Views: 0 Author: Ruby Publish Time: 2026-03-18 Origin: Site
During the operation of a butt fusion machine, the machine frame may occasionally move unevenly when traveling forward or backward. Operators may observe that the movement becomes jerky or inconsistent rather than smooth.
One possible cause of this issue is air trapped inside the hydraulic hoses.
Hydraulic systems depend on stable oil pressure to ensure smooth movement of the machine frame.
When air is present in the hydraulic hoses, the oil flow can become unstable during operation. As a result, the machine may move in small increments instead of a continuous motion.
This condition does not usually indicate a mechanical problem. In most cases, it can be resolved by removing the air from the hydraulic system.
The following steps can help release air from the hydraulic hoses:
Properly connect the hydraulic quick couplings
Open the oil tank cap
Keep the pressure relief valve closed
Move the machine forward and backward for about 20 seconds
Repeat the process several times
By repeating the forward and backward movement, the trapped air inside the hydraulic hoses can be gradually released, allowing the system to return to normal operation.
The following video demonstrates the actual procedure for removing air from the hydraulic hose.
