对电动类故障家用电器进行维修时发现,有一大部分损坏的原因是因为没有按时注油或缺乏必要的日常养护造成的。哪些家用电器需要定期“喂”油,怎样“喂”油呢?吸尘器吸尘器普遍采用单相串激电动机,轴承全部采用滚珠轴承,使用寿命 When repairing an electric faulty home appliance, it was found that a large part of the damage was caused by lack of timely oil injection or lack of necessary daily maintenance. Which household appliances need regular “feed” oil, how to “feed” oil? Vacuum cleaner vacuum cleaners generally use single-phase series motors, bearings are all used ball bearings, service life