Under normal circumstances blast doors are airtight, JK58 bureau fan, to prevent the romantic short circuit. Ensure optimal airflow. After the fan run for three months, Fuxin fan, should be maintained, DK45 main fan, check the motor, DK40 main fan, add oil; check whether the complete range nameplates and signs; check the impeller is intact, the blade tight coupling Solid, coupled impeller and shaft can not loose. YBT Bureau Ventilator, Ventilator Bureau (certified), Fuxin fan by Zibo Blower Factory Co., Ltd. Zibo Blower Factory Co., Ltd. (www.zibo-fengji.com) is a professional "fans, mine fan, mine fan, explosion-proof fan, heat fan, boiler fan" of the company. Since its inception, we adhere to the "good faith, sound management" approach, the courage of healthy competition in the market, so that the "cloud laugh" brand has a good reputation. We adhere to the "service first, customer first" principle, so that the congregation Zibo Blower won the trust of customers in fan, ventilation equipment, and establish a good corporate image. Special Note: This information is for reference only pictures and information, please contact us to obtain the most accurate information, thank you!