CHARGING CLAPET

770 051 43 CHARGING CLAPET This charging valve is the access point for servicing the hydraulic accumulator, which acts as an energy reservoir for the rock drill's impact mechanism. It allows a technician to connect a charging kit to fill or adjust the nitrogen gas pressure on one side of the accumulator's diaphragm or piston. This stored gas pressure is what provides the power for effective percussion and dampens hydraulic shock.

Sans un pré-gonflage correct de l'accumulateur, les performances de forage se dégradent immédiatement. Une lente fuite à travers cette valve fera perdre au perforateur sa force de frappe, entraînant des vitesses de pénétration réduites et un fonctionnement inefficace. Cela accroît également le risque d'endommager les flexibles et les joints hydrauliques dans tout le circuit, car les pointes de pression du circuit de percussion ne sont plus convenablement amorties.

If you find yourself needing to top up the accumulator's nitrogen pressure more frequently than usual, the charging VANNE is a likely cause. Before attempting a replacement, the accumulator must be completely and safely depressurized. Installing a new VANNE is a simple task, but ensuring the sealing surfaces are clean is key to preventing future leaks.