1.Abnormal sound of mixer: Check whether the cover is loose or not, whether the bearings have any problems, whether lubricant is followed-up.

2.The pneumatic door of the batching machine can't be closed tightly or opened: Check the gap of air door and adjust it to reasonable clearance. If the gap is too large, it is necessary to weld the steel plate at the discharge port.

3.The pressure of the air compressor rises slowly: It may be caused by the damage of the inlet valve, the obstruction of the air filter or the spring breaking of the pressure regulator.

4.The feeding speed of screw conveyor is slow: Open the broken arch device of the powder bin and check whether there is caking at the outlet of the powder silo.Check whether the blade of the screw conveyor is deformed.

5.No flow after the pump starting: Maybe the turn of the motor is reversed.