Functional Inspection Prior to Test-run

Before leaving the manufacture plant, a perfect test-run has already been conducted to the mixing machine. The initial test run in the user's factory cannot be done until following checks have been conducted. There should be no abnormal contact inside the mixing chamber or between the other accessories. All connecting points must be checked carefully to ensure there is not any looseness. Check the rotors for flexible rotation, and make sure there is not any abnormal sounds resulted from blockage, collision or abrasion etc. Check the rotors for their rotating directions matching with that indicated, for this it may need to start the motor for a short time; meanwhile, check the motor for any change in its rotating direction.



Check whether the emergency stop switch is in good working condition or not, safety switch of the access door As a part of the safety control of the mixing machinery, whether the safety switch of the access door works normally or not is directly related with the safety of the mixer, so the safety switch should be frequently checked for its functioning. Check the discharge gate mechanism for flexible rotation. When opening or closing the gates, there should be no abnormal sounds resulted from blockage, collision or abrasion etc.

Before each commissioning or after each unexpected interruption, the residual materials in the mixer chamber must be emptied. Only when the access door is closed and other related equipment is running, the principal machine of the paddle mixer can be started, and do not feed materials into the mixer until the rotor is running normally. Inch the mixer to check for any abnormal situation. If any, correct it. The temperature rise of bearing should not higher than 35℃ when ideal running for 0.5h, and the lubricating and sealing function still perform well. Check the running condition of the motor, which should be consistent with that required in its instruction. Screws, fasteners and lubricating points should be checked for normal performance after ideal running for 1 hour.