clutch plate 312505001 31250-2821 312502821 312502820 312505001 31250-2821 312502821 312502821, 312502822,312502823 312502824,312502860，312502861 312502920,312502921A. for Hino H06CT J08C

The installation steps for the clutch friction plates of Nissan cars are similar to those of general vehicles, but due to potential differences between different models, the following are the general installation steps and precautions: 1. Preliminary preparation: Park the vehicle in a flat and safe area, engage the handbrake, and disconnect the negative battery cable. Prepare tools such as socket wrenches and torque wrenches, as well as new clutch friction plates, pressure plates, separation bearings, and other components. 2. Remove related components: Lift the vehicle, disassemble parts related to the transmission such as the half shafts, then remove the bolts connecting the engine to the gearbox body, separate the gearbox from the engine, and carefully lower the gearbox down.Remove the old clutch friction disc: Use a tool to secure the clutch flywheel. If there are no marks on the clutch cover and flywheel, make assembly marks. Then, gradually loosen and remove the fixing bolts of the clutch cover and flywheel diagonally, and take down the clutch cover, clutch friction disc, release bearing, release fork and other components in sequence.  •  Cleaning and inspection: Carefully wipe the surfaces of the flywheel and pressure plate with a cleaning cloth to remove oil stains, dust and impurities. Check the wear condition of components such as the flywheel, pressure plate and release bearing. If there is severe wear or damage, they should be replaced in a timely manner. At the same time, check whether the splines of the first shaft of the transmission have problems such as wear or deformation.Install the pilot bearing: Apply an appropriate amount of lubricating oil to the pilot bearing on the flywheel, then install the pilot bearing into the corresponding hole of the flywheel, ensuring it is securely installed.  •  Install the release bearing and release fork assembly: Install the release bearing and release fork assembly in the proper position, ensuring that the release bearing can move flexibly driven by the release fork and fits well with the first shaft of the transmission.  •  Install the new clutch friction disc: Generally, place the side of the new clutch friction disc with the boss facing the gearbox and the side without the boss facing the flywheel, aligning the spline in the middle with the drive shaft. Special guide shafts or other tools can be used to assist in installation to ensure accurate positioning. If there are notches for dynamic balance marks on the splines of the friction disc, the notches of each disc should be aligned during assembly.Installing the pressure plate: Mount the pressure plate onto the flywheel, align it with the assembly marks made earlier, hand-tighten the fixing screws, then uniformly tighten the bolts in a diagonal sequence to the torque specified by the manufacturer. During the tightening process, use a torque wrench to avoid over-tightening or under-tightening the bolts.  •  Installing the transmission and other components: Reconnect and secure the transmission to the engine in the reverse order of removal, then install components such as the half-shafts, ensuring all connecting bolts are properly tightened.  •  Connecting the battery and testing: Connect the negative battery cable, start the car, check if the clutch pedal travel is normal, if the clutch disengages and engages smoothly, and if there are any abnormal noises or vibrations. A road test can be conducted to confirm smooth gear shifting and further inspect the clutch's operation.

The following points should also be noted during installation: •  Keep clean: Before installation, the surfaces of the pressure plate and flywheel must be thoroughly cleaned. At the same time, ensure that the friction plate itself is clean and free of oil stains to avoid affecting the transmission of friction.  •  Proper lubrication: Apply an appropriate amount of temperature-resistant and pressure-resistant grease to parts such as the clutch disc splines, the contact points between the release bearing and the release fork. However, the amount must be strictly controlled to prevent the grease from getting on the working surface of the friction plate, which would cause slippage.  •  Check the condition of components: Carefully check whether the new clutch friction plate is damaged or deformed. Check the fit between the splines of the driven disc hub and the splines of the transmission input shaft. They should move freely without jamming or obvious looseness.

References：My content on the installation of Nissan clutch friction plates is mainly organized based on general knowledge and experience in the automotive repair field, without directly citing any specific sources. The information sources include:

• Automotive professional websites: such as Autohome and Pacific Car Network, which have many articles and Q&A about the maintenance and installation of car clutches. For example, Autohome mentions that when installing clutch plates, it is necessary to make good assembly marks and pay attention to the direction of installation. The content on Pacific Car Network also involves cleaning related components, evenly tightening the pressure plate bolts, and other key points, all of which provided me with basic references. I then combined these with the general characteristics of Nissan cars for organization.

Automobile Repair Manual: Although there is no official repair manual specifically for a particular model of Hino vehicles, the specifications and requirements for clutch system installation in general manuals in the automotive repair field, such as cleaning requirements, torque standards, and component inspection methods, have provided significant guidance for me in writing relevant content.  •  Automotive Repair Professional Books: Some professional automotive repair books systematically explain the installation steps and precautions for clutch components, including the installation direction of friction plates and lubrication requirements, which also serve as important bases for me to organize the content.