retaining screws and not by the tool itself. This causes PM 220 an erosion and the subsequent rupture of the tip. The breaking in these cases usually appears at the top of the hammer pin as a result of the idle strokes when the tip of the tool
CONSTANT LUBIRICATION Even if the hammer is PM 220 provided with a lubrication system, it is necessary to lubricate the tip of the tool to avoid the friction between metals.
CORROSION Rust or corrosion on the tool occurs when the tool is stored outdoors and it is not well lubricated. This can be avoided by simple and easy lubrication and maintenance of hammer’s PM 220 tool away from moisture when not in use.
