BLEEDER VALVE

550 461 41 BREATHER Located at high points in hydraulic circuits, such as on cylinders or accumulators, this valve provides a simple way to release trapped air. Air bubbles in hydraulic oil can cause spongy, unpredictable movements, so bleeding the system is essential for both performance and operator safety.

Failure to properly bleed a system can lead to serious issues, from poor drilling accuracy to premature pump failure. For example, air trapped in the feed cylinder circuit prevents the drifter from maintaining steady pressure against the rock, which slows down penetration rates and can damage the drill string.

Check for any external leaks around the valve body during routine inspections. If the valve is seized, stripped, or leaking, it should be replaced immediately. When bleeding a circuit, always use the correct wrench to avoid damage and ensure you can get a proper seal afterward.