Apply same direction of boom force in line with the tool and place the tool in the rock with hammering surface as vertical as possible. If hammering surface is oblique, the tool may slip during hammering. This causes the tool to seize and to be broken and the piston to be damaged. When breaking, fully stabilize the tool first and then select the point of a rock on which hammering can be performed in a stable condition.

Do not lifting things with the breaker
Lifting materials by hanging wire in the bracket or the tool not only causes damage to the breaker but also is very dangerous when operating.