After a long period of operation, the pulley will have a certain degree of wear and tear, and it is necessary to consider replacing it at this time.

Methods/Steps

1. When replacing the national standard straight hole pulley, try to use a tool similar to a rubber hammer to beat, and beat both sides of the pulley at the same time.

2. When replacing the national standard straight hole pulley, in case of a pulley that is very difficult to disassemble, the puller should be disassembled with a puller. When disassembling the puller, attention should be paid not to pull hard all at once, but to pull it 1.1 to the outside, so that the pulley is not easy to be damaged.

3. When installing the national standard pulley, be careful not to knock the pulley hard into the motor shaft. If lubricating oil is used, the pulley can be installed more quickly.

4. When replacing the European standard taper sleeve pulley, the locking screw should be removed with a suitable hexagon socket, and then the removed screw should be screwed into the removal hole, so that the pulley and the taper sleeve are separated. If the taper sleeve cannot be removed from the shaft, use a rubber tool to gently knock it to separate the taper sleeve from the shaft.

5. When replacing the pulley, first ensure that the surface of the pulley is not damaged, and the shaft hole is smeared with lubricating oil, which can make the pulley more convenient to remove, so as not to affect the next use;

6. When installing the taper sleeve as a pulley, pay attention to using the screw self-locking method, and cannot use hammers and other tools to install it.

7. First, rotate the bolt out of the fastening hole, and then screw the bolt into the removal hole at the same time. At this time, the bolt needs to be forced at the same time. When the removal hole is stressed at the same time, the pulley will fall off from the taper sleeve, and the removal of the most set and pulley is completed.

9. First, send the pulley into the shaft, then insert the taper sleeve into the keyway of the shaft to adjust the position, then send the pulley into the taper sleeve, and then screw the bolt into the fastening hole. When the pulley is found to be offset, you can use the bolt into the removal hole to adjust. After adjustment, the installation of the pulley is completed. The keyway should be moderately tight in the shaft groove. Too tight or too loose will damage the key and groove, and too loose will cause the belt to slip or vibrate. Therefore, the width and height of the keyway should be confirmed with the merchant technology when selecting the type.