Analysis of Hydraulic Breaker Failure to Strike: Three Causes and Countermeasures

　　The hydraulic breaker of the excavator, as a crucial component of construction machinery, directly affects construction efficiency and operational quality. However, in practical operations, the malfunction of the hydraulic breaker not striking or striking intermittently can cause trouble for construction personnel. This article will analyze in detail the three main reasons for the excavator hydraulic breaker not striking and provide corresponding solutions to help you quickly troubleshoot and restore the normal operation of the hydraulic breaker.

　　Insufficient High-Pressure Oil Flow Leading to No Striking

　　The operation of the excavator hydraulic breaker relies on the high-pressure oil flow provided by the hydraulic system. When there is a blockage or damage in the pipelines, or insufficient oil supply in the hydraulic system, the hydraulic breaker's internal high-pressure oil may not be sufficient, leading to the failure to strike. In this case, construction personnel should first check the integrity of the associated pipelines for blockages or damages. Additionally, inspect the oil supply system to ensure an adequate supply of hydraulic oil, and check the working condition of key components such as the hydraulic pump and relief valve to ensure the normal operation of the hydraulic system.

Analysis of Hydraulic Breaker Failure to Strike: Three Causes and Countermeasures

　　Sufficient High-Pressure Oil but No Striking

　　When there is sufficient high-pressure oil inside the excavator hydraulic breaker but it still does not strike, it may be due to a malfunction in the control system. In this situation, construction personnel should inspect components such as the control valve and directional valve of the hydraulic breaker to ensure their proper operation. Also, check the electrical system to ensure accurate signal transmission, preventing malfunctions caused by control system errors or failures.

　　Piston Movement Without Striking

　　If the piston of the excavator hydraulic breaker moves normally but does not produce a striking effect, it may be due to the chisel rod jamming. In this case, construction personnel should remove the chisel rod, check the chisel rod pin and rod for breakage or damage. Additionally, observe if there are small pieces of damage blocking the chisel rod on the inner and outer sleeves and piston surfaces. If any of these conditions exist, promptly clean and replace the damaged parts to ensure the normal operation of the hydraulic breaker.

　　In conclusion, the failure of the hydraulic breaker not striking may be caused by various reasons. Construction personnel should systematically investigate each issue and take appropriate measures to ensure the normal operation of the hydraulic breaker. Additionally, strengthen maintenance efforts in daily use, conduct regular inspections, and replace vulnerable parts to prolong the lifespan of the hydraulic breaker.