1.Please try to use the original nut as though our company is equipped with screw caps as spare caps.Tighten the nut to prevent loosening and oil leakage.

2.Please use 15kg power to set screw,don’t use extension bar to prevent valve rod from jamming.

3.Remove the caps before installation,please removal two screws in diagonal manner firstly,then fix the nuts again,lastly removal another two screw in diagonal manner,all these is to prevent oil seal from misplace. 

4.The aluminum cover of joint is M14*1.5,power slightly to prevent falling off due to tightening.