DO NOT BEND Using the power of the arm of the hammer to break, 350 290 GK - / MK 291 or using the tool of the hammer as a lever sooner or later it will break. The same thing occurs when the tool leans incorrectly or when it is introduced continuously between cracks.
CONSTANT MK 350 GK 290 - / 291 LUBIRICATION Even if the hammer is provided with a lubrication system, it is necessary to lubricate the tip of the tool to avoid the friction between metals.
the piston does not stroke the hammer tool, and the impact force and energy is absorbed by - 350 290 MK / GK 291 bolts and the tool retaining screws and not by the tool itself. This causes an erosion and the subsequent rupture of the tip. The breaking in these cases usually appears at
