Causes: ① pipes and pumps less rigid mounting bracket or loose connections ② oil viscosity is too high suction pipe diameter is too small ③ ④ ⑤ pump filter blocked parts wear rupture exclude methods: ① reinforcement or replacement of the mounting bracket and tighten ② joint replacement moderate viscosity fluid ③ ④ replace the suction pipe Clean or replace the filter ⑤ replace damaged parts [Company Name] Tengzhou Lung Machine Co., Ltd. [sales manager] Mr. Sun [Sales Hotline 0632-5878718 [business] phone] 15165871095 [Main product] single-column hydraulic press, gantry hydraulic machine, single-arm hydraulic machine, hydraulic machine, four-post three beam hydraulic machine, three beam hydraulic machine, hydraulic machine, [Company website] http://www.yeyaji2.com/http: //www.yeyaji3.com/ http://www.xc-yyj.com/ http://www.shukongxichuang5.com/http://www.yxyeyaji.com/ http://www.hndyeyaji.com/ [Address] Tengzhou Zone Industrial Park in Southern District