How to adjust the hydraulic breaker?
The hydraulic breaker is designed to adjust the bpm (beats per minute) by changing the piston stroke while keeping the working pressure and fuel consumption constant, so that the hydraulic breaker can be widely used.
However, as the bpm increases, the impact force decreases. Therefore, the bpm must be adjusted according to the working conditions.
The cylinder adjuster is installed on the right side of the cylinder. When the cylinder adjuster is fully tightened, the piston stroke is maximized and the shock force (bpm) is minimized.
Conversely, when the adjuster is loosened about two turns, the piston stroke becomes minimum and the impact force (bpm) becomes maximum.
The circuit breaker is delivered with the cylinder adjuster fully tightened.
Even with the adjuster loose two turns, the shock didn’t increase.
valve regulator
The valve regulator is mounted on the valve housing. When the adjuster is open, the shock force is increased, and fuel consumption is increased, and when the adjuster is closed, the shock force is decreased, and the fuel consumption is decreased.
When the oil flow from the base machine is lower or when the hydraulic breaker has been installed on large base machine, the valve adjuster can control the amount of oil flow artificially.
The hydraulic breaker do not operate if the valve adjuster is fully closed.
Adjusting items | Procedure | Oil flow rate | Operating pressure | Bpm | Impact power | At delivery |
Cylinderadjuster |
Open Closed |
No change |
No change |
Increase Decrease | Decrease Increase | Full closed |
Valve adjuster |
Open Closed |
Increase decrease |
DecreaseIncrease |
Increase Decrease |
DecreaseIncrease |
2-1/2Turn out |
Chargingpressure in back head |
Increase decrease |
Increase decrease |
Increase decrease |
Increase decrease |
Increase decrease |
SpecifiedSpecified |
If you need anything,please contact us.my whatapp:+8613255531097
Post time: Jul-19-2022