How to use:

1.Use 220 V alternating current (ac)

2. Before using:Check the connection of the high-voltage tube,make sure that the pressure gauge is normal without looseness, slurry must be clean without sundry.

3.Grouting process:Set up a operation platform→plug in→crack&leak analysis→bore holes→embed the needle(leave the black part in the hole)→connect the needle driver between the needle and the machine→inject slurry in the hole→wait for solidification→knock off the needle(the black part should be left in the hole)→clean and repair the surface.