Agricultural machinery replacement of new parts in the process need to pay attention to what problems
1. Pay attention to the quality of parts when buying new parts. Do not buy fake and inferior products, carefully check whether the parts have rust spots, cracks, deformation and other defects, surface size is in line with the requirements.
2. Before assembly, the antirust coating on the surface of new accessories should be clean. In particular, precision parts should be paid more attention to so as not to cause accidents.
3. Some matching parts should be replaced in pairs. Such as replacing the gear, can not only replace one of the more serious wear, replace the double row sleeve roller chain in the transmission box, but also in pairs to replace the main and driven sprocket; Replace the piston and piston ring when replacing the cylinder liner.
4. Standard parts and enlarged parts of the same model are not common. Manufacturers will produce larger size parts for users to repair optional. Therefore, the purchase of accessories must be determined that the purchased accessories are standard parts or enlarged parts. Such as the journal can only be selected standard crankshaft tile, otherwise, the amount of processing when scraping the bearing tile is large, which is a waste of time, can not guarantee the repair quality, and will greatly reduce the service life of accessories.
5. When replacing the new parts, the model of the new parts and the old parts should be exactly the same. When some machines replace the new nozzle, they do not pay attention to the original nozzle specifications and models, and buy the needle valve coupling by mistake, which often causes the consequences of light start-up difficulties and heavy nozzle stuck.
6. Attention must be paid to directionality during installation. Some parts have directionality, if the installation is wrong, it will be difficult to start, or even damage the parts.
