Adjust the motor, hydraulic coupling, when the coupling between the roof axial fans, using the following two methods are inappropriate alignment: 1, by coupling halves are not in contact with a dial indicator fixed on a stationary coupling halves, the roof axial fans allow probe to measure the other rotary coupling halves radial and axial runout. 2, to help assist with a feeler flat block radial and axial runout. 3, the roof to adjust the axial flow fan with horn dimensions, the horn is applied between the base plate and the horn, and when to tighten each bolt to ensure that the bolt force is substantially uniform. 4, the roof axial fans use pump lubrication, running bearings are generally not lose oil, so when the slinger damaged, too lazy to fill due to the inconvenience of installation and equipment. 5, the roof axial fan slinger's role is to encounter unexpected outages or gas stations short fault and not the normal supply, the oil ring from the bearing housing oil pool oil lifting roof fans, in order to supply oil bearing certain background noise axial roof fan, to ensure its continued rotation without damage, it must not be missing. Aluminum non-powered ventilation of repair and maintenance: 1, aluminum without power ventilation under normal circumstances, about a month of continuous operation shall be to inject sodium calcium bearing grease or molybdenum disulfide grease with butter site. Fan runs continuously for 3-6 months to replace a grease-free motor turbine roof fans, with two-thirds full bearing space is appropriate. 2, aluminum without power ventilation periodic maintenance dwt series roof fans, eliminate internal fan fouling, dirt. 3, no power ventilation in aluminum boot, shutdown or operation, as found to be normal, including temperature, vibration, noise, etc., should be inspected immediately. 4, use the triangle belt adjustment device keep uniform tension state, can not be too loose or too tight, a few triangle tape should be the same length. dwt series roof fans | roof fans Guangyuan | Flextronics ventilation provided by the Liaocheng Wei Chong ventilation equipment. Liaocheng Flextronics ventilation equipment (www.lcwctf.com) (www.lcwctf.com) strong, credible, in Liaocheng fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Flextronics ventilation into the brilliant and you work for a better future!