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Automatic door malfunction analysis (3)

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(1) door wheel spreader runner for a long time due to a certain wear and tear, if there is only a slight wear and tear situation, you can clean the wheel and rail, you can also add some lubricating oil to the wheel bearings, but can not add lub oil to the track and plastic wheel, because easy to suck dust after oiling, will make damage to the wheel faster.
(2) part of the metal connector has loose phenomenon, just re-reinforcement.
(3) the lower part of the guide system damage, will also cause a big sound phenomenon.
(4) activities of the door leaf and fixed door due to the phenomenon of friction and noise.
(5) on the beam in the initial construction did not do a good job, or with the top of the ceiling have a resonance phenomenon

In modern city we can find automatic doors everywhere, shopping malls, hotels and other public places,  the use of automatic doors gives a very convenient feeling, but the convenience is often required for automatic doors for testing, good maintenance work. Sometimes the automatic sliding door may failure to work, so what's the problems? Today we will introduce one of the malfunction: the automatic door opening and closing have noise 

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