When there is sufficient high pressure on the breaker’s high-pressure side but the breaker still fails to operate normally, several potential causes should be considered. The issue may result from a blockage in the hydraulic circuit, an internal malfunction within the breaker, or impurities entering the hydraulic system all of which can disrupt pressure flow and reduce performance. Back pressure forming at the oil return nozzle can also hinder operation. In these cases, it is recommended to contact a certified Beilite agent for technical inspection and repair. Additionally, a blocked excavator filter may restrict hydraulic flow; cleaning or replacing the filter can resolve this. If the nitrogen pressure in the back head is too low, it should be checked and adjusted to the standard range. However, if the same issue persists even after recharging the nitrogen, professional assistance from a Beilite agent is necessary to prevent further damage and ensure stable operation..