Often check the chain of the guide rail type of the tightness of the chain, the oil wire rope to periodically check the tightness of the oil wire rope.

经常检查一下导轨式升降机的链条的松紧程序，有油丝绳的要定期检查油丝绳 的松紧程度。

youdao

Often check the chain of the guide rail type of the tightness of the chain, the oil wire rope to periodically check the tightness of the oil wire rope.

经常检查一下导轨式升降机的链条的松紧程序，有油丝绳的要定期检查油丝绳 的松紧程度。

youdao