First, the power supply voltage is too high: use the multimeter AC current file to check the power supply voltage, when too high, no longer use the industrial vacuum cleaner, so as not to cause the internal structure of the vacuum cleaner damage.
Second, the dust collection bag is full or micro-hole blocked, such as too much sticky dust on the dust filter, the dust collection room is full of dust, etc., we should pay attention to regularly clean the dust collection bag.
Third, the vacuum cleaner suction head and pipe obstruction: the need to stop the vacuum cleaner work, clean up the suction head and pipe obstruction of the foreign body before use.
Fourth, the motor carbon brush and the transductor spark is large, the motor carbon brush and rectifier wear spark is too large, replace the motor carbon brush model or running-in motor carbon brush, etc
Fifth, the brush frame screw loose, so that the motor carbon brush reverse rotation, causing high speed and overheating: adjust the electric rigid position, and then tighten the screw.
Sixth, the continuous operation time is too long, so that the equipment must have a moderate rest time.
