Hot summer is coming, super green workshop ventilation equipment - negative pressure fan into our life again, how to make the use of negative pressure fan to improve and not easy to appear abnormal?

Here is a brief introduction to the maintenance of the negative pressure fan:

1, the maintenance of the negative pressure fan motor: in the maintenance of the negative pressure fan must be cut off the main power supply of the motor, check whether the motor wire joint is good, use a multimeter to measure the grounding resistance of the motor is in line with the requirements, check the contact point of the main loop, test the power switch equipment operating the negative pressure fan is intact.

2. Maintenance of the fan blade of the negative pressure fan: clean up the dust stains in the fan blade of the negative pressure fan, tighten the screws of the fan blade and the blade disk, and rotate the fan blade to query whether the fan blade is balanced, and check whether the fan blade is quivering and loose.

3. Adjust the belt tightness of the negative pressure fan. The belt is a rubber product. After a period of application, there will be softness and deviation. Loosen the belt fixing nut with the wrench, move the motor, and adjust the belt to the golden position. Remember that the belt of the negative pressure fan cannot be too tight, because the negative pressure of the motor will increase, and the belt will be aging and damaged