Some operators believe that farm machinery repair replacement parts is very simple, the newer parts on the line. In fact, if the new parts are improperly assembled, the power of agricultural machinery decreases, the fuel consumption increases, and the start-up is difficult; Heavy damage to the machine. Therefore, the following points should be paid attention to when buying replacement parts.
1. Pay attention to the quality of parts when buying new parts. Do not buy fake and inferior products, carefully check the parts for 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 the new accessories should be cleaned. Especially the precision even parts should be paid more attention to, so as not to cause accidents.
3. Some mating parts should be replaced in pairs. If you replace the gear, you can not only replace one of the more serious wear. When you replace the double row sleeve roller chain in the transmission box, you should also replace the main and driven sprocket in pairs; When replacing the cylinder liner, replace the piston and piston ring at the same time.
4, the same model of standard parts and large parts are not common. The manufacturer will produce parts with larger sizes for users to choose when repairing. Therefore, when purchasing accessories, you must determine whether the purchased accessories are standard or large parts. If the journal can only be matched with the standard crankshaft tile, otherwise, the processing amount of scraping bearing tile is very large, which is a waste of time, and can not ensure the repair quality, but also greatly reduce the service life of accessories.
5. When replacing new parts, the model of the new part and the old part should be exactly the same. When some operators replace the new nozzle, they do not pay attention to the original nozzle specifications and models, and buy the wrong needle valve couple parts, which often causes difficulties in starting light and stuck nozzle in heavy cases.
6, installation must pay attention to the direction. Some parts have directional, if the installation is wrong, it will be difficult to start, and even damage the parts.
