Clutch kit J421601020 J42-1601030，J421601030，841677 J421601020，J421601030 J42-1601020 J42-1601030 FOR Chery

The installation method of Chery clutch kits varies slightly depending on the model, but the overall steps are roughly the same. Here is the general installation method: •  Preparation Work: Prepare tools such as a jack, wrench, screwdriver, caliper, and press, as well as a new clutch kit, including the clutch pressure plate, friction disc, and release bearing, etc.  •  Vehicle Lifting and Component Removal: Use a jack to lift the vehicle and support it stably, then remove the tires, braking system, and other components that may hinder the operation, such as engine mounts. Next, loosen and remove the fixing bolts of the clutch cover, separate the old clutch disc from the flywheel, and at the same time remove the release bearing and release fork assembly.Cleaning and Inspection: Use a cleaning cloth to thoroughly remove oil stains, rust, and debris from the surfaces of the flywheel and pressure plate. Check if the contact surfaces of the flywheel and clutch cover are flat; if there is wear or damage, they need to be repaired or replaced in a timely manner. Meanwhile, check if the new clutch kit is intact.  •  Installing the New Clutch Disc: Place the new clutch disc steadily on the flywheel, paying attention to its installation direction. The side with the boss faces the transmission, and the flat side without the boss faces the flywheel. Then, use a special tool or the transmission input shaft to align the driven disc with the guide bearing of the transmission shaft, ensuring that the center of the clutch disc is precisely aligned with the centers of the flywheel and pressure plate.Install the pressure plate: Apply lubricating grease evenly on the contact surface of the pressure plate, install the pressure plate onto the flywheel, and ensure that the alignment marks of the clutch cover with the pressure plate and the diaphragm spring are aligned. Then, tighten the fixing bolts of the pressure plate sequentially in a diagonal pattern, with the tightening torque generally being 25Nm.  •  Install the release bearing and release fork assembly: Apply lithium-based grease to the relevant connection points such as the release fork and the release bearing, install the release bearing onto the release fork, and then install the release fork assembly to the corresponding position, ensuring it is securely installed.  •  Reassemble the vehicle: Install other components back to their original positions in the reverse order of disassembly, including the half-shafts, drive shafts, etc., ensuring all connections are tightened in place.Adjustment and Testing: After installation, adjust the clutch pedal to ensure the free travel is between 15mm and 25mm with moderate force. Then start the engine, take a test drive, check if the clutch can engage and disengage normally, whether there are abnormal noises or jamming, and at the same time check if there is any leakage in the hydraulic system.

When installing the Chery clutch kit, the following precautions should be noted: •  Tool Usage: Specialized tools must be used for disassembly and assembly to avoid damaging parts. Do not clean parts with a dry brush, as this may generate dust and affect the installation quality.  •  Component Inspection: Before installation, ensure that the clutch kit is intact without deformation or wear. At the same time, check whether the contact surfaces of the flywheel and clutch cover plate are flat; if there is wear or damage, they need to be repaired or replaced in a timely manner.  •  Installation Direction: The clutch disc has direction requirements and must not be installed backwards. Usually, the side of the clutch driven disc with the damper disc should face the pressure plate. During installation, use specialized tools and follow the correct sequence to ensure stability.Bearing alignment: Use a special tool or the transmission input shaft to align the driven disc with the guide bearing of the transmission shaft to ensure accurate installation.  •  Lubrication treatment: Add lubricating oil to the guide bearing on the flywheel, and apply lithium-based grease to relevant connections such as the release fork and release bearing to reduce friction between components.  •  Bolt tightening: When installing the clutch pressure plate assembly, the pressure plate must be in contact with the flywheel before tightening the bolts. When tightening, tighten them sequentially in a diagonal pattern. The tightening torque is generally 25Nm. The locking torque of the release bearing is 15Nm.Gap adjustment: After installation, adjust the clutch pedal to ensure the free travel is between 15mm and 25mm, and check for any leaks in the hydraulic system. The installation position of the clutch release fork shaft transmission arm must be 195mm-205mm away from the fixed cable nut bracket.  •  Safe operation: Disconnect the negative pole of the battery before installation to prevent dangers caused by misoperation.

References：The content you provided regarding the precautions for installing the Chery clutch kit does not have a clear single source. Its content is a synthesis of information from multiple automotive repair materials and related websites, such as Pacific Auto Network, Autohome Forum, etc. For example, some articles on Pacific Auto Network mention precautions such as the installation direction of the clutch disc, bolt tightening requirements, and lubrication treatment. The content on Autohome Forum also covers aspects such as tool usage and component inspection.