1.The purity of the lubricant used in the 12v geared motor is poor, which is the direct reason. It is therefore recommended that a special oil filter unit be used for the filtration before using the oil.
2.The iron filings in the 12v geared motor generated during machining of the parts were not cleaned.
3.The oil path of the 12v geared motor after pickling is processed by welding. It is not allowed to weld after the acid road is pickled, otherwise the impurities generated by the welding will enter the pipeline and enter the 12v geared motor as the lubricating oil circulates.
4.Certain parts on the assembled finished product has been process again.
5.Spare parts after cleaning do not pay attention to preservation, placed at will. Such as dust and other impurities into the important surface of the part, affecting the size of the match.
6.The sealing effect of the 12v geared motor
is poor. In terms of design, v-type dust-proof sealing ring can be used on the input and output shaft, and the surface roughness of the lifting shaft can be considered from the machining point of view.
7.Paint of the 12v geared motor cannot withstand high temperature. When the 12v geared motor is running at high temperature, the paint of the inner wall of the box can not withstand the high temperature, thus the skin is desquamated into the lubricating oil, and the outer wall of the box affects the appearance of the paint.
8.The sealant fell into the box. When too much sealant is applied on the face of the 12v geared motor or other joint, the sealant will squeeze into the box body and enter the lubricating oil after closing the box or closing the cover.