[Baiyun District Customer Service Hotline] What is Guangzhou Paiwo Air Energy Service Center? Training materials for technicians of Paavo Air Energy Service Center (continued) However, if it is a low-power motor, the motor is usually directly updated, because the cost of buying and installing a new motor is often cheaper than updating the bearing. It often takes a lot of time to buy bearings and disassemble motors, and satisfactory results may not be obtained. If the sleeve bearing structure that presses people from the end of the motor is adopted, some special tools are needed when disassembling the new bearing, as shown in Figure 20.1. 20.3 Disassembly of transmission device To remove the motor, the pulley, coupling or fan impeller must be removed from the motor shaft first, and the motor shaft is generally tightly matched with all parts. Safety precautions : must be very careful when removing all parts from the motor shaft. Because the parts have been fixed on the motor shaft for a long time, there is even corrosion between them. The motor shaft shall not be damaged when removing the parts on the shaft. The special pulley puller helps to remove the parts on these shafts, as shown in Figure 20.2. But other tools and certain operation methods are also needed. Most of the parts on the shaft are fixed on the motor shaft by fastening oyster nails and tightly abutting against the machine shaft through the holes on the parts.