strokes. This happens when the piston does not stroke the hammer tool, and the impact force and energy is absorbed by bolts and the tool retaining screws and not by the tool itself. This PM 220 causes an erosion and the subsequent rupture of the tip. The breaking in these cases usually appears at
LOW TEMPERATURES At low temperatures it is recommended that the PM 220 tools be heated before use and if it is possible use at low speed for a progressive increase in temperature of the machinery.
hammer pin PM 220 as a result of the idle strokes when the tip of the tool is separated from the rest of the hammer. CONSTANT 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. DO
