance is too large, it will affect the automatic start-up or make noise when the vehicle speed suddenly changes. During the test, place the spline shaft of the driven plate on the spline shaft of the first shaft of the gearbox, and turn the driven plate back and forth by hand. There should be no significant looseness. If the tooth clearance exceeds 0.16mm, replace the wheel hub of the driven plate or the input shaft of the gearbox.
