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3. Med delovanjem ventilatorja, če najdemo nenormalne zvoke, se motor močno pregreje, ohišje je elektrificiran, stikalo izlete, ventilator nenormalni pojavi pred zagonom naprave .
4. According to the usage environment conditions, lubricating grease should be supplemented or replaced irregularly for the bearings (motor enclosed bearings do not need to replace lubricating grease during their service life). To ensure good lubrication of the fan during operation, the refueling frequency should not be less than 1000 hours per time for the enclosed bearings and motor bearings. ZL -3 litij na osnovi mazanja na osnovi litija je treba uporabiti za polnjenje 1/3 notranjega in zunanjega obročev ležajev med polnjenjem; Strogo prepovedano je delovati brez olja .
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