1. Check whether the coupling screws are tight
2. Regularly check whether the coupling rubber cover is aging and replace it in time
3. Update to the durable new material cover coupling type
Adresse : No.173, Jitai Rd., Qingmeng Ind Zone, Quanzhou City, Fujian, China
Tél : +86-595-22216883
Whatsapp : +86 15905996312
E-mail : machine@hongancn.com
