1. Check whether the motor assembly is good and whether the firmware is loose; Check for good contact and rust on all conductive connection parts.
2. Check in detail the model and various data marked on the motor nameplate, such as rated capacity, rated voltage, protection level, etc., to see if they comply with the drawings or actual on-site requirements.
3. Rotate the shaft by hand to check if it rotates flexibly and if the axial movement exceeds the allowable range.
4. Is the paint on the casing of the damping motor intact, and is there a rotation direction sign and number on the casing. Whether the casing is damaged, and whether there are cracks in the fan cover and blades; Whether the rotation direction of the electric fan is correct, and whether the fixing keys or screws are tightened.
5. Open the junction box and use a multimeter to check if the three-phase winding is open. If necessary, use a bridge to measure the DC resistance of the three-phase winding and check if the resistance deviation is within the allowable range (the difference between the DC resistance of each phase winding and the average value of the three-phase resistance should generally not exceed plus or minus 2%)
6. Use a megohmmeter to measure the insulation resistance between each phase winding of the motor and between each phase winding and the casing. If the rated voltage required for electric power is 500V, use a 500V megohmmeter to measure the insulation resistance value, which should not be less than 0.5M Ω.
7. Remove the bearing cover or open the bearing shells, and check if the lubricating grease of the bearings has changed color. Deterioration and hardening, whether the amount of grease is sufficient. If the bearing is well lubricated, gently rotate the rotor. The rotor should rotate flexibly without any friction.
8. Check if the balance weight on the rotor is tight. If fixed with screws, it should be locked;,
9. Does the gap between the sealing ring of the stator end cover and the shaft comply with the regulations of the Chengbang Motor Manufacturing Factory? If there are no regulations from the manufacturing factory, it should generally be 0.1-0.33mm. In dusty areas, measures should be taken to prevent dust from entering the bearings of the city-state motor.
10. Check whether the joint surfaces of the connecting components inside the motor are flat, whether the connecting screws of each part and each coil wire are tightened, and whether there are anti loosening measures.
Since its establishment, Cixi Feiteng Motor Co., Ltd. (Feiteng Enterprise) has actively developed and developed small motors and reducers. During this period, we have adhered to the concept of customer first and quality first as the driving force, continuously improved and expanded various technologies, absorbed the advantages of small motors and reducers in the industry, and launched a series of product combinations that meet industry expectations. Our product reform began with market demand, Our commitment to quality comes from customer support. Mobile phone: 13524999583