1. Dry Firing of Guardrail Pile Drivers

The piston of the hydraulic hammer moves reciprocally, but the impact force is not transferred to the rock. The operation manual for hydraulic hammers strictly prohibits dry firing. Dry firing is divided into complete dry firing and incomplete dry firing, with incomplete dry firing causing the most damage to the breaker hammer.

2. Continuous Striking of Guardrail Pile Drivers

When the breaker hammer works, it transfers tremendous energy to the rock through the chisel. If the rock breaks timely, the energy is released. However, if the rock is too hard and does not break after multiple strikes, the energy cannot be released timely and turns into significant heat energy, raising the temperature of the chisel tip to over 400 degrees Celsius. This leads to the decarburization and softening of the chisel, resulting in surface rolling or even chipping off.

3. The Force Direction of Guardrail Pile Drivers and the Steel Chisel Are Not Aligned

When breaking rocks with a steel chisel, the operation should be kept in a vertical direction. If the striking direction is tilted, the chisel may slip off during the hammering operation, causing the chisel and piston to break or jam. Therefore, when performing breaking operations, a proper strike point should be selected to ensure stable hammering.