After about 500 hours' operation, please check the main bearing. If it is necessary, please clean and add proper amount of grease or replace it with a new one.

本机器运行累计500小时左右时，请检查主轴承，必要时清洗，加入适量的润滑脂或更换。

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After about 500 hours' operation, please check the main bearing. If it is necessary, please clean and add proper amount of grease or replace it with a new one.

本机器运行累计500小时左右时，请检查主轴承，必要时清洗，加入适量的润滑脂或更换。

youdao