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Common faults and troubleshooting methods of excavator breakers

Excavator breakers are widely used in highway and railway construction, construction, mining and other industries. However, the working environment of hydraulic breakers is very harsh, and failures may occur during use, which will seriously affect the construction of the project. This time We comprehensively analyze the causes of failures and provide solutions.

Fault 1: The impactor does not impact, which may be caused by various reasons, which may be excessive oil temperature, blocked pipeline, insufficient hydraulic oil, insufficient oil supply, etc.

Solution: check the cooling system, lower the oil temperature, check the oil pump, dredge the pipeline, check the volumetric efficiency of the oil pump, if it is low, replace the oil pump, if the oil suction is insufficient, check the filter and hose.

Fault 2: The abnormal impact of the hydraulic breaker mainly has two aspects, one is that the surface of the piston and the control valve is damaged, and the other is that the piston is emptied or does not collide with the drill rod.

Solution: Remove and clean the damaged parts, and carefully remove the burrs with oil. Polishing makes the valve core and impact piston move flexibly; operating the main engine makes the drill rod tightly against the broken object.

Fault 3: The hydraulic breaker leaks oil, and the hydraulic breaker leaks oil in many places. It is considered bad at the pipe joint, the lower cylinder body, the air-filled plug or the sealing ring of the single valve, and the sealing ring of the cylinder head is bad.

Solution: replace the sealing ring.

The method of troubleshooting the hydraulic breaker, this time we will tell you the rest.

Fault 1: The hydraulic system of the hydraulic breaker is overheated; the cause may be that the pressure setting of the safety valve is too low, the cooling capacity is insufficient, the hose is too thin, and the back pressure is too large

Solution: This kind of problem needs to be tested and solved by contacting the dealer, or you can replace or repair the pipeline yourself.

Fault 2: The piston of the hydraulic breaker moves but does not impact; it may be that the drill rod is stuck.

Solution: Remove the drill rod and repair it with a grinding wheel or oil stone.

Fault 3: The air leakage problem is serious; the sealing ring in these places may be damaged. Solution: Replace the seal ring of the hydraulic breaker.

These are the only possible failures of the hydraulic breaker for the time being, thank you for reading.

 

 

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