It is not allowed to hit with a hammer when installing transmission parts on the output shaft. Generally, it will be installed with the assembly fixture and the shaft screw. Otherwise, the internal parts of the reducer may be damaged.
A speed reducer is a kind of power transmission device. It makes use of the gear speed converter to reduce the rotational speed of the motor to the desired rotational speed. Meanwhile, a larger torque will be reached. Among all the present mechanisms for the power transmission, the speed reducer has a wide range of applications. It can be see in almost all the transmission systems of all kinds of machinery. It can be used in the transportation vehicles such as ships, automobiles, and motorcycles, etc. It can also be applied in the heavy construction equipments, and machinery used in industrial processing machinery and automated production equipments. Besides, it can be seen in our daily life. For example, it can be used in home appliances, watches and so on. Thus, we can see that its application range is quite wide which is from the large transmission tasks to the small loads. As to its usage in the industries, the reducer can reduce the speed and increase the function of the torque. Therefore, it can be widely used in the speed and torque conversion devices. Since speed reducer has so wide application, it is quite necessary to check and maintain this important device. There are many considerations for inspection and maintenance.
Firstly, the speed reducer should be firmly installed in the stable level of foundation or base. The oil in the oil tank should be excluded and the cooling air should be circulated. The unreliable basis will cause vibration and noises and lead to the damage of bearings and gears. When the drive is connected with the prominence or using the gears and sprocket drive, people should consider installing the protective devices. If the output shaft is to carry greater radial loads, you should choose a strengthened type
Secondly, it should be installed according to the rules. After the installation is finished, you should carefully examine the location to ensure its accuracy. Besides, the reliability of the compression fastener should also be inspected. The reducer should rotate flexibly after the installation.
The last step, when installing the speed reducer, you should attach importance to the central axis of the drive. Its error should not be larger than the amount of compensation of the couplings. The good centration will extend service life and get desirable transmission efficiency. | 
