Impact drill hammer strength is bad what ah?
The principle is the impact of hammer hammer motor drives a reciprocating movement of the piston, the piston through the air pushes the "hammer" reciprocating impact.
It may be that the handle screw has gone off, or the eccentric shaft is broken;There is a hammer piston failure. In addition, if the motor turns without hammering, it may be a problem with the gear;
Check the butter, there are many reasons for the impact, such as impact wear, O ring wear, and so on, so it is recommended to the professional maintenance shop maintenance;
