(1) When the temperature of the conveying medium is too high, too low, or contains impurity particles, flammable, explosive, and toxic, it is necessary to take corresponding measures such as blocking, rinsing, cooling, and filtering.
(2) Before the operation, please use the hand-cranked car to pay attention to whether the torque is too large, whether there is any rubbing or abnormal sound.
(3) Pay attention to the direction of rotation, whether the coupling is centered, whether the lubrication of the bearing part is appropriate, and whether the piping is correct.
(4) Before the operation, first open the medium and cooling water valves, check whether the gas in the sealed chamber is completely discharged, prevent the static pressure from causing leakage, and then start the operation.
(5) Whether the work is normal and stable after driving, whether there is abnormal torque caused by shaft rotation, abnormal noise and overheating.