First, for maintenance and repair a broken main power, check the electrical grounding of the motor is good. 2 fastening screws and various parts of the coupling. 3 detects the motor insulation resistance is compliant, check the main circuit contacts. If the contacts severe erosion (wear contact point to the original thickness of 1/3), replace the contacts. Note: When servicing the power should hang sign informing people being repaired Second, for the maintenance of the damper: 1 to adjust the tightness of the belt, the hand plate moving wind round, smooth rotation is observed. 2 Check and replace gaskets and packing joints between each. 3 Clean the motor and wind wheel, filters and internal chassis. Department should make up for peeling paint brush. 4 to fill lubricating moving parts, in order to ensure the flexibility and stability of the coupling and the third bearing, electrical circuit repair and maintenance: a check valve mechanical opening and closing action is reliable, flexible, opening and closing angles are clearly marked . Two lights and a manual start checking voltage, current meter is working properly, the fan running all components have same sound, three-phase current imbalance. 3-point comprehensive inspection of each remote control box components are normal. 4 three consecutive open stands, remote check points are correct and reliable. 5 commissioning two hours, observing motor bearing temperature, motor temperature is normal. Make sure the fan is operating normally. For suction fan should be every six months for regular maintenance, and record the situation FRP axial fan, ensure good suction fan is running. DWT series fan model structure description 1, DWT- Axial roof fan since ￠ 300- ￠ 2400mm diameter industrial heaters, a total of seventeen kinds of machine numbers; DWT-Ⅱ centrifugal roof fan has nine kinds ￠ 300- ￠ 1000mm gauge ; DWT- centrifugal roof fan diameter since ￠ 280- ￠ 800mm, a total of ten kinds of machine numbers; DWT-Ⅳ non-motor turbine exhaust fan 14 ", 20" and 27 "three kinds of machine number, and also based on user needs to provide No other machine; 2, various types of wind turbine structures can be found in Figure FRP centrifugal fan assembly, which consists of the impeller, hairdryer, hood, transmission parts, loose-leaf damper, safety nets and other components; 3, the fan drive form: DWT-I type fan ￠ ≤2200mm using direct-drive motor, as the occasion required users to use a belt drive fans, the company is also required to produce, ￠ ≤2200mm form above using a belt drive, gear reducer can also be used in the form of loose-leaf dampers gravity, electric and manual three; DWT-Ⅱ, DWT-Ⅲ type roof fan, using direct-drive motor; 4, aluminum roof fan used widely, it has a variety of needs of the Company will be able to use. users require different technical parameters of research and development to improve the structure and shape; 5, the pressure is higher than the supply and exhaust fans should be used more than 600P centrifugal fan; pressure should be used in 400P-600P Francis fan; pressure below 400P following axial fan should be a strong natural wind outside or indoor and outdoor temperature difference is large, can be used without a motor turbine exhaust fan;. fan model | Hao Yang air conditioning equipment (certified) | Fan Yang-ho by the Texas Air Conditioning Equipment Co., Ltd. provided. Texas Air Conditioning Equipment Co. Hao Yang (www.dzapjt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customers Demand in the air-conditioning equipment Hao Yang led the staff warmly welcome all inquiries negotiations to create Hao Yang air conditioning equipment a better future.