1, the installation of hydraulic wrench, before using the return valve stem clockwise tightening.

2, hydraulic Rama working oil to anti-wear hydraulic oil is appropriate, work oil to ensure clean.

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3, according to the size of preloaded nuts matching hexagonal sleeve.

4, with a quick connector with high pressure, low pressure hose into the wrench and the valve connection.

5, back and forth to lift the piston starting rod straight forward forward, claw hook corresponding back, pull the object pulled out

6, the angle of the wrench connecting rod should be controlled in the scale of the reaction angle within the range.

7, to suppress.

8, after the end of the preload, put the valve handle in the middle of the position, so that the pressure back to zero.

9, remove the quick connector, the exposed parts of the joints must be covered with plastic cover;