一定有一個bearing 壞了。
好好檢查belt 上的所有的pulley
所有跟帖:
• 嗯,我也懷疑這個,可能還沒完全壞,但是快了,綜合因素 -yddad- ♂ (0 bytes) () 02/13/2020 postreply 21:43:40
• 嗯,我也懷疑這個,可能還沒完全壞,但是快了,綜合因素 -yddad- ♂ (0 bytes) () 02/13/2020 postreply 21:43:40
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