Maintenance
What should I do if the breaker doesn't strike or the striking force is weak?
First, there is not enough high-pressure oil flowing into the interior of the breaker to prevent it from striking.
Cause: Pipeline blockage or damage; There is not enough hydraulic oil.
The handling measures are: Inspect and repair the supporting pipelines; Check the fuel supply system.
Second, the phenomenon where there is sufficient high-pressure oil but the breaker does not strike.
Cause handling measures
Correction of incorrect connection of the inlet and return oil pipes
Adjust the system pressure when the working pressure is lower than the specified value
The reversing valve core is stuck. Remove the valve core for cleaning and repair
If the piston is stuck, check whether it moves smoothly by pushing or pulling it with your hand. If the piston cannot move smoothly, it indicates that there are scratches on the piston and the guide sleeve. The guide sleeve should be replaced. If possible, the piston should also be replaced
The nitrogen pressure in the accumulator or nitrogen chamber is too high. Adjust the nitrogen pressure in the accumulator or nitrogen chamber
The stop valve is not open. Open the stop valve
If the oil temperature exceeds 80 degrees, check the cooling system and reduce the oil temperature to the working temperature
Three, the piston moves but does not strike.
In this situation, the main cause is that the drill rod is stuck. You can remove the drill rod to check if the drill rod pin and the drill rod are broken or damaged. If necessary, observe whether there are any small pieces of broken or fallen pistons on the inner and outer sleeves that are stuck in the drill rod. If so, clean them up in time.
Related articles
- Several parts modification methods for the Caterpillar CAT950E loader
- How to troubleshoot the faults of the brake caliper of a loader
- Analyze the reasons why the excavator boom of CAT320B cannot descend
- How to install and adjust the speed control motor of the CAT325L excavator
- The working principle and troubleshooting methods of the hydraulic overload protection system for me
- Sany Heavy Industry: Inter-city transportation is no longer a dream! The Jiangshan SE-565C with a ra
- Sany Heavy Industry: Noise-free, zero emissions, and long range! The industry's first 50-ton pure el
- There's a way to save energy and increase efficiency! The Liugong 886H hydrostatic loader has receiv
- Precautions and suggestions for the use and maintenance of loaders in winter
- Analyze the common faults of the gas control valve of the W4-60C excavator