Common faults and solutions of breakers


The breaker is actually a very common equipment, especially on the construction site, it can almost be said to be an indispensable equipment, but because of the working environment, the breaker often has various failures. Below, the breaker manufacturer will briefly talk about several common failures of the breaker and the solutions to the failures.

1. Decrease in intensity

The reason for the decrease in strength may be blockage of the breaker oil circuit, insufficient control bolt stroke, oil circuit leakage, excessive breaker oil temperature, etc., which will cause the breaker to have insufficient impact stroke, reduced impact force, and overall performance degradation. appear.

Solution: The breaker manufacturer suggests that the hydraulic system and nitrogen pressure can be checked and adjusted when the above conditions occur. Once the parts are found to have poor sealing, the components can be ground or replaced and the hydraulic pipelines can be cleaned.

2. Abnormal vibration of the hammer tubing

The breaker manufacturer believes that the above situation may be caused by the damage of the leaking diaphragm of the accumulator, which will cause the pressure of the nitrogen in the handle of the breaker to decrease, which will result in abnormal vibration of the breaker's tubing.

Solution: Check the gas pressure of the accumulator. If the specified pressure cannot be maintained, check whether the diaphragm is damaged. In addition, it is necessary to adjust the nitrogen pressure of the breaker to achieve equilibrium.

3. Oil leakage

The oil leakage is mainly due to the excessive wear of the sealing ring and other parts which causes the sealing performance to decrease, which in turn causes the oil connection to loosen.

Solution: Replace the sealing ring at the oil leakage position and tighten the oil pipe joints.

4. Frequency drops

The breaker manufacturer believes that the frequency drop may be caused by the loosening of the drill rod, the insufficient pressure or flow of the hydraulic system, the failure of the safety valve, the wear of the hydraulic seal, and the contamination of the hydraulic grease.

Solution: Check the oil pump of the breaker. If the oil pressure or flow is too high or too low, adjust it in time to control the hammer head; check the oil circuit to avoid the impact frequency of the breaker due to the blockage of the pipeline Affected; Replace worn parts, tighten the drill rod, and fix the drill rod well.

5. Discontinuous action

There may be three reasons for poor continuity of action. One is that the oil supply is blocked due to the blockage of the oil circuit, which makes the piston unable to obtain stable power; the other is that the direction of the reversing valve is wrong, the pressure of the hydraulic system is insufficient, and the piston is stuck. , Stop valve failure and other problems, and then cause the impact of stagnation; third, the drill rod is stuck, causing the continuity and periodicity of the breaker to be affected.

Solution: The breaker manufacturer believes that it is possible to check the hydraulic oil circuit, and take immediate measures once it is found to be blocked to clean up or directly replace the blocked part; focus on checking the shut-off valve, interface, reversing valve direction and piston of the oil pipe; check or Adjust the state of the drill rod, polish the drill rod with a grinding wheel or oil stone, and fill in lubricating oil in time.


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