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In the process of using the pile hammer, especially in the process of using the new hammer, there are many cases where the diesel hammer cannot work normally due to the fault caused by the injection mouth. The main reason is that when the upper piston reciprocates, it will cause a certain amount of metal powder. These powders do not easily get into the plunger of the injector and cause internal leakage. The pressure in the tubing from the pump to the nozzle cannot be established and the pile hammer cannot work normally.

Therefore, if the nozzle can be cleaned regularly, it can effectively avoid leakage and blockage in the nozzle and ensure the normal operation of the pile hammer.